California Permit Research • 2026
Find HVAC Permits, Check Applications & Review Inspections in California
Replacing a furnace, installing a heat pump, or checking the permit history of an air-conditioning system? Start with the building department that has jurisdiction over the property, then use its official permit records and inspection services.
A California HVAC permit search usually begins with a city or county building department. California does not operate one universal public database containing every local HVAC installation permit. Permit applications, approval statuses, inspection results, and historical records are generally maintained by the authority responsible for the property.
For an HVAC permit, identify the property’s jurisdiction, open that building department’s permit portal, and search by property address or permit number. For a contractor license, use the separate California Contractors State License Board (CSLB) lookup. A valid contractor license is not proof that an HVAC permit was issued or finalized.
1. Official California HVAC Permit Search Portals
There is no single permit office for all California heating and cooling projects. A property inside an incorporated city may be served by a city building department, while a property in an unincorporated county area is often handled by the county. Some jurisdictions operate shared permitting services or have specialized arrangements.
Use the options below for major California cities. These are government-operated resources, not permit databases maintained by CountyPermitSearch.org.
Los Angeles Building & Safety
Search building permits, inspection reports, and property permit history. The city offers online permitting and inspection services.
Open LA permit report ↗San Diego Development Services
Look up permit records, application information, and inspection services. Simple mechanical permits may appear in the city’s Accela system.
Open San Diego DSD ↗San Francisco Building Inspection
Research permit and complaint tracking records by address, application number, applicant, or description keyword.
Open SF permit tracking ↗Sacramento Building Division
Find building inspection information, permit services, and inspection scheduling guidance for city projects.
Open Sacramento inspections ↗A Los Angeles mailing address does not necessarily mean that the City of Los Angeles issues the permit. The same distinction applies in other metropolitan areas. Verify whether the parcel belongs to an incorporated municipality or an unincorporated county area before searching.
Which search system should you use?
| Property location | Starting point | What to verify |
|---|---|---|
| Inside city limits | City building or development services department | Mechanical permit type, application status, inspection history |
| Unincorporated county | County building and safety department | County permit record and inspection requirements |
| Special facility or regulated project | Appropriate specialized authority | Whether local or state-agency approval applies |
| Uncertain jurisdiction | Official city/county parcel or address jurisdiction lookup | Actual permitting authority before filing |
For properties in the City of Los Angeles, our related Los Angeles building permit search guide explains property-address lookups and the permit report system. You can also consult our LADBS permit search guide for additional search techniques.
2. How to Search California HVAC Permits by Address or Number
The most reliable starting information is the street address where the HVAC equipment is installed. If you already have a permit number, use it because it usually narrows the search more effectively.
- Confirm the permit jurisdiction. Determine whether the property is served by a city, county, or special permitting authority. Do not assume the county assessor and the permit department are the same agency.
- Open the official permit database. Look for a service labeled Permit Search, Building Records, Permit & Inspection Report, Accela Citizen Access, or Project Search. The exact interface varies.
- Search the property address. Enter the street number and name. If a full address yields no result, try a shorter street-name format or use a parcel number when the system supports it.
- Filter for mechanical or HVAC work. Search descriptions such as air conditioner, furnace, heat pump, HVAC replacement, mechanical, ductwork, or mini-split. Some systems group HVAC under a broader building or mechanical permit.
- Open the permit details. Review the permit number, work description, application date, issued date, applicant, current status, and inspection details where publicly available.
- Check final approval. Look for a finaled, completed, or closed status and inspect the final inspection record. An issued permit does not necessarily show that work was completed and accepted.
Information that helps locate an older HVAC permit
- Exact street address, including unit or suite where applicable.
- Assessor’s Parcel Number (APN), if the portal accepts it.
- Approximate installation or replacement year.
- Contractor name or company name.
- Permit number shown on an invoice or permit card.
- Description of the equipment installed.
For older installations, electronic records may not include scanned documents, inspection notes, or the complete mechanical permit history. Contact the building department’s records division if the online database returns incomplete results.
Example: checking a replacement air conditioner
Suppose a property owner wants proof that a central AC unit installed several years ago was permitted. The useful search is not merely for the street address: the owner should inspect the property’s permit list for a mechanical alteration or AC changeout, open the permit record, and confirm that the required final inspection was approved.
If no record appears, the next step is to ask the issuing department about its historical records. An empty online search does not conclusively prove that the work was unpermitted.
3. When Is an HVAC Permit Required in California?
Installing or replacing permanently connected heating and cooling equipment commonly requires a mechanical or building permit in California. The precise permit classification, exemptions, and additional approvals depend on the project’s scope and the authority having jurisdiction.
The California Energy Commission’s 2025 single-family HVAC guidance specifically identifies installation of a space-conditioning appliance, other than a plug-in room appliance, as requiring a building permit. This includes work that may appear simple to a homeowner, such as installing certain ductless mini-split systems.
| Project | Permit consideration | Possible additional review |
|---|---|---|
| Central air conditioner replacement | Generally requires a mechanical permit | Energy compliance and applicable testing |
| Furnace replacement | Generally requires a permit | Venting, gas connections, electrical, combustion safety |
| Heat pump installation | Generally requires a permit | Electrical supply, equipment placement, Energy Code documentation |
| Ductless mini-split | Permit generally required for permanent installation | Refrigerant, electrical, mounting and equipment standards |
| New ductwork or significant duct alteration | Frequently part of mechanical permitting | Duct sealing and verification when applicable |
| Routine filter replacement or ordinary servicing | Often does not require an installation permit | Confirm local exemptions if work extends beyond maintenance |
| Commercial rooftop HVAC replacement | Typically requires permit review | Structural supports, energy compliance, electrical and access requirements |
Replacing an existing furnace or air conditioner with a similar unit can still trigger permit and Energy Code requirements. Ask the building department about the actual equipment and installation scope before work begins.
Mechanical permits versus electrical and plumbing permits
An HVAC project can involve multiple building systems. For example, a heat pump conversion may require electrical circuit changes; a furnace replacement may involve gas piping or venting work; and a commercial rooftop unit may involve structural design.
The local building department determines whether those activities require separate trade permits, combined permit coverage, or additional plan review. Do not assume an HVAC permit automatically authorizes unrelated electrical or gas-system modifications.
4. How to Apply for a California HVAC Permit
Many California departments offer electronic permitting for straightforward residential equipment replacements. Larger renovations, new HVAC designs, complicated commercial installations, or changes to structural and electrical systems may require more detailed plan review.
- Choose the correct permit category. Review your department’s mechanical, HVAC, or building alteration permit options. Some jurisdictions provide a no-plan mechanical permit for qualifying work.
- Identify who will apply. The application may be submitted by an appropriately licensed contractor or an eligible owner-builder, subject to local and state requirements.
- Prepare equipment information. Gather manufacturer, model, capacity, equipment locations, project valuation, and descriptions of new or replacement components.
- Prepare applicable technical documents. The department may request mechanical plans, equipment specifications, load calculations, electrical details, or Title 24 energy compliance forms.
- Submit and pay required fees. Follow the official submission procedure. Keep the application confirmation and payment receipt.
- Wait for issuance when required. A submitted application is not an issued permit. Resolve corrections or plan-check comments before proceeding where approval must be granted first.
- Arrange inspections and complete closeout. Obtain required inspections, resolve corrections, and retain proof of final approval.
Documents commonly requested
Residential HVAC changeout
- Property and owner information
- Contractor license details
- Existing and proposed equipment description
- Model numbers and efficiency data
- Required Energy Code compliance certificates
- Equipment location or site information when requested
New or complex commercial system
- Mechanical drawings and equipment schedules
- System sizing and ventilation calculations
- Structural details where equipment loading changes
- Electrical and control information
- Applicable energy compliance documentation
- Other supporting plans required by the reviewer
These are preparation examples, not a statewide mandatory checklist. The building department decides which plans and forms are required for the particular job.
Who is responsible for obtaining the permit?
Before signing an HVAC installation contract, ask who will obtain the permit, whose name will appear on it, who will pay the official permit fees, who will schedule inspections, and who will provide the final inspection record.
California allows certain owner-builder arrangements, but those carry legal responsibilities and restrictions. Homeowners should review the CSLB consumer and owner-builder guidance before taking that role.
5. How to Check HVAC Permit Application Status
Once an application has been submitted, the local portal may show its progress through intake, review, issuance, inspections, and closure. Exact status names differ by jurisdiction, so read the definitions provided by that portal.
| Status | What it commonly means | Recommended next step |
|---|---|---|
| Submitted / Received | Application entered into the system | Check for completeness or intake requests |
| In Review / Plan Check | Department reviewing plans or documents | Monitor reviewer comments |
| Corrections / Revisions Required | Additional information or changes requested | Submit the requested corrections |
| Issued | Permit authorization has been granted | Follow permit conditions and schedule inspections |
| Inspection Pending | Required inspection has not been completed | Arrange inspection with the issuing department |
| Finaled / Closed / Completed | Required closure process recorded as complete | Save the final record |
| Expired | Permit no longer active under applicable rules | Ask about extension, renewal, or a new permit |
Important distinction: Building permit status and contractor license application status are different records. CSLB’s application-status system tracks contractor licensing matters, not municipal HVAC permit approvals.
What if the application is under review for a long time?
First inspect the permit account for correction notices, unpaid charges, missing signatures, or a required resubmission. If no explanation appears, contact the department with the application number, project address, and date of submission.
Processing periods vary widely by municipality and project complexity. There is no dependable statewide HVAC permit approval time that applies to every city and county.
6. California HVAC Inspections: Scheduling and Final Approval
Obtaining a permit is only one part of the process. The permit holder must also complete the inspections required for the project. Inspection requirements depend on whether the work involves a simple equipment replacement, new duct installation, gas connections, electrical changes, or more extensive mechanical construction.
For example, the City of San Diego states that work requiring inspection must be accepted by inspection staff and that the contractor or owner is responsible for arranging the necessary inspections.
What HVAC inspectors may review
- Installed equipment and consistency with approved permit scope.
- Equipment mounting, support, accessibility, and clearances.
- Electrical connections and protection where applicable.
- Gas piping, combustion air, venting, and exhaust provisions where applicable.
- Condensate management, drainage, and associated installation details.
- Duct installation, sealing, insulation, and ventilation requirements.
- Required compliance documentation and field verification results.
How to schedule an HVAC inspection
- Open the issuing agency’s inspection service. Look for Request Inspection, Schedule Inspection, or Inspection Services.
- Enter the permit identifier. Some systems also request a PIN, contact number, or account sign-in.
- Select the appropriate inspection. The category may be mechanical rough, HVAC, furnace, heat pump, or final mechanical.
- Prepare the installation. Ensure the equipment, required documents, and affected work are accessible. Avoid concealing work before the required inspection.
- Review the result. Check whether the inspection passed, was partially approved, or requires corrections.
- Obtain final sign-off. Schedule reinspection if necessary and confirm the permit reaches its required final status.
The City of San Diego provides inspection scheduling information and identifies selected residential HVAC equipment, including heat pumps, mini-splits, furnaces, and condensing units, among project types that may qualify for virtual inspection.
Review official San Diego inspection rules ↗What happens if an HVAC inspection fails?
A failed inspection does not automatically mean the entire project must be started again. Review the correction notice and determine precisely what the inspector requires. The installer may need to modify an equipment connection, supply a missing compliance form, improve access, or correct another installation condition.
After completing corrections, request the appropriate reinspection. Follow the department’s instructions on correction deadlines and additional inspection charges.
Permit card or PDF, approved plans when applicable, energy compliance documents, inspection notices, correction reports, and confirmation of final approval. These may be useful for warranties, future remodeling, and property transactions.
7. California HVAC Energy Code Requirements in 2026
California’s 2025 Building Energy Efficiency Standards took effect on January 1, 2026 for permit applications within their scope submitted on or after that date. These standards are part of Title 24, Part 6 of the California Code of Regulations.
The Energy Code addresses heating, ventilation, cooling, energy performance, and related construction features. Requirements differ according to residential or nonresidential use, new construction or alteration, system type, and the approved compliance approach.
Official standards, compliance manuals, forms, and supporting information for the current code cycle.
Open the 2025 Energy Code ↗Energy compliance and HVAC replacement
Replacing an existing HVAC system can trigger requirements for equipment performance, duct systems, installation documentation, and field verification. Not every replacement requires the same set of tests or certificates.
The project team should identify the applicable 2025 compliance pathway and use the required forms rather than copying documentation from an older project.
HERS versus ECC: important 2026 change
Readers researching HVAC permits may still encounter references to HERS testing. California changed the framework for field verification and diagnostic testing under the 2025 Energy Code.
Beginning January 1, 2026, the Energy Code Compliance (ECC) Program became the framework for these compliance functions. Earlier Energy Code projects may continue using HERS terminology, while 2025-code compliance documentation uses ECC terminology.
| Topic | Older records | 2025 Energy Code projects |
|---|---|---|
| Compliance verification program | HERS terminology | ECC Program terminology |
| Third-party field verification | HERS rater | ECC-Rater |
| Compliance documentation | Forms applicable to the older code cycle | 2025-code forms and registered documents when required |
| Permit enforcement | Local building authority | Local building authority, with applicable ECC documentation |
The California Energy Commission explains that ECC verification is integrated into the permit process. When verification is required, the appropriate registered compliance documentation is typically part of the project records. Certain urgent HVAC alterations have special timing provisions for registering certificates before permit closure.
Find explanations of registered certificates, approved providers, field verification, and the transition from prior HERS compliance procedures.
Review the ECC Program ↗Which California HVAC forms may be needed?
The California Energy Commission publishes forms for different occupancy types and project categories. Residential HVAC alterations may involve CF1R certificates of compliance, CF2R certificates of installation, and CF3R verification documents when the particular compliance pathway requires them.
For example, the 2025 single-family form library includes documents addressing alterations to space-conditioning systems, mechanical installation, duct leakage testing, airflow, and refrigerant charge verification.
These forms are not interchangeable. The actual selection depends on the project and its compliance approach.
Access California Energy Commission forms for new construction, additions, alterations, installation, and field verification.
Find official compliance documents ↗Do all HVAC replacements require an independent rater?
No blanket answer applies. The California Energy Commission publishes both registered compliance forms for projects requiring field verification and nonregistered forms for qualifying work that does not require it. The type of equipment, alteration, ductwork, and applicable code provisions determine which process applies.
Ask the installer and local building department which specific verification requirements apply before arranging an inspection.
8. Verify a California HVAC Contractor’s License
Before hiring an HVAC installer, check the contractor’s license directly through the California Contractors State License Board. This is a separate task from searching municipal building permit records.
California’s C-20 classification is associated with warm-air heating, ventilating, and air-conditioning contracting. Contractors may have other classifications relevant to a particular project’s scope. Verify that the contractor’s classification authorizes the proposed work rather than relying solely on an advertisement or company name.
- Visit CSLB’s license lookup. Use its official contractor search, not a third-party directory.
- Search the contractor. Enter the license number or business name.
- Review the record. Verify license status, classification, and publicly displayed bond, workers’ compensation, and disciplinary information where applicable.
- Match the business identity. Compare the contractor information against the company named in the installation proposal.
- Confirm permitting responsibility. Ask for the issued permit number and confirmation that the required final inspection will be completed.
Official contractor license, registration, and related public-record lookup.
Check a contractor license ↗A contractor may hold an active license without having obtained the mechanical permit for your particular job. Likewise, an issued permit does not replace the need to verify the company you hire.
9. California HVAC Permit Fees, Timelines & Expiration
California has no uniform local HVAC permit fee applicable to every property. Cities and counties establish their own permit and inspection fee schedules, subject to applicable law. The amount may depend on project valuation, equipment type, permit category, required plan review, and additional trade work.
| Factor | Why it matters |
|---|---|
| Jurisdiction | Each department publishes its own fee structure and service procedures |
| Project scope | Simple changeouts and major system redesigns have different requirements |
| Plan review | Projects requiring design review may incur additional fees and processing stages |
| Electrical or gas work | Additional trade permits or reviews may be required |
| Corrections and reinspections | Some departments assess additional charges for certain repeat inspections or revisions |
| Permit expiration | Inactive or expired permits may require reinstatement or a new application |
How to get an accurate fee
Open the building department’s official fee schedule or online application. Choose the actual permit category and enter the requested project details. If the price is unclear, ask the department to explain the mechanical permit fee, any plan review charges, and additional inspection costs.
Do not treat an online estimate as the final payable amount unless the issuing agency confirms it.
How long does approval take?
Some departments offer streamlined processes for eligible mechanical changeouts. Other projects require engineering review, corrections, or coordination between several divisions. The schedule depends on application completeness, jurisdiction workload, and project complexity.
The relevant portal’s posted processing information is more useful than a statewide average. For ongoing applications, watch for review comments instead of assuming that no status change means approval is imminent.
How long is a mechanical permit valid?
Permit validity, inactivity rules, and extensions depend on the governing code and local administration. Review the issued permit conditions and contact the department before the permit expires. Do not assume an old permit remains valid indefinitely.
10. Troubleshooting HVAC Permit Records and Open Permits
No HVAC permit appears for the address
Confirm the correct jurisdiction first. Then try alternate address formats, the parcel identifier if supported, and related work-description terms. Ask the department whether older records are stored in a separate archive or searchable only by staff.
The permit is issued but has no final inspection
Examine the inspection history. An issued permit authorizes the permitted work but does not necessarily establish completed, approved installation. Ask the permit holder and local department which inspections remain outstanding.
The contractor is no longer available
Contact the building department before hiring someone to close the project. Explain that the original contractor is unavailable and request the department’s procedure for changing the responsible contractor, amending the permit, or completing inspections.
The installer says a permit was unnecessary
Ask for the specific local exemption and have the department confirm it. A contractor’s statement alone is not sufficient evidence that a permanent furnace, air conditioner, or heat pump replacement is exempt.
The system was installed without a permit
Do not submit false installation dates or conceal work from the inspector. Explain the actual situation to the local building department and ask about an after-the-fact permit, required documentation, inspections, and possible corrective work.
The permit is expired
Find the original permit number, expiration information, work completed, and inspection history. Then ask whether the agency allows an extension, reinstatement, or a new permit. The answer may depend on whether code requirements changed after original issuance.
Energy verification records are missing
Contact the installing contractor and the relevant compliance provider or registry. Ask the building department which registered forms are required for final approval under the project’s applicable code cycle.
A property buyer finds unfinished HVAC permits
Request the underlying permit and inspection records, rather than relying only on a status label. Ask the seller for equipment invoices, contractor details, compliance documentation, and confirmation of any unfinished corrections. Consider consulting an appropriate licensed professional before accepting the installation as compliant.
11. A Practical HVAC Permit Checklist Before You Start
Use this checklist when planning a furnace, heat pump, central AC, or mini-split project. It is designed to reduce missing documentation and unnecessary follow-up.
- Identify whether the property is inside city limits or an unincorporated county area.
- Find the official building department and correct permit category.
- Confirm whether a mechanical permit and other trade permits are required.
- Verify the contractor’s CSLB license and applicable classification.
- Confirm who will apply for the permit and pay agency fees.
- Collect equipment model numbers, ratings, and installation details.
- Determine the appropriate Title 24 Energy Code compliance pathway.
- Prepare registered ECC documentation if required.
- Obtain permit issuance before starting work when required.
- Arrange any required rough, final, or specialized inspections.
- Resolve correction notices and obtain final sign-off.
- Save the final permit and inspection documentation.
What to ask your HVAC contractor
Before work begins, request a written explanation of the permit plan. A useful question is: “Which building department will issue the permit, who is responsible for energy verification, and when will you give me proof of final inspection approval?”
This focuses the conversation on the complete, inspected project instead of just the installation appointment.
12. Frequently Asked Questions
Is there a statewide California HVAC permit search website?
No single statewide public portal contains every local HVAC permit. Search the responsible city or county building department’s database. State sites such as CSLB and the California Energy Commission provide licensing and code resources, not a consolidated local mechanical permit history.
Can I search an HVAC permit using only an address?
Many local permit portals support address searches. Others may require a permit number, project identifier, or parcel information. Start with the exact property address and follow the portal’s available search options.
Do I need a permit to replace an air conditioner in California?
A permanent central AC replacement generally requires mechanical permitting. Confirm the applicable category, any exemptions, and required energy verification with the local building department.
Does installing a mini-split require a permit?
Permanent ductless mini-split installations generally require a building or mechanical permit. The California Energy Commission’s single-family HVAC guidance specifically addresses the permitting and verification requirements for DIY split systems.
Does replacing a furnace require a building permit?
A furnace replacement generally requires local permitting. Gas, venting, electrical, and safety requirements may also apply depending on the project.
How do I know whether the HVAC permit passed inspection?
Open the official inspection history and check the final mechanical inspection result and permit closure status. An inspection appointment or issued permit alone does not confirm final approval.
What is the difference between an issued and a finaled permit?
Issued generally means permission to perform the authorized work has been granted. Finaled usually means the required inspections and closure process have been completed. Check the department’s own status definitions.
What if an HVAC permit does not appear online?
Try alternate address formats and related work descriptions, verify the jurisdiction, and contact the agency’s records staff. Older permit information may be incomplete or stored outside the public portal.
Are HERS inspections still required in 2026?
Under the 2025 Energy Code, relevant field verification and diagnostic testing is administered through the ECC framework. Earlier projects may continue to use HERS terminology. Whether independent verification is required depends on the applicable project and code provisions.
Can I apply for an HVAC permit without a contractor?
Certain projects may qualify for an owner-builder application, subject to California rules and local building department requirements. Review CSLB owner-builder guidance before assuming those responsibilities.
How much does an HVAC permit cost in California?
There is no single statewide local mechanical permit price. Fees depend on the issuing department and the project, including possible plan review and other trade permits.
Can a homeowner schedule the final HVAC inspection?
Some jurisdictions allow owners or authorized contacts to schedule inspections through their portal or inspection line. The permit holder remains responsible for ensuring the required process is completed. Follow the specific department’s rules.
What should I do if my HVAC work was completed without a permit?
Contact the responsible building department and describe the completed installation accurately. Ask whether an after-the-fact permit, corrective work, documentation, or inspections are required.
Can I use a CSLB license search to find HVAC installation permits?
No. CSLB searches contractor licensing records. Local building departments maintain HVAC installation permit records. These two sources answer different questions.
13. Official California HVAC Permit and Energy Resources
The following first-party resources can help you verify permit requirements, inspection procedures, license information, and the energy documents that may apply to HVAC installations.
2025 single-family HVAC requirements, alterations, heat pumps, equipment, and verification questions.
Read official HVAC guidance ↗Learn about 2026 field verification requirements, registered compliance records, and the HERS-to-ECC transition.
Explore ECC requirements ↗Check licensing records before hiring an HVAC installer.
Search contractor licenses ↗Look up municipal permit and inspection records for properties under City of Los Angeles jurisdiction.
Search Los Angeles permits ↗Find guidance on permit history, current project records, and records requests.
Find San Diego permit records ↗Search city permit records by address, permit or application number, applicant, and keywords.
Search San Francisco records ↗14. What to Do Next
If you need to find an existing California HVAC permit, begin with the building department responsible for the property’s exact location. Search the address, review the permit description, and check inspection records for final approval.
If you are planning a new installation, confirm the permit category and required energy compliance documentation before work starts. For 2026 projects, be particularly careful to distinguish older HERS records from the current ECC compliance process.
Finally, retain both the issued permit and proof of final inspection. Together, they offer a much clearer record of the installation than a contractor invoice alone.