What the County requires
The Building Permits & Inspection Division's FAQ (read 23 October 2026) answers "Do I need a Permit?" with the code rule: anyone who intends to "erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system" must first get a permit. Its list of typical permit projects names "Heating and Cooling System", "Gas Line" and "Whole house fan".
The same page lists the residential permits that "can be automatically issued online":
| Issued online on payment | Not on that list (expect plan review) |
|---|---|
| Residential heating and cooling (new install or replacement) | A new duct system in an addition or ADU |
| Residential electrical panel repair or replacement | Gas line extensions on their own |
| Residential re-roof (no structural changes) | Anything that moves walls |
| Residential water heater | |
| Residential sewer line repair or replacement | |
| Residential solar via SolarAPP+ (contractor use only) |
A like-for-like AC or furnace swap is the first row. If the job grows into new ductwork for added space, it rides on the addition's building permit instead. This page covers the unincorporated County only; a house in Elk Grove, Citrus Heights, Rancho Cordova or the City of Sacramento is permitted by that city.
Who can pull it
A CSLB-licensed C-20 contractor. California's C-20 Warm-Air Heating, Ventilating and Air-Conditioning classification is the HVAC license (CSLB Licensing Classifications). Check it on CSLB's Check a License before you sign; 81.8% of the 581 firms on County HVAC permits matched an active CSLB license by name.
You, as an owner-builder. The County's AP-16 notice says "We will not issue a building permit until you have read, initialed your understanding of each provision, signed, and returned this form". It makes you "the responsible party of record on the permit" and warns that "a frequent practice of unlicensed persons is to have the property owner obtain an 'Owner-Builder' building permit". If an installer asks you to pull the permit for a job they are doing, that is the warning in writing.
How to apply and get it inspected
- Apply in Accela Citizen Access. Register, log in and choose the residential heating and cooling permit. The County only takes electronic applications.
- Pay; the permit issues. For this permit type the FAQ says permits are "issued automatically when permit payment has been made".
- Book inspections online, by phone on 916-875-5296 or by texting 855-280-5383 (Scheduling Inspections). Book by 5 p.m. for the next day; the County cannot promise a time. Have an "OSHA approved ladder to access roof or attic" ready.
- Final. The FAQ says that for home projects "Your signed job card for final is your Certificate of Occupancy". Keep it with the permit for a sale or refinance.
The County's mechanical inspection codes:
| Code | Inspection |
|---|---|
| 460 | HVAC Ducts |
| 461 | HVAC Equipment |
| 465 | Gas Vents / Flues |
| 467 | Condensate Drains |
| 468 | Refrigeration Equip Piping |
| 499 | Final Mechanical |
Which ones your job needs depends on the scope; a straight changeout usually ends at 499.
What it costs
The County's building pages do not post an HVAC fee table; the fee is calculated in Accela and shown before you pay. One add-on is published: the County's Technology Fee Notice gives the current technology fee as 4.5% and proposed 6.5% with an $850 cap from 1 July 2025 (County Code §16.140.010). For questions, the division's line is 916-875-5296.
What 7,937 County HVAC permits show
| Measure | Sacramento County HVAC |
|---|---|
| Permits on homes, October 2023 to September 2026 | 7,937 |
| Firms | 581 |
| Firms with a permit in the last 12 months of the file | 321 |
| Usual filed value | $15,268 |
| Middle half of firms' usual value | $10,000 to $15,950 |
| Finaled (permits a year or more old) | 84.1% |
| Usual days from issue to final | 56 |
| 10th / 90th-percentile firm (10+ permits) | 66.2% / 94.0% |
| Busiest / quietest month | July (index 160) / November (62) |
County HVAC filings peak in July at an index of 160 (100 is an average month), when ACs fail in the heat, and drop to 62 in November. A replacement planned for the off-season gets a contractor with time to spare. The County's HVAC market is concentrated: the five busiest firms hold 35.9% of permits, while 257 firms filed exactly one. Among the 97 firms with 10 or more permits, 19 finaled under 70% of theirs, so ask any installer how they close out the permit.
See every Sacramento County HVAC contractor by share finaled →
Related
The full hiring checklist is in hiring an HVAC contractor in Sacramento County, and the CSLB steps in the Sacramento County contractor license lookup. Older permits on your address: Sacramento County building permit search. Local prices by trade are in Sacramento County home improvement costs and national ones in HVAC replacement cost; other places' rules in do I need a permit for HVAC replacement. Counts by year are on the Sacramento County permit statistics page.
What this does not tell you
Our file covers permits the County issued in unincorporated areas; work done without a permit, and permits issued by the incorporated cities, are not in it. A final means the inspector passed the work, not that the price was fair. The fee you pay is set in Accela at the time you apply.
How we know this
Permit rules, the list of permits issued online, inspection codes and scheduling are quoted from Sacramento County Building Permits & Inspection Division pages and its AP-16 form, read 23 October 2026; the technology fee from the County's 2025 notice. Counts are Sacramento County permits on homes in unincorporated areas classified as HVAC, October 2023 to September 2026; "finaled" uses permits a year or more old, and days are issue to final.
Numbers come from Sacramento County building permits on single-family, duplex and townhouse homes in the unincorporated county (the County's Accela permit layer), data through October 18, 2026. Nobody paid to be on this page and nobody can.
Questions
- Do I need a permit to replace an AC or furnace in Sacramento County?
Yes. The County's FAQ lists 'Heating and Cooling System' among projects that need a permit, and 'Residential heating and cooling (new install or replacement)' among the permits it issues automatically online once you pay. Homes inside an incorporated city such as Elk Grove or Citrus Heights get the permit from that city instead.
- How long does an HVAC permit take in Sacramento County?
Issuing it is same-day: the County issues residential heating and cooling permits automatically when the fee is paid in Accela. Closing it takes longer. The usual County HVAC permit in our file reached final 56 days after issue, and 84.1% of permits a year or more old were finaled.
- How much is an HVAC permit in Sacramento County?
The County's building pages do not publish a per-permit HVAC fee; the amount appears on the Accela invoice. On top of the permit fee the County charges a technology fee, 4.5% in its 2025 notice, with a proposed rise to 6.5% capped at $850. The usual HVAC job itself was filed at $15,268.
- Can a homeowner pull an HVAC permit in Sacramento County?
Yes, as an owner-builder, but the County will not issue it until you read, initial and sign its AP-16 owner-builder notice, which makes you the responsible party and warns about hiring unlicensed workers. If you are hiring a company, it should pull the permit under its CSLB C-20 license.
- What inspections does a Sacramento County HVAC permit need?
The County's mechanical inspection codes include 460 HVAC Ducts, 461 HVAC Equipment, 465 Gas Vents/Flues, 467 Condensate Drains and 499 Final Mechanical. Schedule online, by phone on 916-875-5296 or by text to 855-280-5383, before 5 p.m. for the next day.
Build your own list
Every firm with that kind of permit on record. Pick what you value. The list moves.
Related guides
- Do I need a permit to replace my furnace or AC? The rule in 14 cities, and how many get filed
- Ames building permit search: how to look up permits on an address
- Do I need an HVAC permit in Ames? Yes: what is exempt, homeowner permits, the $56.23 base fee and inspections
- Do I need an HVAC permit in Anaheim? The mechanical permit for a furnace or AC change-out, fees and inspections
- Do I need an HVAC permit in Wheaton, IL? What the City asks for a furnace or AC, and why half stay open
For one city
- Hiring an HVAC contractor in Sacramento County: the CSLB C-20 license, the permit, and what 7,900 HVAC permits show
- Sacramento County building permit search: Accela Citizen Access and records requests
- Sacramento County contractor license lookup: CSLB, the County permit portal, and what the permits show
- Frequently Asked Questions — Sacramento County Building Permits & Inspection (accessed 2026-10-23)
- Scheduling Inspections (inspection codes) — Sacramento County (accessed 2026-10-23)
- AP-16 Notice to Property Owner as Owner Builder — Sacramento County (accessed 2026-10-23)
- Technology Fee Notice 2025 — Sacramento County (accessed 2026-10-23)
- Accela Citizen Access — Sacramento County (2026-10-23)
- CSLB Licensing Classifications (2026-10-22)
- Check a License — CSLB (2026-10-22)