What does getPermit actually do?

getPermit reads your job details and tells you what a California city expects before you file: which permits the work triggers, the documents and plans you'll need, the fees to budget for, and the common reasons applications in that jurisdiction get bounced back. It produces a clear checklist you can act on. It does not submit to the city for you — you (or your permit person) stay in control of what gets filed.

Is there a human involved, or is it just AI?

Both. The AI does the research and drafts the assessment and checklist; an experienced permit coordinator reviews and approves it before it's treated as authoritative. The human check is the point — it's how we keep it trustworthy in a process where a wrong filing has real consequences.

Which cities do you cover?

We're starting deep in California rather than shallow everywhere. For a city we haven't fully mapped yet, we'll give you accurate general California guidance and point you to that city's official building department — and you can join the waitlist to be notified when we cover it in depth. We will not invent city-specific fees or timelines we haven't verified.

Solo electricians, plumbers, and HVAC contractors, and small general contractors who don't have a dedicated permit department and lose billable hours to permit admin.

How much does it cost?

It's pre-launch. Join the waitlist and you'll get founder pricing, your jurisdiction prioritized, and a direct line to the team. No spam, no credit card.

We're onboarding a first set of California contractors. Join the waitlist with your city and trade so we can prioritize the jurisdictions our early users actually work in.

Furnace replacement permits in Texas

Last updated September 13, 2026

Early Texas guides. getPermit is California-first — these pages share what we've verified in Texas so far, and they don't mean getPermit covers Texas yet. Join the waitlist with your city to tell us where to go deeper.

A plain-English starting point for HVAC contractors. This is general Texas guidance — fees, forms, and timelines are set by each city.

Short answer

Replacing a furnace generally needs a mechanical permit in Texas cities — Fort Worth and Plano list furnace replacement as permitted work — and gas furnaces add a gas safety step: Dallas requires a pressure test witnessed by a City inspector before gas service is released. The work is done by a TDLR-licensed ACR contractor; gas piping itself is plumbing work under Texas law.

The general picture

Furnace work in Texas sits between two state licenses — ACR for the appliance and plumbing for the gas piping — and each city's mechanical and fuel gas codes. In Dallas, Fort Worth, and Plano, replacing a furnace is permitted work, and a gas unit can't go back into service until the city approves the gas piping: Dallas requires a pressure test witnessed by a City inspector before Atmos Energy restores service. See the verified notes for Dallas, Fort Worth, and Plano.

Typically needs a permit

Installing or replacing a furnace, changing its venting or gas connection, and relocating equipment. Plano's permit handout lists installing or replacing a furnace as work that needs a permit.

Usually doesn't (general norm)

Minor repairs that don't alter the equipment's listing, such as replacing an igniter or blower motor
Filter changes and routine maintenance

Documents & plans generally required

Mechanical permit application, with gas scope if piping changes
TDLR ACR license number and city contractor registration
Equipment cut sheets with the input rating
Venting and combustion-air details for gas units
Gas piping details if the input increases or piping is altered

Common reasons furnace replacement applications get bounced

Code-rooted patterns across Texas — not a city-specific rejection rate.

Gas piping altered without plumbing permit scope
Venting or combustion air inadequate for the new unit
Gas service restored before the city's gas test and approval
Clearances to combustibles or service access not met per the manufacturer's instructions
Contractor not registered with the city

The inspection sequence

A typical order — the number of stops and exact sequence vary by jurisdiction and scope.

1Gas piping test when piping is added or altered — in Dallas, witnessed by a City inspector
2Final inspection with the furnace installed, vented, and operating
3City approval before the gas utility restores service

Licensing — who can pull it

Furnace replacements in Texas are done by a TDLR-licensed air conditioning and refrigeration (ACR) contractor. Gas piping counts as plumbing under Texas law, so piping changes involve a licensed plumber — and a plumber still needs an ACR license to do ACR work.

How this works in your Texas city

Cities marked have verified local data — portal, fee schedule, adopted code edition, and local permit notes sourced from public city and county documents. Every city page links to its official building department.

Dallas Fort Worth Arlington Plano

Frequently asked questions

Do I need a permit to replace a furnace in Texas?

Generally yes. Fort Worth and Plano list furnace replacement as permitted work, and Dallas requires a witnessed gas test before gas service is released. Confirm with the city where the job is.

Who tests the gas line after a furnace swap?

The city. In Dallas, a City plumbing inspector witnesses a pressure test of the gas piping before Atmos Energy restores service.

Who can replace a furnace in Texas?

A TDLR-licensed ACR contractor for the appliance; gas piping work is plumbing and involves a licensed plumber.

Other common jobs

AC changeout Battery storage EV charger install All jobs All Texas guides

Want getPermit to map your city in depth?

Join the waitlist with your city and trade. We prioritize the jurisdictions our early users actually work in — and we'll never invent fees or timelines we haven't verified.

Join the waitlist