If you searched furnace replacement near me from a cold house in Brentwood, here is the short path. Gas furnace replacement costs $4,500 to $7,500. A technician comes to the house, looks at the furnace and the ducts, and writes the quote before any work starts. When you are ready, request the replacement visit and tell us where the furnace sits.
What the replacement price covers
The $4,500 to $7,500 figure is for a gas furnace replacement. Where you land inside it depends on furnace size, efficiency, where the unit is installed, the venting, and the condition of the duct system it connects to.
Location matters in Brentwood. Furnaces here sit in attics, hallway closets and garage corners, and getting a new one in and the old one out costs different crew time depending on the route. The technician sees it at the visit and prices it, so the number on paper is for your house.
If you are also weighing a heat pump, a complete ducted heat pump installation in a typical Brentwood Westside home runs $8,000 to $14,000 depending on system size, ductwork condition, and electrical panel capacity. We can quote both on one page.
Furnace or repair
You may not need a new furnace. A hot surface igniter or control board runs $219 to $530 installed, and a blower motor $420 to $1,600 depending on whether the unit uses an ECM. Our heating repair team can look at the fault first. If the repair is small, fix it. If the quote for parts is large and the unit is worn, the replacement price sits right beside it and you choose.
If you smell gas, leave the house first, then call SoCalGas or 911 from outside.
What the visit covers
The visit is where the price is set. The technician:
- Looks at the furnace, the venting and the gas connection.
- Runs a room-by-room load calculation so the new furnace is sized for the house today, not for the old nameplate.
- Checks the supply and return ducts the furnace feeds.
- Notes the access route for the install crew.
You get the written replacement quote before any work begins. Equipment, labor, venting, permit and any duct work appear as separate lines.
Reading the replacement quote
Compare quotes line by line. The furnace line names the make, model, size and efficiency. The venting line says what changes at the flue. The duct line says whether the supply and return runs are left alone, sealed or modified. The permit line is separate. When every one of those is on paper, you can set our quote beside any other and see what each number buys. If you want the heat pump priced on the same page, say so on the form and it is added as a second option.
Permit and duct testing
Replacing a furnace in California is permitted work. In Brentwood the permit comes from LADBS, the Los Angeles Department of Building and Safety, and we handle the paperwork when the project needs it. Depending on the scope, Title 24 Part 6 can require duct sealing and a duct leakage test, verified by a third-party HERS rater who is not the installer. If the ducts need that work, our ductwork services team prices it with the furnace so you have one quote.
Natural gas service is SoCalGas, so the new furnace connects to the line already in the house. California law requires carbon monoxide alarms in homes with a fuel-burning appliance, so we check that yours are in place when the new furnace goes in.
Install day
The crew removes the old furnace, sets the new one, connects the gas, venting, wiring and ducts, and tests the heat with you in the house. See our heating installation page for the furnace and heat pump options. Tell us at booking if the furnace is in a tight attic or a canyon-side garage, and we plan the access before the truck arrives.
After the install, the maintenance schedule is yours to choose. Most Brentwood heating maintenance appointments run 60 to 90 minutes and cost between $109 and $320 depending on furnace type and accessibility.
Service area
We install furnaces across Brentwood, including the canyon-adjacent streets, so the visit is local.
FAQ
How much does furnace replacement cost in Brentwood?
Gas furnace replacement costs $4,500 to $7,500. The final number depends on size, efficiency, location, venting and duct condition, and it is on paper before work starts.Can you replace a furnace with a heat pump instead?
Yes. A complete ducted heat pump installation runs $8,000 to $14,000 in a typical Brentwood Westside home. The visit checks the panel and the ducts, and we quote both options.Will the quote include the permit?
When the project needs one, the permit is its own line on the quote. LADBS issues it.My furnace stopped working. Do I have to replace it?
No. Parts like an igniter or control board run $219 to $530 installed. We look at the fault first and price repair and replacement side by side.Do I need to be home?
Someone should be there to let the crew in and see the new furnace run at the end.Call (877) 702-9609 to book furnace replacement in Brentwood with Brentwood Air and get the written quote in hand.
Need Professional HVAC Service?
Our HVAC-experienced technicians are ready to help with all your AC and heating needs. Contact Brentwood Air today for expert service throughout the Brentwood and the canyons around it service area.
