HVAC Installation & Repair in San Rafael & Marin

Fuse Service repairs and installs heating and cooling systems across Marin County, from San Rafael and Novato to Mill Valley, Tiburon and Sausalito. Free estimates on new systems. Service call is only $59, credited to the repair if you approve it. Open 7am–7pm.

Licensed HVAC contractor: HI-HVAC LLC dba Fuse Service, CSLB #1154975 (C-20). Our Richmond office, which serves Marin, is rated 4.9 on Google.

Call (925) 302-2429 Get a Quote

What’s in demand in Marin County

Based on our 2026 jobs in Marin County.

Heat pumps instead of a furnace

In San Anselmo we installed two ducted Daikin FIT heat pump systems (2-ton and 3-ton) with new air handlers. One house also needed new flex ductwork. Ducted heat pump systems start from $9,300.

Heat pump installation · Heat pump repair

Gas furnace repair and replacement

Recent heating calls here: a furnace repair in San Rafael, a draft safety device replaced in Larkspur, furnace and AC repairs in Tiburon. In Corte Madera we replaced a furnace with a 97% AFUE modulating condensing gas furnace and added zoning, so each zone runs on its own thermostat.

Furnace repair · Furnace installation

Boilers and radiant heat

Some Marin homes heat with hot water instead of air. We repair boilers and radiant systems. We don’t install air-to-water heat pumps.

Services and prices in Marin

Starting prices before discounts. The final price is set after the estimate.

Heating installation

Gas furnace from $6,000
Heat pump from $9,300
Heating installation →

Ductwork

Replacement from $3,400
Ductwork →

AC installation

Central AC from $8,200
AC installation →

Appliance repair

Refrigerators, ovens, stoves, dryers
Appliance repair →

Current offers and rebates →

Cities we serve in Marin

San Rafael, Novato, Mill Valley, Tiburon, Belvedere, Corte Madera, Larkspur, Greenbrae, Kentfield, Fairfax, San Anselmo, Sausalito.

Nearest office: Richmond, 173 Lakeshore Ct. Also serving: Richmond · Berkeley · All areas

Questions

Do you serve San Rafael and the rest of Marin County?

Yes. We serve San Rafael, Novato, Mill Valley, Tiburon, Belvedere, Corte Madera, Larkspur, Greenbrae, Kentfield, Fairfax, San Anselmo and Sausalito, every day from 7am to 7pm.

Is the permit included in the installation price?

No. The permit and city inspection are billed separately, from $250. That was the cost on a 2026 heat pump installation in San Anselmo.

Do you work on boilers and radiant heating?

We repair boilers and radiant systems. For a new heating system, we install gas furnaces, heat pumps and ductless mini splits. We don’t install air-to-water heat pumps.

How much is a service call in Marin?

$59 for HVAC and appliances. If you approve the repair, the $59 is credited to it.

Sheridan Grosjean

Alex arrived on time and set about immediately to work. He worked for over an hour to diagnose why my furnace would not run when I set the thermostat to "on," and could find no parts that were not working and/or needed to be replaced. He also stated that he saw no reason why the furnace would need to be replaced now, as I had been told by another company. He observed an area that was rusted, though dry. He suggested that I schedule him to come back in a week to inspect that spot again. Alex was precise about his findings and explained things clearly. I'm confident that all was well managed.

Claire Hamlin

Excellent response and service!!

Don Martin

The Fuse technicians were knowledgeable and quick. Excellent job.

Geoffrey Deetz

After being bombarded after requesting information from Yelp, I chose fuse because they contacted me first and were able to explain same-day service and a very small feed to look at the problem with my furnace the repair man Alexander that’s the English version of his name was quick, polite, professional, and helpful. Explain the problem the price, and after agreeing, he immediately fixed it checked everything checked for gas leaks. Check the fire detectors as well without asking to ensure that everything was working and Sayf I highly recommend them.

Robyn Selva

Fuse is my go to for anything Electrical. They installed a sub-panel for a swim spa as well as Electrical for fireplace inserts. As usual, they always go above and beyond and are super helpful and professional. We know that electrical work done by Fuse is going to be done right and safe. They’re wonderful to work with.

MR Manion

Great experience with FUSE, again. This time it was a mini spilt. Alex and his team moved fast, tackled multiple points of work concurrently. There’s no “here’s my assistant who’s learning” going on here. They were done in 5 hours and it was a big install! I fully expected this would be done in two days but they are masters at their craft. I wish FUSE did full home remodels!

Bill HAMLIN

Fuse did a great job for us from the initial assessment to our options to the installation. They handled permits, kept us well informed and their personnel were courteous and professional. We would heartily recommend their services.

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Heather B.

The tech who arrived seemed very knowledgable. We discussed a smart thermostat installation without a C Wire. I ran out of time to buy the smart thermostat and get the work done but will hire them when I return to the site.

Eric J.

Yuri did a great job installing/upgrading my wired Nest doorbell cam. Fast, friendly and he did an excellent job. I would strongly recommend FUSE to anyone.

tamani M.

I used them for my washer repair. The were in my budget. We had some minor communication issused in the beginning. Once i explained my issue they were on it to fix that and made this a positive review. I would definitely use again.

Michelle B.

Anna from Fuse contacted me right away after I requested service via Yelp project feature on a Friday evening. Aleksandr stopped by the next day on Saturday and safely removed a busted refrigerator light bulb that I didn't have tools for. Fast response and great service overall. Thanks Fuse!

Ankit B.

Great service and very responsive! I had my AC repaired within 24 hours of reaching out. Aleksandr was very knowledgeable, explained everything clearly, and worked efficiently to get everything running again. The entire process was smooth, professional, and hassle-free. I really appreciated the quick turnaround and excellent customer service. I highly recommend them for AC repair and maintenance!

tuan t.

Technician was helpful and patient. He made sure that everything was thoroughly inspected. My ac unit had ice buildup and he was unable to complete the diagnosis, so he came back the second day to complete the job without charging another fee.

Michael O.

The service technician did a great job working through the problem and coming up with the solution. The convection coil in my Gaggenau oven had burned out and needed replacement. In order to replace the coil was more complicated than anticipated. But with perseverance the problem was solved.

Marco V.

Second time fuse hvac all is good especially with eugene same technician from last appliance repair.

Jason L.

They were very prompt and easy to coordinate the schedule with. I would definitely use them again.

Marco P.

Great service. They responded quickly and fixed my oven in 30 minutes. Definitely recommend.

HVAC Service in San Rafael & Marin County