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Electricians in Prescott » HVAC and Electrical Services in Flagstaff, AZ » Furnace and Heater Repair in Flagstaff, AZ

Furnace and Heater Repair in Flagstaff, AZ

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When you need an ALLY for Heating & Furnace Repair

Cold Flagstaff winters require dependable heat. Allied Electric, Heating, and Air delivers prompt, trustworthy furnace and heater repair for homeowners across Northern Arizona. Our furnace technicians are certified, experienced, and trained to fix every major brand and system.

Allied Electric, Heating & Air Technician at door with customer
Daniel Ruiz
3 months ago
Lisa Becker
4 months ago
Joel Machak
4 months ago
Everything went well and the Allied team finished right on time. My new panel and system looks and works great.
Megan Asbury
4 months ago
I had 3 technicians come out for 3 of my homes and each one was fantastic. So professional and explained everything thoroughly. Allied will be my go to company for any electrical issues. Thank you to Wes, Gabe , and Brad for going above and beyond. Also a shout out to Stephanie who has always been happy to help when I call to schedule service.
Margaret Lamon
4 months ago
12/16/2025
Brandon returned twice first to install a front door security camera and then again to install an SD card in the device to detect movement and photo. I was very pleased to see that the upgrade worked for a delivery right after he had completed the upgrade. Not only is Brandon competent, but he also is an amiable tech who has the patience to research solutions.
MarLam

08/20/2025
Brandon returned today to solve the problem as to why the mountain time setting for AZ (which does not use daylight saving time in most of our state) was not activating the yard and driveway lighting at dusk. Instead the lights were not activating until after they had been in total darkness until 8:10 pm. The problem seems to be that the transformer does not use a photocell to determine the time. Therefore, since installing a photocell would entail a $500 charge, we decided resetting the timer for CA time was advisable to try first. Hopefully, the timer will not become problematic again when CA returns to standard time.
Before departing and without my requesting, Brandon reinstalled a deck board that had come off in a wind storm. What a generous action! What a thoughtful electrician! Brandon is a keeper.

08/12/2025
Brandon and Charles are both amiable and efficient and they completed the ordering and installation of replacement bulbs for multiple yard lights as well as the supergluing repair of a damaged light, and so now I again have a well lit path around my house. Thank you so much!

06/20/2025
Frank very efficiently installed the new GFCs with the Snap night light outlet covers that I wanted, but he discovered that one of the Snap outlet covers that was needed had been damaged, and so he not only used a different outlet with a lighted cover, but he also helped me order a new one. I very much appreciate how competent, patient and amiable Frank is, and look forward to his return after the new cover arrives

01/20/2024
Brandon and James competently installed the new numerical mailbox lights that had been customly ordered and required electrical rewiring for low voltage. Also, they neatly restored the wearhered stucco surface. Now, thanks to their expertise the maillox looks completely new axd is more efficient.

July 27, 2023
Brad & Nick reviewed the new lighting photos taken at dark and adjusted the lights to curb the glare for pedestrians & drivers based on the difference of elevation coming up the long drive. Should that not solve the safety concern, Brad will draw up a third light location that works between the pillars.

July 25, 2023
Nick worked so well with Brad by reinstalling the breaker panel with new breakers while Brad revised the older outdoor security systems with a modern new system for the safety of pedestrians and vehicles during darkness and/or weather challenges. A first class job with a competent and amiable team.
BOB SIGLOCK
4 months ago
We have used Allied Electric for several times and Allied has exceeded expectations
Mary Ann Winslow
4 months ago
Shane and James were very professional, courteous and informed us as to what they would be doing and the time frame in which it would be completed. After the job was completed they explained some of the procedures and also some of the unusual circumstances they encountered. Overall we are very pleased with the work done from the initial meeting to the finished product. I would highly recommend Allied Electric to anyone needing electrical service of any kind.
Dennis Ambruso
4 months ago
Expert service! They explained everything to our satisfaction and were very informative. I highly recommend them. We had to ditch the Nest thermostat which was a POS and changed the temperature by itself to very low at night which was the last straw. We now have a thermostat from Amazon installed by this company who did a very professional job.
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Joseph Montedonico
4 months ago
Lourdes E Lewis
4 months ago
Heating and AC restoration!! Great services, very professional, friendly. Well done job. Thanks Trevor and James highly recommend

Why Choose Allied for Flagstaff Furnace Repair

We’re a local team that understands what Flagstaff homes face each winter. Our technicians arrive on time, find the problem fast, and complete repairs that last. You’ll always get straightforward pricing before work begins. For no-heat emergencies, we’re available 24/7 to restore warmth as soon as possible.

Our reputation is built on reliable service, honest communication, and lasting results.

Heating Systems We Repair

Common Problems We Fix

Signs You Need Furnace Repair

Don’t wait until your home gets too cold. Contact us if you notice:

  • Some rooms feel warm while others stay cold
  • Loud noises from your furnace
  • A sudden spike in your heating bill
  • The system turns on and off repeatedly
  • Burning or musty smells from vents

Early repairs prevent larger problems and help your system run more efficiently.

Furnace Repair FAQ's

Most repairs are completed in one visit, usually within one to two hours. The exact time depends on the part that failed and the furnace model.

If your system is over 10 years old, needs frequent repairs, or struggles to heat your home evenly, replacement may be the better option. We provide honest recommendations after inspection.

Yes. Our technicians are trained to work on all major furnace and heater brands, including Lennox, Trane, Carrier, Goodman, and Rheem.

Once per year is ideal. Preferably in early fall before the heating season begins. Regular furnace maintenance helps prevent breakdowns and improves efficiency.

Noises like banging, squealing, or rattling can signal loose parts, a failing motor, or airflow issues. A technician should inspect it immediately to prevent further damage.