Because every heating issue is different, we begin with a diagnostic visit to accurately identify the fault. Afterward, we provide a clear, upfront, flat-rate price for the repair, and you approve the work before we start so there are no surprises.
Furnace Not Working?
Top-Rated Furnace Repair Service in Phoenix, AZ
No heat, weak airflow, or a safety shutdown? Our Phoenix team responds quickly, provides accurate diagnostics with honest pricing, and restores safe, reliable heat. Fully licensed and insured. Call Now for Immediate Service: +1 (480) 427-5588
Your Trusted Local Experts for Furnace Repair in Phoenix
When your furnace stops heating, you need a qualified team that restores safe, reliable heat with care. AC by Sam LLC delivers expert service across the Phoenix area, providing homeowners and businesses with dependable solutions when temperatures drop. Our licensed and insured technicians work on all major furnace brands and take the time to diagnose issues accurately, checking critical components such as ignition systems, sensors, blowers, electrical connections, and overall safety performance. We provide clear, upfront pricing before any work begins, explain your options in plain language, and focus on repairs that improve reliability, efficiency, and long-term performance. Whether it’s a sudden shutdown, weak airflow, unusual noises, or uneven heating, we handle the problem with precision and respect for your home. Contact us to schedule service and get your heat restored quickly and professionally.
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Projects Completed
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Satisfaction Guaranteed
"We had Ac by Sam out on Saturday to give us an estimate on a new unit as our current unit was 30 years old. Sam was amazing and we felt no pressure. We were scheduled for Monday for them to come out and do the work. Sam and Edi arrived on time. They were both very professional and friendly and made the whole process very easy. We were very impressed. They were even out during a a rainy day to finish outside work. Total troopers! Work was completed and any and all questions we had were answered. New thermostat was explained, system use explained. They cleaned everything up and vacuumed any residual mess up to the point you would never know they were there. We have received messages since installation to make sure everything was to our satisfaction and asking if we had additional questions. We are very happy that we chose to go with ac by sam for this job. Would highly recommend them to anyone looking to have a new unit installed , repairs done or just unsure of who to select for their project."
Eliot A.
"Sam is amazing! I can't praise him enough. My AC was on the fritz and had a well-known company come out to analyze and quote me on a new unit. There quote was ridiculously high and the next day my AC just stopped working. At this point I decided to support a local company with a good reputation, I then reached out to Sam and he came out the same day! My compressor was shot and Sam gave me the option to replace it or get a brand-new unit. His quote came in at almost half of what I was quoted by the company the day prior. My house was 98 degrees, and I was suffering mild heat stroke symptoms. I had to send my special needs Son to my brothers because the temps in the house were unlivable. Sam re-arranged his schedule and was at my home the next day and replaced my unit and the house was cool in an hour! I HIGHLY recommend Sam to anyone needing a compassionate, highly knowledgeable and honest HVAC company. Thank you so much Sam for the FIVE STAR SERVICE!!!!"
Quillyn B.
"Our AC Unit stopped working the day before our 2 months trip. If it wasn’t for Sam showing up in the middle of the night, we don’t know who else would. Called 10 other 24-hour emergency services, and none wanted to. Not only that. He is a man of his word. He did the job for half the price of what anyone else would and is so precise and accurate with everything he touches. He took care of our condenser and made sure to test all other components of the unit and make sure we could sleep in peace while away from our home. I highly recommend him and will continue to pass his information on to our friends and family. Great job, Sam, and thank you for your quality work and for helping us in our worst times. We will absolutely continue to use your service!"
AJ K.
"I barely have time to leave reviews once my service is delivered and i'm sure most can relate to that. But i'm absolutely grateful for Sam. He showed up on time, was super honest and straightforward, and charged a fair price—way better than other quotes I got. It’s rare to find someone who tells the truth and doesn’t try to upsell. Highly recommend!"
Babatunde A.
"Sam and his colleague did an outstanding job installing our new unit. Despite having a very busy schedule, Sam made the effort to include us, which we truly appreciated. They were punctual, professional, and worked efficiently as a team. He explained everything clearly and made sure we were comfortable with how the system works before they left. The installation was seamless, and the quality of their work really shows. We will definitely be referring them to our family, friends, and neighbors. Highly recommend their services!"
Caleb E.
"I had a fantastic experience with Sam, the AC technician! He arrived right on time and got the job done quickly and efficiently. He was not only very professional but also super friendly and funny, which made the experience even better. Plus, he took the time to explain everything in great detail, so I felt completely informed. I highly recommend Sam for any AC needs!"
Damien J.Expert Furnace Diagnostics & Repair
Common Furnace Problems We Fix in Phoenix
From no heat to unusual sounds or odors, our technicians accurately diagnose gas and electric furnace issues and restore safe, reliable heat across the Phoenix area.
No Heat or Won’t Start
Common causes include a tripped switch, failed igniter, or limit control issue. We trace the fault and restore dependable heat.
Short Cycling (Starts then Stops)
Restricted airflow, sensor problems, or control faults can cause frequent on-off cycling. We correct the root issue to protect your system.
Blows Cold Air
Ignition or gas valve problems, a clogged filter, or a control board issue can leave vents cool. We diagnose and restore warm airflow.
Unusual Noises or Odors
Banging, grinding, or persistent burning smells point to mechanical or combustion issues. We locate the source and fix it safely.
Ignition, Pilot, or Flame Sensor Issues
Faulty igniters, pilot assemblies, or sensors can prevent burners from staying lit. We troubleshoot ignition components for reliable operation.
Weak Airflow or Uneven Heating
Dirty filters, blower issues, or duct restrictions reduce comfort from room to room. We restore proper airflow and balanced heat.
Servicing All Major Furnace Brands in Phoenix
Our technicians diagnose and repair gas and electric furnaces from all major manufacturers throughout Phoenix, including Trane, Carrier, Lennox, Goodman, Rheem, Bryant, Amana, American Standard, York, Ruud, and additional leading brands. We follow manufacturer-recommended procedures and perform safe, code-compliant repairs that restore reliable heat.
Some brands we frequently service:
Your Local Furnace Repair Team, Proudly Serving Phoenix
As a local HVAC company, we know how crucial a working furnace is during a cold snap. When your system struggles or shuts down, our licensed and insured technicians deliver detailed diagnostics, clear answers, and code-compliant repairs that restore safe, dependable heat. We serve the entire Phoenix area with prompt scheduling, straightforward communication, and service focused on getting your home warm again without the hassle.
Reliable Heating Service Across the Phoenix Metro Including:
- Phoenix & Downtown neighborhoods
- Scottsdale & Tempe
- Mesa & Chandler
- Glendale, Peoria, & Sun City
- and everywhere else in the Phoenix Metro Area
Frequently Asked Questions
Your Questions About Furnace Repair in Phoenix, Answered
Contact Us
How much does a furnace repair cost in Phoenix?
How quickly can you come out if I have no heat?
We prioritize all no-heat calls and offer prompt scheduling, often with same-day appointments available. For urgent situations, call us directly, and we will provide the first available arrival window to get your heat back on.
Do you repair my furnace brand?
Yes. We service all major makes and models of furnaces, including Trane, Carrier, Lennox, Goodman, Rheem, Bryant, and others. If you're unsure of your model, just let us know the brand, and we'll confirm.
Will I get an estimate before repairs begin?
Absolutely. After our diagnostic, we explain the issue clearly, outline the recommended fix, and provide a straightforward, flat-rate price. Work only proceeds with your full approval.
What problems do you most often fix on furnaces?
Common issues include failed igniters, dirty or faulty flame sensors, blower motor problems, clogged filters causing limit trips, short-cycling, and uneven heating. We troubleshoot the root cause and correct it safely and efficiently.
Should I repair or replace my furnace?
If your unit is older and facing repeated breakdowns or a major issue like a cracked heat exchanger, replacement is often the better long-term value. For newer systems with minor issues, a targeted repair can effectively extend its service life. We’ll present honest options so you can decide what makes sense for your home and budget.
How do I schedule furnace service?
Call (480) 427-5588 or use the contact form on our website to request an appointment. We’ll confirm a convenient time and let you know of any simple steps to take before our technician arrives.