Rated 4.94 / 5 from 33 reviews
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Diamond Heating & AirTemp Alaska Founded in 1995, Diamond Heating has grown from a small company with just three employees to become the largest installer of residential heating and cooling systems in Alaska. We've earned accolades for our services and dedication to quality, including the prestigious Subcontractor of the Year award from the Anchorage Home Builders Association, but our true measure of success is in our customer satisfaction ratings.

After all, if our customers aren't completely satisfied, we're not doing our jobs. To ensure that we're better able to do just that, we partnered with AirTemp Alaska, a leading air conditioning company founded in 1992.
Business details
  • Year established: 1996
Services
Indoor Air Quality
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With today's tightly sealed, well insulated homes, the air inside your home can be 2-5 times more polluted than the air outside. Choose Diamond Heating Comfort Systems Inc for services and products to improve your Indoor Air Quality.
Maintenance
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Your home is typically the single largest investment you will ever make and your home heating system represents a large part of the value of that investment. With regular maintenance you will prevent small problems from becoming big problems and ensure optimal performance of your comfort system. We also offer annual comfort agreements, which can reduce the cost of a Performance Tune-Up.
Repair
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As licensed service professionals in the field of heating and air-conditioning, we have the tools, the equipment, and the experience to keep your equipment running smoothly all year long. If it is emergency service that you need, we are available to assist you, 24 hours a day, 7 days a week.
New Install
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Your home comfort system is most likely the single biggest use of energy in your home. In fact, over a third of the energy used in the United States is used to heat and cool buildings. Having a properly designed and installed heating and air conditioning system will have the biggest impact on your energy costs.
Upgrade or Replacement
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Your home comfort system is most likely the single biggest use of energy in your home. In fact, over a third of the energy used in the United States is used to heat and cool buildings. Having a properly designed and installed heating and air conditioning system will have the biggest impact on your energy costs.
Reviews (33)
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K. Hill
May 27, 2022
Andrew and Pricer were great! Professional, informative, and left us with a well-installed heater and walk-through we are happy with. Thanks to Joe for the quote and options. We will continue to use Diamond!
Ben Anderson
Apr 27, 2022
They sell a Honeywell home t6 pro as their smart thermostat at a price of $450. It's $118.99 on Amazon. Response: -yes, the technician installed a new thermostat because my house was 45°F during the winter in Alaska. He told me my current thermostat didn't work, so I didn't really have many options other than to buy something right away. So no kidding I felt buyer's remorse. -if what you're saying is true, then you charge $330 for a service that took 30 minutes tops, which Google states should cost less than $60. Capitalism is sweet, but not when you get exposed to the public trying to take advantage of the community you claim to be helping.
Tammy Bruce
Apr 14, 2022
I left a voicemail message and email Sunday evening and someone called me back the next morning. I was fit in for repair service the same day. I wasn't solicited with any extras, just the service and repair. The company is fair and does quality work Service:Heating system repair
Lico Contreras
Apr 13, 2022
I'll start off by saying I usually never write reviews. I would be remissed if I did not give kudos where they are due. The crew that came to install a new gas line for my gas stove were extremely personable and professional! They took the time to answer all my questions and even walk me through the various steps! They went up and beyond and I will be recommending their services to anyone and everyone who needs their assistance.
Tana Skye Nevada
Feb 24, 2022
The technician Tom was friendly and helpful, explained some of the systems to me as this is my first time as a homeowner. He pointed out some things to be mindful of in the future, too. Great service service and friendly people! Services:Heating system maintenance, Thermostat repair
Laurie DeSoto
Feb 20, 2022
Very high quality and professional service! Shoutout to the technician Tom! He was very helpful to repair our boiler system and informative! Will call Diamond Heating & AirTemp for my heating needs again! Service:Heating system repair
Shane Mecham
Feb 15, 2022
They have been great to work with, very profession. Did a tankless water heater install last year. We had a small leak show up and they were here that day and fixed it. Maintenance with them have been great as well. Communication has been wonderful. Thank you! Service:HVAC system maintenance
Michael Graham
Feb 14, 2022
We've had them doing an annual check up and servicing of our home heating now for a number of years. They're always on time, professional, friendly, and have done a great job. When we've needed repairs in the past, it's been clear that they know what they're doing. I trust them which is why I continue to give them my business. Service:Heating system maintenance
Amy George
Jan 07, 2022
Dimond Heating came out to check on my boiler the same day I called, while I had COVID. The technician said he didn't want my family to be without heat even though I was sick and had to isolate from him on the second floor of the house. He was very thorough, respectful and professional and fixed my problem within an hour. Clear billing practices and very trustworthy. I was so stressed out being sick and having a problem with my heat in the middle of winter. I will always call them first in the future.
Mary Beth Sampson
Nov 28, 2021
The entire process from scheduling estimate-to getting the estimate- securing financing- and the actual installation was actually pretty amazing- everyone I dealt with was extremely polite and professional. By far and away the nicest group of people I have ever dealt with during my time as a homeowner here in Anchorage- My old furnace was 45 years and ready for retirement- and the estimator/Joe took his time and answered all of my questions- which was refreshing and greatly appreciated! CeCe in the office is a complete gem- she is a dynamo and a real credit to Diamond Heating- they have someone really incredible working for them!

The installers were early to arrive- upbeat and very friendly- and the removal and install was over and done in 3 hours! They took the time and showed me how to program the thermostat and they answered all the questions I had regarding my new Trane furnace! Best experience EVER! Would I use them again and would I recommend them? YESSSS!
Anne Hamilton
Feb 02, 2020
Tyler did an amazing job! He was on time, polite and answered all my questions. I really appreciate his kindness and friendly way of communicating. He is an excellent representative of Diamond Heating. I will always call Diamond Heating...thank you!!
Nicole Stuemke
Feb 01, 2020
My first encounter was with Keith and he was phenomenal. He walked me through trouble shooting some things over the phone to avoid having an after hours service, which I very much appreciated. He did finally end up coming out and the interaction was great. My next interaction was with Joe and he was also great. He has responded quickly to my questions and provided quotes.

I have been been pricing and comparing with other companies and so far I am very please with my experience. I have one quote from another company with comparable product quality and warranties but lower cost and hope to make my decision shortly on which company to go with.
Serafine Bourne
Jan 27, 2020
Fast and courteous service! Tom was quite helpful, he diagnosed our heater issue and fixed it so fast! Will definitely request Tom if we have any issues again!
Veldee Hall
Dec 09, 2019
Wonderful 24 hours service and staff are quick to respond. Good install scheduling, team are friendly and easy to work with. Good company to work with when installing boilers.
Marlan Schoenleben
Dec 06, 2019
I am really impressed with this company. From the receptionist making all arrangements clear and no delays. I needed an inspection done on our boiler system and my daughters forced air furnace. Tom came out and was very professional, Explained what he did and completed both jobs in a timely manner. He was considerate of our houses and did not leave a mess.

He never came across as a 'know it all' but shared concerns with us. He did not push us into a sales pitch nor did he degrade our systems. My daughter needs a new furnace. Tom contacted his office for us to get a quote. Office called the same day. Arrangements are already made to have a sales person come over to help my daughter in what options she has. A safe, comfortable and a job well done experience.
Cody Lawhorn
Oct 25, 2019
AirTemp Alaska was quick to rectify the scheduling error. Their technician seemed knowledgeable and was able to identify things wrong with our HVAC unit that other technicians couldn't. Looking forward to receiving their full quote to repair our HVAC, that I hope is heading my way today.
Sandra Cox
Oct 20, 2019
Awesome customer service from beginning to end very happy
Tim Rittal
Jul 08, 2019
Tom from Diamond came by this morning for our annual check-up. Prompt, polite and friendly. As with all our dealing with Diamond heating he was very professional. We have had nothing but great service from Diamond and when I was still selling real estate I referred many of my clients to them with excellent results.
Jerry Ann Green
May 13, 2019
Mike did our thermostat he was knowledgeable and very friendly.
SueAnn J.
Mar 27, 2019
Their service was exceptional. My new water heater stopped working during a time when Plumbing and Heating companies were busy with fall winter heating issues. All companies I called were not available for 1 to 2 weeks. Being without hot water was challenging enough. It was suggested by Bruce Roberts Company that I call Diamond Heating. Diamond Heating/Air Temp worked my issue into their schedule the day, I called.

The water heater was under warranty and the main heating element needed replacement. No parts were available in Alaska.They worked with me and the Rheem Company to resolve the issue. It took several days due to shipping from the lower 48. Diamond/Air Temp and Rheem exceeded my expectations. If needed, they will be my first call. Kudos to this company and Rheem for outstanding Customer Service.
Caryn Faignant
Mar 09, 2018
We really like Tom. He came out in under an hour to fix our furnace. He was professional, pleasant, and seemed to know what he was doing. He diagnosed the problem, had the part that we needed to fix it with him, and had it installed quickly. We would definitely use him again but hope we don’t need to!
Brian Harten
Mar 06, 2018
Very responsive, highly qualified and excellent workmanship. Everything one should expect from a top-shelf plumbing/mechanical company. Got our furnace back up and running very quickly and performed some preventative maintenance at the same time. Would highly recommend.
Janna Hardy
Feb 16, 2018
I just want to say that the dedication, commitment, and customer service that Joe Dudley brings to Diamond Heating/Air Temp Alaska is outstanding. He understands the products thoroughly, and is able to convey how things work, and what needs to be done to make repairs in terms that are easy for anyone to understand. Keep up the good work Joe, and Diamond Heating!
Geri Cannon
Feb 09, 2018
Dana & all their staff have been excellent. We have had them repair & maintain our furnaces & the one in the garage, our rentals & installed a lovely new gas fireplace in our family room. I highly recommend them.
Amie Goetsch
Feb 09, 2018
We have used Diamond Heating to fix a furnace at our daughter's house and they were awesome! Showed up when they said they would, and got her heat running on a weekend. The employees are very helpful and the company overall is trustworthy. Highly recommend them.
Jared Hansen
Feb 08, 2018
Happy to have Diamond heating as my go to heat system reappear. Joe is outstanding with his professionalism, integrity and service. I recommend Diamond heating every chance I get.
Kim Bell-Fifer
Feb 08, 2018
I would highly recommend Diamond Heating/AirTemp Alaska. A tech was out and had our heat back on within a few hours. Greatly appreciate the fast, friendly and efficient service provided by your company. Will definitely use you in the future!
Kathy Brown
Nov 27, 2017
Wasn’t sure if i should call for my furnace and actually called a company I’ve used before . Opted to cancel and called Diamond Heating. Had quite a wait but only because the tech was working on another job. Jim came and fixed the issue and was very kind and explained it to me. Thank you. We will use you again
David Cheverie
Oct 15, 2017
Had a great experience dealing with Joe and Herman. Both were very professional Joe had all the tools to give me a estimate for a new furnace along with various options etc. and was able to print it out on site. Herman showed up and installed the new furnace with all the options that I wanted. Herman had all the tools and knowledge and skill to get the job completed in one day.
John Sarvis
Nov 13, 2016
In 2009, your company installed a 95% efficient new gas furnace and on-demand gas water heater at our residence. Your technicians did an excellent, prompt and professional installation. The system continues to work perfectly with no problems.
The Manzers
Jul 08, 2016
Craig Chenery's (Comfort Consultant) knowledge & professionalism led us to go with Trane & Diamond Heating. Despite 2 other bids, one of which was lower, for a new furnace. We went back to Diamond Heating, because of Craig, to purchase and have installed two Panasonic Fan/Light units a year after our furnace purchase. We give Craig our highest recommendation.
Nate Anderson
May 27, 2016
Our contractor was excellent. He took time to show us how to operate everything as well as maintain filters and take care of our investment. I was pleased with his promptness and his knowledge.
Steve Skrocki
May 09, 2016
Diamond Heating was recommended by two different people - I was not disappointed in their work or their product.