Custom Furniture in Idaho & Beyond

Mahogany House Woodworks

James & Jamilyn Barrett run Gem Heating & Air Conditioning full time, as well as their custom woodworking business known as Mahogany House Woodworks. James brings over 20+ years of professional woodworking experience including furniture design, custom wood cutting boards, custom dining tables and everything in-between. 

Along with designing and building custom quality furniture for customers, we also offer wood countertop design & installation. We’ve installed dozens of wood butcher block/countertops in the Treasure Valley for residential customers who are looking for a modern upgrade in their kitchen. 

Just like their HVAC company, James & Jamilyn put customer service and care first as their focus on running an integrity-based business. 

Customers Trust Us

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Jason Argo profile picture
Jason Argo
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We had initially gone with our original HVAC contractor who had installed the system 9 years prior. A couple of weeks ago, they came out and fixed an AC issue and supposedly did their maintenance service on our furnace. They installed a new capacitor on the AC but said the burned out capacitor had created some other issues and the AC would not work for long. They wanted to sell us a whole new unit. A week later, the gas furnace wouldn’t kick on. We called out Gem Heating and they came out within 24 hours. They said our AC was fine and no damage was done by the burned out capacitor. They also fixed the furnace by blowing it out with a compressor. They said that should have been done as part of the routine maintenance for which we paid our prior contractor. We since learned that our prior contractor had been bought by a private equity firm. We were very happy with their installation 9 years ago, but not so much this time around. We would highly recommend Gem Heating, but recommend staying away from Ultimate.
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Erin Moser profile picture
Erin Moser
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10/10! Gem is a local HVAC company with honest business practices. Gem Heating stood out from the start. I talked to the owner, James, to schedule a diagnostic visit for our aging A/C that was acting up. He came the same day, and was friendly, knowledgeable, and thorough. I didn't expect him to be willing to work with our old A/C unit, but he gave us multiple solutions that covered a range of costs. James did a great job educating my husband about our system, and explaining what was going on and how each solution would work. Once we made our decision, he had our A/C up and running within an hour. Gem Heating stands out as an HVAC company that is personable, thorough, and trustworthy. Highly recommend!!
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Krista Lauinger profile picture
Krista Lauinger
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James came out very quickly for an urgent AC matter in hot summer weather. We so appreciate his professionalism and conversation about our system. He was willing to talk us through his estimate and hear our thoughts and concerns. He ended up going above and beyond. We highly recommend Gem Heating! And we love that they are truly locally owned and ran, not some big corporation that pretends to be local.
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Andrew Campbell profile picture
Andrew Campbell
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Great HVAC company! Got my nampa house AC up and running in no time. Thanks James.
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Katherine Miller profile picture
Katherine Miller
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James did a great job. He was out at our house within 2 hours of my calling in for services. Not ont did he fully explain what was wrong with our unit but showed me all the system test results. He was very professional and respectful. I would not hesitate to recommend his services to others who need good HVAC services!!
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Jarrod Tarkenton profile picture
Jarrod Tarkenton
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We recently had an issue with our A/C Cooling Properly. I contacted Gem State Heating and Air Conditioning to schedule an appointment. James visited our residence and immedietely identified the issue that was causing our A/C unit to improperly cool down. Within a short time we were able to cool down our home; which is critical during the summer months. I highly recommend Gem Heating and Air Conditioning for HVAC Services.
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Doug Helton profile picture
Doug Helton
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James came and diagnosed our water heater issue and had us fixed up in a day. Customer service and communication was above and beyond. Pricing was fair but the personal small business touch was worth every penny. He even painted and primed the wall behind the water heater which wasn’t even in the original bid. If you need anything to do with heating and air, plumbing, etc. these are the guys to call! They’re the only ones allowed to touch our mechanical now!
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DB profile picture
DB
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These guys are personable and humble. They do exactly what they say they will do, and will not screw you over like the other HVAC companies in the valley. Other companies just want to sell you new units even though all you might need are repairs. Not this team. This team will take care of you and I trust them wholeheartedly. If I did HVAC, I'd proudly work for someone like James. 🔥
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Francisco Sanchez profile picture
Francisco Sanchez
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My mini split decided it wasn’t going to blow anymore cold air due to a leak. Called Gem and they came out the same day to get me hooked up. He quickly found the issue and took care of it. Now it’s blowing nice and cold. Highly recommend Gem Heating & Air for their professional and fast service.
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Adriana Maniere profile picture
Adriana Maniere
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James was everything you want in home maintenance and repair. Kind, thorough, great communicator, and got the job done in one visit! We’re happy to be continuing our business with Gem!