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Our Service Areas

Heating & Air Conditioning All Across the Treasure Valley.

Gem heating & Air Conditioning is located in Boise, Idaho and services residential and commercial customers all across Southern Idaho. We know Hyde Park has homes full of character and with lots of work done in them over the years, you need a skilled professional who knows how homes are put together. Up in Columbia Village, most of the homes are beginning to age and need maintenance to keep the heating and air conditioning systems lasting as long as possible. From Mountain Home to Caldwell and beyond, we are ready to serve all of your heating and cooling needs.

We Serve Customers in the Following Areas:

Providing Comfort to All Customers All Across Southern Idaho

Rest assured that we will come to you and take care of your heating and air conditioning systems for years to come.

Our customers rely on Gem Heating & Air Conditioning for all aspects of HVAC including diagnostics, ongoing service and replacement. As a Boise-based HVAC company, we understand the need to deliver exceptional care to all of our clients, on every visit. Regardless how big or small your heating & air conditioning issue is, our team will have have your back.

Our Core Services Include:

Furnace Repair, Service & Replacement

Regardless the age, make or model, Gem Heating & Air Conditioning can help diagnose, repair, service and replace any furnace for our customers.

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Air Conditioning Repair, Service & Replacement

From basic routine air conditioning services to complete overhaul and installation, our team can help keep your home cool and running as efficiently as ever.

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Water Heater Repair & Installation

We offer full water heater repair services, as well as new installation as well. We work with our customers on helping them choose the best water heater for their needs and energy efficiency goals.

Learn More >

Our Customers Come First

    
 
 
         
   Erin Moser 
 
 
 
  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!!
  
 
        
   Krista Lauinger 
 
 
 
  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.
  
 
        
   Andrew Campbell 
 
 
 
  Great HVAC company! Got my nampa house AC up and running in no time. Thanks James.
  
 
        
   Katherine Miller 
 
 
 
  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!!
  
 
        
   Jarrod Tarkenton 
 
 
 
  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.
  
 
        
   Doug Helton 
 
 
 
  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!
  
 
        
   DB 
 
 
 
  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. 🔥
  
 
        
   Francisco Sanchez 
 
 
 
  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.
  
 
        
   Adriana Maniere 
 
 
 
  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!
  
 
        
   Galverg Maelstrom 
 
 
 
  Very professional, got the AC up and running again within an hour, cleaned out the unit itself and was very kind all the way around. Would absolutely hire them again!

Our Current Specials

$25 OFF any heating and air conditioning service call diagnosis.

**Only valid with completed repair.

$100 OFF Air Filtration System

Rheem Halo Installation

10% OFF our yearly maintenance program

Mention this promo with your service technician.

Recent Blog Posts

HVAC Maintenance Heading into the Fall

Why Fall HVAC Maintenance in Boise Has to Account for Smoke Season, Not Just Cold Weather Most fall HVAC advice reads the same way everywhere: change your filter, schedule a

Keep Your Home Cool with Potential Money Savings

The Pre-Cooling Trick Boise Homeowners Are Missing This Summer Most summer HVAC advice covers the same ground: change your filter, schedule a tune-up, keep your outdoor unit clear of debris.

How Often Should You Replace Your Door Weatherstripping?

Your Guide to Stopping Drafts, Lowering Energy Bills, and Improving Indoor Air Quality At Gem Heating & Air Conditioning, we spend a lot of time talking with Boise-area homeowners about

We're Here For the Long Haul

Gem Heating & Air Conditioning is your heating & cooling leader in Boise, Idaho when it comes to customer care. Whether it’s a one-time repair, or a full HVAC system install, we have the best warranty and guarantee in the industry.

Our Customers Come First

    
 
 
         
   Erin Moser 
 
 
 
  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!!
  
 
        
   Krista Lauinger 
 
 
 
  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.
  
 
        
   Andrew Campbell 
 
 
 
  Great HVAC company! Got my nampa house AC up and running in no time. Thanks James.
  
 
        
   Katherine Miller 
 
 
 
  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!!
  
 
        
   Jarrod Tarkenton 
 
 
 
  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.
  
 
        
   Doug Helton 
 
 
 
  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!
  
 
        
   DB 
 
 
 
  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. 🔥
  
 
        
   Francisco Sanchez 
 
 
 
  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.
  
 
        
   Adriana Maniere 
 
 
 
  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!
  
 
        
   Galverg Maelstrom 
 
 
 
  Very professional, got the AC up and running again within an hour, cleaned out the unit itself and was very kind all the way around. Would absolutely hire them again!