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Top-Rated Geothermal heating or cooling system installers in Napa - Updated Nov 2026

Boden Plumbing Inc
4.7(
42
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

In business since 1992

Credit card accepted

Customers say: Super punctual

"I had just purchased the house last fall and this week YEARS of buildup in the kitchen sink came to a head. Daniel from Boden plumbing came out. He arrived just after the service window (2:05 for a 2pm to 4pm service window). He was very cool, friendly, polite and made quick work of the drain.
I would totally go with them again

"
Response time8 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Moore Home Services
Moore Home Services
4.4(
225
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Starting with JP the senior technician, the inspection and documentation of existing conditions was thorough, knowledgeable, and complete. Moore recommended the replacement system that would be more durable and require lower maintenance over time, and wrote a detailed proposal with a floor plan documentation. We were given financing options at the time of signing the agreement, as well. The team- five technicians!- were properly suited with protective gear and followed COVID protocols at all times on our property, inside and out. They wore shoe protectors while inside, kept us fully appraised at every task (all interior registers replaced in 11 rooms), and were extremely respectful of our space, privacy, pets, and kept noise and speaking to low levels. (our extremely friendly indoor cat got lots of attention from the team!) The work required three days to fully replace all ductwork in a two-story home with attic and crawl space, and Paul the team leader would check in with us each morning with a briefing of each days' activities. The entire team was constantly in learning mode, with the senior technicians mentoring and teaching the younger team members, which greatly impressed me. They finished on time and without any delay or disruption; they cleaned each work area and removed all debris, packaging, and the old system. We've owned this house for 20 years, had many repairs and replacements, and Moore has raised the bar so far for quality and value. While they were the middle bid in terms of overall cost, we believe we received higher value that even the highest bid. I can strongly recommend them to anyone planning repair work on their existing system, new installations, or maintenance. After getting few responses from HVAC contractors working in new homes in Sonoma County, we were pleased to know that Moore specializes in existing homes and responded to our online request within minutes. I'd be happy to share my experience in person, if required. Martin Waldron Sebastopol, CA"
After 1
 View 1
 Right Side View
Perfect Retrofit
After 2

+15

24 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Tyndall HVAC Inc.
Tyndall HVAC Inc.
4.4(
23
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2004

Free estimates

Warranties offered

"These guys are AMAZING! They replaced a furnace and overall I was VERY
IMPRESSED. Their prices were great, their service was 10/10 and overall
very professional and trustworthy. I rarely review, but I feel good
about recommending them because I know you will be in great hands.
"
Peter Tyndall (Owner)
Our Trucks
New unit Installed
Additional Photos
Additional Photos

+5

Response time11 hrs
Response rate100%
13 neighbors recently requested a quote
Avatar for Comfort Factor Mechanical, Inc
Comfort Factor Mechanical, Inc
5.0(
12
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

Comfort Factor Inc is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business. \n\n\n

System replacement
Mini split install
Mini split install
Mini split install
Mini split install

+18

9 neighbors recently requested a quote
Recommended by8%of homeowners
Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved (Corporate)

In business since 1990

Free estimates

Warranties offered

"It went very well; the thorough HVAC system checkup revealed some questionable component that were best suggested to be replace with new ones. I am not confident that my HVAC system is set for more that good performance going forward. I appreciated the non-pressured advice and suggestions in coming to my decisions. Thank you, Joaquin Ortiz."
7 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for North Bay Air Systems, Inc.
North Bay Air Systems, Inc.
New to Angi
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Established in 1989, North Bay Air Systems, Inc., prides itself on an outstanding record of quality service and attention to detail. With over 18 years experience in the industry, Ron will work hard to insure that your needs are met in a timely manner. \n \nThe quality of workmanship you will see with North Bay Air Systems will be beyond your expectations. We offer expert installation, maintenance and repair services by a team of highly skilled, professionals. \n \nWhatever your needs, either service, repair or installation call North Bay Air Systems today! \n

Response time1 day
Avatar for Nestly Heating And Cooling
Nestly Heating And Cooling
New to Angi
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

Nestly Properties Llc is a family-run business with integrity. We have been around since 2021 and love what we do. We are a full-service HVAC and home comfort company, including remodeling, retrofitting, restoration, and more. Our customer service is legendary, and our work speaks for itself.

Hardwood restoration
High Gloss
Goodman AC install
2 neighbors recently requested a quote
Avatar for HVAC Utor Services
HVAC Utor Services
5.0(
31
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"This is a family owned small business. They are friendly, professional, punctual, and really know their stuff. All at a very fair price. My AC had been getting worse every year until last year. HVAC Utor came out and fixed it. It ran better than ever before. This year it was just blowing air so I called again. Same great service as last year. Rachel kept me informed so I knew when they would be here. The problem turned out to be the new thermostat I had installed a couple of months ago. Diego had it figured out and fixed in 15 minutes. I can't say enough good about this company and the people who run it. They're the best!"
Additional Photos
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+24

Recommended by100%of homeowners
Avatar for Service Champions Heating & Air Conditioning
Service Champions Heating & Air Conditioning
4.6(
688
)
Geothermal Heating or Cooling System - Install

Serving Napa, CA and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Just had the initial diagnostic visit. I was given terrible news (I'll probably end up getting a new furnace $$$), but the technician Ricky was wonderful. He was extremely polite, professional, and friendly. He did a very thorough inspection and then gave me a very thorough explanation of the problems. This included photos he took on the spot of some internal parts (oil leakage, heavy dust & dirt, stress markings).... at no point did I feel like I couldn't trust what he was telling or showing me. He answered every question I had. He went into the "attic" of my Eichler to check the ductwork (via a 14" hole in the closet ceiling, into space so shallow and tight I have no idea how the ductwork was ever even installed), and came out with photos to show me. The company was easy to work with when I had to change appointments, sent me email and text confirmations of everything, and gave me a day-before reminder of the appointment. I had an 8a- 11a window and received a text at 7:50a letting me know the technician was on his way, with a photo of him included. Perfect, perfect, perfect. The visit was $89 but reduced to $39 because I signed up for the MVP membership: $107 for a year which gets me all kinds of free services plus discounts on everything else. It even includes services on my water heater which they did not install! Additionally, they have some really good guarantees, MVP or not. Before leaving he called the office, explained all he'd found, and handed me the phone to set up an appointment with a "comfort specialist". Ariel (on the phone) was also extremely polite, professional, and friendly. These people are trained right! Or they're hiring very well. So, I will be meeting with someone to discuss repairs vs. replacement options. No repair work has been done yet (although Ricky did do a temporary fix that is allowing me to get some heat), so I can't fully review the company. But thus far I'm 100% pleased. This is probably the best experience I've ever had with any kind of repair technician. I've never used them before and have also never written a review before. The experience was just that good. I'll write another when I've finished with them just to give a full review, but so far perfect!"
Additional Photos
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+42

Response time9 hrs
Response rate100%
Recommended by91%of homeowners
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