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TRUSTED BY SAN ANSELMO, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon94
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in San Anselmo - Updated Nov 2026

Avatar for Next Level Heating & Air Conditioning, Inc.
Next Level Heating & Air Conditioning, Inc.
4.9(
78
)
Central A/C - InstallDucts & Vents - Install or ReplaceCentral A/C - Service or Repair+9 more

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"Charlie and Charlie were both exemplary. Professional, responsive, and timely. Great communications, excellent team who did very high quality work in a very reasonable amount of time. Extremely satisfied, would highly recommend anyone looking for HVAC solutions."
Response time1 day
11 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Moore Home Services
Moore Home Services
4.4(
225
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+12 more

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Very prompt to respond to my call. Service person very pleasant and knowledgeable. Reviewed in detail what he thought problem was. Offered to have me sign up for regular service visits twice a year which made cost of this visit nothing so I agreed. Said they would order part he thought I needed and have it available if required which I appreciated. He wrote some descriptions of the HVAC system in his notes which described ducts as in " poor condition " but didn't mention that to me. I thought he should have. Will use again."
After 1
 View 1
 Right Side View
Perfect Retrofit
After 2

+15

29 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Elevated Comfort
Elevated Comfort
4.7(
45
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+15 more

Serving San Anselmo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"We had a totally broken HVAC system in our 30 year old house. They came in and fixed it in two days. The guys were very friendly and answered our questions. Our original salesperson was knowledgeable and respectful considering the state of our equipment at that time. Now we have heat for the rest of the Winter and AC for next year. Thank you!"
Furnace
Furnace
Tankless Water Heater
Bosch Heat Pump
Equipment Installs

+2

Response time5 hrs
Response rate100%
70 neighbors recently requested a quote
Avatar for Enviro Heating & Air Conditioning Inc.
Enviro Heating & Air Conditioning Inc.
4.5(
45
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+2 more

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

Enviro Heating & Air Conditioning 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

31 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+27 more

Serving San Anselmo, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Albert Nahman PHC installed new AC and Furnace for my house. I like them for several reasons -- 1. At first Tom explained in detail what equipment I need and how they work, and gave me a reasonable and detailed quote at end of the visit. 2. They offer interest free finance. 3. I got free upgrade for furnace when the original quoted is not available. 4. Their installer did good job, and cleaned up afterward. I highly recommend this company."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
43 neighbors recently requested a quote
Avatar for Green Core Heating & Air
Green Core Heating & Air
5.0(
8
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+7 more

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Green Core HVAC was awesome to work with! The team did a great job helping us pick the perfect AC unit for our home. They showed up on time, got the new AC installed quickly, and left the place spotless. Our house is cooler and more comfortable than it’s ever been. You can tell these guys really care about doing a great job. I’d 100% recommend Green Core to anyone needing AC work. Super professional, super friendly, and they really know what they’re doing!"
Air Conditioning Install
Harvest Thermal
Harvest Thermal
7 neighbors recently requested a quote
Avatar for American Heating & Air, LLC
American Heating & Air, LLC
5.0(
14
)
Central A/C - InstallDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+8 more

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2021

Warranties offered

Offers commercial services

"Rick and his team were awesome. They were very thorough, put everything they moved in my garage back and Rick made sure to have me check both the heater and AC once installation was complete. He also installed my smart thermostat for me. I would highly recommend Rick and his team."
Old Condenser
Old Furnace
Furnace Replacement
Condenser Replacement
Response time1 day
Response rate97%
13 neighbors recently requested a quote
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Showing 1-10 of 362
Heating and Air Conditioning FAQs, answered by experts

You will only need to refill your AC with refrigerant if it has a leak. Otherwise, a modern, well-maintained AC will most likely never need a recharge. You may notice a leak in an older system if your bills are higher, you hear a hissing sound, or if the air is blowing out hot.

Keeping your air filter clean is crucial for your heat pump's efficiency. As a general rule, you should check your air filter every 1 to 3 months. However, the actual frequency might vary depending on factors like the type of filter, indoor air quality, and the amount of dust and debris in your area. If you notice the filter is visibly dirty or clogged, it's a clear sign it needs attention sooner. Regular filter maintenance ensures proper airflow and helps your heat pump perform optimally, keeping your indoor air fresh and comfortable.

If there’s a freon leak in your home’s AC unit, it will cause the system to work overtime to cool the house. That issue will result in higher energy bills and it will take much longer for cool air to disperse throughout the home. If your system has a freon leak during the summer, it can make hot days miserable. That’s why it’s important to hire an HVAC professional to resolve a freon leak as quickly as possible.

The DOE is phasing out AC units with SEER ratings that fall below 14 or 15. The exact minimum rating depends on your region. In the northern United States, new ACs must have a minimum SEER rating of 14, though you can still buy and install older systems as long as they were compliant when they were manufactured. In the southern and southwestern United States, you cannot buy or install older air conditioners with lower SEER ratings. The minimum rating is between 14.5 and 15, depending on the power of the unit.

No, it's not safe to keep using your unit when it's frozen. Not only can running a frozen unit lead to damage, but it can also potentially overheat, making it a fire hazard. Therefore, it's always best to turn off the AC unit as soon as you notice any ice.

The San Anselmo, CA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.