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TRUSTED BY PLEASANT HILL, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon560
    Verified heating and air conditioning services reviews

Top-Rated Heating and air conditioning pros in Pleasant Hill - Updated Nov 2026

Avatar for Global Comfort Heating and Air
Global Comfort Heating and Air
4.8(
52
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service

Serving Pleasant Hill, CA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Prompt, courteous, hard working! Called for service and they came the same day and gave me an estimate for repair and an estimate for a new furnace! I decided on a new furnace as mine was 18 years old! They came the next morning and were done within 2 hours! The thing I liked most was they didnâ t pressure me at all but waited patiently for my decision!"
Team Global Comfort Truck
Carrier Heater Changeout
Duct Install securing runs
Duct Install securing runs
Carrier 95% Installation

+9

Response time50 mins
Response rate94%
1 neighbors recently requested a quote
Avatar for Tyndall HVAC, Inc.
Tyndall HVAC, Inc.
4.2(
108
)
Central A/C - InstallHeat Pump - Install or ReplaceCentral Air Cleaner - Repair or Service+8 more

Serving Pleasant Hill, CA and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"Peter and his crew especially Jason did a fantastic work at my place in Blackhawk, CA. I was impressed with Pete's knowledge and honesty, had interviewed three other vendors prior. They install two HVAC units at my home and also provided awesome after sales service. I would recommend them highly to other. Thanks"
Response time1 day
13 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for New Millennium HVAC Cleaning Services
New Millennium HVAC Cleaning Services
5.0(
7
)
Air Ducts & Vents - Clean

Serving Pleasant Hill, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"These guys are just excellent! I made a few mistakes before I got lucky to find New Millennium HVAC. They were professional from the beginning to the end. Jose did a thorough job, cleaning the dryer vent. It was not a straightforward issue and I was afraid that we’d have to open the wall to cure the blockage. However, Jose was able to fix it. He’s an experienced professional excellent at his job, trustworthy and overall great to deal with. I’m a happy customer for years now and will rely on these guys for any HVAC related issues."
Response time4 hrs
Response rate97%
1 neighbors recently requested a quote
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Heating and Air Conditioning FAQs, answered by experts

If your whole house is cold that’s one thing, but what if you only have a few rooms that are cold? First, you need to determine why this may be happening. A good place to start is to investigate the potential causes listed in this article—heat transfer, airflow, thermostat problems, humidity, and insulation. Once you’ve narrowed down the issue, you’d apply the same principles to the cold rooms as you would to the entire home.

A calculation method that your HVAC contractor will use to ensure your system does what it's supposed to is measuring duct output, or its CFM. The calculation requires knowing the cross-sectional area of the ductwork and determining the air speed past any given point within it.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. 

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

Your AC might not cool after a power outage because of a tripped circuit breaker, blown fuse, or damage to the compressor or capacitor. If you notice your AC not working after a power outage, in most cases, the breaker has tripped or the system has built-in brownout and blackout protection. Reboot the AC by turning it off at the thermostat, resetting the circuit breaker, and waiting 30 minutes to turn the AC on again. 

There are several common types of HVAC systems that you may have, including split systems, hybrid HVAC, duct-free systems, packaged heating and air, geothermal heating, or even portable units for heating or cooling. If you aren’t sure which type is in your home or are looking to install something different, you should consult an HVAC pro to determine which option is right for your heating and cooling needs.

The Pleasant Hill, 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.