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TRUSTED BY HERALD, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon377
    Verified heating and air conditioning services reviews

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

Avatar for Star Energy, Inc.
Star Energy, Inc.
4.7(
42
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+1 more

Serving Herald, CA and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

Star Energy is a Sacramento based construction company that specializes in improving your home’s energy efficiency. Owner, Lance Newey, has a hands-on personal approach to every job. Schedule a meeting with him for your free in-home consultation! He makes sure every job is done right.

HVAC
HVAC project samples
HVAC project samples
HVAC project samples
HVAC project samples

+14

15 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Clear Efficiency
Clear Efficiency
5.0(
57
)
Central A/C - InstallHeat Pump - Install or ReplaceDucts & Vents - Install or Replace

Serving Herald, CA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Jesse came out to diagnose our leaky window and spent several hours going over it, our insulation level (turns out its pretty good) and other places where we were losing efficiency. His FLIR tool proved the window turned out not to need fixing. I am glad I asked him to come as I would have probably paid another company for a costly new window I didn't need."
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System
SunPower Equinox Solar System

+14

Response time20 mins
Response rate100%
19 neighbors recently requested a quote
Avatar for McCormick Home Builders, Inc.
McCormick Home Builders, Inc.
4.7(
42
)
Air Ducts & Vents - CleanCentral Air Cleaner - Repair or ServiceRadiant Floor Heating System - Install

Serving Herald, CA and surrounding areas

Approved

In business since 2017

Free estimates

Customers say: True professional

"We hired McCormick to remodel our master bathroom, and the process couldn’t have been smoother. Khaled guided us through everything, and his team was skilled and respectful. They handled the job efficiently, stayed within budget, and kept our home tidy. Now, our bathroom feels like a relaxing oasis, with high-quality finishes and a modern touch we love. McCormick’s attention to detail really made the difference, and I’d gladly hire them for future remodels. This experience was everything we hoped for."
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+1

Response time6 hrs
Recommended by17%of homeowners
Avatar for 2 Plumbs Up Plumbing & Remodeling, Inc.
2 Plumbs Up Plumbing & Remodeling, Inc.
4.8(
7
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallDuctless Mini-split A/C - Install or Replace+2 more

Serving Herald, CA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"Recently my home insurance company required that I install an automatic leak detector water shut off and a gas leak shut off so they could insure my home. 2 Plumbs up were very professional since our first contact. They were accurate on the installing and their customer service was outstanding! I will definitely be using their services in the future! You can't go wrong with their services! Andreia, EDH Ca."
Vanity (Before)
Vanity and Mirrors (After)
Bathtub (Before)
Shower (After)
Full view from Door (Before)

+2

Response time6 hrs
Response rate99%
16 neighbors recently requested a quote
Avatar for PM Electrical Services
PM Electrical Services
4.7(
48
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Herald, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"They were fast, punctual, knowledgeable and took the time to explain the process and show me what was happening. They were polite, left the work area clean and I would definitely recommend them and will be utilizing them for future wiring repairs!"
Kitchen lighting upgrade
Kitchen lighting upgrade
Kitchen lighting upgrade
Kitchen lighting upgrade
Kitchen lighting upgrade

+12

3 neighbors recently requested a quote
Recommended by25%of homeowners
Avatar for Thermotech Solutions, Inc.
Thermotech Solutions, Inc.
5.0(
2
)
Central A/C - InstallCentral A/C - Service or RepairElectric Furnace / Forced Air Heating System - Install+2 more

Serving Herald, CA and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"I called ThermoTech Solutions and they sent out a technician within 24 hours. I was pleasantly surprised that the technician was the same gentleman I talked to over the phone so I did not have to retell what was wrong with my system. Jason my technician who is also the owner was great. He tested my system, knew exactly what was needed, and had it repaired the very same day. He did not try to sell me on upgrading my unit or a bunch of repairs I did not need. The service was fast, very reasonably priced, and I have had no issues since. Will definitely be having ThermoTech Solutions come out for all my HVAC needs in the future!"
Response time1 day
Recommended by100%of homeowners
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Showing 1-10 of 257
Heating and Air Conditioning FAQs, answered by experts

It is possible to add air conditioning to an older home, but it can be very expensive to do so. Expect to pay anywhere from $6,000 to $17,000 or more for the ductwork and AC unit. You’ll also have to hack into the home’s walls and ceilings to add ductwork, which can impact the aesthetics of an old home.

Window ACs use 500 to 1,400 watts per hour of electricity, while mini-splits use 500 to 700 watts per hour. However, if you need to cool multiple zones in your house, your mini-split can use as much as 2,000 watts per hour. How often you run your system will impact how much electricity you use (and how much you pay per month).

Running an air conditioner with mold is not safe because it can spread harmful mold spores throughout your home. Exposure to these spores can trigger various health problems, including respiratory issues, allergies, coughing, wheezing, sneezing, itchy eyes, and a sore throat. It may also aggravate asthma in household members. Continued exposure can increase the risk of more serious illnesses like sinus infections, pneumonia, and bronchitis. If you suspect mold in your air conditioner, you should stop using the system until it has been properly cleaned to avoid health risks and further contamination.

When your HVAC technician mentions recharging your home AC unit, they’re referring to the process of topping off the unit with refrigerant, so the levels are properly maintained and pressurized. Normally, a properly functioning AC unit doesn’t need additional refrigerant, but AC units can develop leaks or other problems that decrease the amount of refrigerant needed.

Yes. Your air supply should be balanced. The return and supply ducts need to maintain that balance, and this only occurs because an equal amount of air should be entering and leaving your HVAC system. Changes in pressure, extreme weather, and blocking vents with furniture or your stuff can make the air supply unbalanced and cause your home to get too cold or hot.

The Herald, 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.