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4.7

(396 reviews)

Top-rated heating and air conditioning pros.

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Avatar for AC Dave Heating & Air
AC Dave Heating & Air
4.9(
93
)

Serving Acton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"We noticed a foul smell coming from one of the vents in our HVAC system. We turned the system off and called AC Dave. Dave sent Justin and James to troubleshoot the problem. They quickly found a tear in one of our ducts--and the remains of a dead rodent. They cut open the duct, cleaned it and resealed it. We had heat again, about an hour after they arrived. Very fast and competent service."
Additional Photos
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Additional Photos

+6

Response time7 hrs
7 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for HD MECHANICAL INC
HD MECHANICAL INC
5.0(
26
)

Serving Acton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"THE OWNER; CHRIS ROBINSON WAS AMAZING, EXCEPTIONAL CUSTOMER SERVICE, GREAT PEOPLE SKILLS. UNBEATABLE PRICING ON UNITS & LABOR I HAD BEEN QUOTED VERY HIGH BY 4 OTHER COMPANIES, HD MECHANICALs PRICING WAS HONESTLY EXTREMELY AFFORDABLE. HIGHLY RECOMMENDED FOR ALL YOUR HVAC NEEDS!!"
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Heating & A/C Project
Additional Photos

+14

Response time9 hrs
Response rate85%
53 neighbors recently requested a quote
Avatar for Just Be Cool Supply LLC
Just Be Cool Supply LLC
5.0(
8
)

Serving Acton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"I needed my HVAC system urgently repaired, the technician arrived promptly to resolved the issue. They were professional and knowledgeable and gave me honest recommendations & also was very helpful. Highly recommend! Thank you!"
Heating & A/C Project
Heating and air
5 ton split system
Heating & A/C Project
Heating and air

+22

2 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for SoCal Climate Control - LA
SoCal Climate Control - LA
4.2(
414
)

Serving Acton, CA and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"This company was professional, expedient, courteous, and helpful from start to finish. Not having any experience with HVAC, they explained what was needed and why, they helped me with permits and testing as well as accommodating the requirements if my HOA. I highly recommend this company,"
SoCal Staff
722 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Just Be Cool Supply, LLC
Just Be Cool Supply, LLC
5.0(
40
)

Serving Acton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"I recently had both of my AC units serviced by Just Be Cool Supply LLC, and I couldn’t be more satisfied with the experience. Dyon and his team were prompt, professional, and easy to work with from start to finish. They arrived on time, were well-prepared, and took the time to explain what they were doing without rushing through the job. Everything was handled efficiently, and the quality of work was excellent. What really stood out was their honesty and approach. There was no upselling or pressure, just straightforward recommendations and fair pricing. It’s clear they take pride in their work and genuinely care about helping customers rather than just making a quick sale. Dyon is also doing something special beyond the business itself. He actively mentors young people in the trade, helping them build skills and a future. That kind of leadership says a lot about the integrity behind the company. Overall, Just Be Cool Supply LLC is reliable, affordable, and highly professional."
New installation
New installation
HVAC installation
New Ac
New Ac

+11

Response time7 hrs
Response rate90%
6 neighbors recently requested a quote
Avatar for AMS Dynamic Realty Services
AMS Dynamic Realty Services
5.0(
75
)

Serving Acton, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Emergency services offered

Small jobs welcome

"Terrance did a great job putting up the TV in my home. Was very respectful and did a quick job. Very communicative, and I highly recommend his service. Will definitely reach out to him for future projects."
Small ADU
Room Addition
Outdoor Bar
Room Addition
Outdoor Bar

+21

Response time1 day
1 neighbors recently requested a quote
Recommended by49%of homeowners
Avatar for Knockout Heating And Air
Knockout Heating And Air
4.8(
20
)

Serving Acton, CA and surrounding areas

Approved

In business since 2023

Emergency services offered

Warranties offered

We are a family owned residential HVAC repair, maintenance, and installation business. We offer quality workmanship along with excellent customer service at affordable prices. For all of your air conditioning and heating needs please give us a call, text, or email. We even install and service mini splits.

6 neighbors recently requested a quote
Recommended by89%of homeowners
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Heating and Air Conditioning questions, answered by experts

It’s not customary to tip HVAC technicians, and most professionals won’t expect it. However, it’s a nice way of showing your appreciation for the work they do, especially if they come out in inclement weather or on a weekend or holiday to fix an emergency issue if your heat or AC goes out in extreme temperatures. A good tip would be between 10% to 20% of the total bill, depending on how above and beyond the tech goes for your repair and on the total cost of your HVAC repair or service. For something like a routine tune-up or scheduled maintenance, tips aren’t expected.

When an evaporator coil becomes faulty, it can result in various problems within your HVAC system. These problems could include reduced cooling or heating capabilities due to ice formation and obstructed airflow, along with increased energy consumption and higher bills. Additionally, a damaged coil may lead to refrigerant leaks, which are environmentally harmful and decrease overall system efficiency.

Ultimately, if not addressed right away, a bad evaporator coil can even lead to a complete failure of your HVAC system. That’s why timely repair or replacement is crucial to maintaining your family’s comfort and your HVAC’s efficiency.

Air conditioners can stop working in the middle of the night for many reasons. Your local power grid might shut down late at night. Power surges can also trip your breakers if too much power is being used in the area at the time. If your AC is connected to a digital thermostat, it gets naturally cooler at night, so the outdoor temperature might dip below the automated setting to turn the cooling system off.

If refrigerant levels are low, it can cause the evaporator coil to freeze up. Low freon causes a drop in pressure, which will make the coil too cold and cause moisture to freeze on the coil. Your system may be low on refrigerant because of a leak

Make sure to have maintenance performed twice a year, and contact your local HVAC technician if you suspect your system has low freon levels.

If you’re looking for a portable, budget-friendly cooling solution that doesn’t require any venting or installation, a ventless AC system is a good option. Similarly, this is a great choice if you’re renting an apartment or home and aren’t allowed to make large, structural changes like installing comprehensive HVAC, or you’re in a shared space and only need to cool your own room.

The Acton, 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.