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TRUSTED BY MERCED, CA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon87
    Verified heating and air conditioning services reviews

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

Avatar for Mechanical Air, LLC
Mechanical Air, LLC
5.0(
6
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallElectric Furnace / Forced Air Heating System - Install+23 more

Serving Merced, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

Top Rated Air Conditioning & Heating installation and replacement services. 14+ years in business.\n\nOur Expertise: Delivering Comprehensive HVAC Solutions\nWith over 30 years of combined experience in the HVAC industry, our team possesses the expertise to handle a wide range of needs, from efficient AC repair and installation to complex ductwork services and specialized commercial refrigeration.\n\nWhat sets us apart as a premier AC company is our commitment to providing honest, fair-priced service and a customer-first approach. We understand the importance of a comfortable indoor environment, and we strive to exceed your expectations with every service call.\n\nExperience the difference with Mechanical Air.

HVAC System Bosch Installation
Residential HVAC Heat Pump Installation
HVAC System Bosch Installation
HVAC System Bosch Installation
HVAC System Bosch Installation

+7

Response time9 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for The Air Doctor Heating & Air
The Air Doctor Heating & Air
4.8(
34
)
Central A/C - Service or RepairDuctless Mini-split A/C - Install or ReplaceDuctless Mini-split Heating System - Install or Replace+5 more

Serving Merced, CA and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Sam is amazing!!! He did an awesome job. He was on time and he explained everything he was doing. He works evenings so I didn't have to take time off of work to get my AC fixed. He had my AC working in no time. The Air Doctor Heating and Air is highly recommended and I will be calling Sam with all my HVAC needs."
Response time7 hrs
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for United Heating and Air
United Heating and Air
5.0(
4
)
Central Air Cleaner - Repair or Service

Serving Merced, CA and surrounding areas

Approved

Hi, I’m Jeromy, owner of United Heating & Air.\nI started this company with one goal—do the job right and treat people the way I’d want my own family treated. Around here, you’re not just another call on the schedule. I take pride in being honest about what you actually need, and delivering clean, professional work every time.

Avatar for Cosmic Comfort
Cosmic Comfort
4.8(
97
)
Central A/C - InstallCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Install+4 more

Serving Merced, CA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

Cosmic Comfort is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

21 neighbors recently requested a quote
Recommended by94%of homeowners
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Heating and Air Conditioning FAQs, answered by experts

No. Evaporator coils are designed to work with specific refrigerant types, and they are rated by what kinds of refrigerant they use. It’s indicated with an “R” code. It’s important to match your evaporator coil and refrigerant or your system will not work properly. An AC technician can tell you what type of refrigerant your system needs and what evaporator coils will work with it.

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.

Many factors affect how much adding air conditioning will cost you, from the size of your home to the size, type, brand, and installation specifics of the system itself. Chances are, a new central air conditioning system for a 2,000-square-foot house will cost somewhere between $3,900 and $7,900 to install, with an average around $6,000. 

Here’s how AC professionals will clean your AC coils:

  1. Unplug the AC unit or turn off the breaker to the unit in your circuit breaker box.

  2. Remove the faceplate.

  3. Spray a vacuum hose attachment or compressed air can to remove debris, dust, dirt, and grime.

  4. Use a soft-bristled fin comb to remove stubborn caked-on debris.

  5. Use the vacuum hose to suck up any extra debris.

  6. Take a coil-safe cleaning solution and spray it onto the coils. Try to choose a no-rinse solution.

  7. Let the solution sit for at least 15 minutes.

  8. Gently wipe away loosened grime and debris with a microfiber cloth.

  9. Reattach the faceplate, plug in your AC system, or turn the breaker back on.

You can air condition your Arizona room by extending your home’s existing HVAC system or adding a ductless mini-split system. Arizona rooms that have full windows rather than screens only are a better choice for air conditioning—screens will let the cold air out as fast as the air conditioner can make it. 

The Merced, 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.