Top-rated air conditioning pros.

Get matched with top air conditioning pros in Johnstown, CO

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Air conditioning pros in Johnstown

Avatar for Behold Heating & Cooling Services
Behold Heating & Cooling Services
5.0(
62
)

Serving Johnstown, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Great experience with seasonal maintenance check. They arrived early in appointment window, checked furnace, humidifier, & air conditioning, explained everything clearly. They replaced a filter, examined every part of air conditioning system, made some recommendations, had easy payment system. I will look forward to using them again!"
Mini Split Install
A nice, new, clean Boiler - restoring heat right in time for the evening!
Glad we were able to restore heat same day for this customer.  Replaced Furnace and A/C for proper installation, air flow and 10 year warranty on FULL SYSTEM.
Glad we were able to restore heat same day.   Full Boiler replacement, repipe and zone valves.
Mini Split Install

+67

60 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for Husky Services, LLC
Husky Services, LLC
4.6(
55
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2011

Emergency services offered

Customers say: Super punctual

"Dayne did great work on our AC when it wasn't blowing cold air. He came out right away and took the time to diagnose the issue. He was very informative and was very fair priced! I would use him again in a heartbeat!"
9 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Steven & Sons Heating and Cooling
Steven & Sons Heating and Cooling
4.7(
118
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2015

Emergency services offered

Warranties offered

"My air went out yesterday, temp in the 90s. Mario called me this morning, a Sunday morning!! He was on his way home after another job and said he could come right over. He diagnosed the problem and fixed the situation, and the air came right on! Amazing, friendly and professional experience, soooo thankful. Thank you Steven and Sons!!"
Steven Brazing one of our larger projects
Brazing
Mariano Brazing
Furnace Loaded and ready for delivery
Cutting

+47

Response time3 hrs
Response rate91%
6 neighbors recently requested a quote
Avatar for Your Comfort Heating and Cooling
Your Comfort Heating and Cooling
5.0(
19
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"We had two AC units and a new furnace installed they were prompt, efficient, very respectful and great customer service! Dean was an absolute pleasure to work with, they have earned my business for life on any HvAC services I might need! Highly recommend"
New Amana Furnace
New Amana Heat Pump
High Efficiency
Outside Condensers
two new condensers

+3

Response time50 mins
Response rate97%
17 neighbors recently requested a quote
Avatar for A Team HVAC
A Team HVAC
5.0(
7
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

With over 10 years of experience in the HVAC industry, we are the service professionals you need to take care of your home or business. We handle all type of HVAC projects. We will treat your home as we would treat our own. Give A Team HVAC a call today, we look forward to working with you!

Before
During
After
Furnace After
Response time5 hrs
Response rate95%
Avatar for Bertolini HVAC Services
Bertolini HVAC Services
5.0(
15
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"I would suggest you drop all other services and go with this one only. This service man is far beyond the skills and service of all others. I had one show up in car and a back pack. He looked at and said he would send a quote ?????? My furnace is out , its late and the temp outside is 0. Tony Bertolini repaired it less then a hour with no parts. This is a man that knows his S!!! and is more than worth his charges.When the weather starts to warm up I will call him to install a new one . [ I will call no one else .}"
Response time1 day
Response rate99%
Recommended by100%of homeowners
Avatar for Limelight Services LLC
Limelight Services LLC
4.7(
19
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"Tony did a great job replacing my broken 50 gallon self venting hot water heater. It is in a difficult space to maneuver getting the old one out and the new one in. He did a great job updating what needed to be done (in my old 1910 home so there is always something!) and I feel very confident in their work. Limelight is my go to place and am so glad I found them!"
Safety first!  Only hire companies that look out for the safety of their workforce!
We love seeing a new furnace installed, it means years of comfort and reliability to come!
LED tape inside and under cabinets
We own our excavation equipment, so we can be there for repairs, same day!  There is no time to waste when the waste won't flow.
Check out this beautiful spring view from a customer's home in SW Boulder, CO.  We will take care of everything you need inside and outside of your house, plumbing, HVAC, or electrical related!

+38

18 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Hart's Heating & Air Conditioning
Hart's Heating & Air Conditioning
5.0(
9
)

Serving Johnstown, CO and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

Looking for a reliable and honest heating and air conditioning contractor? Experienced in residential & commercial heating and air conditioning services. I’m a Colorado native and am based out of Weld County. I service northern Colorado and most of Denver metro areas.

Response time1 day
1 neighbors recently requested a quote
Recommended by100%of homeowners
...
Showing 1-10 of 258

FAQs for air conditioning projects in Johnstown, CO

Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.

Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.

Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.

Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.

Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.

The Johnstown, CO homeowners’ guide to air conditioning services

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