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TRUSTED BY DENVER, PA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon101
    Verified heating and air conditioning services reviews

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

Avatar for DuctGurus, LLC
DuctGurus, LLC
4.9(
225
)
Air Ducts & Vents - Clean

Serving Denver, PA and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"They were prompt and very professional. They kept us informed during the entire process of cleaning our ducts and dryer vent. They also installed an air scrubber and the total cost was several hundred dollars less than the quote we received from an HVAC company. The HVAC company told us we needed mold remediationâ ¦. DuctGurus found no mold. We received great service so we will be using and recommending this company in the future."
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
HVAC Duct Cleaning
Dryer Duct Cleaning

+190

Response time1 day
Response rate85%
70 neighbors recently requested a quote
Avatar for Rohrer's One Hour Heating and Air Conditioning
Rohrer's One Hour Heating and Air Conditioning
4.7(
274
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+9 more

Serving Denver, PA and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1959

Free estimates

Emergency services offered

"The technician Adam couldn't have been more professional and helpful. He arrived on time and was very courteous. He quickly was able to assess the problem and repair it. I'd recommend One Hour Heating and Air Conditioning to anyone looking to install or repair their HVAC system."
 Installations
 Technicians
 Office
  Installations
  Technicians

+16

83 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Jason E Brubaker, LLC
Jason E Brubaker, LLC
4.8(
39
)
Gas Furnace / Forced Air Heating System - RepairCentral A/C - Service or RepairOil Furnace / Forced Air Heating System - Repair+3 more

Serving Denver, PA and surrounding areas

Approved

In business since 2001

Warranties offered

Credit card accepted

"If I ever have a problem with my central air unit, I would hire Jason E Brubaker, LLC again without a second thought. I had put a claim into HomeAdvisor because my central air unit was not blowing cold air. Not only did they put a bid in within a couple hours, but they were also able to schedule me in for later that same week. Brent gave me a call to let me know he was coming and arrived right when he said he would. He was very respectful and professional especially with how the state that the world is in right now. He quickly found the problem, explained it in a way I could understand, and got a replacement part within minutes. The whole process only took a little over an hour. Brent even took the initiative to adjust some of the piping at the unit in my basement to avoid future problems and was very patient throughout the process. He also did all of this while it was raining and took extra care not to track mud or water into the house. I highly recommend this company for any HVAC issues that you might have!"
High efficiency Propane furnace
High efficiency RheemAir conditioning
New air conditioning
New air conditioning
New air conditioning

+8

Response time1 day
8 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for Hoffman Mechanical
Hoffman Mechanical
5.0(
24
)
Central A/C - Service or RepairGas Furnace / Forced Air Heating System - RepairGas Boiler or Radiator Heating System - Repair+7 more

Serving Denver, PA and surrounding areas

Approved

In business since 2024

Free estimates

Customers say: True professional

"Woke to a chilly home stemming from a heat-pump issue. Posted my repair service need on Angi and within minutes, received a text and phone call from HOFFMAN MECHANICAL, who was able to come out same day and got my Lennox unit up and running again at a fair cost for both parts and the weekend/after hours service call fee. I would use them again without hesitation, and I am happy to highly recommend this company!"
Bosch install
Bosch install
Response time8 hrs
Response rate89%
40 neighbors recently requested a quote
Old Skool HVAC,LLC
4.4(
11
)
Gas Furnace / Forced Air Heating System - InstallCentral A/C - InstallElectric Furnace / Forced Air Heating System - Install+47 more

Serving Denver, PA and surrounding areas

Approved

In business since 1982

Emergency services offered

Warranties offered

"I can't say enough about the team at Old Skool HVAC. I learned of this organization from a close friend who had work done and recommended them. Frank is a great guy. On time, professional, knowledgeable, and his team is a reflection of this as well. They were always on time, on schedule, clean, and very personable. They finished our job a little early, and during the first heat wave just about week or two ago, our house never felt better. Great service, quality, and pricing. It's funny, with central AC, you never really know that it's hot out until you leave the house and come home. It's during this first transition that I realized how quiet and effective of a system that was installed. If you are looking for any form of HVAC work in your home of business, I'd recommend contacting this group of professionals."
Response time1 day
7 neighbors recently requested a quote
Recommended by90%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.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

Yes, you should turn off your AC if it’s leaking. Turning off the system prevents more condensation from leaking and reduces strain on the unit if a damaged internal component or lack of refrigerant is the cause. While this may temporarily stop the leak, water can continue to drip from a thawing coil even after the system is off. As soon as you notice a leak, turn off the unit and investigate the source or call a professional for an inspection.

If the air coming from your AC unit is cool but never quite cold, there are a few reasons this might be happening. For starters, it could signal that your refrigerant levels are low. If there are no other indications of this particular issue, like hissing noises or frozen refrigerant lines, anything from dirty filters to damaged condenser or evaporator coils could be responsible for the problem.

A few drips here and there should not be cause for concern, but if your unit is leaking a large amount of water, then it’s advised that you stop using it until the problem is identified and a solution is determined. The more you use it during a leak, the more issues it will cause.

The Denver, PA 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.