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Verified Reviews for Heating And Air Conditioning Service pros in Knox, PA

*The Angi rating for Heating And Air Conditioning Service companies in Knox, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Knox, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on December 30, 2025

Find Heating and air conditioning pros in Knox

Avatar for Advantage Remediation Services
Advantage Remediation Services
5.0(
6
)
Air Ducts & Vents - Clean

Serving Knox, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"My family hired this company to clean our ducts in our new home and we?re very pleased with the job done. Very friendly and professional team arrived on time and completed the job in a timely manner. Would recommend to family and friends."
My Jobs
My Jobs
My Jobs
My Jobs
My jobs

+10

Response time9 hrs
Response rate96%
9 neighbors recently requested a quote
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Hoehn's Electrical Service
3.7(
3
)
Thermostat - Repair or Reprogram

Serving Knox, PA and surrounding areas

Approved

In business since 2015

Free estimates

Small jobs welcome

"Very pleased with the finished work. Donny did a great job with everything, he really knows what he is doing. Put a new service entrance in, new breaker box in the basement, fixed up an old dryer plug and some new wiring. I have a few other smaller projects and he will be my go to guy. Thanks again Donny."
Response time1 day
Recommended by100%of homeowners
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A.D.A.M. Hughes Heating and Refrigeration
New to Angi
Central A/C - Service or RepairCentral Air Cleaner - Repair or ServiceElectric Boiler or Radiator Heating System - Install - For Business+15 more

Serving Knox, PA and surrounding areas

Approved

In business since 1997

Free estimates

A.D.A.M. Hughes Heating and Refrigeration is committed to excellence in every aspect of our business. We uphold a standard of integrity, bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time4 hrs
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Avatar for Alex’s handyman services
Alex’s handyman services
New to Angi
Central A/C - Service or RepairHeat Pump - Install or Replace

Serving Knox, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

I have 8+ years experience in the heating and air conditioning field. I’m very mechanically inclined, therefore I’m quite useful to do just about anything. I’ve done everything from general around the house stuff to full scale renovation work. I would be my pleasure to do any work for you!

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Avatar for A1 Comfort Heating & Cooling Inc
A1 Comfort Heating & Cooling Inc
4.9(
104
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+47 more

Serving Knox, PA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Unit worked beautifully after the service"
May, 2021, West Hickory, PA 16351. Agreed upon proposal: Completed the three shutoff valves and gas lines, installed tankless water heater, and connected new waste and water lines from outside to inside. Workmanship guarantee. Customer will be completing other work not in the contract.
Installation June, 2021
Installed woodburner provided by customer to code
New Installation of Air Conditioning System.
Installation Titusville, PA 16354 new ductwork and new furnace August, 2021.

+206

Recommended by98%of homeowners
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Avatar for AdvantaClean of DuBois-Punxsutawney
AdvantaClean of DuBois-Punxsutawney
4.8(
134
)
Air Ducts & Vents - Clean

Serving Knox, PA and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"I hired AdvantaClean of DuBois/Punxsutawney PA to clean my homes air ducts. The service was polite, friendly, and efficient. Would recommend!"
Black mold
Remediated cement block wall
Family room
Ceiling
Family room

+2

Response time2 hrs
Recommended by96%of homeowners
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Avatar for Air Adviser, LLC
Air Adviser, LLC
5.0(
24
)
Ducts & Vents - Install or Replace

Serving Knox, PA and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Called Josh on a Saturday morning to report a problem with our heat pump by noon he was here and had identified the problem. We are very happy with this company as they do not use a 1000% markup on parts like some HVAC companies in the area seem to charge. With Air Adviser you get Honest service at an Honest price."
Installations
Furnace
Furnace
Furnace
Heater Repair

+11

Response time4 hrs
Recommended by100%of homeowners
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Heating and Air Conditioning questions, answered by experts

As a general rule, you should have your HVAC system professionally serviced at least once a year, though it's best to follow the manufacturer's specific recommendations. Many experts suggest twice-yearly maintenance: once in the spring for the cooling system and once in the fall for the heating system. This is especially recommended for older units, systems with recurring issues, or heat pumps that provide both heating and cooling. Regular service, which can cost between $100 and $550, keeps the system running efficiently, helps prevent costly future repairs, and saves money on utility bills.

If your AC condenser is nearing the end of its life, it might leak fluid or make loud or unusual sounds (like grinding or hissing). You might also notice that it isn’t heating your home as evenly or effectively as it once did. Also, an aging condenser will have to work harder to cool your home, which may force it to use more power and drive up your utility bills.

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.

If your drain line is clogged, your AC might stop cooling, shut down, or refuse to turn on at all. Otherwise, you might see your AC leaking water, find standing water or water damage near the unit, or notice a musty smell coming out of your air conditioner or vents.

This depends on the extent of the freezing. Some ACs only need an hour or two to thaw out, but others may need a full day to completely unfreeze. Once you turn off the system to let it unfreeze, check it periodically to make sure the drain pan doesn’t overflow. When you turn the system back on, keep an eye on it to ensure it doesn’t start freezing again.

The Knox, 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.

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