Top-rated heating and air conditioning pros.

Get matched with top heating and air conditioning pros in Knox, PA

Enter your ZIP and get matched with up to 5 pros

TRUSTED BY KNOX, PA HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon45
    Verified heating and air conditioning services reviews

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 November 08, 2025

Find Heating and air conditioning pros in Knox

Avatar for House & Home

House & Home

5.00(
10
)
•Approved Pro

House & Home

5.00(
10
)
•Approved Pro
Customers say: Quick response
192 local quotes requested
25 years of experience

I am an owner operated carpentry and maintenance service with 35 years of knowledge and experience. I work inside and outside. Working on any building from top to bottom. I have built new homes and remodeled all rooms in old homes. I build, install, patch, paint and fix most anything.

"What an absolute pleasure of an experience! Timely, kind, great work!! Absolutely recommend "

Eric G on November 2025

I am an owner operated carpentry and maintenance service with 35 years of knowledge and experience. I work inside and outside. Working on any building from top to bottom. I have built new homes and remodeled all rooms in old homes. I build, install, patch, paint and fix most anything.

"What an absolute pleasure of an experience! Timely, kind, great work!! Absolutely recommend "

Eric G on November 2025

Avatar for RedLine Contracting

RedLine Contracting

4.90(
41
)
•Approved Pro

RedLine Contracting

4.90(
41
)
•Approved Pro
Super Service Award
Customers say: True professional
908 local quotes requested
7 years of experience

RedLine Contracting Is A Fully Insured, Family Owned And Operated Company. From General Contracting, To Handyman Projects, You Can Always Rely On Us To Get The Job Done Right! With Free Estimates, Theres No Need To Wait! Reach Out Today On Google, Angi, Or Directly Through Our Website. We Look Forward To Working With You!

"Gino @ Redline did several repair and upkeep jobs for us, including installing a new kitchen faucet, replacing the ballcock in the toilet tank, installing a new door knob, among other help. He was professional, reliable, courteous, got the jobs done. He even went above and beyond when we had issues with a fridge install (different company): he came back free of charge to help us move our heavy kitchen island to make space for moving the fridge. We offered a tip, but he declined that, too. To top it off, he told us to call him when it's time to move the island back. I highly recommend him. "

Pat L on August 2025

RedLine Contracting Is A Fully Insured, Family Owned And Operated Company. From General Contracting, To Handyman Projects, You Can Always Rely On Us To Get The Job Done Right! With Free Estimates, Theres No Need To Wait! Reach Out Today On Google, Angi, Or Directly Through Our Website. We Look Forward To Working With You!

"Gino @ Redline did several repair and upkeep jobs for us, including installing a new kitchen faucet, replacing the ballcock in the toilet tank, installing a new door knob, among other help. He was professional, reliable, courteous, got the jobs done. He even went above and beyond when we had issues with a fridge install (different company): he came back free of charge to help us move our heavy kitchen island to make space for moving the fridge. We offered a tip, but he declined that, too. To top it off, he told us to call him when it's time to move the island back. I highly recommend him. "

Pat L on August 2025

TD ENERGY EXPERTS, LLC

No reviews yet

TD ENERGY EXPERTS, LLC

No reviews yet
7 years of experience

TD Energy Experts, LLC. is a full service Mitsubishi Ductless Heating and Cooling Diamond Contractor. With TD all of our customers receive a 12 yr Compressor/Parts and 12 yr labor warranty. That's one reason our customers choose to do business with us "Why settle for a field goal when you get a TD with TD Energy Experts"!

TD Energy Experts, LLC. is a full service Mitsubishi Ductless Heating and Cooling Diamond Contractor. With TD all of our customers receive a 12 yr Compressor/Parts and 12 yr labor warranty. That's one reason our customers choose to do business with us "Why settle for a field goal when you get a TD with TD Energy Experts"!

Gater Mechanical LLC

No reviews yet

Gater Mechanical LLC

No reviews yet
Free onsite estimate

Gater Mechanical LLC is a reliable and professional HVAC Contractor in Newville, PA. If you need HVAC Repair or any other HVAC Service, this is your company ! Visit our website or call us now at (717) 696-6087 ! Bloserville, PA; Entlerville, PA;Plainfield, PA; Carlisle, PA; Newville,PA

Gater Mechanical LLC is a reliable and professional HVAC Contractor in Newville, PA. If you need HVAC Repair or any other HVAC Service, this is your company ! Visit our website or call us now at (717) 696-6087 ! Bloserville, PA; Entlerville, PA;Plainfield, PA; Carlisle, PA; Newville,PA

Avatar for American Home Guard Home Warranty

American Home Guard Home Warranty

5.00(
1
)

American Home Guard Home Warranty

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

American Home Guard is America’s top rated home warranty provider. They service home buyers and sellers across the nation.They offer home warranty service plans for single family homes, multiple units, condos, and even mobile and manufactured homes. They are proud to offer their referral and realtor programs as well as enticing rates to multiple property owners.

American Home Guard is America’s top rated home warranty provider. They service home buyers and sellers across the nation.They offer home warranty service plans for single family homes, multiple units, condos, and even mobile and manufactured homes. They are proud to offer their referral and realtor programs as well as enticing rates to multiple property owners.

M C Plum Inc Plumbing Heating & AC

3.50(
8
)

M C Plum Inc Plumbing Heating & AC

3.50(
8
)
Customers say: Super punctual

ADDTL ADDRESS: PO BOX 39, CHAMBERSBURG, PA 17201.

"THE WORST COMPANY I have ever delt with. The repair lasted for 17 days and then they refused to come out and fix the problem on a system they had installed that would have still been under warranty if I was the original owner. I told them I wasn't going to pay so the charged an old credit card on file. STAY AWAY FROM THIS COMPANY !!!"

Chris D on April 2025

ADDTL ADDRESS: PO BOX 39, CHAMBERSBURG, PA 17201.

"THE WORST COMPANY I have ever delt with. The repair lasted for 17 days and then they refused to come out and fix the problem on a system they had installed that would have still been under warranty if I was the original owner. I told them I wasn't going to pay so the charged an old credit card on file. STAY AWAY FROM THIS COMPANY !!!"

Chris D on April 2025

Abma's Heating & Cooling

1.00(
1
)

Abma's Heating & Cooling

1.00(
1
)
Free onsite estimate

We are a one-stop destination for all your heating and cooling requirements. From installation and repair to maintenance and replacement, you can depend on us for all your heating and cooling needs. Offering everything under one roof makes it possible for you to depend on us for all your heating and cooling needs. We strive to exceed the expectations of our clients by working with integrity, competence, and objectivity, and want to emerge as the benchmark for heating and cooling services We specialize in everything from repair to new installation and are a one-stop service provider for all your heating and cooling needs.

"We had Abma come out to fix our AC unit this summer. They charged us over $400 to get it running. A week later the unit stopped working again. They came back out to look at it and said the unit needed to be replaced. Now, four months later, we get a $90 bill for the second visit. After talking to them, there was no compromise on the second charge. Horrible customer service."

Thomas N on November 2021

We are a one-stop destination for all your heating and cooling requirements. From installation and repair to maintenance and replacement, you can depend on us for all your heating and cooling needs. Offering everything under one roof makes it possible for you to depend on us for all your heating and cooling needs. We strive to exceed the expectations of our clients by working with integrity, competence, and objectivity, and want to emerge as the benchmark for heating and cooling services We specialize in everything from repair to new installation and are a one-stop service provider for all your heating and cooling needs.

"We had Abma come out to fix our AC unit this summer. They charged us over $400 to get it running. A week later the unit stopped working again. They came back out to look at it and said the unit needed to be replaced. Now, four months later, we get a $90 bill for the second visit. After talking to them, there was no compromise on the second charge. Horrible customer service."

Thomas N on November 2021

...
Showing 1-10 of 83
Heating and Air Conditioning questions, answered by experts

The best way to compare HVAC quotes is getting a few detailed quotes from local companies with good reputations. Then, go over the quotes line by line. Protect yourself by insisting on in-person estimates that include equipment manufacturer names, model numbers, SEER ratings, amounts and numbers of materials, details of warranties on equipment and labor, and other specifics. 

Knowing the exact equipment and materials is the only way that you can fairly compare quotes. Quotes that are much lower than others can be a sign that the company isn’t providing the best quality service or materials.

While it is possible to add Freon to your AC unit yourself, it is not recommended. In fact, the U.S. Environmental Protection Agency (EPA) prohibits the handling of Freon without a license. Freon is a dangerous gas that can cause irreversible damage to your AC or yourself if not installed correctly. It is worthwhile to hire a professional to add Freon to your AC.

A blockage in the ductwork may prevent air from flowing through the vent. If some rooms in your home are very hot or cold and another isn't, that can be a sign that a vent is blocked. Another sign of a blockage is a buildup of dirt or dust around the vent. In either case, a duct installer or cleaning service can investigate the issue for you and recommend a course of action.

Clean the filter regularly, inspect seals, and store the unit properly during the off-season.

There are a few factors to consider if you’re deciding between repairing and replacing your air conditioner. It’s probably worth fixing the AC unit if it’s less than 10 years old, you’re dealing with a one-off issue, and your warranty or maintenance plan will cover the repairs. On the other hand, if your air conditioner is dated, inefficient, out of warranty, and experiencing multiple problems, consider replacing it.

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.

See all articles

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"