Top-rated heating and air conditioning pros.

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

There are 4 highly-rated local heating and air conditioning pros.

TRUSTED BY SAINT MARYS, PA HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon50
    Verified heating and air conditioning services reviews

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

*The Angi rating for Heating And Air Conditioning Service companies in Saint Marys, 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 Saint Marys, 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 October 21, 2025

Find Heating and air conditioning pros in Saint Marys

Avatar for Gary & Sons, Inc.

Gary & Sons, Inc.

482 Beachtree Road
4.83(
7
)
•Approved Pro

Gary & Sons, Inc.

482 Beachtree Road
4.83(
7
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
47 years of experience

Gary and Sons Inc opened for business in 1978 as Gary's Dehydrator and Stoves. Soon their reputation as wood and coal stove specialists led them into the wood and coal central heating business. As their experience continued to increase, Gary and Sons Inc. quickly became a leading heating and cooling installation specialist, encompassing all fuel types. Today the heating and cooling business is still the keystone of Gary and Sons Inc. but Gary and Sons continued dedication to their customers needs has given birth to a wide range of new products and services such as, annual maintenance agreements and 24 hour emergency service, zero clearance gas and wood fireplaces, Keystoker automatic fed Anthracite coal stoves, furnaces and boilers, as well as vented and vent free gas logs. Additionally, Gary's offers a full range of gas unit heaters, an expanded service and maintenance department and Gary and Sons high-powered duct cleaning service.

"Right on time and very professional"

Alma C on June 2024

Gary and Sons Inc opened for business in 1978 as Gary's Dehydrator and Stoves. Soon their reputation as wood and coal stove specialists led them into the wood and coal central heating business. As their experience continued to increase, Gary and Sons Inc. quickly became a leading heating and cooling installation specialist, encompassing all fuel types. Today the heating and cooling business is still the keystone of Gary and Sons Inc. but Gary and Sons continued dedication to their customers needs has given birth to a wide range of new products and services such as, annual maintenance agreements and 24 hour emergency service, zero clearance gas and wood fireplaces, Keystoker automatic fed Anthracite coal stoves, furnaces and boilers, as well as vented and vent free gas logs. Additionally, Gary's offers a full range of gas unit heaters, an expanded service and maintenance department and Gary and Sons high-powered duct cleaning service.

"Right on time and very professional"

Alma C on June 2024

Maglioshvac

No reviews yet

Maglioshvac

No reviews yet

Heating and Air Conditioning maintenance, Repair, and Installation. Minor electrical and plumbing maintenance and repair. Water heater repair and installation.

Heating and Air Conditioning maintenance, Repair, and Installation. Minor electrical and plumbing maintenance and repair. Water heater repair and installation.

Spinlisting LLC

7208 W Sand Lake Rd
No reviews yet

Spinlisting LLC

7208 W Sand Lake Rd
No reviews yet
7 years of experience

We are a Home Service Company if you need Handyman service, Home Improvement, Painting, painter, Drywall, Flooring, plumbing, Electrical, Garage Repair. Roofing, House Cleaning. Tree Removal, Landscaping, AC Repair, Heating Service, we can help you with all Your Home Improvement needs and more Check out our website for all your Home Service Needs

We are a Home Service Company if you need Handyman service, Home Improvement, Painting, painter, Drywall, Flooring, plumbing, Electrical, Garage Repair. Roofing, House Cleaning. Tree Removal, Landscaping, AC Repair, Heating Service, we can help you with all Your Home Improvement needs and more Check out our website for all your Home Service Needs

Avatar for Neli Virtual Appliance Repair

Neli Virtual Appliance Repair

143 Charlotte Ave
4.29(
575
)

Neli Virtual Appliance Repair

143 Charlotte Ave
4.29(
575
)
Customers say: Super punctual
32694 local quotes requested

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Great! Punctual easy to work with cleaned up area when done"

Kay J on September 2025

NEW! Appliance Consultation – Just $35 Get expert advice before you spend on repairs or replacements. A Neli technician will evaluate your issue and help you decide if your appliance can be fixed—or if it’s time for a new one. Virtual Appliance Diagnosis and Repair - Just $45 Service Description: Diagnose or repair your appliance virtually—no need for anyone to enter your home. Neli’s certified technicians guide you step-by-step via secure video chat. How It Works: Book online at nelihome.com or call 833-876-0900 Connect with a tech through our video platform Diagnose or fix the issue in real time Get expert advice and confidence in your next steps What’s Included: Real-time video guidance from a certified technician Diagnosis of the issue OR full repair (when possible) Step-by-step guidance using your smartphone or tablet Safe, contact-free service - no one in your home Flexible scheduling—appointments available daily Perfect For: Appliance fixes HVAC troubleshooting DIY-savvy homeowners Saving time and money on service calls

"Great! Punctual easy to work with cleaned up area when done"

Kay J on September 2025

TD ENERGY EXPERTS, LLC

200 Center St
No reviews yet

TD ENERGY EXPERTS, LLC

200 Center St
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

Unknown
No reviews yet

Gater Mechanical LLC

Unknown
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

American Home Guard Home Warranty - PA

1515 Market St
5.00(
1
)

American Home Guard Home Warranty - PA

1515 Market St
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

891 Lincoln Way W
3.50(
8
)

M C Plum Inc Plumbing Heating & AC

891 Lincoln Way W
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

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Heating and Air Conditioning questions, answered by experts

When the capacitor fails, the AC unit can’t operate at all. The most common sign is the thermostat forcing the blower to turn on, but it only circulates room-temperature air. The AC unit also won’t make any noise or indication that it’s on. Sometimes, the compressor might hum as it attempts to work, but without any results.

Before a full shutdown, a faulty capacitor can cause your AC to struggle while turning on. The unit might also shut down in the middle of a cooling cycle.

Choosing a unit with higher BTUs can use more electricity if the BTUs are more than what’s necessary for your room size. However, choosing an AC with BTUs that match the size of your room or house, your unit will cool your space efficiently. On the flip side, choosing a system with not enough BTUs can cause the system to work harder to try to cool the space, leading to more electricity consumption and higher energy bills.

If you have the luxury of waiting a bit to replace your unit, they can drop in price depending on the time of year. Air conditioning units often go on sale in the fall after they’re not as in demand when the temps drop outside. Same with furnaces—prices drop in the spring when it starts getting warmer.

Yes, technicians check refrigerant levels, loop performance, and system calibration for peak efficiency.

Some of the signs of HVAC issues include rising energy bills, rooms not cooling or heating properly, loud noises when in operation, and signs of condensation. To illustrate, if you’re wondering how to stop condensation on air vents, you’ll need to have your HVAC inspected. 

The Saint Marys, 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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