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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon133
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Saint Thomas

Avatar for Holtzople Heating, Air Conditioning, & Electrical Services

Holtzople Heating, Air Conditioning, & Electrical Services

4.94(
177
)
Approved Pro

Holtzople Heating, Air Conditioning, & Electrical Services

4.94(
177
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
24 years of experience

Holtzople is a leading HVAC company in Frederick, Carroll, and Washington counties in Maryland, as well as Adams and small parts of Franklin & York counties in Pennsylvania, featuring all the top brands in the Heating and Cooling industry, such as Trane, Bryant, Lennox, Carrier, ClimateMaster, WaterFurnace, and more. We recently added an electrical department to our services, making us your one-stop shop for HVAC and electrical needs. Quality is Not Expensive, It's Priceless!

"Doug the technician did a great job replacing a broken switch in the kitchen. He was friendly, neat, well knowledge in what was needed to be done. We will use their services again when needed."

Charles S on January 2026

Holtzople is a leading HVAC company in Frederick, Carroll, and Washington counties in Maryland, as well as Adams and small parts of Franklin & York counties in Pennsylvania, featuring all the top brands in the Heating and Cooling industry, such as Trane, Bryant, Lennox, Carrier, ClimateMaster, WaterFurnace, and more. We recently added an electrical department to our services, making us your one-stop shop for HVAC and electrical needs. Quality is Not Expensive, It's Priceless!

"Doug the technician did a great job replacing a broken switch in the kitchen. He was friendly, neat, well knowledge in what was needed to be done. We will use their services again when needed."

Charles S on January 2026


"We bought a new construction and McCrea installed the HVAC. Home inspection identified the heat pump was not working in Oct. 2020. McCrea identified it was due to leaking refrigerants and promise fixed the issue. Our electric bill was extremely high the following two months and the heat pump was not cooling in Spring 2021. McCrea sent technician and again repaired the system. Bought their maintenance plan. We had 4+ repairs plus regular tune up in the past two years. Last week the heat pump stopped cooling again. We are out of labor warranty and charge us with $89 diagnostic cost after membership discount. It took three days for them to send someone to check while we suffering 90F in our house. They identified the compressor dead and need replacement. They charge $1900 for labor after membership discount. Most likely cause of the compressor failure is "suicide" with assistance. Low refrigerant at beginning and over change in later repairs likely contributed the short life."

Wei X on July 2023

McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"

"We bought a new construction and McCrea installed the HVAC. Home inspection identified the heat pump was not working in Oct. 2020. McCrea identified it was due to leaking refrigerants and promise fixed the issue. Our electric bill was extremely high the following two months and the heat pump was not cooling in Spring 2021. McCrea sent technician and again repaired the system. Bought their maintenance plan. We had 4+ repairs plus regular tune up in the past two years. Last week the heat pump stopped cooling again. We are out of labor warranty and charge us with $89 diagnostic cost after membership discount. It took three days for them to send someone to check while we suffering 90F in our house. They identified the compressor dead and need replacement. They charge $1900 for labor after membership discount. Most likely cause of the compressor failure is "suicide" with assistance. Low refrigerant at beginning and over change in later repairs likely contributed the short life."

Wei X on July 2023


Avatar for 717 Home Comfort LLC

717 Home Comfort LLC

4.86(
7
)
Approved Pro

717 Home Comfort LLC

4.86(
7
)
Approved Pro
1 years of experience
Free onsite estimate

With over 10 years experience in the field, 717 Home Comfort 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.

"Derrick From 717 Home Comfort arrived within the time he said he would. He got right to work on my furnace and within 20 to 30 mins fixed and had my system running, I had tried two different Companies in the past who charged me but could not solve the issue. 717 Home Comfort has earned both my trust as well as my Business. "

Eric B on November 2025

With over 10 years experience in the field, 717 Home Comfort 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.

"Derrick From 717 Home Comfort arrived within the time he said he would. He got right to work on my furnace and within 20 to 30 mins fixed and had my system running, I had tried two different Companies in the past who charged me but could not solve the issue. 717 Home Comfort has earned both my trust as well as my Business. "

Eric B on November 2025


Avatar for Harrell's Services

Harrell's Services

5.00(
4
)
Approved Pro

Harrell's Services

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
37 years of experience

We are a small family owned Heating, Ventilation, and Air Conditioning (HVAC) company located in Sharpsburg, MD. The business was started in 1989 under the name of RW Harrell's Pump Service Inc. when Diane Harrell and Ronnie Harrell purchased a well pump and water system business from a gentleman that was retiring. Ronnie had worked in the HVAC field from the time he had graduated from high school so it was natural to add HVAC to the services that this new company would offer. Ronnie and Diane built the company by word of mouth and continue to grow the company in this manner. Additional DBA - Harrell's Services. Additional fax - 928-492-8004

We are a small family owned Heating, Ventilation, and Air Conditioning (HVAC) company located in Sharpsburg, MD. The business was started in 1989 under the name of RW Harrell's Pump Service Inc. when Diane Harrell and Ronnie Harrell purchased a well pump and water system business from a gentleman that was retiring. Ronnie had worked in the HVAC field from the time he had graduated from high school so it was natural to add HVAC to the services that this new company would offer. Ronnie and Diane built the company by word of mouth and continue to grow the company in this manner. Additional DBA - Harrell's Services. Additional fax - 928-492-8004


Avatar for Uncle A's HVAC

Uncle A's HVAC

5.00(
5
)
Approved Pro

Uncle A's HVAC

5.00(
5
)
Approved Pro
38 years of experience
Free onsite estimate

With over 37 years of excellent customer satisfaction in the community, we are your first choice for all your HVAC needs. We are locally owned and operated and our professionals are always prompt, clean and friendly every step of the way. Call us today for a free estimate!

"Heater installed by another contractor broke in the winter. Uncle A's came out the next day and got it fixed. Anthony is my new regular HVAC contractor. Shows up when he says he will and keeps at it until the job is done. What more can you ask? "

Josh L on January 2026

With over 37 years of excellent customer satisfaction in the community, we are your first choice for all your HVAC needs. We are locally owned and operated and our professionals are always prompt, clean and friendly every step of the way. Call us today for a free estimate!

"Heater installed by another contractor broke in the winter. Uncle A's came out the next day and got it fixed. Anthony is my new regular HVAC contractor. Shows up when he says he will and keeps at it until the job is done. What more can you ask? "

Josh L on January 2026


Avatar for Clear Ridge Mechanical, LLC

Clear Ridge Mechanical, LLC

5.00(
1
)
Approved Pro

Clear Ridge Mechanical, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

We are a local Refrigeration, HVAC and mechanical service contractor servicing central PA and surrounding areas. Residential, industrial and commercial work accepted. No job is too big or too small! We take pride in the work we do and strive for customer satisfaction. 12 years experience in the trade. Fully insured and dedicated to delivering every time no matter the project. Give us a call today, I guarantee you won’t be disappointed.

"We had a mini split air conditioner with a heat pump installed, and the work was finished in 1 day. Excellent service and good rates!"

Daniel D on September 2022

We are a local Refrigeration, HVAC and mechanical service contractor servicing central PA and surrounding areas. Residential, industrial and commercial work accepted. No job is too big or too small! We take pride in the work we do and strive for customer satisfaction. 12 years experience in the trade. Fully insured and dedicated to delivering every time no matter the project. Give us a call today, I guarantee you won’t be disappointed.

"We had a mini split air conditioner with a heat pump installed, and the work was finished in 1 day. Excellent service and good rates!"

Daniel D on September 2022


"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021

United Freight of America is your all inclusive transport solution. CONTACT US FOR A QUOTE. please include pick up and Drop off locations and vehicle information

"Excellent, no problems. My car was new the first year I used the service and there has never been any damage during the transports. The men picking up and delivering the car have always been pleasant and cooperative. Both Ely and Guy at United Transport has been highly responsive to my needs. I would highly recommend this company."

CLAUDIA H on October 2021


Avatar for Ramer Mechanical LLC

Ramer Mechanical LLC

4.91(
78
)

Ramer Mechanical LLC

4.91(
78
)
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

Ramer Mechanical's mission is to provide the highest quality installations and service. We believe that the mechanical systems in your home or business should not only function properly, they should also keep the occupants comfortable and they should look good! We use premium products and equipment in our installations in an effort to provide our customers with greater value over the life of the system. We cover the entire spectrum of HVAC installations and service, with a particular focus on Ductless Minisplit Heat Pumps and Hydronic systems ( Boilers, Radiant floor heating, Radiators, Hot Water baseboard ). Each HVAC installation starts with accessing the customer's needs and comfort concerns, followed by a building heat load analysis. We use ACCA approved software to do our heat load and analysis and properly size the heating and cooling equipment. This is very important for the longevity and efficiency of the system. It also a critical step to provide comfort for the building's occupant's. Comfort is far more complex than simply heating or cooling a space! Selecting the proper equipment and sizing it correctly is essential to this goal. We also provide Electrical, Plumbing, and Refrigeration services for both residential and light commercial markets. Call us today and see if we can help you with your project! PA registration number. PA001348

"Simply the best! Harvey has sold and serviced all of our HVAC, generator, water heater, electrical, lighting, and plumbing equipment for decades now. He is completely proficient, always responsive, and 100% reliable. He does it all well."

Craig C on July 2023

Ramer Mechanical's mission is to provide the highest quality installations and service. We believe that the mechanical systems in your home or business should not only function properly, they should also keep the occupants comfortable and they should look good! We use premium products and equipment in our installations in an effort to provide our customers with greater value over the life of the system. We cover the entire spectrum of HVAC installations and service, with a particular focus on Ductless Minisplit Heat Pumps and Hydronic systems ( Boilers, Radiant floor heating, Radiators, Hot Water baseboard ). Each HVAC installation starts with accessing the customer's needs and comfort concerns, followed by a building heat load analysis. We use ACCA approved software to do our heat load and analysis and properly size the heating and cooling equipment. This is very important for the longevity and efficiency of the system. It also a critical step to provide comfort for the building's occupant's. Comfort is far more complex than simply heating or cooling a space! Selecting the proper equipment and sizing it correctly is essential to this goal. We also provide Electrical, Plumbing, and Refrigeration services for both residential and light commercial markets. Call us today and see if we can help you with your project! PA registration number. PA001348

"Simply the best! Harvey has sold and serviced all of our HVAC, generator, water heater, electrical, lighting, and plumbing equipment for decades now. He is completely proficient, always responsive, and 100% reliable. He does it all well."

Craig C on July 2023


Avatar for AppliancePartsPros.com

AppliancePartsPros.com

4.73(
287
)

AppliancePartsPros.com

4.73(
287
)
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025

Since 1999, we've helped millions of do-it-yourselfers save money and fix their broken appliances quickly by providing quality appliance parts and free repair advice. We are only an online appliance parts retailer that offers a 365 day warranty and fast shipping. We also offer technical advice and diagnosis totally free 6 days a week. If you are interested in repairing your own appliance, please call us at 1-877-477-7278 or click live chat on our web site. We will help diagnose the problem and provide you with all the necessary information for the repair free of charge. It's better with the Pros!™ Avoid costly service calls - visit us at http://www.appliancepartspros.com

"Beware of shipping issues with this company. Ordered an ice maker installation kit on 10/10/25. Shipping was due no later than 10/20 according to company and FedEx tracking. FedEx tracking showed the package at their facility for 8 days without moving beginning on 10/15. Called FedEx 3 times. Each time they said they cannot find package and I have to contact shipper. Shipper has to make a claim, they will not mark it as lost. Called Appliance Parts Pros twice. Each time they say FedEx has to mark package lost before they will do anything. They also state they have to wait 14 days from them before doing anything because of their contract with FedEx. I don't care about their contract, I want what was ordered and paid for. Just going in circles with them and FedEX. If they shipped after 14 days it would be 22 days from that point, 32 days from the date of order if they shipped it that day. There was a deadline for installing this part before tenants arrive. They did not care, would not m"

Ron R on October 2025


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Heating and Air Conditioning questions, answered by experts

AC repairs cost $350 on average, but the total can vary from $100 for a refrigerant recharge to over $3,000 to replace a compressor. The cost will depend on the extent of the repair and what type of AC you have, plus whether your HVAC system is under warranty.

Yes. It's not just AC filters that get dirty. Ducts can accumulate dust and dirt quickly. Insects and animals can also get into duct systems, creating many problems. Dirt build-up and unwanted guests can constrict the airflow and cause rooms not to cool evenly. You might also see higher energy bills because they're not working as efficiently.

If you’re planning an AC replacement, choosing an AC with a higher SEER rating may save you money in the long run. Tax credits could cover as much as 30% of the job, and you’ll notice smaller utility bills (particularly if you live in a hot climate where you need to constantly run the AC). Generally, you can expect to pay between $350 and $1,500 for each SEER rating increase. Weigh the cost against your typical utility bill to figure out what’s worth it to you.

To lower humidity quickly, run a dehumidifier or your home's air conditioner or turn on exhaust fans to extract moisture. These methods can quickly and effectively bring your home's humidity levels to a comfortable condition. However, you should consistently practice humidity-reducing tasks to maintain proper indoor humidity levels.

Condensation forms when warmer, outside air combines with cooler air in your ductwork. This can happen when there are leaks in your air ducts, your HVAC system has a dirty air filter, or there’s a lack of insulation around the ducts. To prevent it from happening, replace your HVAC filters as directed. Also, once every five years, hire a local air duct cleaner to clean and inspect them.

The Saint Thomas, 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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