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TRUSTED BY GARRISON, MD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Garrison, MD

*The Angi rating for Heating And Air Conditioning Service companies in Garrison, MD 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 Garrison, MD 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 February 17, 2026

Find Heating and air conditioning pros in Garrison

Avatar for Heating & Cooling Certified Mechanic
Heating & Cooling Certified Mechanic
5.0(
35
)

Serving Garrison, MD and surrounding areas

Approved

Super Service Award Winner

Free estimates

Emergency services offered

Warranties offered

"Michael advised me on my options concerning the HVAC system issue. Based on his expert recommendations, i made a decision. The work was completed very well! I will hire Heating & Cooling Certified Mechanic again for all HVAC services and recommended this company."
Installation
Installation
Installation
Installation
Installation

+20

31 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for GLM Mechanical Services, Inc.
GLM Mechanical Services, Inc.
4.6(
66
)

Serving Garrison, MD and surrounding areas

Approved

In business since 1978

Free estimates

Warranties offered

"The GLM team is great. We used them for a new HVAC and water heater. From the quote process to staying communicative with me, they were always there for us. They were able to beat the nearest competitors price by almost $7000 without any difference in quality of materials, work or customer service. They arrived on time and earlier and finished promptly while fully respecting our property and neighbors. They definitely undersold and over deliver. 1000% recommend them and will use them for our intermittent services."
Goodman Heatpump
Goodman Heatpump
Removal of Old Furnace
Response time4 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Pure Air HVAC, LLC
Pure Air HVAC, LLC
4.8(
73
)

Serving Garrison, MD and surrounding areas

Approved

In business since 2009

Free estimates

Credit card accepted

"Really fast and professional service when our HVAC broke in the peak of summer. Had it up and running in almost no time. My advice to first time homeowners like me in these cases is to always make sure you know what repairs and actions are being done. It'll help in regards to money."
Carrier Infinity 16 SEER Heat Pump
Masters license
Carrier Infinity Series 16 SEER Heat Pump
Carrier 90% Propane Gas Furnace
Carrier Heat Pumps 16 SEER

+8

Response time5 hrs
1 neighbors recently requested a quote
Recommended by100%of homeowners
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Avatar for Bamford Plumbing and Heating Inc
Bamford Plumbing and Heating Inc
4.8(
65
)

Serving Garrison, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

"Doug at Bamford came on time and had the water heater installed without any problems. Smooth service from start to finish.
"
Do you know if your sump is still working? We also have sump pumps avialable to protect you from power outages. That’s right no power no problem forget about the “battery back up” sump pumps if you have municipal water supply this is the way to go call today for details !
Tankless
Power Vent
Gas and Electric
Tree roots giving you problems with your drains? Have us come out today and try a Rootx root treatment !

+2

4 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for VICTORY HVAC LLC
VICTORY HVAC LLC
5.0(
17
)

Serving Garrison, MD and surrounding areas

Approved

In business since 2025

Emergency services offered

Small jobs welcome

"Yossi takes pride in the work he does. He is my hvac install / repair guy for all my apartments and my commercial building. He is very skilled and confident; he can solve any problem. His prices are fair."
Setting air handler
duct work
Return air box
Supply ductwork
air handler set up

+23

2 neighbors recently requested a quote
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Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
4.5(
949
)

Serving Garrison, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"HVAC replacement was reasonable and installation was timely"
NEW INSTALL
CLEANING COILS
CLEANING COILS
CLEANING COILS
CLEANING COILS

+118

Response time4 hrs
55 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
5.0(
19
)

Serving Garrison, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"I recently had a HVAC and water heater installation by Carroll Mechanical, Cris Lopez and his team. They were very respectful of my home and professional throughout the install. I am grateful and appreciative of working with the owner on deciding the HVAC unit to be installed. I found him to be the consummate professional, a person of integrity, transparent, responsive to my questions and willing to work with me to gain my business. I highly recommend Carroll Mechanical."
Trane Heat Pump
Carrier AC + Furnace
Response time5 hrs
69 neighbors recently requested a quote
Recommended by23%of homeowners
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Avatar for Michael Bonsby HVAC, Plumbing & Electrical MD
Michael Bonsby HVAC, Plumbing & Electrical MD
4.2(
133
)

Serving Garrison, MD and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I received six estimates for replacing my air conditioning system. Of the six, four came in at a reasonable price including the estimate from the Michael Bonsby Company. Three of the four estimators made a good impression but the one who impressed me the most was David Lux of Michael Bonsby. He spent the most time, provided the most information, and fully answered all of my questions in all of my contacts with him prior to signing the contract. Even after I signed the contract, had the system installed, and made final payment, David Lux was still very prompt in answering my inquiries. So far I am very happy with the air conditioning system installed by and I would highly recommend the Michael Bonsby Company if you ever need to replace your air conditioning system."
Routine Maintenance
Maintenance
Mitsubish Ductless System
Outside Mitsubishi Unit
Carrier

+3

42 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Carroll Mechanical, Inc.
Carroll Mechanical, Inc.
4.7(
22
)

Serving Garrison, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"I recently had a HVAC and water heater installation by Carroll Mechanical, Cris Lopez and his team. They were very respectful of my home and professional throughout the install. I am grateful and appreciative of working with the owner on deciding the HVAC unit to be installed. I found him to be the consummate professional, a person of integrity, transparent, responsive to my questions and willing to work with me to gain my business. I highly recommend Carroll Mechanical."
Ins
Ins
Response time10 hrs
140 neighbors recently requested a quote
Recommended by16%of homeowners
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Avatar for Paramount Heating & Air Conditioning, LLC
Paramount Heating & Air Conditioning, LLC
4.7(
117
)

Serving Garrison, MD and surrounding areas

Approved

In business since 2008

Emergency services offered

Warranties offered

"They were friendly and professional. I was offered several options. When the installation was complete, I was shown the new furnace, the new style of filter, and how to operate my new thermostat."
Recommended by100%of homeowners
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...
Showing 1-10 of 475
Heating and Air Conditioning questions, answered by experts

Here’s the cost formula to find out how much it’ll cost you to run a window air conditioner in your home:  Watts * (hours used) / 1,000 * (Local kWh) = daily cost of running a window unit. If you need help calculating the cost of running your window AC unit, consult an AC repair or installation pro for an accurate estimate.

Replacing both an AC and a furnace takes a full day on average, ranging from eight to 12 hours. The process involves removing the old units, installing the new ones, and ensuring all connections are properly made. If both systems are being replaced simultaneously, it can take longer than installing a furnace alone, so plan accordingly.

There are a few things you can do to make your AC repair technician’s job easier and your home more comfortable while you wait for AC repair:

  • Cut back trees, shrubs, and weeds around the outdoor compressor 

  • Clear a pathway inside and outside to your AC components

  • Set up a ladder for attic access if necessary

  • Pull your window AC out of the window and place in an easily accessible spot

  • Supplement with fans and open windows to help keep your house comfortable

It depends on the type of AC unit and the extent of the mold growth. For example, if you have a small amount of mold in your central air conditioner, it’s worth cleaning it to protect your HVAC system and your health. In situations like these, you can often remove the mold yourself in a couple of hours. On the other hand, if you have a portable AC unit with a severe mold problem, it makes more sense to buy a new one. On average, replacing a portable AC unit costs $100 to $500.

No, it isn’t necessarily bad to turn your AC on and off frequently—contrary to popular belief. Even if you stop and start your AC throughout the day, it won’t use as much energy as it would if you ran it nonstop. 

If you’re concerned about your power consumption and energy costs, there are a few simple ways to use your AC more efficiently. Regularly cleaning the filters, scheduling routine maintenance, and using a programmable thermostat are all great choices.

The Garrison, MD 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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