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4.5

(77 reviews)

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

*The Angi rating for Heating And Air Conditioning Service companies in Keymar, 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 Keymar, 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 May 05, 2025

Find Heating and air conditioning pros in Keymar

Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
209
)

Serving Keymar, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Kevin arrived today for the Spring Preventive Maintenance service on our HVAC system that we purchased a few years ago from Holtzople Heating & Air Conditioning. As always, we received an email and a phone call to let us know when the HVAC technician would be arriving. The Holtzople HVAC technicians are always very professional, clean, thorough, and polite and friendly. They are always willing to answer any questions we have, and their expertise and experience are evident in the excellent service they provide."
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+47

Response time12 hrs
9 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
369
)

Serving Keymar, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Bruce gave me some great suggestions on getting my house's electric updated and making it safer. I'm happy I signed up for annual inspections with Tim Kyle Electric. Bruce was on time and very thorough. He called ahead and the company followed up the next day. I am happy with the electric service I have received from them in the past. I recommend Bruce and Tim Kyle Electric."
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+17

Response time1 day
Response rate95%
14 neighbors recently requested a quote
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Avatar for GAC Services
GAC Services
4.8(
292
)

Serving Keymar, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"We got five different work proposals for our HVAC replacement. The person who came to our house was very technically knowledgable. He gave us his cell phone number and gave us plenty of his time answering our questions. I think this contractor would have done an excellent job at a good price."
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61 neighbors recently requested a quote
Recommended by94%of homeowners
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Avatar for Bamford Plumbing and Heating Inc
Bamford Plumbing and Heating Inc
4.8(
65
)

Serving Keymar, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Emergency services offered

Warranties offered

**SPECIALIZING IN BOILER REPAIR AND REPLACEMENT**\n** WE OFFER 24/7 EMERGENCY SERVICE** Bamford Plumbing & Heating Inc. has been providing excellent customer service since 2009. We are a family owned and operated company with over ten years of experience in the plumbing and heating industry. We are licensed and insured in the State of Maryland. We offer 24 hour emergency service and free estimates on new work.

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

3 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for MSR Heating and Cooling, LLC
MSR Heating and Cooling, LLC
4.8(
33
)

Serving Keymar, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I reached out to Angi’s to find a HVAC company to help with my AC that was blowing hot air in the summer. I got super lucky when I found MSR Heating and Cooling. They arrived on time and assessed my situation. I appreciated the time they took to explain the issue in ways I understood as well as recommend the best option for me. The estimate quote was fair and there were no surprise expenses to repair my unit. I can’t thank the owner, Moises enough for a job well done. His professionalism, knowledge and skills are reflected in the quality of work performed. I would highly recommend this company for your next repair."
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+8

Response time4 hrs
Response rate99%
2 neighbors recently requested a quote
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Avatar for Blue Dot
Blue Dot
4.1(
345
)

Serving Keymar, MD and surrounding areas

Approved (Corporate)

In business since 1982

Free estimates

Emergency services offered

"Anthony Flint HVAC technician was very professional, found the probably and fixed it in timely fashion Excellent service!"
System Installation
560 neighbors recently requested a quote
Recommended by72%of homeowners
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Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
4.8(
236
)

Serving Keymar, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Timely, efficient, response. Identified a minor mold issue and applied appropriate treatment. Poor quality filters on equipment left a film of fine dust everywhere near a vent. Recommend upgrading vacuum filters to finer screen."
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+50

Response time1 day
Recommended by93%of homeowners
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Avatar for Weather Masters Corporation
Weather Masters Corporation
4.7(
124
)

Serving Keymar, MD and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"Crew did an excellent job installing new AC unit. The job was completed quickly and professionally. Would definitely recommend them for HVAC work."
Response time2 days
42 neighbors recently requested a quote
Recommended by99%of homeowners
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Heating and Air Conditioning questions, answered by experts

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

You should plan to change your AC unit's filter every one to three months, depending on the manufacturer's recommendations. You should also clean the coils at least once per year, but if you have pets or someone in your household has allergies, you might need to clean them more often. Fortunately, many pros will clean the coils and change the filter for you during an inspection, which you should schedule once or twice per year.

The standard rule for return duct sizing is that the return vent should be the same size or larger than the supply vent. This will ensure balanced airflow in your home and reduce strain on your HVAC system.

HVAC companies may charge an hourly rate or a flat fee. Hourly rates typically range from $100 to $250 per hour, with an average around $175. Some contractors charge a flat fee for specific services, such as an inspection, which can cost between $150 and $500. The total cost of an HVAC service is influenced by several factors, including: the urgency of the service (emergency repairs after hours or on holidays cost more), the time of year, the type, size, and brand of your HVAC system, the specific repair needed, and whether you have a service contract.

Yes, you can potentially save $60 to $200 by handling your own air conditioner capacitor installation. However, capacitor replacement comes with the risk of electric shock. Only attempt this if you have the knowledge and protective gear to carry it out safely. Otherwise, we recommend hiring an HVAC pro with the experience to properly diagnose the issue and avoid damaging other parts of your AC unit.

The Keymar, 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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