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Avatar for Holtzople Heating, Air Conditioning, & Electrical Services
Holtzople Heating, Air Conditioning, & Electrical Services
4.9(
210
)

Serving Keymar, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Emergency services offered

"Happy Holidays all! Please use my Holtzople (H) review to help you address your HVAC needs! Last summer, my Trane AC unit failed. Corey W (H) was the tech that came out to the house and troubleshooted/resolved the problem (leaking refrigerant). He also advised on probability of future repairs. Sadly, the unit performed well for only a short time before failing. It was time to consider my options. Repairs were becoming more frequent and costly. Tyler (H System Designer) visited and walked around my house inspecting my current HVAC system. We discussed repairing or replacing my ailing AC unit. He recommended replacing with a split ductless system and emailed a quote for 1. Enhanced Mitsubishi hyper heat mini split system (system) 2. Favorable financing options - low interest rates and affordable monthly payments. The install took a week. H’s crew arrived each morning, respected my property, and worked as a team to carefully install the new system. With gratitude, John"
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+47

Response time1 day
Response rate100%
12 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
293
)

Serving Keymar, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"GAC services was able to come out for a same day trouble shooting appointment. Jim S arrived on time and was very courteous and professional. He was able to quickly identify the problem with the registers and dampers and able to get warm air flowing to the otherwise very cold areas of the house. In addition, Jim was able to recommend some additional services that would help me achieve the desired evenness of temperature such as an additional return and humidifier for the home. Great experienced master certified technician!"
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20 neighbors recently requested a quote
Recommended by94%of homeowners
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

"Moises came out the same day that I requested an estimate for the installation of a UV light whole house air purification system, and to chemically clean my AC coil. I had another estimate but Moises gave me a better deal. He also recommended getting a cover for my AC unit for the winter, when he opened it up it was full of leaves and debris. I am very satisfied with the work that was done and would highly recommend MSR."
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+8

Response time4 hrs
Response rate99%
1 neighbors recently requested a quote
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

"Best Air Quality and Restoration did a spectacular job! I can't say enough about the employees. They did an outstanding job! They were punctual,polite and followed social distancing protocols.They assessed the home and cleaned the air ducts quickly and efficiently. I am very pleased with their service and highly recommended this company. I purchased a new home and had them come clean the ducts to improve the homes environment. They showed me before and after pictures and I noticed a difference right away"
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+50

Response time10 hrs
Recommended by93%of homeowners
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

"The replacement of air conditioning system was done smoothly. The salesperson - Adam - explained me all pros and cons of various options, and we agreed on the option which is cost efficient and took into account all my preferences. The installers - Shane and Shon - are nice guys, worked efficiently and have done the job in half a day. They even fixed some part of my heating system free of charge. Overall, very positive impression, highly recommend."
Response time2 days
47 neighbors recently requested a quote
Recommended by99%of homeowners
Markool Heating & Cooling, LLC
4.7(
21
)

Serving Keymar, MD and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Turned on the AC this morning to find out was blowing hot air, called up a few different companies who wanted minimum 100 bucks to come out blah blah blah, called up Markool and got connected with a technician. The technician helped me troubleshoot the issue, and have me a quick fix that will last until they make it out tomorrow to do the permanent fix. I'll be using them for all my AC needs in the future!"
Response time7 hrs
4 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for ARS of Maryland
ARS of Maryland
4.1(
176
)

Serving Keymar, MD and surrounding areas

Approved (Corporate)

In business since 1945

Free estimates

Emergency services offered

"The sales rep was very attentive when coming over and designing a solution to our heat and air needs. We were able to get a large team of workers here and knocked out an entire house install in one day. Some trash and miscellaneous items were left in our yard. When we needed additional items from the sales rep he will respond back saying he will take care of it but still has not. I have brought this up to him over 4 times and I still get nothing. The price seemed pretty high, and we had to shop the price around some but the company came with good financing options and some guarantees that others could not. The mini-split units work great."
New System Installation
1123 neighbors recently requested a quote
Recommended by73%of homeowners
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Air Conditioning questions, answered by experts

Yes, you can put an AC unit on the roof of your home or commercial building. For proper installation, you’ll need to ensure the roof surface is flat, it’s accessible for maintenance and cleaning, and an AC installation pro agreed that your home is a candidate for package units. Don’t forget to consider the climate in your area, as homes that experience frequent tropical storms or hurricanes may not benefit from this type of system.

It depends on the size of the space you’re cooling down. If you’re looking for the most affordable way to cool an entire house over a long period of time, then central air will be more cost-effective. But when it comes to cooling down a couple of rooms or one floor, a window unit may be the cheaper option, with both a lower cost to install and less energy used to run.

One of the fastest ways to unfreeze an AC unit is to turn off the unit and, if it’s warm outside, use the fan-only mode to help blow warmer air through the unit to speed up the defrosting process. While it may be tempting to use a hair dryer to defrost the air conditioner, that high heat can damage the coils.

After defrosting, if you can safely solve the issue with a fix like changing the filter, go ahead and do so. Otherwise, call in a pro before turning your AC back on.

AC leaks are common, and an HVAC pro can usually fix them. You may be able to resolve some leaks on your own, but a professional HVAC technician should handle most AC leak repair. If left ignored, an AC leak could cause serious damage to your system or leave you with expensive water damage, usually leading to more costly repairs or replacements.

It all depends on the unit’s SEER (seasonal energy efficiency ratio). A higher SEER rating means better efficiency and lower costs for your energy bills. 

Take a look at the product you’re considering purchasing and compare it to other models to decide which one is affordable upfront but will keep your energy costs low over time.

The Keymar, MD homeowners’ guide to air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.