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Markool Heating & Cooling

Markool Heating & Cooling

Founded in 2016, Markool Heating & Cooling is the name to trust when it comes to heating and air conditioning in Frederick, MD, and the surrounding areas. We have extensive experience with a wide range of both residential and commercial heating, air conditioning, and air quality services. If you're interested in maintaining or improving the comfort and efficiency you enjoy indoors, we're the right team for the job. Contact us today to schedule your next HVAC appointment.

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Mark B.

Review of Kieffer's Appliances (Trade Partners) by

· Lancaster

Kieffer's is always a pleasure to work with but I especially want to recognize Dustin Stehr. Dustin is not just another appliance sales rep he is also a Certified Kitchen Designer. I can confidently send my clients to Dustin and know that he will review our kitchen designs and offer our clients the... more

Ladd K.

Review of Cunningham's Rug Cleaning by

· Annapolis

Very helpful. I cannot wait to use tile cleaning service.

Phillip V.

Review of Kohler Bathroom Design Service by

· Fairfax Station

What a great experience we had with our designer, Patti. Going in, we had good ideas, we thought but, Patti helped us visualize them and turn them into a much better design. In the end, we were able to get a photo-realistic design of our new bathroom as if it were already completed. Highly recommend... more

Bruce H.

Review of Morgan Exteriors, Inc. by

· Baltimore

I wouldn't hesitate to use them again.


is it ok to put up foam board sheeting on the exterior of the house with 1 inch capped nails
Aug 15, 2014
In a word...yes. As Katie mentioned, you need an appropriate length fastener and a cap nail is ideal. What you haven't mentioned is what the wall depth is as well as climate.  If you have 2x6 walls, 1 ... read more
Should we use spray foam insulation or batt insulation?
May 2, 2014
I would encourage you to read up on SPF and if you do go that route, make sure you get a great and insured installer.  SPF does have additional benefit from and air sealing standpoint but beyond the a ... read more

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The feedback presented on this page was collected by GuildQuality from Verified customers of Markool Heating & Cooling using our impartial third party survey process. To learn more about GuildQuality and our survey process visit www.guildquality.com

Markool Heating & Cooling

5110 Jefferson Pike,
Frederick, MD
https://markoolhvac.com/ (301) 969-9963