
Electrical, HVAC
"Dave is very responsive, he quickly found out the problem and got it fixed within 30 minutes, even before my arrival(I was running late). I am very impressed with his knowledge and professional yet very kind manner. compared to other contractor's one hour minimum charge, his rate is very reasonable,it is in half an hour scale instead of one hour minimum, saving money for small and easy fix projects. I have recommended his service to people that I know. we definitely will use him again for our future electrical repair need."
Fay C. in June 2016

hvac
"Replacement of my heat pump units, both inside and outside, was done nicely. Recommend this business."
Robert D. in May 2024

Central A/C - Service or Repair
"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."
F6C5F40DD7D75EF663364E88459E9EB167A381CF31B18061599E7BEC9C25AD44 D. in November 2025

Wood Worker, Refinish Furniture, Handyman
"Everything you want in a handyman. Reasonable, reliable, and very knowledgeable. We have used Michael for several different projects, and have been very happy with the finished products. He does not disappoint, and we will certainly plan to continue to use him for future projects."
Tim B. in January 2022
HVAC
"I recently had SPECS Heating & Cooling install an AprilAire humidifier for me, and I couldn't be happier with the results. From start to finish, their service was exceptional. The team was professional, knowledgeable, and efficient, ensuring that the installation process went smoothly. Since having the humidifier installed, my indoor air quality has significantly improved, and I've noticed a positive difference in the comfort of my home. I highly recommend SPECS Heating & Cooling for their top-notch service and expertise in HVAC solutions. Five stars all around!"
Ervin G. in March 2024

Drain Cleaning - Kitchen Sinks, Laundry Tubes, Bathroom Drains, Main Sewer Lines, Plumbing - Water Heaters, Leaky Faucets, Running Toilets, Sump Pump Repair & Installation & Much More, Air Conditioning - We Service All Makes & Models, 2 Year Warranty on Repairs, Annual Service Plans for Cleaning & Maintaining Equipment , and 2 more
"After signing up with Servicepro, I was on the phone with Horizon within 10 minutes. This was about 9:30 PM. They offered to come and fix the problem he next morning (day before Thanksgiving) but I declined because I was going away. Anyway I scheduled a 10 am appointment for Friday November 28, 2008 and they were very prompt. The techinitian expalined the issue and my heat was up and running within the hour. Very impressed with their service and professionalism. I am now signed up for annual check up for my HVAC system and would not hesitate to recommend them to others."
kirk A. in December 2008
Frederick Heating & Furnace Contractors are rated 4.9 out of 5 based on 1296 reviews of 1296 pros.
The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.
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