
Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"They are prefect! Lifetime heating and air conditioning company."





+47

*The Angi rating for Subcontracting companies in Jefferson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
*The HomeAdvisor rating for Subcontracting companies in Jefferson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Subcontracting needs.
Last update on May 08, 2025

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2002
Free estimates
Emergency services offered
"They are prefect! Lifetime heating and air conditioning company."





+47

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Warranties offered
"Basement is nice and dry! Team is wonderful to work with. Very well done!!"





+339

Serving Jefferson, MD and surrounding areas
Approved (Corporate)
In business since 1970
Free estimates
Warranties offered
"GAC came to our house, and in these trying times, face masks, gloves to evaluate our home and provide three options. And their proposal was the best we saw since we sought more than one. Their team came on time, and removed old system. Installed new system, and re routed system lines better than previous installer at no cost. Even insulated exterior lines and added additional protection for them. Leveled the compressor. And installed a better humidifier. All while in these trying times? Social distancing was maintained even when they walked me through the set up my Nest Thermostat, and system training. Face masks and gloves. Work area was clean and neat after they were done. We are so pleased with how GAC handled our job. Oh, and all the extra work they did? No additional cost for me. Part of the contract they offered me."


Serving Jefferson, MD and surrounding areas
Approved
In business since 2005
Free estimates
Customers say: Quality work
"Robbie is polite and knowledgeable. He has done other work for us in the past which overall was very good. He quoted a certain price which we understood would cover the work to be done, but when the time came to do it, we had to spend more and eliminate several aspects to cover the total cost. It is possible that this was just a misunderstanding, since he is pretty casual about contract details. I agree with the other reviewers that rated his company a B overall: beware of his subcontractors which make serious as well as cosmetic mistakes and be aware that he may take weeks or months to contact you, unless it's an emergency. I also thought his price estimates were in the high range, although I believe the finished project was probably higher quality than much less expensive contractors."





+26

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Free estimates
Warranties offered
"I’ve used Allen and his team on multiple projects. He is my go-to contractor because I can trust him to tell me what I need and what I don’t need to have done in a project. His prices may be higher than others but the quality is worth it. In this most recent project, Allen took my laundry area from concrete and concrete block, to a fully finished laundry room complete with new appliances, counters and cabinets for storage and folding, a space for drying clothes to hang, and a closed off utility space. Additionally, he changed a half-bath to a full bathroom with 5-ft shower. To do this, Allen, Jeff, and Ryan had to dig up the concrete floor to move pipes; had to replace copper piping, and reroute ductwork. In doing so, they found that my dryer had been venting into my ceiling rather than outside, which was a fire hazard. I am fortunate that they found this. As the project was wrapping up, I had them paint and add new flooring in the family room adjacent to the laundry and bathrooms. I also had them replace my backyard fencing, relocate the outside spigot and hose attachment. As with all of my projects, Allen’s the attention to detail was beyond compare. He kept me in the loop when problems or decisions need to be made."





+359

Serving Jefferson, MD and surrounding areas
Approved
In business since 1936
Free estimates
Emergency services offered
"From the first moment I spoke with Sebastian Valentine on the phone to the installation by Zach and Logan, it was excellent. Sebastian gave us several different option for the install and helped in securing the project loan from Home Depot. Zach and Logan showed up exactly when expected and were ready to start the job. They were very respectful of our home and took extra time to explain all of the equipment they had installed. I recommend McCrea to anyone needing HVAC services!"




Serving Jefferson, MD and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
"Both father and son were a dream to work with. So professional, from the first contact to the execution of the job. They took time to educate. Did the work swiftly and cleaned up behind them. Excellent rates!!!! I will absolutely hire them again for all other electrical work I have in the future and will recommend to any one I know that needs electrical work in the area."

Serving Jefferson, MD and surrounding areas
Approved
In business since 2018
Free estimates
Warranties offered
"This company was 5 stars from start to finish the crew that came to house was very professional very respectful of our house 5 STARS would highly recommend if your in the market for a craw space encapsulation"





+14

Serving Jefferson, MD and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"Because I just had these rods installed a few days ago (and now it's Nov 26, 2021) I haven't had enough time to evaluate the work quality and value - but I have no reason to doubt that both are good. I priced materials for this job, as I originally planned to install themselves, but when I realized that I truly didn't want to get up on the roof of my house (which is quite high) or to get on the roof of my barn (metal, thus slippery) I decided to hire the pros. So that I am very happy with and of course it therefore cost more than it would have if I had done the job myself - but it was safer for me, and also much quicker than I would have been. So, I am glad I called W B."





+79

Serving Jefferson, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2013
Free estimates
Warranties offered
"Installed five ceiling fans and three light fixtures. Expert installation , highest quality work by master electrician. Professional, courteous service at very fair prices. Highly recommend"





+8
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