4.5 
37 *The Angi rating for Generator Install companies in Spencerville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
*The HomeAdvisor rating for Generator Install companies in Spencerville, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
Last update on September 03, 2025
Serving Spencerville, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2010
Free estimates
Customers say: Quality work
"Expert whole house generator Installation at a good price."
Serving Spencerville, MD and surrounding areas
Approved (Corporate)
In business since 1970
Free estimates
Warranties offered
"I’m back again to write another stellar review for GAC. Last year they replaced our HVAC system; this year we circled back and had them install a home generator. This was a long and drawn out process due to the various approvals needed from Montgomery County as well as coordination with Washington Gas (which ended up not just being a simple sign off but necessitating an additional, expensive upgrade to the gas line from the street to our home). Nevertheless, GAC did a fantastic job shepherding this process over the 6+ months of waiting on stakeholders, and they were also maximally accommodating to our family’s significant constraints on time and availability (due to health concerns related to a medically fragile family member). A special kudos to Sandy M, GAC’s master electrician, who took it on personally to ensure we were taken care of all throughout this process, going above and beyond with phone calls, text messages, personal visits, etc. on behalf of my family, I want to thank GAC and am giving top marks across the board for this effort which was complex , lengthy, and ultimately successful."
Serving Spencerville, MD and surrounding areas
Approved
In business since 2004
Free estimates
Credit card accepted
"Our existing generator died. James diagnosed the problem and gave us a few options to repair or replace it. We chose to replace it. James handled everything, from getting and installing the new generator to electrical and fuel (propane) connections. We have asked him to schedule us for the annual maintenance on the machine. We are pleased, though we haven't lost power since it was installed, LOL."
+6
Serving Spencerville, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2007
Free estimates
Emergency services offered
"It went great! Professional, quick to call and discuss the request. What I like the most was their genuine interest in helping me fast. They gave me an estimate the same day and the job was performed in less than 48 hours. I would definitely hire Green Electric for my future requirements. Thanks Mr. Darnell!"
Serving Spencerville, MD and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Your technician that came out to do a yearly maintenance inspection on my generator was very nice and knowledgeable. He arrived actually earlier than expected and went right to work. I would recommend your company to anyone and it was so nice to deal with someone who acted like they enjoyed their work and wanted to please. Thank you!"
+8
Serving Spencerville, MD and surrounding areas
Approved
In business since 2014
Free estimates
Emergency services offered
"I had John and Aaron come to my home because I was interested in installing a Theater in my new home. They went through the new technologies and options for the Theater and were very knowledgeable. I ended up going with a 4K projector and a Dolby Atmos and absolutely love it and show it off to all my neighbors. Iâ m so glad I took their recommendation on spending the extra money on the projector to get true 4K. I watched the Pitt game this weekend in 4K and it was amazing. I totally recommend this company."
+26
Serving Spencerville, MD and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
Horizon Services (MD), LLC, is the regions largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey and Northeastern Maryland. After a quarter of a century in business, Horizon Services (MD), LLC, remains fully committed to setting the industry standard for customer service, installation and focusing on things that are important to busy homeowners.
Serving Spencerville, MD and surrounding areas
Approved
In business since 2021
Free estimates
Credit card accepted
Calvert Generator is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n
Serving Spencerville, MD and surrounding areas
In business since 1995
Free estimates
Emergency services offered
"Excellent experience, professional and great communication. Did a tune up and maintenance on a home generator. Already considering more projects."
+1
Serving Spencerville, MD and surrounding areas
In business since 2005
Free estimates
Emergency services offered
"Ritzau Generators
10520 Ewell Avenue
Kensington, MD. 20985
301-580-4491
[email protected]
Patrick installed a home generator for us back in the spring 2013. It has performed wonderfully as needed.
We had an issue with a leak from one of the gas pipes feeding the generator and Patrick responded immediately.
"
From average costs to expert advice, get all the answers you need to get your job done.
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