*The Angi rating for Generator Install companies in Preston, 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 Preston, 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 January 13, 2026
Serving Preston, MD and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"could not be better. Mr. Carey checked our whole home generator and explained how it works in great detail."
Serving Preston, MD and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"I would highly recommend Resolute Electric. Klaus contacted me very quickly after my initial request and came to the house to assess the work request. I had two rooms that required different ceiling light installations and Klaus provided me with several different options for each install. The work was scheduled promptly and completed with the upmost professionalism and care. Klaus explained the work being performed as he went through each project enabling us to get the exact install configuration (type of light/bulb, positioning, switch options etc.) we required. The work was done patiently, not rushed and we were consulted throughout the day. Pricing for the work was very reasonable and as quoted i.e. no surprises. The quality of Klaus's work was exceptional and I'm extremely happy with the installations. I will definitely use Resolute Electric again when I need another electrical project."
+19
Serving Preston, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Emergency services offered
Customers say: True professional
"I would like to thank Crest Electric and their team for the work they did at my new home. We recently purchased a house in DE, and being new to the area, it was a relief to find a fair and reliable contractor who takes pride in their work. I needed their help with installing recess lighting, raising the electrical outlets, mounting TVs with TV mounts, installing chandeliers, and handling the installation of doorbells, cameras, and floodlights. It was such a relief to have Crest Electric manage this huge project, and they offered a reasonable price without making me feel like I was being ripped off. I highly recommend Crest Electric for their attention to detail and their willingness to make adjustments to ensure that everything is perfect in the eyes of their clients. This is something that a lot of contractors take for granted, but Crest Electric truly understands the importance of meeting their client's needs and preferences. -Michael"
Serving Preston, MD and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"Mark was able to provide a quote and the service in the same week. He was extremely professional and efficient. He completed two ceiling fan installs."
Serving Preston, MD and surrounding areas
Approved
In business since 1992
Free estimates
Credit card accepted
"They were excellent and I will hire them again"
+3
Serving Preston, 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 Preston, MD and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
Bramble's Electric Inc., was established in 2000 and provides over 15 years of professional experience. We handle both residential and commercial projects from major installs to minor electrical repairs. Our company has a commitment to the consumer to deliver excellence not only in the quality but the satisfaction of our work. Let us know how we can provide you with world class service today.
Serving Preston, MD and surrounding areas
In business since 2021
Free estimates
Credit card accepted
"Excellent service and excellent pricing! Always makes sure to explain all the details and completes the job. I have had multiple outlets, recessed lighting, new circuits, ceiling fans, light switches and vanity lights installed. I will use them time and time again! Great company!"
Serving Preston, MD and surrounding areas
In business since 2012
Free estimates
Emergency services offered
"Very smoothly. Very knowledgeable and professional, but at the same time down to earth and friendly. I would recommend Trinity electric any day giving them an A+."
Serving Preston, MD and surrounding areas
In business since 2000
Free estimates
Credit card accepted
"Very pleased with the work they did and if I need more electrical work I will use them again."
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Wondering who to hire to install a generator? Consult this guide to learn who to hire to install a generator or a transfer switch.
