5 
10 *The Angi rating for Generator Install companies in Wilmington, DE 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 Wilmington, DE 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 July 05, 2026
Serving Wilmington, DE and surrounding areas
Approved
In business since 2003
Emergency services offered
Warranties offered
"Stephen communicated with me from start to finish and completed the job perfectly, and with precision! Including testing with my generator to provide instruction on usage and verified everything worked as expected!"
+9
Serving Wilmington, DE and surrounding areas
Approved
In business since 2016
Free estimates
Emergency services offered
"Brett did a great job installing new lighting and a 240v outlet in a timely and professional manner. I look forward to working with Brett again in the future!"
Serving Wilmington, DE and surrounding areas
Approved
In business since 1987
Free estimates
Emergency services offered
"the job was complicated because another installer had left connections from heated floor tiles in the wrong place Chris and Joe and Anthony had to do a lot of adapting to get connections made I felt that they did an excellent,difficult job."
Serving Wilmington, DE and surrounding areas
Approved
In business since 2020
Free estimates
Offers commercial services
"Bay Line Construction did an outstanding job installing a new electrical outlet and upgrading our panel. The crew was professional, on time, and extremely knowledgeable. They explained everything clearly, worked efficiently, and left the area clean when they were done. The work was done safely, neatly, and passed inspection without any issues. It?s clear they take pride in their craftsmanship and safety standards. I highly recommend Bayline Construction for any electrical work and will absolutely use them again."
Serving Wilmington, DE and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
#1 Customer satisfaction is what determines our success, which is why we take a hands-on approach. You'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.\n
Serving Wilmington, DE and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"The install was a smooth process. They were professional and provided guidance on appropriate unit selection for the space. I would certainly rehire WM Henderson Plumbing & Heating for future HVAC projects."
Serving Wilmington, DE and surrounding areas
Approved
In business since 1980
Free estimates
Emergency services offered
"Jim & his team did an AMAZING job on my bathroom remodel. I am so happy with how everything turned out. Job was completed in less then 1 week. Iâ ve hired Lockhart construction previously for my Kitchen remodel as well & could not be happier. I recommend Lockhart construction 100%. I will definitely use them again for my next project."
Serving Wilmington, DE and surrounding areas
Approved
In business since 1988
Credit card accepted
Customers say: Quick response
"After buying a new refrigerator, Home Depot told me I needed a plumber to run a new water line to the refrigerator. I was not happy with the Home Depot tech that called me. The plumber, Dave, arrived soon after I called Harris and did a phenomenal job! He was friendly, professional and worked quickly. Thank you, Dave, and Harris Plumbing!!"
+8
Serving Wilmington, DE and surrounding areas
Approved
In business since 1999
Free estimates
Warranties offered
"Work was completed and hooked up house generator."
Serving Wilmington, DE and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
Experience The Horizon Difference.\n\nOn-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!\n\nHorizon Services is the region's 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, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.\n
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