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Find Generator repair pros in Knoxville

Avatar for Rollins Repair
Rollins Repair
4.7(
56
)

Serving Knoxville, 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."
 Air Cooled Generator
 30KW Quitesoure
 Residential Installation
 20KW Air Cooled
 Another Residential Installation

+6

Response time9 hrs
3 neighbors recently requested a quote
Recommended by97%of homeowners
Long Electric, LLC
4.9(
167
)

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Customers say: Quality work

"Long Electric goes above and beyond, here's how: 1. Generator maintenance: They have a thorough checklist, make a log of all repairs and replacements and then -- they clean the generator inside and out. We have had generators for 15 years and no other company took the time to clean the thing -- AND they're less expensive than most other electrical contractors. 2. Long Electric has always been at the house within 12 hours of a call for service. Example: We suffered a lightening strike to the house, which damaged anything in the house with a mother board, including the generator. Patrick, the master electrician who services our house, was here within 12 hours and installed surge protectors, repaired several GFI outlets that had been fried, got our electrical situation straightened out in one day. 3. A week after the lightening strike we lost power and found that the generator's mother board got fried due to the lightening strike and Patrick was able to diagnose it, repair and and get us back up in one day. Call Long Electric -- they'll install it or repair it in short order and have you back to normal. We would't go to another company."
Response time2 days
8 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"SciFiHomes, Inc. did a great job installing our whole-house generator. They are friendly, efficient, reliable. They take the time to do things right and make sure the homeowner understands the equipment."
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time9 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for JK Electric, Inc.
JK Electric, Inc.
4.9(
99
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Had a great experience with JK Electric. The install of my EV charger was done in less than an hour at a great price. I was given great advice on what to purchase before the install and the equipment works flawlessly!!!"
Response time1 day
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for GAC Services
GAC Services
4.8(
292
)

Serving Knoxville, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"Drake and Tassos did an excellent job analyzing the cause of our generator malfunction. They were also very professional and courteous in their communications and interactions. Thank you!"
Additional Photos
61 neighbors recently requested a quote
Recommended by94%of homeowners
JL Electric
4.9(
33
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 1999

Small jobs welcome

Credit card accepted

"I had a broken washer on a Saturday! Googled for a local repair person...Angieâ s List came up - first time I ever used it! Sent a message and received a call back in less than an hour and same day service! Joe was very polite and respectful and had my washer running again in short order! Highly recommend!"
Response time7 hrs
Response rate88%
Recommended by100%of homeowners
Avatar for Mark H. Anderson Electrical Services, Inc.
Mark H. Anderson Electrical Services, Inc.
4.4(
418
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"I requested a quote and was contacted quickly. Mark H Anderson was available to come to house within an hour of contacting him to repair wiring in the house. Completed repairs and identified other potential issues and made recommendations. Quick and very friendly. Highly recommend!"
Best of 2015
Response time1 day
5 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Kolb Electric Inc
Kolb Electric Inc
4.2(
222
)

Serving Knoxville, MD and surrounding areas

Approved

In business since 1925

Free estimates

Emergency services offered

"Very responsive, extremely knowledgeable, excellent problem solvers. They kind of really solved the mystery of why the generator didn't work that had to do with the electric."
Response time1 day
Response rate94%
4 neighbors recently requested a quote
Sidike
5.0(
10
)

Serving Knoxville, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2017

Warranties offered

Customers say: True professional

"I needed a dedicated 20amp circuit and outside outlet installed to my patio. Maitiai arrived on time, was friendly/professional, and completed the agreed upon work. He filed for the appropriate permit with the City of Frederick, and helped schedule the inspection which passed without issue. I would have no hesitation contracting with him again in the future."
Electrical Project
Response time10 hrs
Response rate91%
2 neighbors recently requested a quote
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Showing 1-10 of 278
FAQs for generator repair projects in Knoxville, MD

Always start by confirming the pro’s license number, insurance coverage, and experience level. Visit the electrician’s website, scan recent customer reviews, and verify credentials with your local labor department. Request proof of liability insurance and at least two references that you can contact. These quick checks take only a few minutes but go a long way toward ensuring safe, code-compliant work and protecting your home in the event of an issue.

Grouping several electrical jobs into one appointment means you pay a single service-call fee and one set of travel expenses. Instead of asking a pro to return three separate times for outlets, switches, and fixtures, have everything tackled in one visit. The electrician stays productive, and you avoid extra trip charges, often shaving a sizable chunk off the final bill without compromising quality.

DIY electrical work can be dangerous and, in many areas, illegal without a license. One miswired connection risks shocks, fires, or expensive damage. Licensed electricians carry the right tools, follow local code, and know how to shut down power safely before they start. Hiring a pro may cost more upfront, but it protects your home, family, and insurance coverage in the long run.

The Knoxville, MD homeowners’ guide to generator repair services

From average costs to expert advice, get all the answers you need to get your job done.