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Find Generator repair pros in Gaithersburg

Avatar for Rollins Repair
Rollins Repair
4.7(
56
)

Serving Gaithersburg, 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(
168
)

Serving Gaithersburg, 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
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Nasr Electric Inc
Nasr Electric Inc
4.9(
276
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"Unfortunately I hired NASR Electric for the purpose of repairing my Hot tub exterior circuit breaker panel, but his inspection revealed the problem was my hot tub, not the circuit breaker panel. Yet, he helped me get to the root of the problem, so now its off to a hot tub repair person..."
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+19

Response time5 days
Response rate100%
Recommended by97%of homeowners
Avatar for William G Hyman Electrical Contractor
William G Hyman Electrical Contractor
4.8(
439
)

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1980

Free estimates

Warranties offered

"I highly recommend this company. Bill Hyman, owner, went out of his way to explain rationale for repairs needed, and was quick to respond to additional questions. The service team, led by Jeremy, were very professional, knowledgable, friendly, and meticulous. The work performed was excellent!"
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+6

Response time10 hrs
4 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Greenleaf Electric, LLC
Greenleaf Electric, LLC
5.0(
118
)

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Customers say: True professional

"Gil was professional and very knowledgeable. He completed the assessment and made necessary repairs quickly. So much so that i asked if he could add a new outlet in the garage. He completed that on the same trip. He does good work and even called the next day to make sure everything was fine and we were satisfied! Thanks JFC Frederick MD"
Under Cabinet Lighting
Kitchen
Response time1 day
Response rate88%
5 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
293
)

Serving Gaithersburg, MD and surrounding areas

Approved (Corporate)

In business since 1970

Free estimates

Warranties offered

"The installation men came at 8AM as promised since we were the first call of the day.  The two men inside starting to disassemble the unit inside while the other man removed the condenser outside and the platform and replaced it with a new platform and condenser.  They were able to do the entire job in under 4 hours including testing the cooling and heating units.  The sheet metal work was very professionally done with very little seams and looked more cohesive than what we had before.  They wrapped the pipes with installation like we had before and there was a new shut off box outside.  We are delighted with their workmanship.  It has been a little too cool to turn on the A/C but we know that it works since they have turned it on to test both the A/C and the furnace before they left.  It is suppose to be warmer this weekend so maybe we will have a chance to try it out.  We are very happy with GAC, Christine, the service person (Jermaine), the estimator, QA and the installers.  We are looking for a good relationship with GAC now that they are our A/C company."
Additional Photos
9 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Vital Electric
Vital Electric
5.0(
43
)

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Emergency services offered

"Ludwing did an amazing job! He installed a new light fixture in my home and what I appreciated the most was that he explained the connection to the wiring and how things work. This was very helpful because he corrected a job from a handyman who installed a light fixture that could have destroyed my home. He is a master of his craft. Not only will I use him for future projects but have also shared his contact with friends needing electronic assistance."
Natural history museum
Island light
Island light
Additional Photos
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+8

Response time7 hrs
Response rate100%
Recommended by60%of homeowners
Stiffler's Electric Service
4.8(
102
)

Serving Gaithersburg, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I hired David for an inspection and repair of a circuit faulted after a lightning strike nearby. He accommodated my request very promptly (same day after 6pm, so I did not have to take a day off for this!). He replaced a damaged GFCI outlet and tested the rest of the circuit, inspected the main electrical panel as requested. It was a very friendly experience, and a very reasonable cost (he seems quite flexible about cost too!). Would definitely hire again for any future electrical problems."
Recommended by100%of homeowners
Green's Electric
5.0(
19
)

Serving Gaithersburg, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2007

Free estimates

Emergency services offered

"This company resolved my electrical issue quickly and professionally. The technician was knowledgeable and clearly explained what was wrong and how they fixed it. I was expecting a longer wait, so I was grateful they could get to me so soon. Pricing was fair and the whole experience was excellent. I def highly recommend this company to anyone needing electrical work done. Thank you!!!"
Response time1 day
Response rate100%
29 neighbors recently requested a quote
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FAQs for generator repair projects in Gaithersburg, 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 Gaithersburg, MD homeowners’ guide to generator repair services

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