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    Verified generator installs reviews

Find Generator install pros in Harmans

Avatar for All In Electric
All In Electric
4.8(
32
)

Serving Harmans, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"Keith and the team at All In Electric are extremely professional and Keith is always fast to respond. When we first moved into our house, Keith came and talked through some of my plans for my living room to remove a ceiling fan, install some recessed lighting, install an outlet in the ceiling for the projector, pull through an HDMI cable from the projector to the entertainment center, and add an additional switch to separate out the lights on my staircase from the lights in my living room (a recommendation that I hadn't even thought of but Keith recommended and I'm glad he did!). When I was getting this job quoted out, some of the others who I had called either just gave me numbers over the phone or didn't even prepare a quote, and this was before Covid. While this wasn't a huge job, it spoke a lot about Keith's professionalism and the quality I could expect from him and his team. Fast-forward to the last couple of days and I had purchased a video doorbell knowing that I had issues with my doorbell since we moved in, but we didn't really mind not having the doorbell ring. I tried several things myself and was at an impasse, so I reached out to Keith to see if I could get someone from his team out to take a look, give me a quote, and/or fix this issue. Upon telling Keith of the issue, he mentioned that it sounded like the transformer had gone bad. I let him know that I had actually just replaced that transformer and he was very prompt to respond and even mentioned a few other things that it could be, as not all doorbell wiring is the same. Based on what he mentioned, I was able to determine that it was in fact the chime that had gone bad and the power was not making it to the front door button because the chime had gone bad. Needless to say, I 100% recommend Keith and his team for any of your electrical needs and I will continue to call Keith for all of mine."
(2) Automatic Transfer Switches next to the (2) main electrical panels.
Here is a 22kw Generac Standby Generator.
A 24kw Guardian Series Generac generator sitting on top of a 3" concrete pad.
The RED light will turn GREEN after AIE activates in through Generac.
Whole House Standby Generator System

+51

Response time1 day
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Able Electrical Services Inc
Able Electrical Services Inc
4.9(
468
)

Serving Harmans, MD and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Everything about Able Electrical Services service was superb! I was in a jam, and Able Electrical Services came to the rescue. Both of the mechanics that assisted were excellent. Russell Ridgway was the primary mechanic and he was amazing! His work is superior and he exceeded my expectations every step of the way. For example, I needed electrical outlets to connect install a wet bar. He measured the wet bar and installed the outlets exactly where they were needed and ensured sufficient power was added to accommodate a kegerator and mini-frigs. I highly recommend Able Electrical Services and hope I never need to use any other electrician."
Kitchen Lighting
Modem Home
Response time1 day
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for GAC Services
GAC Services
4.8(
291
)

Serving Harmans, 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."
Additional Photos
66 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Chesapeake Electric
Chesapeake Electric
4.7(
75
)

Serving Harmans, MD and surrounding areas

Approved

In business since 2014

Emergency services offered

Warranties offered

"The electrician did a quality job by relocating the light fixture; however, the actual charge was $195 or 65% more than the estimated price of $300. Owner refused to pay the extra $195 and the realtor had to pay it. Electrician also didn't replace two regular recessed light bulbs and the realtor would have to buy the light bulbs from Home Depot and installed himself."
Additional Photos
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+5

11 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
172
)

Serving Harmans, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"Clinton Electric is a very professional organization: responsive, efficient, quality materials, excellent workmanship and a reasonable price. Jordan Mayer, the electrician, who performed the installation was outstanding. I highly recommend this company."
Additional Photos
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Additional Photos

+2

Response time1 day
Response rate92%
6 neighbors recently requested a quote
Avatar for Wolf Electric LLC
Wolf Electric LLC
5.0(
97
)

Serving Harmans, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Credit card accepted

"Wolf Electric came out and did a great job installing our new bathroom fixture. The job was done quickly and professionally. Would definitely recommend!"
Response time6 hrs
1 neighbors recently requested a quote
Recommended by2%of homeowners
Avatar for WireFox Electric
WireFox Electric
4.9(
15
)

Serving Harmans, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Ted was polite, professional, timely, and respectful of my home. He protected areas where he had to make a little mess, consulted with me on where he had to drill holes, and cleaned up impeccably afterward. Ted installed an EV Charger in my garage and even helped me ensure I purchased the correct type. He was also very knowledgeable about rebate filings and the advantages of installing one in your home. I'm already looking at a few other projects for Ted to complete. I would highly recommend his company. I'm sure you will receive excellent customer service as I did."
During Install - wide view
During installation
JuiceBox Gen 2 Car Charger / EVSE
Receptacle with conduit
Installation of Conduit

+6

Response time4 hrs
Response rate89%
Recommended by100%of homeowners
Avatar for Duke's Electrical Services, Inc.
Duke's Electrical Services, Inc.
4.9(
309
)

Serving Harmans, MD and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"We hired Duke Electric for multiple projects to update an older house. Mark was very professional and knowledgeable and was able to accomplish all the projects that we needed. We used him first for a quick project (fix circuit breaker that fried) and then a larger project to upgrade outside and inside lights, and move fans and overhead lights. He does it all. I have already recommended him to other people."
Recess light install
Recess and fan install
Recommended by91%of homeowners
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Showing 1-10 of 557
Generator Install questions, answered by experts

If you’re deciding between a solar battery versus a generator for the best backup power solution, you can take a few factors into consideration. Solar batteries are quiet while generators can be quite loud. Generators have a lower up-front cost, but they require fuel and ongoing maintenance while solar batteries are more expensive but don’t have many ongoing costs.

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Harmans, MD homeowners’ guide to generator installs

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