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Verified Reviews for Generator Install pros in Preston, MD

*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

Find Generator install pros in Preston

Avatar for Carey's Custom Services LLC
Carey's Custom Services LLC
4.9(
33
)

Serving Preston, MD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Job well done Carey's custom service delivered and completed the installation very well."
Electrical Work
Electrical Work
Electrical Work
Electrical Work
Response time2 days
8 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Resolute Electric
Resolute Electric
4.9(
32
)

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."
Braemar Towers remodel
Salvation Army
Reoccurring customer
Outdoor lighting
Braemar Towers remodel

+19

Response time11 hrs
6 neighbors recently requested a quote
Recommended by92%of homeowners
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Crest Electric
4.9(
29
)

Serving Preston, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Emergency services offered

Customers say: True professional

"Installation of my ceiling fan was tougher than expected due to the replacement of a fan mounted on a 20' ceiling. Dale, and his helper, D'Jere, did an excellent job replacing my old ceiling fan with a new one I purchased. Installation required removing the old fan and its 8' droprod, and installing the new fan with a different droprod. The job required assembling a two-tier scaffold with the use of an additional stepladder to get to the ceiling. Dale and his partner worked meticulously to get the job done, and the result was perfection. After the installation was completed, and the scaffolding was removed, Dale and his partner walked around the living room picking up any wire insulation clippings and other small pieces left over on the floor. They left the place pretty much spotless. Dale and his partner did a fantastic job, and I would definitely hire them again."
Response time1 day
10 neighbors recently requested a quote
Recommended by78%of homeowners
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Avatar for Duke's Electrical Services, Inc.
Duke's Electrical Services, Inc.
4.9(
310
)

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."
Recess light install
Recess and fan install
Recommended by90%of homeowners
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Independent Power and Solar LLC
5.0(
2
)

Serving Preston, MD and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

#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

Recommended by100%of homeowners
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Calvert Generator
New to Angi

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

Response time10 hrs
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Bramble's Electric, Inc.
0.5(
2
)

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.

8 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 24
Generator Install questions, answered by experts

Potential benefits of using a natural gas generator include reducing your carbon footprint, lower likelihood of carbon monoxide exposure, budget-friendly operating costs, and low-maintenance, continuous fuel supply. Some possible drawbacks, though, include higher initial installation costs, dependency on a natural gas supply, and installation complexity. Keep in mind that pros and cons will vary based on the type and brand of natural gas generator. 

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500–$2,000

  • Partial-Home Generators (9kW–20kW): $2,000–$6,500

  • Whole-House Generators (22kW–48kW): $5,000–$18,000

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

Yes, in most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home models. Because these installations involve significant alterations to your home's electrical system and produce exhaust fumes, local governments often require a permit or inspection for safety purposes. A generator permit typically costs between $50 and $250, depending on your location. Your electrician or certified installer can usually handle the permitting process for you, but you will be responsible for the cost. It's a good practice to confirm with your installer that they will pull all necessary permits before work begins.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

The Preston, MD homeowners’ guide to generator installs

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

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