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Verified Reviews for Generator Install pros in Saint Leonard, MD

*The Angi rating for Generator Install companies in Saint Leonard, 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 Saint Leonard, 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 December 13, 2025

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Calvert Generator
New to Angi
Generator - Install - For Business

Serving Saint Leonard, 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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Avatar for Evergreen Electric LLC
Evergreen Electric LLC
4.9(
36
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Leonard, MD and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"We wanted to try a local contractor and came across Evergreen by chance.  It was an excellent experience.  Thad was knowledgeable and professional and easy to work with.  The crew was exactly the same.  Nice, respectful, competent.  The worked around my crazy schedule as we had other improvements going on.  They had a slight delay in getting the generator as there was a back order, but called and let us know and we worked around it.  Laurie in the office was equally good and kept us in communication on details or things to do and schedule etc.  I could not be more happy with the experience on such a big purchase.  They were always accommodating and helpful.  The Generator and switch were high quality and I think the price was fair.  They even did some easy side things for us for no charge.  We will definitely use them again soon to install an attic fan."
Recommended by100%of homeowners
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Avatar for Paradise Construction
Paradise Construction
4.4(
173
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Leonard, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"I ended up hiring someone else who could install a ceiling fan as Paradise Construction was afraid of needing to tear up a large section of the ceiling and I didn’t want to create additional work and expense."
Recommended by85%of homeowners
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Avatar for Sam and Sons Services
Sam and Sons Services
4.0(
144
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Leonard, MD and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"They mislead me by saying they were coming to install when they were really coming to give an estimate. I felt like I was being spoken down to because they were trying to explain something to me, but I already knew what it meant. They assumed I didn’t know what they were talking about. The deal isn’t going to work out because of extra costs."
Look for one of our many trucks out and about in your area!
Chandeliers, wall lights, canned lightins, we do it all!
Ceiling fan installation
Tranform yoour Bathroom!
Faucet and shower head repair and installation!

+4

Recommended by78%of homeowners
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Avatar for Mason Electrical Services
Mason Electrical Services
4.3(
12
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Saint Leonard, MD and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"It went very well, he is a licensed electrician and he changed all of my old s12 sockets to energy efficient sockets so that I could use my electronic devices and not blow circuits.  I was being charged each time I called in a help ticket.  So I called Mason Electrical Services and had him come out and take a look . He came out and took a look at the problem and gave me an estimate .and I was really satisfied on the price.  He arrived promptly on 8 March 2014 had everything he needed to work with, and completed the work it only took a couple of hours and the job was done.  In that time he installed a ceiling fan in my bedroom with a remote.  He didn't make a mess.  I would definitely recommend him to others needing electrical services in the future.

"
Recommended by83%of homeowners
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TruPower Electrical Contracting, LLC
4.8(
2
)
Generator - Install - For BusinessGenerator - Repair - For Business

Serving Saint Leonard, MD and surrounding areas

In business since 2000

Free estimates

Credit card accepted

TruPower Electrical Contracting LLC is your very best option for all your electrical needs. We always offer the very best pricing, excellent customer service and superior workmanship on every job we do. Call us now for a quote!

Response time2 days
Recommended by100%of homeowners
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Family Business
New to Angi
Generator - Install - For BusinessPortable Generator - Repair

Serving Saint Leonard, MD and surrounding areas

In business since 2001

Free estimates

Credit card accepted

We offer over 10 years of experience in the electrical industry. We take on a wide range of electrical projects to include full installation for additions and remodels as well as wiring and panel upgrades and a variety of other jobs. We're committed to providing a personalized service for each individual project we take on & look forward to building strong, long-term relationships with our clients and guarantee your satisfaction.

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Showing 1-10 of 36
Generator Install questions, answered by experts

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

The Saint Leonard, 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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