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  • Verified reviews icon15
    Verified generator installs reviews

Top-Rated Generator install pros in Cheltenham - Updated Nov 2026

Technician Engineers Group
3.7(
15
)
Generator - Install - For Business

Serving Cheltenham, MD and surrounding areas

Approved

In business since 1996

Offers commercial services

Customers say: Quick response

"Anthony and his team do expert electrical work of all kinds. We are a 145 year old non-profit organization with buildings and grounds, and have contracted with Technician Engineers Group (TEG) on two large projects (and several small ones) over the last 15 years. One project rewired a large 125 year old building listed on the National Register of Historic Places, and one installed an extensive outdoor lighting system. In these two unusual situations TEG worked closely with us to find innovative solutions to our unique needs. We are very pleased with the results, enjoyed their can-do approach, and highly recommend this company for any electrical challenge. We found TEG reliable, honest, on time, and all the work was completed ahead of schedule."
4 neighbors recently requested a quote
Recommended by53%of homeowners
Calvert Generator
New to Angi
Generator - Install - For Business

Serving Cheltenham, 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
Avatar for Ethridge Electric & Generator Services
Ethridge Electric & Generator Services
4.8(
33
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Repair - For Business

Serving Cheltenham, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Ron Ethridge has been our Electrician of chose for the past three years. I started out using Ron to service my generator after the warranty lapsed. Heâ  s provided that big company expertise with that small organization connection. Since that time Ron and his team have provided electrical services for our entire home. I feel comfortable leaving Ron in our home while weâ  re away which is a huge feat for me particularly. Iâ  m grateful for the service that Ron and his team continues to provide to our family."
Panel Change/Heavy Up
Panel Change/Heavy Up
Panel Change/Heavy Up
Recessed Lighting
Recessed Lighting

+1

Response time2 hrs
Recommended by100%of homeowners
Ritzau, LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cheltenham, MD and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"Patrick, who supervised the installation of a generator which I had, also worked up the initial recommendations and estimate. This generator was used, but that did not deter Patrick from coming up with a plan. Other contractors sent estimators who were more sales people than experienced generator contractors. Only Ritzau made the recommendation to replace the old fashioned transfer switch which came with the unit with an up to date digital transfer switch. This
"
Recommended by100%of homeowners
Nothing But Panels, LLC
4.8(
246
)
Portable Generator - Install

Serving Cheltenham, MD and surrounding areas

In business since 2016

Warranties offered

Credit card accepted

"Anthony was great. He installed two new breakers for a washer/dryer I had installed in the basement. He also install outside motion lights and changed a single outlet to a double. He is very professional and explain everything before he started the work. He communicated well with us. I highly recommend this company."
200A amp upgrade
200A upgrade
Meter can relocation
Federal pacific panel
Whole house surge protector

+41

Response time6 hrs
Response rate92%
Recommended by99%of homeowners
Avatar for Paradise Construction
Paradise Construction
4.4(
173
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cheltenham, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"EXCELLENT!!! Based on other reviews, I reached out to Paradise to troubleshoot an issue with flickering lights. I was shocked when Tim offered to troubleshoot the issue for free, despite estimating it could take 1.5-2 hours. Tim was prompt (even called to let me know he was running a few minutes late), wore a mask (COVID), was courteous, and determined the issue really quickly. He entertained answering all of my electrical questions, came up with the best path forward to resolving the issue, and provided a very reasonable quote for repairs. I will definitely be having him complete the recommended repairs! It is hard to find tradespeople like Tim in DC; available, knowledgeable, friendly, and, most importantly, a professional who takes pride in his work. If you have a need for an electrician, you must call Paradise Construction."
Recommended by85%of homeowners
Avatar for BGE Home
BGE Home
4.6(
1,327
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cheltenham, MD and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"We needed our water heater replaced. It was somewhat complicated because we wanted to upgrade the tank in size, but we had limited room for it. There was some back and forth in finding the appropriate tank, but the salesperson and technicians were very pleasant to work with throughout the whole process. When the pipes were moved and the tank was installed, it was done efficiently and professionally. We are very happy with our experience and the final product."
Recommended by94%of homeowners
Avatar for Argent Heating And Cooling LLC
Argent Heating And Cooling LLC
4.3(
706
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Cheltenham, MD and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"Argent sent a great team of three highly skilled technicians to install our new HVAC System. They met some obstacles with our old system versus installation of the new one but easily overcame them and produced a great installation. They were courteous, friendly, helpful and they got the job done expertly."
Recommended by87%of homeowners
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Generator Install FAQs, answered by experts

Generators are safe to use as long as they are installed and operated correctly according to the manufacturer's recommendations. The most critical safety tips are to never use a portable or fuel-powered generator inside an enclosed space due to the risk of lethal carbon monoxide poisoning; always operate it outdoors where fumes can dissipate away from your home. Additionally, never attempt to connect a generator to your home’s electrical panel yourself—hire a professional to ensure the setup meets safety standards. Finally, avoid overloading the generator by not connecting more appliances than it is rated for, as this can damage your equipment or cause a fire.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

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. 

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

The Cheltenham, MD homeowners’ guide to generator installs

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