*The Angi rating for Generator Install companies in Brandywine, 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 Brandywine, 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 May 09, 2026
Serving Brandywine, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Emergency services offered
"Excellent job . Ludwing arrived on time and worked for 6 hours to complete the installation. He went beyond to solve some part issues . I would highly recommend him ."
+8
Serving Brandywine, MD and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"John came in and hooked up the wires, added switches for the recessed lights in the kitchen. He even prewired for an island hood vent... another project of mine later down the road. He did the work quickly and cleaned up well. I would use them again for another electrical projects in the near future."
Serving Brandywine, MD and surrounding areas
Approved
In business since 2014
Emergency services offered
Warranties offered
"The work went great. A representative looked over the situation ( a 3 story townhouse), decided it could be done and gave us a solid price. The two person crew who did the work were punctual, efficient and neat in their work. The detectors and wiring was installed with no damage to the paint. The job took them about 3 hours. My wife and I were very pleased."
+5
Serving Brandywine, MD and surrounding areas
Approved
In business since 2000
Emergency services offered
Warranties offered
"A+ Top notch service. Installing 1 attic fan, realized needed another one replaced. They went out, got a 2nd one and installed them both, plus gave advice on our under cabinet lights that always blink. Followed up the next day with a $15 solution to try before we do a repair. Good communication - they answer the phone when you call. Showed up on time and done in under 2 hours which included the time to get the 2nd fan."
+10
Serving Brandywine, MD and surrounding areas
Approved
In business since 2011
Free estimates
Small jobs welcome
"Kenneth was very professional. He was great with communicating how he was going to do the install. He showed up on time. Did the job and cleaned up behind himself. I would definitely recommend him to others. Great job!"
+71
Serving Brandywine, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Credit card accepted
"Trowell did a wonderful job installing my ev charging station. They were punctual and very professional, did a fabulous job..."
+6
Serving Brandywine, MD and surrounding areas
Approved
In business since 2012
Free estimates
Emergency services offered
"On June 10, I had a company to install security equipment in my home. In doing so, the installer drilled through a wire and I did not have electricity in several outlets due to the damage. Since the company did not have an electrician on staff and was unable to refer me to anyone, I turned to Angie’s List for help in finding someone to correct the problem. I called Hands on Electric on June 11 and spoke to the owner, Kevin Williams. I explained my problem to Mr. Williams and he gave me a window of time in which he would be able to come out. Not only was he able to come out the same day that I called, but Mr. Williams was able to come much earlier than expected. Once he arrived he was able to trouble shoot and diagnose the problem. Mr. Williams was very, very friendly, professional and honest. He was able to answer my husband’s questions and explained what he was doing as he made the repairs. My husband was very happy about that and we were both impressed by the years of experience Mr. Williams had for his age. I have been looking for an electrician for a while now and have decided that I will be using Hands on Electric for all of my future projects. I was very pleased with the work that was done by Mr. Williams and will recommend him to my friends and family when they need of electrical services."
+6
Serving Brandywine, MD and surrounding areas
Approved
In business since 1925
Free estimates
Emergency services offered
"Installer did a good job on installing ceiling fan with light kit. He was friendly and cleaned up after installation. Still working well 2 months later. The only things disappointing is that my initial phone quote was about $100 less than I was originally charged. I'm not sure if the difference was the labor I was charged to assemble the ceiling fan.
Recently, I was contacted by the Frederick Manager, Lou and he took care of my concerns. We discussed future job opportunities in my home. I would recommend this company for their good work and customer service."
Serving Brandywine, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1980
Free estimates
Warranties offered
"Went smooth. This cabling job was for an installation of an analog test line at GSA HQ."
+1
Serving Brandywine, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2016
Free estimates
Emergency services offered
"He did the job right, made extra effort to enable easier hole repair. Very personable and easy to work with. He even corrected bad plug wiring done to the dryer by Lowe's on install."
+2
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
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.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
The cost to install a whole-house generator in Washington, DC varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
Natural gas generators can tap into existing gas lines so they never run out of fuel. Here’s how they work and how they’re used.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Before installing a fixed generator, think about your use and space. Review these backup generator questions to prepare for a talk with your contractor.
