*The Angi rating for Generator Install companies in Brooklyn, 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 Brooklyn, 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 August 19, 2025
Serving Brooklyn, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2011
Free estimates
Emergency services offered
"They did a great job installing my EV charger! The entire process went smoothly. The electricians showed up exactly on time and completed the work quickly."
+51
Serving Brooklyn, MD and surrounding areas
Approved
Super Service Award Winner
In business since 2000
Free estimates
Warranties offered
"Contacted C T Smith to install an Electric Vehicle charger (EVSE). Todd was very knowledgeable and professional. I love the fact that they are responsive when you contact them! The installation went great and the price was very reasonable! Very satisfied with CT Smith and will use them again as well as recommend them to others."
Serving Brooklyn, MD and surrounding areas
Approved
In business since 1998
Free estimates
Warranties offered
"Doug and his team did a thorough job with both a video call walk-through and an onsite follow-up review of the project to provide options before providing an estimate. Chris performed the work and was very detailed, asking questions during the install to be sure that the location of the junction boxes, etc. were exactly how we wanted them, while adhering to all code/safety requirements. The job was very involved and I am definitely pleased with the results."
Serving Brooklyn, 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."
Serving Brooklyn, MD and surrounding areas
Approved
In business since 2007
Free estimates
Warranties offered
"I hired K & K to install a range hood. There was no electrical there previously so they had to run electric. I also had them install a new light fixture and remove an exhaust fan. K & K did excellent work and even repaired an electrical box that another contractor had installed. I was given a great estimate and was charged the estimate price. Would definitely use again and recommend."
Serving Brooklyn, 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."
+5
Serving Brooklyn, MD and surrounding areas
Approved
In business since 1969
Emergency services offered
Warranties offered
"Great. Very easy to deal with. Professional. They answered right away, scheduled, emailed me the forms. Set up a quick appointment. Everything went very well. I will be using them moving forward for my periodic generator maintenance."
+2
Serving Brooklyn, MD and surrounding areas
Approved
In business since 2016
Warranties offered
Credit card accepted
"Haas technicians installed a ring pro doorbell in place of the intercom panel on the exterior of my home. The intercom works within the house and the doorbell works through the ring device. I am pleased with the aesthetics on the outside of my home and more importantly with the operation of the doorbell. I have used Haas for previous work and highly recommend Haas for any electrical services."
+8
Serving Brooklyn, 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 Brooklyn, MD and surrounding areas
Approved
Super Service Award Winner
In business since 1980
Free estimates
Warranties offered
"The install went well. The guys were flexible with schedule and performed a good install in line with their estimate."
+1
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 Baltimore, MD varies based on factors like generator size, fuel type, and installation complexity. Learn the typical price range and what influences your total cost.
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.
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.
Depending on your needs, many types of generators can power your home, RV, or campsite. Check out our guide for the best types of generators.
Whole house generators are a power alternative that can deal with frequent blackouts and other problems. Here’s how they function.
Say goodbye to blackouts by learning how to install a generator transfer switch. By following our guide, you’ll have a solution to nonstop power.
