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TRUSTED BY GLYNDON, MD HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon18
    Verified generator installs reviews

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

Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
177
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Glyndon, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Response time1 day
Response rate100%
7 neighbors recently requested a quote
Avatar for Rollins Repair
Rollins Repair
4.7(
56
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Glyndon, MD and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"Our existing generator died. James diagnosed the problem and gave us a few options to repair or replace it. We chose to replace it. James handled everything, from getting and installing the new generator to electrical and fuel (propane) connections. We have asked him to schedule us for the annual maintenance on the machine. We are pleased, though we haven't lost power since it was installed, LOL."
 Air Cooled Generator
 30KW Quitesoure
 Residential Installation
 20KW Air Cooled
 Another Residential Installation

+6

Response time9 hrs
3 neighbors recently requested a quote
Recommended by97%of homeowners
Stiffler's Electric Service
4.8(
102
)
Portable Generator - Install

Serving Glyndon, MD and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"David Stiffler replaced a thermostat for my heated floor in the master bathroom. Because the old stat was discontinued, he had to research and find an alternative. David found a well priced substitute that worked, but not as efficiently as the original. When I told David Iâ d found a different model to try, he was more than willing to come back and replace the other one. After he installed the second stat, he returned the first and refunded the cost. Aside from doing a professional job, David is just a very pleasant person to be around. His primary concern was my satisfaction and I really appreciated that. I highly recommend Stifflerâ s Electric for its professionalism and for a pleasant customer experience!"
Recommended by100%of homeowners
Avatar for Electrical USA, Inc.
Electrical USA, Inc.
4.3(
42
)
Fixed Generator - Repair

Serving Glyndon, MD and surrounding areas

Approved

In business since 1986

Free estimates

Credit card accepted

"GENERAC Maintenance and Repair. I just used Electrical USA for my home back up generator service and repair. They did a fantastic job very affordable, prompt and thorough. Definitely recommend them!"
Response time4 days
73 neighbors recently requested a quote
Recommended by71%of homeowners
Meredith Electric LLC
4.6(
64
)
Portable Generator - Install

Serving Glyndon, MD and surrounding areas

Approved

In business since 1994

Free estimates

Small jobs welcome

"He was great! I would definitely recommend him ! Matthew and his apprentice Steve were both very professional and friendly. Reasonably priced. They were very neat and cleaned up after installing my ceiling fan! I was very pleased with their service!! I definitely would use them again!"
 Meredith Electric Logo
 An employee testing a circuit for power.
1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Artisan Electrical LLC
Artisan Electrical LLC
4.6(
21
)
Fixed Generator - Install

Serving Glyndon, MD and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Truly appreciated working with Erin to set-up the project. As others have said, she is top notch. Thaddeus did an excellent job installed an Interlock system for our generator. He willingly worked with us to installed the outside plug where we needed it. Very happy with Artisan Electric."
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install
Fixed Generator Install

+2

Response time1 day
9 neighbors recently requested a quote
Recommended by68%of homeowners
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Generator Install FAQs, answered by experts

Yes. You can connect your home back-up battery to a generator with its designated charger. Be sure that the output of the generator matches the input requirements for the battery for best results.

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

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.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Glyndon, MD homeowners’ guide to generator installs

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