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TRUSTED BY DAYTON, MD HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon25
    Verified generator installs reviews

Find Generator install pros in Dayton

Avatar for Tim Kyle Electric Heating & Cooling
Tim Kyle Electric Heating & Cooling
4.9(
369
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dayton, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1986

Emergency services offered

Warranties offered

"Can't say enough about how smooth a process this was, from permitting to planning, installation to startup. Ryan and his team were very professional, very clean and thoughtful throughout. Very responsive and friendly in their communications and the work is outstanding. Looking forward to their help for many years to come."
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+17

Response time1 day
Response rate95%
21 neighbors recently requested a quote
Avatar for GAC Services
GAC Services
4.8(
292
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Dayton, 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."
Additional Photos
36 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Clinton Electric Co Inc
Clinton Electric Co Inc
4.6(
172
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Dayton, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Warranties offered

"Clinton Electric is a very professional organization: responsive, efficient, quality materials, excellent workmanship and a reasonable price. Jordan Mayer, the electrician, who performed the installation was outstanding. I highly recommend this company."
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+2

Response time1 day
Response rate92%
10 neighbors recently requested a quote
Avatar for OC1 Electric
OC1 Electric
4.6(
51
)
Fixed Generator - Install

Serving Dayton, MD and surrounding areas

Approved

In business since 2009

Customers say: Quick response

"Oupekkha showed up exactly on time, explained clearly what he was doing, what his annual service contract included and reassured me that our generator is good to go. He even topped off the oil for us. I signed up!"
Response time1 day
1 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Rollins Repair
Rollins Repair
4.7(
56
)
Fixed Generator - RepairGenerator - Repair - For Business

Serving Dayton, 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
Avatar for Bailey & Shipp Electric
Bailey & Shipp Electric
4.1(
82
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Dayton, MD and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Your technician that came out to do a yearly maintenance inspection on my generator was very nice and knowledgeable. He arrived actually earlier than expected and went right to work. I would recommend your company to anyone and it was so nice to deal with someone who acted like they enjoyed their work and wanted to please. Thank you!"
3 recessed lights
Single Recessed Light
Custom Bathroom Wiring
chandelier
Panel Replacement After

+8

Response time10 hrs
3 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Clinton Electric Company, Inc.
Clinton Electric Company, Inc.
3.9(
172
)
Fixed Generator - InstallFixed Generator - Repair

Serving Dayton, MD and surrounding areas

Approved

In business since 1969

Emergency services offered

Credit card accepted

"They checked my generator and said nothing was wrong, that the problem was probably with the electric companies transformer. My problem still exist. The electric company sent people out to check the current coming to my house and said everything is okay. They are going to install a monitor to check what is going on when there is an outage. So as of now my generator does not come on."
The Team
 Generac Automatic Standby Generator
Dusk to Dawn Spotlights
 Electrical Panel
Trucks

+7

Response time2 hrs
145 neighbors recently requested a quote
Recommended by86%of homeowners
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Showing 1-10 of 104
Generator Install questions, answered by experts

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

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.

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.

The Dayton, MD homeowners’ guide to generator installs

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