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TRUSTED BY COLMAR, PA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon24
    Verified generator installs reviews

Find Generator install pros in Colmar

Avatar for Trinity Generators & Electrical, Inc.
Trinity Generators & Electrical, Inc.
4.3(
28
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Colmar, PA and surrounding areas

Approved

In business since 2009

Emergency services offered

Customers say: True professional

"Last Monday, Nov. 3, I had some major surgery done on my GENERAC generator. It was time for "Super Maintenance" and your service man did a SUPER job! His name is Joe and he did a great job servicing my machine. He arrived on time and went right to work. He changed the oil and oil filter, put in a new battery, adjusted the valves, put in a new air filter, and even cleaned the top of the generator. All this while i looked over his shoulder and asked questions, lots of questions. I am impressed with Mr. Joe. He is very knowledgeable about your products, well spoken, and easy to talk to. It took him less than an hour to complete his work, despite my constant jabbering. He's a KEEPER! Thank You Trinity, And Thank You Joe! Paul O Weller Trinity Client"
Response time2 days
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for John Gambino Electric
John Gambino Electric
5.0(
24
)
Fixed Generator - InstallPortable Generator - InstallFixed Generator - Repair+4 more

Serving Colmar, PA and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

"Bill H from Gambino Electric showed up promptly on time for the job. There were some edge ceiling tiles that needed to be removed to reach the power line and Bill did very clean work with the removal and disposal. Bill showed cross sections of the older range power line and the new line installed, describing the differences in insulation and safety features of the newer line. Bill went above and beyond by detecting the wrong cord on the new range, and replaced this with the proper range gauge power cord. Bill also helped us to correctly position and level the new range appliance. I would recommend Bill and Gambino Electric for any similar household wiring job where safety and quality of work are a priority."
Electrical
Electrical
Electrical
Additional Photos
Additional Photos

+4

Response time1 day
18 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Your Electric Now Inc
Your Electric Now Inc
4.8(
225
)
Fixed Generator - InstallPortable Generator - Install

Serving Colmar, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"John did another excellent and timely job. He answers any / all questions related to the job; proposes options (and pricing) and will make the best recommendation that is NOT exclusively the higher priced option. He responds quickly to calls; makes a service call appointment as mutually convenient as possible and calls before he arrives. I have used him previously for an attic fan issue (which he resolved quickly and at no charge) and for dimmer switch replacements. Things went smoothly. John is my "Go To" electrician and I highly recommend him anytime that an electrician is needed."
Electrical Panel
Recess lights
Under cabinet lights
Additional Photos
Additional Photos

+4

Response time1 day
10 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for DM Electrical Services, LLC
DM Electrical Services, LLC
5.0(
36
)
Generator - Install - For Business

Serving Colmar, PA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"We are VERY pleased with DM Electrical. Dan was very professional, was prompt at appointed time, and performed the electrical the electrical service we requested, which was to install a new electrical box, in a diligent manner. We will definitely no only call them again if we need electric service, but will recommended them to others."
Response time3 hrs
Recommended by97%of homeowners
Avatar for Revival Electric
Revival Electric
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Colmar, PA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Revival Electric is a locally owned and operated electrical company providing reliable, high-quality residential and light commercial electrical services. We specialize in electrical repairs, panel upgrades, lighting installations, generators, EV chargers, and whole-home electrical safety solutions. Our focus is simple: safe work, clear communication, and dependable service. We take pride in doing the job right the first time, educating homeowners along the way, and offering long-term solutionsnot quick fixes. Whether you need a small repair or a full electrical upgrade, our licensed electricians deliver professional results you can trust. We also offer preventative electrical safety inspections and service plans to protect your home

 Revival Electric
Avatar for Michelbacher Contracting, LLC
Michelbacher Contracting, LLC
4.8(
9
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Colmar, PA and surrounding areas

Approved

In business since 1992

Free estimates

Customers say: Quality work

"Dave and his guys did a great job, as always. He came out next day. Fixed an outdoor outlet by my pool and installed a Ring flood light and camera for my side yard. Done within an hour at a very reasonable price. Can't recommend them enough."
Master Suite  rough in
Master Suite
roughed in bath
Finished bath
Relaxing Tub area

+4

Response time1 day
3 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Malachowski Construction & Excavation LLC
Malachowski Construction & Excavation LLC
5.0(
8
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Colmar, PA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"The workmanship was top notch. New sump pump, back up battery, plumbing and new drains were installed. The guys who installed were very professional and cleaned up after themselves. All of the above at what I though was a very fair price. I would use them again in a heartbeat."
Response time4 days
Response rate100%
6 neighbors recently requested a quote
Avatar for AMF Electric, LLC
AMF Electric, LLC
5.0(
3
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Colmar, PA and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"Highly recommend AMF for all your electrical needs. The whole crew were very professional. Took the time to explain everything from existing issues they found and the steps they would take to repair. They had to move some furniture and other things and paid close attention to detail while cleaning up after themselves and putting everything back exactly how it was. Top notch craftsmanship"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+7

10 neighbors recently requested a quote
Recommended by100%of homeowners
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Generator Install questions, answered by experts

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.

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

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.

The Colmar, PA homeowners’ guide to generator installs

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