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TRUSTED BY GAINESVILLE, VA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon22
    Verified generator installs reviews

Find Generator install pros in Gainesville

Avatar for Cody Malone Services LLC
Cody Malone Services LLC
5.0(
358
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I have been hiring Cody Malone since we purchased our house in July 2012. They have switched out outlets, installed indoor ceiling fans, installed outdoor ceiling fans, ran electrical to my outdoor water feature and switched out my light fixtures. I plan to hire them again when I add electric to my detached garage. They always do a great job and arrive when they say they will. I have never had a single issue and they have been to my house for no less than six different projects!"
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Response time4 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for SciFiHomes Inc
SciFiHomes Inc
5.0(
27
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 2006

Free estimates

Warranties offered

"These guys did a fantastic job and were an absolute pleasure to work with. Small business, all primary work done by the three owners/operators of the group, who are are masters in their respective fields: "Tech Guy", Electrician, and Gas Fitter. (I genuinely hope to not cause offense by this broadly generalized description). I had a 20kW Cummins LP/NG-fired automatic backup generator installed and connected to a new automatic transfer switch, and (since we had no existing gas system) a new 500gallon LP propane tank installed and under-grounded to feed the generator. My main electrical panel was brought up to current code in the process. The excavation and burial work was subcontracted to a trusted local operator that did really nice work, and they worked with Southern States to provide a tank and first fill. They handled all the permits and coordinated the inspections. Waiting for the county inspector, and waiting for Southern States to fill the tank after the gas inspection, were the only observable delays in the process, and those were negligible/reasonable. The SciFiHomes people were quick, efficient, and obviously practiced with all of their pieces of the work. They will strongly prefer Cummins-brand generators over the competitors, and they are more a more expensive initial investment compared to them. After doing my own research after their sales pitch, it is a very worthwhile "upgrade". The difference between Cummins' generators and the competitors is fuel efficiency; according to the math, I'll get over 24 hours of additional runtime vs (as an example) Generac's 20kW generator at 40% average load on a full 420gallons of propane in the new 500gal tank. With an extended outage, or multiple long outages as with last winter in Frederick County, that's a very significant advantage. Sorry for the "sales pitch"; I only included this to prove that they're in my opinion very justified in pushing the "premium" brand. We purchased the extended warranty uplift as well as their extended service agreement. We can't recommend them enough; fantastic experience, and this generator has already flawlessly provided over 20 hours of outage coverage in the 5 months we've had it. Winter is coming, and we'll be ready this time. It just works... These guys and their total solution probably isn't the absolute cheapest in the area... but we absolutely got what we paid for. Thanks SFH!"
Cummins Onan 400A ATS
Cummins Onan 20kW
Briggs & STratton Standby Generator
Response time7 hrs
Response rate100%
8 neighbors recently requested a quote
Avatar for Varco Electric
Varco Electric
5.0(
9
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"They did a fabulous job and I would recommend them to anyone!! The crew was professional and definitely knew what they were doing. Even from the beginning when I was looking to upgrade my old electric panel, they showed me different options and didn’t try to sell me anything I didn’t need. 10 out of 10 would highly recommend!"
Response time9 hrs
2 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Snell Heating & Air Conditioning, LLC
Snell Heating & Air Conditioning, LLC
4.6(
168
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"I was very impressed with this company from beginning to end. When they gave me an estimate, they spent 90 minutes with me to make sure I selected the right furnace and AC. The crew came two days later and installed the furnace and AC in one day. Great job! Very happy with the whole experience. I highly recommend this company to others."
15 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Appleton Campbell, Inc.
Appleton Campbell, Inc.
4.3(
59
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"Kevin Johnson came by and provided excellent electrical technician service after a GFI outlet failed, was replaced, and still did not function. His calm demeanor, clear communication, and expertise were immensely helpful in successfully resolving the issue and ensuring that the repair was successful after all the outlets were reinstalled."
Happy HVAC Technician
Electrician gathering parts
Checking in the equipment needed for the day
Happy Electricians
We make our own sheet metal!

+9

Response time9 hrs
Response rate94%
198 neighbors recently requested a quote
Avatar for Benfield Electric Co.
Benfield Electric Co.
4.9(
5
)

Serving Gainesville, VA and surrounding areas

Approved

In business since 1968

Free estimates

Emergency services offered

Benfield Electric Company is an area leader in the Electrical Service field, serving customers throughout Northern Virginia, Maryland, and D.C. We work with residential and commercial clients and pride ourselves on our capability to meet all types of electrical wiring demands and deadlines. Established in 1968, we are a licensed, bonded and insured class “A” Electrical contractor. We are focused on providing a wide array of services to meet all our customer's needs

Air Cooled Backup Generator Install
Air Cooled Backup Generator Install
Air Cooled Backup Generator Install
Liquid Cooled Backup Generator
Transfer Switch

+9

9 neighbors recently requested a quote
Recommended by60%of homeowners
Avatar for Parrish Services, Inc.
Parrish Services, Inc.
3.9(
52
)

Serving Gainesville, VA and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Emergency services offered

"Received a call from Parrish Services. We spoke for almost 30 minutes on the phone plus using a video app I was able to stream to him my home heating system. Based on my situation and the current installed oil heating system I would be wasting money trying to change to a new electric system. He indicated the system installed was a top of the line efficient system. After the conversation I let him know I appreciated his honesty and input. That input included having to upgrade electrical panel etc.. Bottom line.. Found Parrish to be honest, bottom line answers yet willing to work with you on what you want done. Thanks Parrish .Services..."
AC Replacement
AC Replacement
AC Replacement
Generator Installation
Generator Installation

+3

Recommended by89%of homeowners
Avatar for M.E. Flow
M.E. Flow
5.0(
5
)

Serving Gainesville, VA and surrounding areas

Approved (Corporate)

In business since 1951

Free estimates

Emergency services offered

M.E. Flow offers FREE in-home consultations for replacement HVAC systems and we are an authorized dealer of most major brands. Established in 1951 by Millard Edward Flow we remain family owned. Replacing your HVAC system and water heater is a big investment. When you go with M.E. Flow your satisfaction is guaranteed. We do not install customer supplied equipment, do new construction, or give quotes over the phone. We send a professional home comfort advisor to your home--even meet you after hours. During your home visit we will design you the perfect system, answer all your questions, and get your system in the family budget. Financing and/or rebates are typically available. Qualified Staff: You get a team of professionals, NATE certification means your getting the best. Company employees are required to pass a background investigation which include a criminal records check and drug testing. We also offer the best guarantees.

ME Flow HVAC Services
8 neighbors recently requested a quote
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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.

In some situations, yes. Never try to put biofuel into any home generator without checking the specifics first. If a generator has the ability to run on diesel, it can also run pure biofuel (the clear kind made from seed oils, for example). But if you are using biofuel made from animal fats or vegetable oils, the generator will need significant modifications before it can handle a sludgier type of biofuel.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

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.

In many cases, yes. There are models called dual-fuel generators and fuel switches, but only between certain types of fuel. For example, with the right setup you can convert a generator from natural gas to propane. Some allow switching between diesel and gasoline. There are even tri-fuel generators available in some cases, which adds a large layer of security if you are worried about fuel availability in times of crisis. Always check your generator capabilities and manual instructions before trying to switch fuels. Some generators can use another fuel but may need a fuel conversion kit to prep them first.

The Gainesville, VA homeowners’ guide to generator installs

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