HomeMatchup
21 sections · Backup Generators

Backup Generators, an outage you sleep through

It usually starts with a freezer you had to empty after the last outage. The hard part is not the work - it is that every generator company sounds equally sure of itself, and you get one guess. We check licence and insurance before we introduce anyone, and we record the date we checked.

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Backup Generators in short

Backup generator services cover four separate jobs: sizing and selling the unit, the electrical work (transfer switch, wiring, sometimes a panel change), the fuel work (natural gas or propane piping), and ongoing maintenance. A whole-house standby install averages about $5,090 nationally and commonly lands between roughly $1,524 and $8,658 depending on size and site, per Bob Vila's 2026 cost data. Installation labor alone typically runs $1,500 to $5,000.

A whole-house standby generator averages about $5,090 installed nationally, with a typical range of roughly $1,524 to $8,658, per Bob Vila's 2026 cost data. The generator itself runs about $2,000-$3,500 at 7.5-10 kW, $4,000-$5,500 at 14-18 kW and $5,000-$6,500 at 20-24 kW. Installation labor adds $1,500-$5,000, transfer switch labor about $1,200, and permits $50-$200 each.

What we promise, and what we do not

How a pro gets in front of you

Most sites sell your number to whoever pays the most for it. We do not - your details reach only the generator companies matched to your job. We are building licence and insurance checks on top of that, and we will publish each one with the date it was performed rather than claim it in advance.

A few pros, never a list

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A company cannot buy a better position in a match or in our rankings. Where we rank, the method is published so you can re-score it yourself.

Check the licence yourself

Ask for the number and look it up on your state board’s public register. We are building this into the match; it is not running yet.

Ask the insurer, not the contractor

Get liability and workers’ compensation certificates sent to you by the insurance agency direct. A forwarded PDF proves nothing about today.

What we check, and what we do not check yet

No verified backup generators price ranges published yet.
We don’t publish a cost until we can show the data behind it. If you need a number today, the quote form gives you real prices from local companies.

Honest comparison

HomeMatchup vs. a lead site vs. doing it yourself

Three ways to get this work done. Here’s what each one actually gives you.

Getting backup generators work done - three routes compared
HomeMatchup Typical lead site DIY
How many companies call youA short, named shortlist you agreed toOften 4-5+ at once, sold to whoever buys the leadNone - the work is on you
Licence & insuranceSelf-reported today - we tell you how to check it and are building the check inUsually self-reported by the contractorYour own permits and liability
What it costs youFree - pros pay us, and only for a real matchFree, but your number is resoldMaterials plus your time
Price guidance before you talkPublished ranges with the data behind themRarely shown before you hand over detailsYou research it yourself
If it goes wrongA named company, and a record of who received your jobHard to trace which site sold the leadNo recourse

Describes how HomeMatchup operates and the common lead-generation model. Not a claim about any named competitor.

Homeowners

What people say after they’ve hired

Zero reviews. On purpose.

We’d rather show you nothing than show you someone else’s reviews.

Plenty of sites fill this space with reviews scraped from elsewhere, or written for them. We don’t. The first backup generators review on this page will come from a homeowner we matched, after their work was finished and paid for.

  • Only from homeowners we actually matched
  • Only after the job is complete
  • Published unedited, including the bad ones
  1. 1You get matchedA few checked pros, free
  2. 2Work gets doneCheck their licence and insurance first
  3. 3We ask youOnce, after completion
  4. 4It appears hereExactly as you wrote it
FAQ

Backup Generators questions, answered

The questions homeowners ask us most about backup generators.

Bob Vila’s 2026 data puts a whole-house standby install around $5,090 nationally, typically about $1,524-$8,658. Units run roughly $2,000-$3,500 at 7.5-10 kW, $4,000-$5,500 at 14-18 kW and $5,000-$6,500 at 20-24 kW; labor adds $1,500-$5,000. Transfer-switch labor is about $1,200; permits often $50-$200 each. See our generator cost guide.
It depends on your outage exposure. EIA data for 2024 show the average U.S. customer lost about 663 minutes of power including major events but only about 132 minutes excluding them - so much of the case is storm insurance. Wells, sump pumps, medical equipment and long rural outages strengthen the case considerably.
At least 20 feet from windows, doors and attached garages, and always outdoors, per Ready.gov. A garage with the door open is not outdoors - CPSC testing found compliant units in an open attached garage still produced CO levels high enough to injure people in living spaces.
Hard. Bob Vila’s 2026 figures: small 1-6 kW about $500-$1,800, mid-size 14-18 kW $4,000-$5,500, 20-24 kW $5,000-$6,500, and 26-32 kW $6,500-$15,000 for the unit alone. Large whole-house models can run $5,000-$18,000 before labor. Going up a size class “just in case” is a common way to overspend.
Bob Vila puts transfer-switch installation labor around $1,200 for roughly four hours of work, on top of the switch hardware. Concrete pads run about $50-$75 per square foot. Subpanels may add $530-$2,000; a dedicated circuit $500-$1,000. Ask whether pad, permits and gas line are in the headline number.
See all 1 backup generators question

The wrong generator hire costs more than the right one.

A generator is bought for a day that has not happened yet. Undersized or badly installed, it fails on exactly that day. Getting matched takes about a minute, costs nothing, and you can walk away from every quote you receive.

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Who wrote and checked this

Written by

The HomeMatchup Content Team

Editorial
Reviewed by

Michael Thompson

Senior Home Improvement Reviewer · 20 years

Senior technical reviewer.

Team-written. Second-person reviewed. Sources dated. Report a correction.

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