A standby install runs $12-18K all in
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Our Generac verdict
Buy Generac if you want the machine every electrician knows and the only brand where three local dealers will bid against each other on your install. The Guardian line is the market default for a reason: $4,799 for a 14kW before install, parts everywhere, resale and installer familiarity unmatched. The warranty is the weak spot: full parts-and-labor coverage runs two years, year three is parts only, and years four and five cover little beyond the engine short block and alternator, so a controller failure in year four is your bill. Skip it if the complaint file and storm-week service queues worry you more than a thinner dealer bench would. Kohler and Briggs both write better fine print; nobody matches the network.
Generac's current Next Gen Guardian line runs $4,799 for the 14kW (7258), $5,599 for the 18kW, $6,189 for the 22kW, $6,599 for the 24kW and $7,019 for the 26kW machine-only at national e-dealer Norwall, with 200A transfer switch bundles from $5,839 (14kW) to $9,319 (28kW). The cheapest way in is the 10kW with a 100A 16-space switch at $4,189. None of that is the project price: Generac's own installation guide puts a typical installed home standby project at $8,000 to $16,000 including the generator, once the pad, gas line, transfer switch wiring and permits are on the invoice. Big-box stores still sell the previous-generation SKUs (7223, 7209/7210, 7290/7291) alongside the new line, often discounted as inventory turns over. Generac also runs frequent free extended-warranty promos through dealers, so ask before you sign.
The installed project, with the pad, gas line, transfer switch, and permits, typically runs $12,000 to $18,000. See the real-cost guide.
norwall.com · Verified July 2026
Before you buy Generac
The fastest buyer pages to read next if this brand is on your shortlist.
The real cost of a whole-house generator
Machine, pad, gas line, transfer switch, permits. The number your quote should match.
Best home standby generators
The whole-house shortlist, with the tradeoffs each brand page leaves out.
Generac vs Kohler
The two standby names most buyers end up between, head to head.
What size generator do I need?
Running watts, starting surges, and why the well pump usually decides.
From Generac
Official product and lifestyle imagery from the brand.
Images courtesy of Generac.
Strengths & considerations
What it does well
- +Biggest dealer, installer and parts network in US home standby
- +Widest air-cooled range, 10kW to 26kW, plus larger liquid-cooled units
- +Mobile Link remote monitoring standard and strong resale
Where it falls short
Sourced, not our opinion. This is the part the brand's own page leaves off.
CPSC recalled GP-series portables (GP3600 through GP9500ETF) for carburetor fuel leaks on first fueling, with 114 leak reports; a class action over the fuel leaks followed. Standby Guardians were not part of this recall.
Source: CPSC recall notice, April 2026; classaction.org
About 64,000 GP15000E and GP17500E portables recalled after 29 reports of pressurized fuel tanks expelling gas when opened, including three severe burn injuries.
Source: CPSC recall notice, 2023
Owner reports of controller failures, denied warranty claims and parts delays recur across BBB and ConsumerAffairs, and a 2026 service bulletin acknowledged a defective mixer on units built November 2025 to April 2026.
Source: BBB complaint file; ConsumerAffairs owner reviews
Before you buy: confirm these
These are Generac's own documented terms and open questions, not our test results. Get the specifics in writing on the quote before you order.
- ?Have the gas meter and line sized before you sign: a 22kW-plus unit can demand more gas than a standard residential meter delivers, and that upgrade lands on your bill, not the generator quote.
- ?The advertised price is usually the machine alone; the 200A transfer switch, pad, gas line, wiring and permit typically turn a $7,000 machine into a $12,000 to $16,000 project.
- ?Warranty repairs must go through an authorized Generac dealer and travel allowance is capped at 100 miles round trip, so check the dealer locator for real coverage near you before buying online.
- ?Big-box listings still sell previous-generation SKUs (7223, 7209/7210, 7290/7291) next to the Next Gen line (7258 through 7329); confirm which generation and warranty start date you are getting.
Anyone unwilling to fight a warranty claim if they land in the complaint-file minority, or who wants the quietest machine on the block.
Alternatives to compare
Kohler
premiumBuy Kohler if you plan to own the house long enough for enclosure quality and warranty fine print to matter more than the badge every installer quotes first. You pay a premium at street prices, $7,949 to $8,399 for the 26RCA that Kohler lists at $7,445 MSRP, and you get aluminum enclosures, commercial engine heritage, a 56 dB low-speed weekly self-test and dealer travel covered to 200 miles against Generac's 100. The catch is the bench: in many regions one Kohler dealer serves territory six Generac dealers fight over, and your outage repair waits on that one schedule. Skip it if the nearest certified dealer is more than an hour away. And confirm whether your quote includes the transfer switch, because the 14RCA and 20RCA price it separately.
Machine $3,834 - $8,399
Briggs & Stratton
mid rangeBuy Briggs & Stratton if warranty math drives the decision: 7 years of parts, labor and dealer travel standard beats Generac's effective two years of full coverage, and dealer-installed DX units stretch it to 10. The hardware undercuts the leader too, $7,195 for the 26kW flagship against Generac's $7,019 26kW with far shorter coverage, and $4,460 opens the line at 13kW. The tradeoff is the bench: the certified dealer network is a fraction of Generac's, and a 7-year warranty is only worth what the nearest servicer can deliver in a storm week. Skip it if the dealer locator shows nothing within an hour of your house. The 2020 Chapter 11 is history, but you are betting on KPS-owned Briggs staying committed to standby for the machine's 15-year life.
Machine $4,460 - $9,287
Cummins
premiumCummins is the quiet, engineering-first pick of the standby class: 65 dB or lower enclosures, a diesel-giant pedigree, and its own MSRPs undercut what most people assume premium costs, with the 13kW at $3,957 and the 20kW at $5,438 before ATS and install. The catch is the ownership experience after year two, when labor and travel coverage ends while parts run five years, and Kohler and Briggs cover labor longer. Residential dealer coverage is also thinner than Generac's, so the brand is only as good as the servicer in your zip code. Buy it if a Cummins residential dealer is nearby and quiet operation matters; look elsewhere if you want the longest covered-labor window or need more than 20kW without jumping to liquid-cooled money.
Machine $3,699 - $6,000
Comparing a few brands?
Tell us your outage pattern and budget. We'll tell you whether Generac or one of these fits you better, and check your quote so you don't overpay.
Key models
Support & warranty
The standard standby warranty is 5 years limited, but read the schedule: years one and two cover parts and labor comprehensively, year three is parts only, and years four and five cover only the engine short block and alternator, with dealer travel capped at 100 miles round trip. The service network is the industry's biggest by a wide margin, which is worth real money in a storm week even though the paper coverage is the thinnest of the big standby names.
5 years limited (standby). Generac runs frequent free extended-warranty promos, so ask before you sign.
The biggest dealer and service network in US home standby by a wide margin; parts are everywhere, and so is the wait when a storm hits a whole region at once.
FAQ
Is Generac worth it in 2026?
Buy Generac if you want the machine every electrician knows and the only brand where three local dealers will bid against each other on your install. The Guardian line is the market default for a reason: $4,799 for a 14kW before install, parts everywhere, resale and installer familiarity unmatched. The warranty is the weak spot: full parts-and-labor coverage runs two years, year three is parts only, and years four and five cover little beyond the engine short block and alternator, so a controller failure in year four is your bill. Skip it if the complaint file and storm-week service queues worry you more than a thinner dealer bench would. Kohler and Briggs both write better fine print; nobody matches the network.
How much does a Generac generator cost?
Generac machines run from about $4,189 up to about $9,319 based on current pricing on norwall.com as of July 2026. Generac's current Next Gen Guardian line runs $4,799 for the 14kW (7258), $5,599 for the 18kW, $6,189 for the 22kW, $6,599 for the 24kW and $7,019 for the 26kW machine-only at national e-dealer Norwall, with 200A transfer switch bundles from $5,839 (14kW) to $9,319 (28kW). The cheapest way in is the 10kW with a 100A 16-space switch at $4,189. None of that is the project price: Generac's own installation guide puts a typical installed home standby project at $8,000 to $16,000 including the generator, once the pad, gas line, transfer switch wiring and permits are on the invoice. Big-box stores still sell the previous-generation SKUs (7223, 7209/7210, 7290/7291) alongside the new line, often discounted as inventory turns over. Generac also runs frequent free extended-warranty promos through dealers, so ask before you sign.
What fuel does a Generac generator run on?
Natural gas or propane
Does a Generac generator need a transfer switch?
Sold with or without a bundled ATS; the 7210 and 7291 packages include a 200A whole-house switch. Budget the ATS and its wiring either way.
What is Generac's warranty?
The standard standby warranty is 5 years limited, but read the schedule: years one and two cover parts and labor comprehensively, year three is parts only, and years four and five cover only the engine short block and alternator, with dealer travel capped at 100 miles round trip. The service network is the industry's biggest by a wide margin, which is worth real money in a storm week even though the paper coverage is the thinnest of the big standby names.
Who is Generac best for?
The buyer who wants the safe default: every installer quotes it, every dealer stocks parts, and resale and installer familiarity are unmatched.
Who should skip Generac?
Anyone unwilling to fight a warranty claim if they land in the complaint-file minority, or who wants the quietest machine on the block.
What brands should you compare against Generac?
Most buyers should compare Generac with Kohler, Briggs & Stratton and Cummins before deciding. Quote at least two brands in the same lane. The installed price and the local service coverage decide more than the badge does.
Sources (8) · Verified Jul 12, 2026
We earn nothing from the “Visit” links on this page. Prices are public ranges and change often; confirm current pricing on the brand's site.
Methodology
Brand verdicts are based on buyer fit, lane and fuel logic, real machine and installed pricing, warranty terms, service network reach, and the recall and complaint record. A strong reply from a manufacturer can improve factual clarity, but it does not improve placement.
If dealer coverage is thin, the warranty fine print is ugly, or the complaint file is long, we say that plainly instead of hiding it behind marketing copy.
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