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Home Generator Cost Calculator: What a GTA Install Really Runs

Last updated:ByStandby Power Desk

A 14 to 18 kW standby generator costs $9,500 to $13,000 fully installed in Toronto, and a 20 to 26 kW unit $13,000 to $16,500, before the 13 percent HST, according to RenoHouse. The two things that push a quote past those bands are a panel still on 100 A and a gas run over 60 ft from the meter. Add yours below.

Price your own install

Installed, before HST

$9,500–$13,000

A 14 to 18 kW standby generator, fully installed in the GTA. Add 13 percent HST on top, and expect a real quote to land inside this band rather than on either end of it.

Standby generator, 14 to 18 kW, fully installed (RenoHouse, Toronto, 2026 guide)
$9,500–$13,000

Nothing here is a quote. Kolji Bros. Electrical price a broader Ontario whole-home band at $18,000 to $35,000 for 20,000 to 48,000 watt systems, well above RenoHouse's Toronto tiers, and the spread is home size, gas line length and whether a panel upgrade is bundled in.

The same job, priced up from its parts

RenoHouse also breaks its 16 kW example project into line items. Adding those up independently gives $10,400–$13,600, against the $9,500–$13,000 bundled tier above. Two routes through the same published data, a few hundred dollars apart.

16 kW Generac Guardian generator cabinet, equipment only (RenoHouse, Toronto, 2026 guide)
$5,200–$5,800
200A service-rated automatic transfer switch with load management, installed (RenoHouse, Toronto, 2026 guide)
$1,400–$1,800
Gas line from meter, TSSA-licensed sub-contractor (30-50 ft run) (RenoHouse, Toronto, 2026 guide)
$1,200–$2,200
Electrical tie-in, ESA Master Electrician (panel plus transfer switch wiring) (RenoHouse, Toronto, 2026 guide)
$1,800–$2,400
Concrete equipment pad, poured (4 ft x 5 ft, 6-inch slab) (RenoHouse, Toronto, 2026 guide)
$400–$700
Permits, inspections and commissioning (16 kW example project) (RenoHouse, Toronto, 2026 guide)
$400–$700

These parts are what the bundled price is made of, so they are shown beside the total and never added to it.

Where the money in a generator quote actually goes

The cabinet is under half of it. RenoHouse's 16 kW example project puts the generator itself at $5,200 to $5,800 and then spends roughly as much again on getting it connected: $1,400 to $1,800 for a 200 A service-rated automatic transfer switch with load management, $1,200 to $2,200 for a TSSA-licensed gas line from the meter, $1,800 to $2,400 for an ESA Master Electrician to do the panel and switch wiring, $400 to $700 for the concrete pad and another $400 to $700 for permits, inspections and commissioning. That is why a cheaper unit rarely produces a proportionally cheaper quote.

It is also why the two figures on this page are kept apart. Adding the bundled installed tier to the line items that make it up would count the transfer switch, the gas line and the permits twice, on a page where every row is real and the total is wrong. The build-up is a cross-check on the bundle, not an addition to it, and the two land within a few hundred dollars of each other.

What makes one GTA quote higher than another?

Distance and the panel, in that order. The gas run from the meter is the swing factor every Ontario source in our data agrees on, and it is a function of where the meter is rather than of the house. Site access is the quiet one: a generator pad on the far side of a fenced yard from both the meter and the panel is two long runs, not one. After that comes the panel, and after that whether the municipality wants a separate building permit for the pad, which varies across the GTA.

Two things this calculator deliberately will not tell you. It has no idea what your house needs, so start at the sizing calculator and bring a kW figure here. And it prices the install only: what the machine costs to run afterwards is the fuel running-cost calculator, and whether the whole thing is worth it at all is the worth-it checker.

Frequently asked questions

How much does a home generator cost in Toronto?

RenoHouse's Toronto guide prices a fully installed standby generator at $6,500 to $9,500 for a 7.5 to 11 kW unit, $9,500 to $13,000 at 14 to 18 kW, and $13,000 to $16,500 at 20 to 26 kW, all before the 13 percent HST. Those figures already include the cabinet, the transfer switch, a standard gas run, the electrical tie-in, the pad and the permits. Kolji Bros. Electrical quote a wider Ontario band of $18,000 to $35,000 for 20,000 to 48,000 watt systems, and the gap between the two is mostly home size and whether a panel upgrade is folded in.

What is usually missing from a generator quote?

The electrical panel. Kolji Bros. Electrical price a 100 A to 200 A upgrade at $1,400 to $1,800 as a separate item, while RenoHouse folds a similar upgrade into some bundled quotes, so two quotes can differ by that much without either being wrong. Ask directly whether the price assumes your panel is already 200 A. The other one is gas line distance: a standard 30 to 50 ft run from the meter is inside the installed price, but RenoHouse adds $500 to $1,000 once the run passes 60 ft.

Is propane more expensive than natural gas to install?

Yes, and mostly because of the tank. A 500-gallon propane tank bought outright and installed runs $2,500 to $3,500 per RenoHouse, or $200 to $400 a year to rent. EcoFrost Heating puts the propane setup premium over a natural gas hookup at a further $100 to $250. Where an Enbridge main is already at the house, natural gas is both the cheaper hookup and the one that cannot run out mid-outage.

Does the installed price include HST?

No. Every figure on this page and in our cost guides is quoted before the 13 percent HST, which is how Ontario contractors normally publish them. On a $13,000 install that is another $1,690. Confirm whether a written quote is HST-in or HST-extra before you set two of them side by side, because that one difference is larger than most of the line items being compared.

Why is the calculator giving a range instead of a price?

Because the sources publish ranges, and narrowing them would be inventing precision. Where two Canadian sources disagree this register widens the band rather than averaging them: RenoHouse's Toronto 20 to 26 kW tier is $13,000 to $16,500 while Kolji Bros.' broader Ontario band reaches $35,000, and both are published, current and Canadian. A real quote depends on your gas run, your panel, your pad location and site access, which no calculator can see.

What does the installed price actually cover?

RenoHouse breaks its 16 kW example project into a $5,200 to $5,800 generator cabinet, a $1,400 to $1,800 200 A service-rated automatic transfer switch with load management, a $1,200 to $2,200 TSSA-licensed gas line from the meter, a $1,800 to $2,400 electrical tie-in by an ESA Master Electrician, a $400 to $700 concrete pad and $400 to $700 of permits, inspections and commissioning. Those parts add to $10,400 to $13,600, which is why they are shown beside the bundled tier on this page and never added to it.

Where these prices come from

Four named Canadian sources, all quoted in Canadian dollars, every row traceable to one of them in our standby generator cost guide. Where they disagree Home Generator Index widens the range rather than picking a favourite, which is why the 20 to 26 kW band on this page does not pretend to be a single number. Prices are current as of August 2026.

Who installs these in the GTA?

Where inside these bands your own house lands is a question about your gas run, your panel and your site access, and only a written quote settles it. This register lists 56 companies doing the work in the Greater Toronto Area, averaging 4.74★; the three here lead the published review-weighted score, which nobody can buy their way into.

See all 56 standby generator installers