Generator Prices & Whole House Generator Cost

What makes up whole house generator cost

The total cost usually includes the generator, an automatic transfer switch, a mounting pad, a battery, freight delivery, electrical and gas installation, and permits. Prices listed on this site cover equipment only unless the listing says otherwise.

Standby generator installation cost

Installation is priced separately by your local installer and depends on the gas line run, electrical work, pad and permits. Get a written quote from a licensed electrician before you order, so your total project cost is clear. Equipment prices on this site are published up front — what you see is what you pay for the generator itself.

Ways to save

A generator and transfer switch package can cost less than buying them separately. Sizing correctly matters too — buying more kW than your loads need adds cost without benefit.

Buy online with clear pricing

Every listing shows the selling price, stock status, fuel type and whether a transfer switch is included, so you can compare and buy in minutes. Use Buy Now on any product to start your order — no quote requests, no waiting for a callback.

What to check before you order

Confirm the kW rating for your fuel, your electrical service size (for example 200A), the transfer switch you need, and where the unit will be placed. Freight-shipped equipment needs someone available to receive the delivery.

Why buyers choose Generator Supply Direct

We sell generators direct to homeowners and businesses across the U.S. — standby, portable and commercial units with published prices you can compare side by side. Order online in minutes and have your generator shipped to your door or job site.

Ready to buy?

Pick the generator that fits your home or business, check the price and what's included, and place your order online. If you're not sure which size to buy, start with the kW rating pages or contact us before you order.

Is installation included?

No. Unless a listing says otherwise, prices cover equipment only. Standby generators should be installed by a licensed electrician and, for gas connections, a qualified plumber, following local permit rules.

How are standby generators delivered?

Standby and commercial generators ship by freight on a pallet. Confirm curbside delivery terms and that someone can receive the shipment before ordering.