How Costwise makes money

Costwise is free to use. We earn in two ways, and only when you choose to act: a fee if you ask to be matched with local installers, and occasional affiliate commission on marked links. Neither ever changes the prices or advice you see.

Installer quotes (lead generation)

If you request quotes, we can pass your details to vetted local installers who may pay us for the introduction. You are never charged. We only share your details for the specific job you asked about, with your consent, and you can decline at any time.

Affiliate links

On a few pages (for example boilers, heat pumps and solar) we link to suppliers who can give a fixed online price. If you buy through one of those links we may earn a commission, at no extra cost to you. Those links are marked, and they never affect our price guides or which option we suggest.

What we do not do

We do not take payment to change a price, rank a supplier higher, or write a fake review. Our figures are independent. Read how we price for the detail.