How our service works
This site is a cost guide with a free introduction service attached. We do not design or build extensions. If you ask for a quote, this is exactly what happens next.
Four stages
You send the form
Your postcode, the kind of extension, a rough floor area, when you hope to start, how far the drawings have got, and a phone number or email.
We look for a builder
We search for an extension builder who takes on kitchen extensions of that size in your postcode area. We aim to come back to you within one working day.
We tell you who it is
You get the firm's name before it gets yours. Say yes and we pass your enquiry on. Say no and nothing leaves us.
They visit and price
The builder looks at the house, the access and any drawings, then gives you a price. If you accept, the contract is between you and them.
Who pays
The builder does. A firm that receives an introduction from us pays a fee for it. You pay us nothing at any point, whether or not you go ahead with the work.
What we do not do
- We do not take deposits or any other money from homeowners.
- We do not pass your enquiry to anyone before you agree, or to any firm other than the one we named.
- We do not price your job. Only a builder who has seen the house can do that.
- We do not put you on a mailing list.
About the prices on this site
The per m² rates are our summary of what UK builders publish as typical 2026 prices for single-storey extensions. They are national figures and a guide, not a quote. Planning fees and rules come from GOV.UK, the Planning Portal and the Scottish Government, and each page lists its sources. Nothing here is legal or planning advice for your particular house.
We are not a building firm
Kitchen Extension Cost has no connection with any builder, kitchen company or architect whose name resembles ours. The design, the building work and the guarantee all come from the firm you choose to appoint.
Contact
Email support@grubleads.com. To have the details you sent us deleted, see the privacy notice.
Get a quote for your kitchen extension
Your postcode, four quick questions about the job, then how to reach you. It takes about a minute.
This is a free introduction service, not a building firm. We find an extension builder who works in your area and tell you who they are. Your details go to them only when you say yes.
Thanks. We have your enquiry.
- We look for an extension builder who takes on kitchen extensions in your postcode area, then email or phone you with the firm's name.
- Nothing is passed on until you tell us to go ahead.
- The builder visits, measures up and prices the work. We will not send you marketing.