Websites for extension builders
Websites for extension builders: the site that wins the rear extension, not the porch
An extension is the job most builders want and the one homeowners research hardest before they ring. They want to know whether it needs planning, what it costs, how long the kitchen is out of action, and whether you have done one like theirs. A site that answers those four things, with photos of the one you did last month, gets the enquiry. This is that site.

Sound familiar?
Why extension specialists come to us
- The last three enquiries were for a porch, a wall and 'a small job', and the extension you wanted went to a firm with a nicer website.
- Your best work is on your phone and in a WhatsApp group with the client, and nowhere a stranger can see it.
- Homeowners ask you whether they need planning, and your site does not answer, so they ask a firm whose site does.
- You are on Checkatrade, the lead is shared with three others, and the cheapest quote wins.
- You have a website. It has one page, a stock photo of a hard hat, and a form that goes to an inbox nobody checks.
The pages
One page per type of extension, because that is how people search
- Single-storey rear
- The most searched extension and the most quoted. A page on what is involved, permitted development limits, the kitchen-diner most people want, and three projects with before-and-after photos.
- Double-storey and wraparound
- Bigger job, bigger checks: planning, party wall, structural calculations, the neighbour. The page that explains these calmly is the one a nervous homeowner trusts.
- Side return and infill
- Terraces and semis in towns. Small footprint, awkward access, big change to the kitchen. A page that shows you have done the awkward ones.
- Garage conversions and garden rooms
- Lower cost, quicker, often permitted development. A good entry job that the same homeowner comes back from for the extension.
The answers
What the site answers before the homeowner rings
These are the questions in every first phone call. Answered on the page, in your words, they save the call for the ones who have already decided you are the firm.
- Whether the extension needs planning permission or falls under permitted development, in plain English, with the limits
- What the Party Wall Act means when the extension is on the boundary
- Building Regulations and who inspects: your approved inspector or the council
- What moves the price: size, structural work, glazing, drainage, the finish, and whether the kitchen is included
- How long a rear extension takes and what happens to the kitchen in the meantime
A project page, the way we write it
- The brief: what the client wanted and why (a kitchen-diner for a family of five)
- The awkward part: the drain run, the neighbour, the steel, the weather
- The timeline: start to handover, in weeks, honestly
- Six to ten photos: before from the garden, during, after from the same spot
- The client's review, quoted from Google, with the date
- Town and month in the caption, which is what the search reads
After the site
“Extension builders” with a town on the end is earned over months
The site gets you found by name and for the town. The extension searches are competitive in most towns and are won by adding a project a month, asking for a review at every handover, and the profile listing extensions first. That is the monthly work, and every website package on the pricing page includes its first month free.
Questions builders ask us
Why a separate page per extension type?
Because homeowners search for the type: single-storey rear, double-storey, side return, wraparound. Each search deserves the page that answers it, with photos of that job, rather than one page that says extensions in general.
Can the site show prices?
It should show the logic of the price: what a rear extension of a given size starts from in your area and what pushes it up. A from-figure filters the price-checkers and keeps the serious enquiries. Where you prefer not to, the page explains what decides it, which is nearly as good.
We do everything, not just extensions. Does this still fit?
Yes. The extension pages sit alongside the others on the builder site. Specialising on the page does not mean specialising in the business; it means each search lands on a page about that job.
How do I get more extension enquiries and fewer small jobs?
Pages, photos and the profile all pointing at extensions. A site with an extensions page, three projects and a Google profile listing extensions as the primary service attracts extension enquiries. One that says 'all building work' attracts everything, mostly small.
Get the extension enquiries you are already good enough for
Send us your site, or say you have none, and your town. You get a review of what a homeowner planning an extension sees, and a quote for the site that answers them.