Marketing for home extension firms in Sevenoaks.

Sevenoaks is a £65k–£120k+ extension patch. Average house price around £710k, big detached stock across Kippington, Chevening, Ide Hill, Weald and Seal, and homeowners who are comfortable spending proper money on a proper build. You're mostly quoting side-return and wraparound extensions on Edwardian and 1930s detached stock, single-storey kitchen-diner extensions with lantern rooflights, and occasional double-storey side extensions where the plot width allows it. The TN13–TN15 postcodes cover a full mix — the town centre is listed-building heavy, while North Sevenoaks, Kemsing and Otford give you the bigger plots and the cleaner builds.

What catches firms out here: homeowners in Sevenoaks are used to running a proper design-then-build process, which means architects are often already engaged by the time they phone you. The conversation isn't "can you design us something?" — it's "can you price against these drawings without it going £20k over?" That changes which marketing signals actually convert. Reviews that name the architect practice, case studies with a drawings sheet attached, and a quote turnaround under 7 days are worth more than a thousand "contact us" CTAs.

Three tactics, in priority order.

**One: targeted content that names the architects you've worked with.** Every extension firm we talk to in Sevenoaks has worked with two or three local architect practices — Design Storey, Morph, Concept Architectural, whoever — and never mentions it on their website. Homeowners searching "extension builder Sevenoaks" are often phoning their architect for a recommendation first. Be the firm the architect already mentions. A simple "Who we've built for" page with practice names, job types, and before-and-afters is more persuasive than any sales copy you'll ever write. Architects update their Instagram weekly; tag them and the algorithm does the work.

**Two: Google Business Profile focused on the right search intent.** Sevenoaks homeowners don't search "cheap extension Sevenoaks". They search "extension builder Sevenoaks", "wraparound extension TN13", "single storey extension Kent", and they click through to compare four firms. Your profile needs photos of wraparound extensions with lantern roofs — not photos of a finished driveway. Service area: Sevenoaks, Otford, Kemsing, Weald, Westerham, Ide Hill, plus TN13–TN15. Category: General Contractor plus Home Builder. Weekly posts should reference real jobs by street-level description ("wraparound extension on a 1930s detached off Pilgrims Way this week").

**Three: a proper quote-stage website, not a brochure.** Most Sevenoaks extension firms have a website that hasn't been touched since 2017. What they need is a fast, trust-heavy site with a dozen completed projects shown like case studies: plot size, architect credit, steelwork summary, timeline, final cost. Homeowners paying £90k for a build want to see the site the way a structural engineer would — detail, sequence, accountability. That's what gets you shortlisted past the cheapest price. If you're turning away £60k jobs because your lead time is three months and you're still getting out-quoted on the bigger ones, your website is doing less work than your reputation.

Three moves, 30-day horizon.

**Build a "Recent Projects" wall on your site with ten proper case studies.** Each one: photo before, photo after, architect if applicable, brief (what the homeowner wanted), scope (what you built), timeline, honest budget range. This is the single most valuable marketing asset an extension firm can own in a town like Sevenoaks. It's also the thing most firms don't do because it feels like admin. It isn't admin. It's the pipeline.

**Rebuild your Google Business Profile and start a weekly post habit.** Photos with captions, service area tightened to TN13–TN15, Q&A seeded with the five questions every homeowner asks (party wall, foundations, planning vs PD, VAT on builds, guarantee period). Two evenings, then 20 minutes a week forever.

**Get on the referral radar of three Sevenoaks architects.** Send them the case-study wall. Take them for coffee. Tell them you can price anything they draw inside 7 working days at a fixed fee for the first job. Architects quietly run the extension market in Sevenoaks. If you're not on their mental shortlist, you're chasing cold homeowners against firms who already are.

Worth a 30-minute call about your TN13–TN15 pipeline? We'll walk through your current marketing and tell you where it's leaking jobs. No pitch deck. No pressure. If we can help, we'll say how. If we can't, we'll tell you who's worth a look locally.