Cornwall Builders · 20+ Years Building Cornish Homes
Trusted Cornwall Builders for Premium Home Projects
L W Construction is a Cornwall-based building company with over 20 years' experience: extensions, new builds, renovations, structural work and block laying, domestic and commercial. One point of contact, £1 million public liability cover, 20+ five-star Google reviews. Free quotes turned around in 48 hours, no obligation, no chasing.
Featured new build
Parc an Peath, West Cornwall
A new family home we built from the ground up in West Cornwall. Timber-clad gables, a slate roof with solar panels and a glass balcony on the garden side. Inside, vaulted open-plan living, an oak galleried staircase and a full set of finished kitchens and bathrooms.
- New build, ground up
- Vaulted open-plan living
- Oak galleried staircase
- Slate roof with solar
The Cornwall Builder Problem
A lot of people who call us have already had a bad run. They rang three Cornwall builders, one never called back, one turned up late and was never heard from again, and the third sent a one-line price by text. Months pass and the job still hasn't moved.
It's not always about cost. It's that it's hard to find a builder who picks up the phone, turns up when they said they would, prices the job honestly, and keeps the site tidy. The things we hear most are mid-build silence, vague quotes that don't say what's included, low prices that creep up with "extras", and no proof of insurance. We work the opposite way on all four, and that's why most of our work still comes from word of mouth.
What We Do Differently
Every project is quoted, planned, and built by Luke Walker personally. You call his mobile, he picks up, and the trades come through him. Nobody hiding behind a project manager three steps removed from the work. The price you're quoted is the price you pay: any change to scope gets a written price and your signature before anyone touches it. That's the part 20+ Cornwall homeowners actually write about in their reviews: the work is good, but the way the job is run is what they remember.
Recent Cornwall Projects
Chilli Road, Illogan: two 2-bed new-build homes
Two new two-bedroom homes built ground-up at Chilli Road in Illogan: timber-frame construction, finished in Wildstone, with open-plan living, fitted kitchens, tiled bathrooms and finished rear patios. A complete new-build job from foundations through to a handover-ready finish.
Recent work also includes an annex extension and an attic conversion with dormer in Newlyn, decorative brickwork in Nancledra, chimney rebuilds, and block-laying contracts across Cornwall. See them all on the project portfolio.
Services We Offer Across Cornwall
We work across 34 services from foundations to finishing, domestic and commercial. These are the 12 we lead with. Every card links to a full page with process, price guidance, materials, and FAQs.
New Builds
ground-up homes, foundations to keys.
House Extensions
single-storey, two-storey, wrap-around.
Bricklaying & Blockwork
Luke's NVQ + Diploma L3 specialism.
22 more services (concrete works, RSJ installation, insurance repair and more) are on the services index page.
Why Choose L W Construction
Cornwall-qualified, Cornwall-based
Luke lives in Heamoor and works from Looe to St Ives. After 20+ years on these sites he knows which postcodes mean granite, which mean tin-mining backfill, the lime-mortar terrace stock in older Penzance and Truro streets, and which Cornwall Council planning officers pick up the phone. That local knowledge sits behind every quote.
End-to-end coverage
34 services means you don't chase three different contractors and hope they coordinate. Foundations to finishing, one point of contact, domestic and commercial.
Verifiable credentials
NVQ Level 3 + Diploma Level 3 in Bricklaying. £1 million Public Liability via Zurich Tradesman Insurance. Over 20 years' experience in construction. 5.0 stars from 20+ Google reviews.
Honest about scope
We do extensions, new builds, renovations, structural work, block laying and the trades around them. We don't claim industrial chimney shafts, specialist deep excavation beyond 2m, or large-scale demolition. If a job isn't for us, we'll say so up front and tell you who to call. The 34 services we list are the 34 we do.
Quoted price is final
Variations documented in writing before work happens. No surprise invoices. 12-month workmanship warranty on completion.
Cornwall homeowners come back
Most of our work is word-of-mouth from previous customers. That doesn't happen by accident.
Finished and photographed
Inside Parc an Peath
The hall, the kitchen, the living spaces and the bathrooms of the West Cornwall new build, photographed on completion.
How We Work
You get in touch
Call or fill in the form. I'll reply within 4 working hours (Mon-Fri 8am-5pm).
Free site survey
I come to your property, measure up, talk through the scope, advise honestly on what's possible and what isn't.
Written quote within 48 hours
Itemised. No hidden extras. No "TBC" surprises.
You agree the start date
Deposit only on materials when work begins.
We build it
Daily clean-down. Variations in writing. One mobile number you can call if anything's off.
Sign-off + 12-month workmanship warranty
We answer the phone after the job too.
What Cornwall Homeowners Say
5.0 stars from 20+ Google reviews. Every review is verifiable against the live Google Business Profile, including reviewer name, date, and full text.
Areas We Cover Across Cornwall
We're based in Heamoor on the edge of Penzance, and we work across 14 Cornwall towns from the far west to the south coast.
Penzance: our home base, covered from this page
Also covered: Penryn, St Agnes, Perranporth, Fowey, Looe, Redruth. See every Cornwall town we cover →
About Luke
L W Construction is a Cornwall building company with over 20 years' experience: extensions, new builds, renovations, structural work and block laying, domestic and commercial. The work is backed by NVQ Level 3 and Diploma Level 3 in Bricklaying. Based near Penzance, working right across the county.
FAQs
Are you fully insured?
Yes. £1,000,000 Public Liability via Zurich Tradesman Insurance (Trade Direct, policy reference GQ638300/223602). We also carry £100,000 Professional Indemnity and £100,000 Financial Loss cover. Insurance certificate available on request.
How much experience do you have?
Over 20 years in the construction industry, across domestic and commercial projects in Cornwall: extensions, new builds, renovations, structural work and block laying, with continuous public liability insurance throughout.
Are you qualified?
Yes. NVQ Level 3 and Diploma Level 3 in Bricklaying (both nationally recognised), backing over 20 years of construction work across Cornwall.
Do you charge for a quote?
No. Quotes are free and no-obligation. We come to site, take measurements, discuss the scope, and send a written quote within 48 hours on most jobs.
How much does an extension cost in Cornwall?
It depends on size, finish, and how much structural work is involved. A single-storey extension sits in a different bracket to a two-storey or wrap-around with steels. Rather than guess a number, we come to site, look at the job, and send a written fixed-price quote that itemises groundworks, structure, roof, and finishing so you can see exactly what you're paying for. Every variation is documented in writing before any extra work happens.
Got a Cornwall project in mind? Get a free quote.
No pressure, no obligation. Free site survey, written quote in 48 hours, fixed price before we start.
L W Construction
Penzance, Cornwall
Phone: 07749 468160
Email: lukewalker1993@hotmail.com
Hours: Mon–Fri 08:00–17:00 · Sat 08:00–15:00 · Sun closed
Last updated: Thursday 24th September 2026