Extensions, lofts & refurbishments, done right by Shield Build.
A Crawley-based team with 20+ years’ experience, managing your project end-to-end — from extensions and loft conversions to kitchens, refurbishments and certified fire-door work. Finished to a standard you’ll be proud to show off, across Crawley, East Grinstead and the wider South East.
5.0 ★
Google reviews
500+
Projects delivered
Guaranteed
Workmanship backed in writing
- Fully Insured
- Band of Builders
- BS 8214 Fire Doors
- 20+ Years' Experience
- Building Regs Compliant
Building services across Crawley & West Sussex
From the first sketch to the final sign-off, one team handles everything — design, build, project management and finishing. Here’s where we add the most value.
Single & double-storey, wrap-around and rear extensions designed to add space, light and value — fully managed through planning and building regs.
Certified inspection, repair, installation and maintenance of fire doors to BS 8214 — keeping commercial premises, flats and HMOs legally compliant.
Turn unused roof space into a bedroom, office or en-suite. Dormer, hip-to-gable and Velux conversions built to maximise headroom and light.
Whole-home renovations and commercial conversions — including office-to-clinic transformations — managed start to finish, on time and on budget.
Full kitchen design and fit-out — from removing walls to plumbing, electrics, tiling and worktops, delivered by one accountable team.
From first call to final handover
A simple, transparent process designed to keep you informed and in control at every stage.
Free consultation
Tell us your ideas. We visit, measure up and talk through what's possible and realistic.
Clear written quote
A fixed, itemised quote with no hidden extras — and no obligation to go ahead.
Build & manage
Our team handles trades, regs and timelines, keeping you updated throughout.
Sign-off & aftercare
You only sign off when it's right — backed by our workmanship guarantee.
A safer pair of hands
Most builders are good at one part of the job. We’re built to handle the whole thing — and to be the people you’d happily recommend to a neighbour.
Genuinely local
Crawley-based, covering East Grinstead, Horley, Copthorne and the wider South East.
20+ years' experience
Two decades of extensions, conversions and commercial fit-outs you can verify.
Managed end-to-end
One point of contact and proper project management, so you always know what's next.
Insured & guaranteed
Fully insured work, backed by our written workmanship guarantee.
projects delivered
across the South
East
Don't take our word for it
★★★★★
Very professional service. Arrived on time and did a great job on our fire door and left the place like he was never there. Have already recommended him to my neighbours.
Neil Hazell
House Owner
Proudly serving Crawley & the surrounding areas
Based in West Sussex, we cover Crawley and the towns and villages around it. Don’t see yours listed? Just ask — we travel across the South East for the right project.
- Crawley
- East Grinstead
- Horley
- Crawley Down
- Copthorne
- Felbridge
- Turners Hill
- Ardingly
- Smallfield
- Ashurstwood
Questions? Andrew's got answers.
Can’t find what you’re looking for? Speak to Andrew and the team directly — no call centres, no pressure.
Do I need a certified fire door inspection?
If you own or manage commercial premises, blocks of flats or HMOs, the Fire Safety (England) Regulations and Building Safety Act place a legal duty on the responsible person to keep fire doors maintained and recorded. We provide certified inspection and servicing to BS 8214.
How much does a house extension cost?
Costs vary with size, specification and groundworks, but we give a clear, fixed written quote after a free, no-obligation consultation. Once you’re happy to go ahead, we set out a clear schedule of stage payments in writing.
Are you insured and accredited?
Yes. Shield Build is fully insured, carries over 20 years of building experience, and is a proud member of the Band of Builders community.
How do payments work?
We agree a clear schedule of stage payments in writing before any work starts, tied to project milestones — so you always know exactly what’s due and when. No vague invoicing and no surprises.
Which areas do you cover?
We’re based in Crawley and cover the surrounding towns — East Grinstead, Horley, Crawley Down, Copthorne, Felbridge, Turners Hill, Ardingly, Smallfield and Ashurstwood — and travel across the wider South East for the right project.