
Trusted Builders in Eastbourne For Every Corner of Your Home
Loft conversions, kitchens, bathrooms, plumbing and glazing — from minor property repairs to full turnkey transformations across Eastbourne & East Sussex for over 38 years.
What We Do
Every trade under one roof — supplied, managed and guaranteed by our own team.
Conversions & Roofs
- Loft Conversions
- Garage Conversions
- Porches & Conservatories
- Soffits & Fascia
Kitchens & Living
- Full Renovations
- Bespoke Kitchens
- Bedrooms & Storage
- Hardwood & Tile Flooring
Plumbing & Baths
- Bathrooms & Wet Rooms
- Plumbing & Heating
- Radiators & Boilers
- Shower Systems
Glazing & Decorating
- Windows & Doors
- Interior Decorating
- Exterior Decorating
- External Maintenance
The Cornerstone Difference
Serving Eastbourne & East Sussex with pride for 38+ years.
01
One Complete Team
We supply and manage every trade — plumbers, builders, decorators — so you don't have to chase contractors.
02
38+ Years Heritage
Family-owned since 1985, built on trust, honest advice, and repeat local customers.
03
Fully Insured Work
Every installation is backed by comprehensive public liability insurance and full quality guarantees.
04
Free On-Site Quote
No high-pressure sales tactics. We visit your property, discuss your options, and provide a clear quote.
Before & After
Drag the slider to see the transformation. These are illustrative examples of the standard of finish we deliver on every project.












Request a Free Quote
Inspired by the transformations above? Tell us about your project and we'll arrange a free, no-obligation on-site survey — or call us on 01323 800035.
What Our Customers Say
Homeowners across Eastbourne & East Sussex trust Cornerstone with their homes — here's why.
"Cornerstone turned our dusty loft into a beautiful master bedroom with an en-suite. One team handled everything from the structural work to the final decoration — we didn't lift a finger."
Sarah MitchellLoft Conversion • Eastbourne"We inherited a tired 1970s house and the team transformed it top to bottom. Clear quote, realistic schedule, and they kept the site tidy every single day. Genuinely couldn't fault them."
David ThompsonFull Renovation • Hailsham"After my husband's mobility became limited, they converted our bathroom into a walk-in wet room. They were kind, considerate and finished ahead of schedule — it's made such a difference."
Karen PriceBathroom & Wet Room • Polegate"The kitchen they fitted is the heart of our home now. Brilliant craftsmanship on the cabinets and tiling, and they kept us informed at every stage. Worth every penny."
James SullivanBespoke Kitchen • Seaford"Our old boiler gave up in December and they had a new one fitted within two days. Honest advice, fair price, and they even bled every radiator in the house before they left."
Linda HartleyPlumbing & Heating • Lewes"Nine windows and a new front door, all fitted with barely any disruption. The finish is excellent and you can tell they take pride in their work. I've already recommended them to my neighbour."
Mark BennettWindows & Doors • Hastings"They repainted our whole downstairs and hung new flooring, and the house feels brand new. Polite, punctual and left everywhere spotless at the end of each day."
Rachel OwensInterior Decorating • Uckfield"Started as a small enquiry and ended with a full garage conversion into a home office. Friendly family firm who do exactly what they say they will — refreshing in this trade."
Peter WallaceGarage Conversion • Bexhill-on-SeaAreas We Cover
Based in Old Town, Eastbourne, we cover homes within roughly 25–30 miles — across East Sussex and into West Sussex and Kent.
Just outside these areas? Give us a call — for larger renovation projects we're happy to travel further.
Frequently Asked Questions
Straight answers from a local family team — no jargon, no pressure.
Every property is different, so we don't quote blind. After a free on-site survey we give you a clear, fixed written quote covering all trades — no hidden extras. Book a discovery call and we'll talk through your space and budget first.
Ready to Upgrade Your Home?
No obligation • Friendly local advice • Free on-site survey
01323 80003514 Crown Street, Old Town, Eastbourne, East Sussex, BN21 1NX
