Large semi-detached brick house with scaffolding and a new roof installation

Builders – 35 years' expertise – Chorley

Name: Diamond Seal UK Ltd
Address: Hut Lane, Heath Charnock, ENG, PR6 9FP, GB
Telephone: 01257 650201

Damp proofing specialists. Fast quotes. Family-run business.

Call now to discuss your project!

Call Us: 01257 650201

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Why clients choose us

Safe Trader Scheme approved specialists

Certified by Lancashire County Council and Trading Standards for quality and reliability.

Comprehensive building and roofing services

rom extensions and new builds to flat roofing and storm damage repairs, all under one roof.

Emergency plumbing available 24/7

Fast-response call-outs ensuring urgent plumbing issues are resolved with minimum disruption.

Three white Diamond Seal UK Ltd company vans parked in a row

What we offer

Red brick house exterior with a white door and small extension

Building work & maintenance

From house extensions to emergency repairs, we deliver reliable building and maintenance solutions tailored to your needs.

Building Work & Maintenance

Scaffolding on a house undergoing an extension project

Extensions & refurbishments

Transform your space with bespoke extensions and high-quality refurbishments, designed to enhance your home or business.

Extensions & Refurbishments

Roofer installing new grey tiles on a residential roof

Roofing Services

Expert roofing solutions, including installations, repairs, and cleaning to keep your property protected and looking its best.

Roofing services

Modern kitchen corner with glossy white cabinets

Kitchen & bathroom installations

Stylish and functional kitchens and bathrooms, installed with precision and care to suit your lifestyle.

Kitchen & Bathroom Installations

Silver kitchen tap and sink in front of a window

Plumbing services

Fast-response plumbing for emergencies and routine maintenance, ensuring your systems run smoothly.

Plumbing Services

Damp proofing

Protect your property with professional damp-proofing solutions, safeguarding against rising damp, mould, and structural damage.

Damp Proofing

Welcome to Diamond Seal UK Ltd

Diamond Seal UK Ltd is a trusted builder in Chorley, near Bolton, delivering professional building, plumbing, and maintenance services across the North West and throughout the UK. As part of the Safe Trader Scheme with Lancashire County Council and Trading Standards, we are committed to quality and reliability. We aim to visit within 48 hours and provide a detailed quote within a week. Our services cover damp proofing, flat and steel roofing, rubber roofing, roof repairs, conversions, cleaning, leadwork, and storm damage repairs, alongside plumbing, uPVC fitting, kitchen and bathroom installations, refurbishments, building extensions, new builds, roof windows, trusses, and industrial roofing.

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Roofer in black workwear fixing tiles on a pitched roof

Side view of a large red brick house with extensive scaffolding

Client Testimonials

- Hayley Williams

Diamond Seal have repaired our chimney, our leaky toilet and have just replaced all of our windows. They've even fixed a few things for free! They have also done a lot of work on our next door neighbours house, all of which has been completed to an excellent standard. All of the lads have been polite, professional and hard working. They've tidied up after themselves and have gone out of their way to make sure everything is right. I will definitely be using again and recommending to everyone who needs work completing!

Complete building, plumbing and property maintenance services

We offer a comprehensive range of services to cover every aspect of your property. From building extensions, refurbishments, and new builds to kitchen and bathroom installations, we deliver with care. As roofing specialists, we handle flat roofs, rubber and steel roofing, repairs, conversions, trusses, roof windows, cleaning, and leadwork. Our approved damp proofing protects your property long term. We also provide emergency plumbing, general repairs, and ongoing maintenance to keep your property safe and functional.

Contact Our Team

Why choose Diamond Seal UK Ltd?

35 years of experience: A trusted name in Chorley and beyond.
Fast response times: Visits within 48 hours and quotes in a week.
Wide-ranging expertise: From damp proofing to full property refurbishments.
Safe Trader Scheme approved: Part of Lancashire County Council and Trading Standards.
Customer-focused service: Transparent, reliable, and tailored to your needs.

Trusted builders with proven expertise

Call us today to start your project with confidence!