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Diamond Seal UK Ltd, Chorley – Expert Builders For All Building Services.

Diamond Seal UK Ltd, Chorley – Trusted Family-Run Builders, Damp Proofing Specialists and Roofing Experts.

Call today for reliable building services.

01257 650201

We Are Specialists

Quality Workmanship

Family-Run Business

About Our Company

For over 35 years, our family-run team has provided expert building solutions across Chorley and Lancashire. From Roofing Services and Plumbing Services to damp proofing, kitchen installations, extensions, refurbishments, and property maintenance, we deliver reliable results tailored to your needs. Every project, big or small, is carried out with honesty, hard work, and a commitment to quality. As proud members of the Safe Trader Scheme with Lancashire Council and Trading Standards, we ensure lasting solutions you can trust. Call today and let experienced builders take the stress out of your property improvements.

01257 650201

A clean, modern kitchen with light gray cabinets

What We Offer

A building being renovated with scaffolding and a work truck

Building Work And Maintenance

Reliable construction, repairs, and upkeep tailored to your property needs.

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Early phase of extension walls being constructed

Extensions & Refurbishments

Transform your space with bespoke extensions and modern refurbishments.

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A newly tiled roof with scaffolding on the side

Roofing Services

Expert roof installation, repairs, and maintenance to protect your home.

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A bathroom with gray tile walls and a white toilet

Kitchen And Bathroom Installations

Stylish, practical, and high-quality kitchen and bathroom fittings.

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A male plumber working on a sink's pipes

Plumbing Services

From leaks to full system installations, we cover all your plumbing needs.

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Damp Proofing

Effective damp solutions to protect your property and prevent future damage.

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Why Choose Us?

Damp proofing approved specialists for long-lasting protection.
Family-run business with a personal touch.
Wide range of services – from plumbing to refurbishments.
Safe Trader Scheme members – trusted by Lancashire Council.
Customer-focused approach – reliable, transparent, and professional.
Highly recommended – 100% positive reviews on Facebook.

Get In Touch

Three white vans from Diamond Seal UK Builders

"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 hardworking. 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!"

- Hayley

Call Our Experts Today

Speak Directly With Skilled Builders Who Can Handle Every Aspect Of Your Project. Call Now For Fast, Professional And Reliable Building Services.

01257 650201

Outside of house with new roof being installed