Free Quotations

Fully Insured

35+ Years Experience

Safe Trader Approved

24/7 Emergency Plumbing

Create More Space With Trusted Local Builders

Diamond Seal UK Ltd provides expertly managed extension and refurbishment services for homeowners and commercial clients across Chorley and the surrounding areas.

Whether you are planning a larger kitchen, extra bedroom, home office, garage conversion or complete property renovation, our experienced team can manage the work from start to finish.

We focus on safe construction, practical layouts and high-quality finishes that improve the way your property looks, feels and functions.

Request A Free Quote

Looking for trusted roofing, building or property maintenance specialists in Chorley or the surrounding areas? Contact Diamond Seal UK Ltd today to discuss your project with our experienced team.

Why Choose Diamond Seal UK Ltd?

Choosing the right contractor is essential when investing in your property. At Diamond Seal UK Ltd, we combine over 35 years of experience with reliable workmanship, honest advice and a commitment to delivering high-quality results on every project.

Extension & Refurbishment Services

From initial preparation to the final finish, our team provides reliable support throughout every stage of your project.

Our Services Include:

What Our Customers Say

“Great service from Mike and his team, when we needed a leak in our roof fixed. The service was prompt and we were kept fully informed on what works were required.”

Rachel Salter

“Very professional service. Came as arranged. Although we were not at home during works, photos were sent to show us extent of damage and consequent repair...”

Diane Roberts

“Mike and the team did me a nice new Garden Gate. Always prompt, and Mike is friendly guy to deal with. Thanks. :)”

Rachel Salter

Refurbishments Designed Around Your Property

Every property is different, which is why we tailor each refurbishment or extension around your space, budget and long-term plans.

Our team works carefully to minimise disruption while maintaining high standards of workmanship throughout. From layout changes and structural work to kitchens, bathrooms and finishing details, we help bring your property plans to life.

Frequently Asked Questions

Below are some common questions about our extension and refurbishment services.
Do you build single and double-storey extensions?

Yes, we carry out both single and double-storey extensions, along with garage conversions, loft conversions and structural alterations.

Yes, we can manage complete refurbishments including building work, roofing, plumbing, kitchens, bathrooms and finishing work.

Yes, we carry out wall removals, steelwork and structural changes safely and in line with UK building regulations.

Yes, we provide free no-obligation quotations for extension and refurbishment projects.

Need Reliable Roofing Or Building Specialists?

Whether you need emergency roof repairs, a new extension, damp proofing or general property maintenance, Diamond Seal UK Ltd is here to help.
Speak to our experienced team today for trusted advice and a free no-obligation quote.