If someone says it can't be fixed, give me a call!

I always try to "Repair before Replace". UPVC window and door Service Engineer. 25 Years in the trade.

What I Offer

Expert UPVC & Glass Solutions for Your Home

With years of hands-on experience, I provide reliable, professional services to keep your windows, doors, and glass in perfect condition. As an independent specialist, every job is handled with care, precision, and a personal touch.

Whether it’s a quick repair or a full installation, I aim to deliver quality workmanship at a fair price — and always with friendly, honest advice.

PROFESSIONAL APPROACH

Quality Work with a Personal Touch

Every repair, installation, or replacement is carried out with care and precision, using the right tools and materials to get the job done properly the first time. Your satisfaction is my priority.

At Richard Knowles UPVC and Glass Specialist, I take pride in delivering reliable, high-quality workmanship on every job — no shortcuts, no rushed finishes. Working independently means you deal directly with me from start to finish, ensuring clear communication, attention to detail, and a friendly, trustworthy service.

Testimonials

Trusted by Local Customers

I recently hired Richard to supply and fit my new front door. The service was excellent from start to finish. I would absolutely recommend Richard to all of my family and friends.

Claire Reynolds Llanharan, Wales

Richard just replaced our windows + doors.I am 100% satisfied with the service he delivered. Highly Recommended .

Joy Harvey Caerphilly, Wales

Reliable glass solutions.

Free quote

Design your Own Door

Try it out

Nxt-gen

The nxt-gen range combines innovation and simplicity with the performance you’d expect from a modern composite door. Characterised by sleek lines and a flush finish.

Signature

A quality front door says a lot about the owner. It makes a statement. It speaks of intent, character and aspiration. The signature range does exactly that with a more traditional finish.

Contemporary

This range takes how you think a front door should look and flips it, offering grooves, wood-grain effect and playful glass configurations to create statement door styles.