Your Trusted Local Glazing Experts

Premium uPVC and Aluminium Windows, Doors & Glazing Solutions — FENSA Registered and Trusted Across the South East

Who We Are

At M25 Windows, we pride ourselves on delivering exceptional glazing solutions with a personal touch. With more than 20 years of hands-on experience in the industry, our team has earned a strong reputation for quality craftsmanship, professional service, and long-lasting results.

Based in London and serving the entire M25 corridor and surrounding counties, we specialise in the design, supply and expert installation of uPVC and aluminium windows, doors, and bifold systems. Whether you’re improving your home’s energy efficiency or adding style and value to a commercial property, we’re here to make it happen — reliably, affordably, and with minimal disruption.

Why We’re Different

We’re not a call centre or a faceless chain — we’re a dedicated team of glazing specialists who take pride in every project, big or small. From initial enquiry to final fitting, you'll deal with knowledgeable professionals who understand your needs and offer honest advice based on years of experience.

FENSA Registered Installers

All our work is carried out to the highest standards and fully compliant with building regulations.

End-to-End Service

From free survey and design consultation through to manufacture and final fitting — we handle everything in-house.

Tailored Solutions

Every property is different. We offer bespoke glazing packages designed to match your building's style, performance goals, and budget.

Aftercare & Peace of Mind

We stand by our work. All installations are backed by full product warranties and comprehensive aftercare support.

Our Mission

Our mission is simple: to combine high-performance glazing products with outstanding customer service, ensuring that every installation enhances your home’s appearance, comfort, and value.

Areas We Cover

We serve customers throughout:

Looking for window and door specialists near you? We offer fast, flexible appointments and free quotations.

Contact Us Now