About Lancashire Double Glazing
A trusted family-run business since 1988
Lancashire Double Glazing is a long‑established, family‑run home improvement company proudly serving homeowners across Lancashire and the Northwest. Founded in 1988 by our Managing Director, the business was built on strong family values – quality craftsmanship, honesty, fairness, and genuine customer care – principles that continue to guide us today.
We understand that every home improvement project is personal. Our customers are homeowners who place their trust in us, and we take that responsibility seriously. That is why we combine high‑quality products with clear communication, dependable service, and ongoing aftercare to ensure complete peace of mind.
From our head office in Preston, we have grown steadily while staying true to our family roots. Over the years, we have manufactured more than 2 million frames and completed over 600,000 installations across the region – each one backed by a comprehensive guarantee.
Our range includes windows, doors, conservatories, extensions, and garden rooms, all expertly made and professionally installed to enhance homes throughout Lancashire and the Northwest.
Nearly four decades on, our reputation continues to be built on word‑of‑mouth recommendations and repeat customers – something we are especially proud of as a family business that puts people first.
Why Homeowners Choose Lancashire Double Glazing
As a family‑run business that has become one of the most popular and trusted home improvement companies in Lancashire and the wider Northwest, our success has always been built on one simple principle: people come first.
We do not see our customers as numbers or transactions. We see them as homeowners who have placed their trust in a local, family business. That trust matters to us. It means delivering the same level of quality, care, and service that we would expect in our own homes.
This customer‑first approach is reflected in every part of our company – from the premium products we manufacture and install, to the professionalism of our team, and the reliable aftercare service we provide long after installation is complete.
Our reputation across Lancashire has been earned through consistency, integrity, and a genuine commitment to doing the job properly – values that remain at the heart of our family business today.
Recommended by Families Across Lancashire
More than 70% of our work comes from personal recommendations – something we are incredibly proud of as a family business.
Word‑of‑mouth referrals are the greatest compliment we can receive. They reflect the trust we have built with homeowners across Lancashire and the wider Northwest over more than three decades.
As a proud local business, we remain firmly committed to the principles that have shaped our success: honesty, quality craftsmanship, fair pricing, and exceptional customer care. These values have helped establish Lancashire Double Glazing as a well‑known and respected name throughout the region – not just as a company, but as a trusted part of the local community.
Looking ahead, our commitment remains the same. We will continue to provide high‑quality windows, doors, conservatories, extensions, and garden rooms, all expertly manufactured and professionally installed. Every project is completed with care, attention to detail, and long‑term guarantees – ensuring our customers receive outstanding value as well as peace of mind.
As a family business, our reputation is personal. That is why we stand behind every installation and continue to deliver the quality, service, and competitive pricing that homeowners across Lancashire have come to expect.
A Fully Managed, Turnkey Service
We do not just supply and install – we manage the entire process for you. That includes SAP and U‑value calculations, structural engineer calculations, building control coordination, and complete roof system specifications. In short, we operate as a true turnkey extension specialist rather than simply a window company.
For our customers, this removes many of the more complex and time‑consuming elements of a project – no chasing structural engineers, no coordinating technical paperwork, no handling building control queries, insulation compliance, or steel revisions yourself.
Modern extensions, particularly those featuring warm roof systems and large aluminium openings, can involve detailed technical requirements. By organising structural calculations, thermal assessments, and council submissions on your behalf, we ensure everything is professionally managed, compliant, and stress‑free from start to finish.
