Lifetime Guarantee
Our Lifetime Guarantee
Built on quality products, expert installation and over 40 years of trust.
When investing in your home, long-term reliability matters just as much as appearance and price. At Keswick Superglaze, we believe customers should have complete confidence that the products installed today will continue performing for many years to come.
Unbeatable, Industry-Leading Guarantee
We are proud to offer our industry-leading Lifetime Guarantee on qualifying products – a level of reassurance only possible through premium products, meticulous installation standards and over 40 years of trusted trading throughout Cumbria.
Why Our Guarantee Sets The Standard
Backed By Over 40 Years of Trust
A long-standing local company you can rely on.
Preminum Products
Carefully selected systems from leading manufacturers.
Expert Installation
Meticulous workmanship & attention to detail by our experienced team.
Ongoing Support
We’re here for the long term, not just the day we install.
Included Within Our Lifetime Guarantee
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All uPVC Windows
All of our uPVC windows are included within our Lifetime Guarantee.
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Hinges, Locks & Mechanisms
All of our hinges, locks and mechanisms are included within our Lifetime Guarantee.
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Infinity Doors
All of our Infinity doors are included within our Lifetime Guarantee.
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Handles & Hardware
All of our handles and hardware are included within our Lifetime Guarantee.
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Composite Doors
All of our composite doors are included within our Lifetime Guarantee.
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Operational Adjustments
All operational adjustments are included within our Lifetime Guarantee.
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Frames & Sashes
All frames and sashes are included within our Lifetime Guarantee.
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Weatherseals & Gaskets
All weatherseals & gaskets are included within our Lifetime Guarantee.
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Glass & Sealed Units
All glass & sealed units are included within our Lifetime Guarantee.
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Manufacturer Defects & Workmanship
All manufacturer defects and workmanship are included within our Lifetime Guarantee.
Designed For Life-Long Performance
Just like any high-performance product, windows and doors benefit from periodic servicing to ensure they continue operating at their best over the long term. To maintain eligibility for our lifetime guarantee, qualifying products require scheduled maintenance inspections carried out by our expert team here at Keswick Superglaze after:
- 5 Years
- 7 Years
- 9 Years
- Annually after 11 years onwards
*LIFETIME GUARANTEE MUST BE WRITTEN ON FINAL CONTRACT. EXCLUDES CONSERVATORIES OR FRAMES UNDER A SOLID ROOF AND ALUMINIUM PRODUCTS.*
Lifetime Guarantee
Are you ready to invest in your home with high quality products guaranteed to last a lifetime?
At Keswick Superglaze, we’re committed to enhancing homes across Cumbria and our Lifetime Guarantee reinstates our 40 year commitment.
Rated by our customers
From 16 verified reviews
From start to finish everything was perfect. Simon Mumberson was our salesman and he fantastic a really great guy. We got 6 windows and 3 doors and a roller garage door fitted and everything went perfectly and looks great.
We are so pleased with our new roof fitted by Keswick Superglaze. With practical and experienced advice from Craig and Simon we decided on a solid warm roof with two large glass panels. All in all, money well spent!