How Sashmate® Was Born

Sashmate® was created to solve real-world window repair challenges, born from hands-on experience, driven by safety, and engineered to help professionals work faster, safer and smarter.

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Designed by Experience, Not Theory

Sashmate® was invented and designed by Daniel Cheddie, a window repair specialist who repeatedly faced the dangers of repairing heavy externally glazed windows while working alone and without safe internal support.

After experiencing near-misses, damaged windows and inefficient workarounds, Daniel set out to create a safer solution. The result was Sashmate®—a patented clamp and brace system designed by a tradesman, for tradesmen.

Who We've Worked With

100% of online testimonials received said the Sashmate tools:

  • Were very easy to work with
  • Were used for repairs to glass unit, espagnolette and friction stay repairs
  • Had reduced the need for ladders, scaffolding and a second fitter
  • Had assissted to overcome ‘working at height issues’
  • Had saved companies time and money

And all 100% said that they would definitely recommend the Sashmate tools!!

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Why Choose Sashmate®

Designed by an experienced glazing professional, Sashmate® eliminates working at height, reduces costs and dramatically improves safety, efficiency and professionalism across every window repair job.

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Work Safely From Inside

Eliminate ladders, scaffolding and dangerous external access.

One Person, One Visit

Do the work of multiple operatives, alone.

Faster Job Completion

Complete window repairs quicker and easier

Protect People and Property

Reduce injury risk and prevent costly window damage.

A Commitment to Safety and Innovation

Daniel Cheddie’s background includes decades in the glazing industry and 24 years as a firefighter, giving him a unique perspective on risk, prevention and the consequences of unsafe working practices.

As Founder and CEO of Glazesafe, Daniel has developed award-winning systems that protect workers and improve efficiency. Sashmate® is now trusted by professionals, councils and organisations across the UK and Ireland.

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What Our Customers Say

Trusted daily by professional repairmen, councils and companies who demand safer, faster and more profitable window repair solutions.

Brad Lovelace

Self employed fitter

Working on my own for different companies carrying out all sorts of repairs the Sashmate is a must have. It has got me out of trouble many times.

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David Gibbs

The Haverbury Housing Partnership

Works to replace friction hinges to first floor windows on heavy sashes are now much more cost effective as they can be completed from inside the property without the need...

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Sean Rickard. Key Solutions

Locksmiths

I recently purchased your product the sash mate, After some scepticism about how practical it would be and how quick it would take to get familiar with how it works....

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Martin. Main Operative

Building Maintenance Firms

Marshalls Building Contractors We have been using the Sashmate tools for nearly 4 years now and we are well pleased! The tools have got us out of trouble many many...

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Kevin Ede. Fenster Commercial Ltd

Double Glazing Companies

We’ve now been using the Sashmate for a couple of years and this excellent product more than paid for itself on the first job. A lot of our work involves...

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Dale Clements Repairs

Window Repair Specialists

Has made jobs easy and safer, especially on riveted windows because I now have the freedom of using both hands. I bought the tool because I had a job on...

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Frequently Asked Questions

Learn more about the people behind Sashmate®, our values and what makes our tools different.

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Get Started with Sashmate®

Whether you’re a locksmith, glazier or maintenance professional, discover how Sashmate® can transform the way you work, saving time, improving safety and increasing profitability.

  • Hertfordshire,
  • SG12 0JH
  • Uk







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