Windows & Doors Fitting
The right windows and doors don’t just look good — they make your home warmer, safer, quieter, and more efficient. At Knightstone Developments, we supply and install high-quality units that suit your property and perform brilliantly year-round. From clean replacements to full-frame upgrades, we make it easy to improve your home’s look, feel, and value.
Designed to Perform
We fit windows and doors that are built to last — and made to match your space. Whether you’re modernising with sleek aluminium frames or keeping the character with timber styles, we’ll guide you through the options and manage the installation with minimal disruption and maximum care.
Why Choose Knightstone?
Expert Installation
We don’t cut corners — just clean lines, secure fittings, and energy-efficient finishes on every project.
Tailored Advice
We take the time to understand your needs and recommend the right materials, glazing, and hardware to suit your property.
All Styles & Systems
From sash windows to bi-folds, front doors to French doors — we install it all with precision and care.
Neat, Hassle-Free Process
We protect your home, minimise mess, and work quickly and professionally so you can enjoy the results without the stress.
More Than a Fitting Job
Replacing your windows or doors isn’t just an upgrade — it’s a transformation. Better insulation, more natural light, and a fresh new look all make a real difference in how you live and feel at home. Whether you’re refreshing a single room or renovating the whole house, our team works to deliver the result you want with workmanship you can trust.
Client Testimonials
“Knightstone turned our dated kitchen into a modern, functional space we love spending time in. Reliable, friendly, and professional from start to finish.”
Sarah H.
Weston-super-Mare
“Our loft conversion is amazing — more space, more light, more value. Couldn’t have asked for a better experience.”
Jane Faber
Clevedon
“The whole team was fantastic. On time, clean site, beautiful results. Highly recommend!”
Emily T.
Worle
“Great service and Ian was able to fix the problem with our door in no time. Will be using Knightstone Developments in the future!”
Kevin Emery
Weston-super-Mare
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