Expert craftsmanship from over 50 years of combined experience. We preserve the beauty of traditional sash windows while bringing them firmly into the 21st century.
About Us
At Conservation Sash Windows, we specialise in exactly what our name says. We're experts in replacing double-glazed sash windows in listed buildings or houses in conservation areas, where preservation and aesthetics matter even more than elsewhere.
You don't have to live in a conservation area to benefit from our expertise, or even have a sash window. We offer a range of services for all kinds of doors and windows, applying the same values and attention to detail whether your home was built in the 16th century or the 21st.
Learn More About UsOur Values
Our craftsmanship, from more than 50 years of combined experience in the building and construction industry, meets the exacting regulations for preserving windows in listed buildings and conservation areas.
We use the best double-glazing and draught-excluding techniques so you can enjoy the heritage of the past without its inconveniences. Traditional aesthetics, modern performance.
Whether your home is centuries old or brand new, every Conservation Sash Windows customer receives the same exceptional standard of work. No customer settles for second-best.
What We Do
We replace double-glazed sash windows using your existing box frames — 33mm double-glazed sashes, 125mm box width, fully compliant with Part L building regulation.
Our work meets the exacting regulations for windows in listed buildings and conservation areas, retaining the character of your home while delivering modern energy-saving performance.
We eliminate draughts, rattles, and noise using the latest draught-excluding technology — dramatically improving thermal performance without compromising aesthetics.
A complete shutter range and bespoke door replacements, applying the same traditional values of craftsmanship across every project.
We Can Help
Whatever issue you're experiencing with your windows, we have the expertise and experience to solve it. Click any problem below to get in touch.
Get in touch for a free, no-obligation quote. We'll come to you, assess your windows, and provide a clear, detailed proposal.
Make an EnquiryTestimonials
"The quality of their product is very good. I had my sash windows refurbished — they were in a dire condition, rotting and non-operational. They look new now. Quick turnaround, great communication, well set out quotes. Would definitely recommend."
"We were surprised when Gary came over that we could get top end hardwood windows in our budget. The guys took us through each stage of the work. Real attention to detail. Great chaps. Lovely new windows!"
"Gary and his team delivered excellent quality windows which look brilliant. We were really happy with every aspect of the job and wouldn't hesitate to recommend The Conservation Sash Window Company."
"The team did an outstanding job. New beading and felt created good seals all around; the reduction in draughts and rattling is remarkable and we're able to run our boiler at a much lower temperature setting."
"Work completed on time, on budget and to an exceptionally high standard. They specialise in double glazing period windows and use high spec materials — yet their prices compare favourably with other firms."
"Trustworthy. High Quality. Friendly. Had a great experience with Gary — delivered both a great service and product. Would highly recommend to anyone and will be looking to work with him in the future!"
FAQs
Everything you need to know about our sash window services. Can't find your answer? Get in touch and we'll be happy to help.
Accreditations
We are a CERTASS approved window & door installer and your bespoke windows are crafted in UK workshops.
