Double Glazing Installers in London
St. John's Hill
As a family owned professionally managed window company, Sash Windows London has built a reputation for delivering a high standard of customer service and satisfaction. Sash Windows London offer a friendly, reliable approach to customer service with highly experienced knowledgeable staff to guide you through every step of the process.
Our products have all been designed specifically to suit our customer's needs, from replicating heritage design in conservation areas to modern, contemporary products to suit today's market. We are committed to ensuring that high quality remains consistent throughout our entire product range & installation process. We are registered members of FENSA who regulate our installations, and also issue a GGFI 10-year insurance backed guarantee with every installation. We are rated as 5 stars on Check-a-Trade by our valued customers.
We understand replacing your windows is one of the biggest purchases in when improving your property. You want to ensure what is installed will not only look the part, but will last the test of time.This is why we replace the whole window and frame rather than restoring the existing box. Our sash windows come in a choice of engineered hardwood or redwood, to ensure strength and durability. The windows benefit from A-rated argon gas filled glazing and neoprene seals to all joins, eliminating cold and draughts. Our products come factory sprayed with micro-porous paint; because of this we are able to offer a 10 year guarantee on the paint finish.
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“PROVISION AND INSTALLATION OF 2 PVC SASH WINDOWS: VERY GOOD POLITE EFFICIENT SERVICE FROM BEGINNING TO END. GOOD COMMUNICATION. HAD PERFORMED SIMILAR JOB FOR UPSTAIRS FLAT LAST YEAR SO CAME RECOMMENDED.”
MS GREEN, SOUTH LONDON
“EXCELLENT SERVICE FROM THE THREE PEOPLE I MET, PLUS THOSE ON THE PHONE, I WOULD RECOMMEND YOUR COMPANY.”
SUSYN ANDREWS, DEVON
“3 X TIMBER SASHES, 1 X TIMBER CASEMENT BAY: A JOB WELL DONE, EFFICIENTLY PROFESSIONALLY WHICH RESULTS IN ULTIMATE CUSTOMER SATISFACTION.”
MR FORSYTH, WEST LONDON
“INSTALLED NEW WINDOWS AND CLEARED UP AFTERWARDS: DID A GREAT JOB – PROBLEMS AROSE DUE TO OLD WINDOWS, WHICH THEY RESOLVED PROFESSIONALLY. PERFECT CLEAR UP AFTERWARDS TOO. LOVELY PEOPLE.”
MRS PAULA PRYNN, SOUTH LONDON
Excellent service all round - admin, quote and installation. Very competitive pricing and quality workmanship
William Luckman, London
Lovely windows, well priced, installed quickly by a very friendly and tidy team. Will be getting them back in the next year to replace other windows
Mr Oliver Lewis, Kingston Upon Thames
Did a great job - problems arose due to old windows, which they resolved professionally. Perfect clear up afterwards too. Lovely people.
Mrs Paula Prynn, London
Excellent service from quote to final installation, all polite and expert tradesmen, competitive quote.
Miss Angela Clarke, London
Very pleased with the installation and quality of the windows. The installation team was professional, courteous and tidied up after themselves. Unfortunately the barrel in the fitch lock was broken but a replacement lock was fitted within 3 working days with no problems or hassles. Excellent job and very happy! Thanks!
Mr Jonny, London
Testimonials are added by the business owner and are not independently verified.
Monday to Saturday: 9am - 5pm