Sash window replacements in Chelsea by Golden Ratio
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Welcome to our website. Please read about what we do and don't be afraid to get in touch if you'd like to book.

@info@goldenratiojoinery.com

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Call on: 02034881695 Or try: 07507391329

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Expert Sash window replacements in Chelsea.

Preserve your home’s heritage with London’s master joiners. From historic timber splicing to thermal upgrades, we provide FENSA-certified excellence for your period windows.

✓ FENSA Registered ✓ Accoya® Specialists ✓ Free Site Surveys

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Golden Ratio Windows offers premium, FENSA-registered Sash Window Replacement services in Chelsea.

Sash Window Replacements in Chelsea

If your original timber frames are beyond repair, our craftsmen build beautiful timber sash window replacements. Designed to exactly match original profiles, our new windows blend seamlessly with your home's historic facade.

Sash window replacement in Chelsea

We work with premium Accoya® wood to provide maximum durability, backed by a 50-year warranty against wood rot. Chelsea is renowned for its premium Victorian red-brick townhouses and classic Georgian terraces. Windows in these conservation areas must meet strict Article 4 directives regarding glazing profile and timber finishes.

FENSA-Certified Windows Near King's Road, Sloane Square, and the Chelsea Embankment

Replacing sash windows in SW3 requires a thorough understanding of local planning directives. We manufacture custom double-glazed sash windows with slimline profiles, replicating historical joinery to ensure your property remains compliant and energy-efficient.

Upgrade your home with FENSA-approved sash window replacements in London. We serve Chelsea and the surrounding area with heritage-quality timber installations.

Weathered light brown brick building with four multi-paned Georgian windows and red brick accents.
Red brick building with two large, arched, multi-paned white windows
Tan brick building with three arched, multi-paned white windows and red brick arches
Close-up of a partially open white sash window
Interior view of a white sash window in a room with patterned wallpaper and wood flooring
Stacked wooden window frames and components
Bay window with three white sash windows overlooking a garden
Person working on a large wooden circular window frame on a workbench
Two tall white sash windows with partially closed shutters overlooking a garden
White sash window above a white bathtub in a bathroom with blue and white patterned tiles
Three white-framed windows showing an exterior view with brickwork
Bathroom with a white sash window, bathtub, and modern sink
A large, round-topped wooden window with multiple panes in a room under construction
Two new white Georgian sliding sash windows on a dark surface
White sash window in a room with green walls and wood floor, overlooking trees and buildings
Three white sash windows installed in a slate roof
Exterior of Pall Mall Barbers Fitzrovia with a red and white barber pole and the number 45 above the door
Partially open white casement window with multiple panes, showing an exterior view of trees
Bay window with three white sash windows overlooking a leafy exterior
White sash window showing a view of rooftops and a distant cityscape
Two white UPVC sash windows in a room with patterned wallpaper and wooden flooring
Exterior view of a light-colored building with several white sash windows, one partially open
Bathroom with a green-framed window, patterned wallpaper, toilet, and a curved glass shower enclosure

Direct Line

07507391329

Quick Enquiry

Core Services

  • Sash Window Replacement
  • Sash Window Restoration
  • Sash Window Repair
  • Casement Windows

Our Work

Heritage Doors
Arched Windows
Interior Sash
Checkatrade Verified
pentagon

Here at Golden Ratio Windows we have built up an excellent reputation in our local area by offering the most comprehensive and expert service in Chelsea. From the planning stage to the finished article; we are with you every step of the way, making sure that whatever the task, you are completely satisfied with the end result. You can also rest assured that you will be receiving a professional, yet personal service for each job that we attend.

See our services

With so many years working in the trade, we are happy to answer any queries and provide quotes for any work that you are looking to have done. If you are in need of any work in Chelsea or the surrounding areas, then give us a call on 02034881695, or send us a message through our contact page.

Contact us