Double-height black steel-look glazing in a London home
Home/Windows

Windows that suit the house, not the catalogue.

uPVC, aluminium or timber. Casement, flush, sash or bay. We'll tell you honestly which one your house wants, then fit it so cleanly there's no making good.

White uPVC windows on a Tudor-style house
EpsomReal JBC install
01 / uPVC

uPVC casement windows

The workhorse of British homes, and for good reason: warm, secure, low maintenance and the most affordable route to A-rated glazing. Available in white, anthracite, woodgrain foils and dual colour.

  • A-rated double or triple glazing
  • Equal sightlines available for a cleaner look
  • Chamfered or sculptured profiles
  • Multi-point locking, internally beaded
Ask about upvc casement windows
Flush casement window with square leaded glass
Worcester ParkReal JBC install
02 / Flush

Flush casement windows

The sash sits flush with the frame instead of standing proud, so the window reads like painted timber from the street. Our most-requested upgrade on 1930s semis and anything with a bit of character.

  • Timber look without the timber upkeep
  • Square or diamond leaded glass designs
  • Woodgrain or smooth painted finishes
  • Matches heritage conservation requirements
Ask about flush casement windows
Finished white sash windows seen from inside
South LondonReal JBC install
03 / Sash

Sliding sash windows

Timber or uPVC vertical sliders for Victorian and Edwardian homes. We've replaced full bays like-for-like with bespoke timber sash, and whole houses with uPVC sash where the budget needed it.

  • Like-for-like bespoke timber replacement
  • uPVC sash with run-through horns and deep bottom rails
  • Spring balance or traditional weights
  • Tilt-in for cleaning
Ask about sliding sash windows
“

Had all my windows replaced including 2 bay windows. Excellent service from Callum and Jack, they were on time, tidy, didn't even need to do any making good internally.

CR5 · verified Checkatrade review
Modern white rendered house with black aluminium windows
Real JBC install
04 / Aluminium

Aluminium windows

Slim frames, big glass, sharp lines. Aluminium is the choice for modern builds and extensions, or for anyone who wants black frames that stay black.

  • Ultra-slim sightlines
  • Powder-coated in any RAL colour
  • Thermally broken for A-rated performance
  • Pairs with aluminium bifolds and sliders
Ask about aluminium windows
Cottage with flush timber heritage windows and roses on the brick
05 / Heritage

Heritage & timber windows

For listed buildings, conservation areas and anyone who simply loves wood. Engineered timber, factory-finished, with the slim profiles planners want to see.

  • Flush timber casements and box sash
  • Factory-painted, long guarantee finishes
  • Slimline double glazing for period profiles
  • Help with conservation approval
Ask about heritage & timber windows
Victorian house with new sash windows
Real JBC install
06 / Bay & roof

Bay windows, roof windows & more

Full bay replacements including structural support, Velux and roof window swaps, loft windows, shutters and frosted glass for bathrooms.

  • Bay windows with new structural posts
  • Velux replacement without scaffolding where possible
  • Interior plantation shutters fitted
  • Obscure and privacy glass options
Ask about bay windows, roof windows & more
Questions

Windows, answered.

The things people ask on the doorstep. Anything else, ring and ask.

Ask a question
How long does a full house take?
A recent South London job replaced four window sets, including a bespoke timber sash bay, plus a front door in three and a half days. Single windows are usually in and out in a morning.
Will I need a plasterer afterwards?
Almost never. Frames are fitted square and sealed, trims are neat, and the reviewers keep saying the same thing: no making good required, only paint as normal.
uPVC or aluminium?
uPVC is warmer per pound and the right call for most homes. Aluminium wins on slim frames and dark colours that last. We'll tell you straight on the survey.
Do you do just one window?
Yes. A lot of our work is single windows, misted units and repairs. See the repairs page.
Can you match my existing windows?
Usually. Profiles, colours, glazing bars and leaded patterns can all be matched so a new window doesn't look new.

Thinking about new windows?

Send us a photo of the house and we'll come back with honest advice on what would suit it, and a price.

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