Glazing London replaces and installs bay windows and bow windows across London: structural corner posts and load spreaders done properly, then made-to-measure uPVC, aluminium or timber frames with A-rated glass and FENSA certification. Free survey and quote, 24/7 on 07399 253464.
Both project beyond the wall line and flood a room with light from three directions. The difference is geometry, and it decides how the structure is supported, how the frames are made, and how the finished window reads from the street.
Angular, usually three facets on a splayed or square plan, meeting at proper corner posts. The signature of Victorian and Edwardian London fronts.
Four to six equal facets set at shallow angles, so the window reads as a curve. Softer, wider, and shallower in projection than a bay.
Here is what most quotes skip: on a typical London terrace the old bay frame is quietly holding up the bay roof, and sometimes brickwork above it. Pull the frames without supporting that load and you get cracked render, dropped arches, or worse. Our method is unglamorous and correct:
We check what the existing frames are carrying: bay roof, soldier arch, upper masonry, and measure every facet angle individually.
Adjustable supports take the weight while the old frames come out, so nothing above moves by a millimetre.
Reinforced bay posts and jacks are fitted at the facet junctions, sized to the load, then the new frames are fixed between them.
Facets are coupled at the exact survey angles, sealed, trimmed inside and out, and the installation is registered with FENSA.
Frames can be uPVC, aluminium or timber. Most bay window replacement in London is uPVC with woodgrain or dual-colour foils, but heritage streets often call for vertical sliding sash bays, and modern fronts suit slim casement facets. One team fits all three.
Replacement day is the cheapest moment you will ever have to gain a reading seat. With the frames out we can insulate the sill void, fit a moisture-resistant seat board cut to the bay's exact angles, and set frame heights so the finished seat lands at a comfortable sitting height. Your carpenter adds the cushion and the cat adds itself.
Every bay we glaze uses A-rated double glazing as standard (around 1.2 W/m²K in uPVC), with acoustic laminated glass worth considering on main-road bays. And because bays catch stray footballs too: our 24/7 emergency glazing team reglazes bay windows day and night.
