Replacement uPVC Windows: What's Involved

Most people start thinking about new windows because of something specific: draughts around the sash, condensation between the panes, frames that are hard to open or lock, rotten timber, or simply a heating bill that keeps creeping up. Sometimes it is looks, when old frames have yellowed or no longer suit the house.

We visit, measure every opening and look at what surrounds it: the condition of the reveals, sills and lintels, whether any window needs to serve as an escape route, and where the trickle vents or opening lights should go. We talk through styles, colours and glass, then provide a written quotation. Nothing is ordered until you are happy with it.

Your windows are uPVC and made to measure from the survey dimensions, with the frame colour, foils, hardware and glass you chose. Energy-saving options include Planibel A low-emissivity glass in the sealed units.

The fitters remove the old frame, prepare the opening, fix the new frame, glaze it, seal it inside and out and make good the edges. We take care to protect floors and furniture, and we clear away the old frames. Each window is checked for smooth opening and locking before we move on.

Because our fitters are FENSA and CERTASS registered, the work is self-certified under Building Regulations. You receive the compliance certificate, which is worth keeping safe: it is often asked for when a house is sold.

You can pay in the usual way or spread the cost with finance through our FCA-authorised arrangement (FCA 1055332). If you are planning a whole-house replacement in stages, our planning guide covers how to sequence the rooms.

Most homeowners can stay in and carry on with their day while windows are replaced, because the fitters work opening by opening and each is closed up before the next begins. We will tell you beforehand which rooms we will be in and when, so curtains, blinds and anything on the sills can be moved in good time. Afterwards you get a short walk-round to show you how the handles, restrictors and trickle vents work.