Full-house window replacement

When most of your windows are the same age and starting to fail together, doing the whole house in one project usually beats replacing them piecemeal. You share a single survey, one mobilisation of the fitting team and, where needed, one set of access equipment — and you get a consistent look and energy performance across the property in one go. It is disruptive for a few days, but it is over quickly and the result is a warmer, quieter, tidier home throughout.

Order of works

A well-run whole-house replacement follows a logical sequence. The surveyor measures every opening and agrees the specification and colours. Windows are then made to size — typically a few weeks’ lead time. On fitting, most teams work room by room or elevation by elevation, removing an old window, fitting and sealing the new one, and making good before moving on, so the house is never wide open. Upper floors may need scaffolding or an access tower. Doors and any bay windows are usually scheduled around the standard openings.

Because the windows across a house are rarely all the same style, a full-house quote often blends types. Our quotes by window type hub explains how casements, sashes and bays each price up, and the bay window replacement guide covers the more involved sets.

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Timings and living around the work

For an average three-bedroom home, fitting is often completed within a few days once the windows have been manufactured. Rooms are worked on one at a time, dust sheets protect floors and furniture, and the team clears up each day. Plan for a little upheaval near the windows and keep pets and small children away from the work area. Good installers will talk you through the schedule at the assessment so there are no surprises.

How a whole-home job is quoted

The quote reflects the number and type of windows, the glass specification, any doors or bays, access requirements and making good. Energy performance is worth weighing up too: according to the Energy Saving Trust, replacing older glazing with modern A-rated units typically reduces heat loss through windows, though the exact benefit depends on your home. Prices vary widely by region, size and specification, so treat any single figure as a starting point. You can get a fast quote direct, no showroom, or browse the current double glazing deals and prices for context.

Before you commit

Have the replacement window quote checklist to hand so every installer prices the same scope, and read how replacement windows are measured to understand what the survey involves. If a few windows are sound enough to keep for now, this guide on repair or replace — how to decide helps you scope the job, and to keep the elevation consistent compare window styles to replace like-for-like. Funding and contribution options may be available subject to eligibility and a home survey, and £0-upfront options may be available for those who qualify. The quote and home assessment are free and no-obligation.