The honest answer is "it depends" — so here's exactly what it depends on, what a good quote includes, and how to compare prices fairly.
Anyone who quotes a firm price for windows or doors without seeing your home is guessing. The cost of a real glazing project depends on how many openings you're replacing, the frames and glass you choose, and the condition of the existing openings. Two homes the same size can be hundreds of pounds apart.
Rather than give you a number that turns out to be wrong, here's what actually drives the price — so when you do get a quote, you'll understand every line of it.
Most window and door projects are priced by the number of openings being replaced. A single window or door costs far less than a full-house replacement, and the rate per opening often eases on larger jobs where set-up and travel are spread further.
uPVC is the most cost-effective and popular choice. Aluminium sits above it, offering slim sightlines and strength for bifolds and large glazed areas. Timber is usually the most expensive, chosen for period and conservation homes where character matters.
A standard casement is simpler — and cheaper — than a bay or bow window, a sash window, or a tilt-and-turn. Composite front doors, bifold doors, and feature glazing each carry their own price because of the materials and the skill involved.
A-rated double glazing is the standard. Triple glazing, acoustic glass for noise, toughened or laminated safety glass, and decorative or obscure finishes all cost more — but each earns its place in the right setting. We'll advise on what's genuinely worth it for your home.
If the existing frames, lintels, or reveals are sound, fitting is straightforward. Rotten timber, failed lintels, or openings that need making good add labour. A proper survey flags this up front rather than as a surprise mid-job.
Stripping out old windows and doors and disposing of the waste responsibly is labour a brand-new opening doesn't need. It's a normal part of a replacement job, and a good quote lists it clearly.
Replacement windows and doors must meet building regulations for energy efficiency and safety. A FENSA-registered installer self-certifies this, so you get the certificate without a separate inspection — but it's part of what you're paying for, and it matters when you sell.
Ground-floor work is usually straightforward. Upper-floor windows, awkward access, or anything needing scaffolding takes longer and adds to the cost. Most homes are simple; we'll flag anything unusual when we survey.
Tell us about your project and we'll survey your home and give you a clear, no-obligation quote — every line explained.
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