double glazing specialists in Slough
Homeowners in Slough use Pro-Fit Window Systems to collect free double glazing quotes from trusted local installers. Every company in our Berkshire network is FENSA-registered and independently rated.
We connect you with up to 3 FENSA-registered double glazing installers near Slough who will each provide a free, no-obligation quote. In South East England, comparing multiple quotes saves homeowners an average of £448–£1,344.
Double Glazing prices in Slough 2026
Here's a guide to what you can expect to pay for double glazing in Slough. All prices are installed costs — use our free tool to get your exact local quote.
| Window Type | From (installed) | Up to (installed) |
|---|---|---|
| Casement (single) | £392 | £784 |
| Casement (large) | £560 | £1,008 |
| Sash Window | £672 | £1,232 |
| Bay Window (3-panel) | £1,344 | £3,584 |
| Tilt & Turn | £448 | £840 |
* Prices are estimates for Slough based on current market data. Your exact quote will depend on window size, specification and chosen installer.
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Get Quotes in Slough →FAQs — Double Glazing in Slough
What is the price of double glazing in Slough?
In Slough, you can expect to pay from £392 for a standard casement window installed, up to £3,584 for a full bay window. Prices in Berkshire are slightly above the national average. The best way to get an accurate price is to compare quotes from local FENSA-registered installers using our free tool.
What's the typical installation time for double glazing in Slough?
For most Slough properties, window installation takes between one and three days. Replacing a single window can be completed in half a day. Your Berkshire installer will carry out a free survey before the job and give you a precise timeline.
Are the window fitters in Slough properly certified?
Yes — we only work with FENSA-registered installers in Slough and across Berkshire. FENSA certification confirms compliance with UK Building Regulations, and every installation is backed by a 10-year insurance guarantee as a result.
Can I replace my windows in Slough without planning consent?
Most standard window replacements in Slough are covered by permitted development rights and require no planning application. If your property is listed or sits within a conservation area in Berkshire, additional consent from the local council may be needed — your installer can guide you through this.