Use our free Bottom Line Price Checker to find out what windows, doors and conservatories should actually cost in Windsor — then if you want, we'll negotiate the real price for you.
Step 1: Add your items · Step 2: See your result · Step 3 (optional): We negotiate it down
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We'll tell you instantly if you're being overcharged — and by how much.
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We'll be in touch very soon — usually the same day. We'll tell you exactly what you should be paying and handle the negotiation for you.
Windsor and the surrounding Royal Borough attract a lot of attention from the big national double glazing companies. Names like Anglian Windows, Everest, Safestyle UK, Zenith Windows and Hazlemere Windows are all active in this area — and while they all sell good products, the way they price them can work heavily against you.
Here is the simple truth: their salespeople work on commission. The less discount they give you, the more money they personally earn. That means the first price they quote you is not the real price — it is the price that earns them the most commission. The real price, the one they will accept if you know how to ask, is almost always significantly lower. We have countless examples in our testimonials of customers saving thousands of pounds once they knew what to ask for — and that is exactly why we built the Bottom Line Price Checker. Use it free above and see for yourself.
The areas most actively targeted include the larger family homes of Dedworth, the established residential streets of Clewer Village and Clewer Green, the semi-detached and detached properties of Spital and Old Windsor, and the more prestigious homes around Park Street, Claremont Road and St Leonard's Hill. If you have received a quote in any of these areas, there is a strong chance you are being shown a price that has significant room to move.
The table below shows fair market prices for common double glazing products in the Windsor area, compared to typical opening quotes from national companies. These figures are based on current installer pricing data and the ReQuotes pricing database.
| Product | Fair Market Price | Typical National Quote | Typical Overcharge |
|---|---|---|---|
| uPVC casement window | £450 – £700 | £900 – £1,600 | 50–80% |
| Composite front door | £1,200 – £1,500 | £2,200 – £3,500 | 40–70% |
| French doors (uPVC) | £1,700 – £2,000 | £3,200 – £4,500 | 50–80% |
| Bi-fold doors (3 panel) | £2,600 – £3,200 | £5,000 – £8,000 | 50–90% |
| Full house (3-bed, 8 windows + door) | £5,500 – £8,500 | £12,000 – £18,000 | 40–80% |
| Medium conservatory | £14,000 – £16,000 | £24,000 – £35,000 | 50–80% |
National double glazing companies use a tiered pricing system — sometimes called a sliding scale of discounts internally. The first price a salesperson gives you is never the lowest price they can offer. They are trained to start high and work down only if the customer pushes back, creates urgency, or threatens to leave.
In affluent areas like Windsor, Ascot and Maidenhead, salespeople are often instructed to start even higher than in other parts of the country — the assumption being that homeowners in these areas are less likely to question a premium price. ReQuotes exists to change that.
"Anglian quoted us £14,200 for 10 windows and a front door. ReQuotes told us the fair price was around £8,000. We went back to Anglian and they came down to £8,400. Absolutely staggering difference."
"I had no idea the first price was just the starting point. ReQuotes explained the whole system and helped me negotiate. The salesman dropped £3,200 in one phone call."
"Everest quoted £22,000 for a conservatory. ReQuotes said the fair price was £15,000–£16,000. We got it done for £15,500. This service should be mandatory before anyone signs anything."