For UK window and door fitters

Window fitter quote template (UK)

A clear layout for a window and door quote that sets out the glazing spec, registration, per unit pricing and VAT properly, so the customer knows exactly what is going in before you take a single old frame out.

Last updated 15 July 2026 · 6 min read

What a window fitter quote should include

Window and door quotes go wrong on the detail the customer cannot picture: the exact glazing, the U-values, what happens to the old units, and who makes the reveals good afterwards. A strong quote prices each opening clearly, names the spec, and sets out the work either side of the fit, so nobody is guessing when the van turns up.

Your business and registration. Trading name, address, contact, your FENSA or CERTASS registration number, and your VAT number if registered. Registration matters to the customer because it covers the building control notification, so put it on the quote.
The customer and the site. Their name and the property address.
Per window and per door pricing. Each opening on its own line, with frame material (uPVC, aluminium or timber), style, and size or reference.
The glazing spec. Double or triple glazed, the U-value, and toughened or laminated glass where it is needed, such as near doors, low level and in bathrooms.
Survey and measure. A proper survey before manufacture so units are made to fit the actual openings.
Removal and disposal. Taking out the old windows and doors and removing them from site.
Making good and finishing. Internal and external making good, plus trims and cills.
VAT. If registered, subtotal, 20% VAT and total. If not, say so.
Timeline and validity. Lead time for manufacture, days on site, and "Valid for 30 days" so a spec price does not follow you around after supplier costs move.

A window fitter quote example

The figures below are illustrative and shown only to demonstrate the layout. They are not market rates. Price every job from your own supplier prices and day rate.

Section	Detail	Amount (example only)
Survey and measure	Site survey of all openings before manufacture	£X
Supply windows and doors	uPVC windows plus composite front and bi-fold, double glazed to agreed U-value, toughened where needed	£X
Remove old units and dispose	Take out existing windows and doors and remove from site	£X
Fit and make good	Install units, seal and make good internally and externally	£X
Trims and finishing	Trims and cills fitted and finished	£X
Subtotal		£X
VAT (20%, if registered)		£X
Total		£X

Scope note: "Survey, supply and fit new uPVC windows and composite and bi-fold doors, double glazed to the agreed U-value with toughened glass where required, remove and dispose of old units, make good internally and externally, fit trims and cills. FENSA registered, building control notified on completion." Terms note: "Price assumes existing reveals, lintels and sills are sound. Any hidden defect found when the old units come out will be quoted and agreed in writing before proceeding. Valid for 30 days."

The mistakes that cost window fitters money on a quote

Not stating the glazing spec. Leaving off the U-value, or double versus triple, invites a price argument later and lets a cheaper quote look the same on paper. Name the spec on every line.
Vague making good. "Fit windows" makes the customer assume plastering and rendering that you never priced. Spell out what internal and external making good is in and what is out.
Ignoring access. Upper floor openings may need a tower or scaffold. If access is not priced, it becomes a loss on the day. Say how upper floors are reached and who provides it.
Being unclear on who notifies. If you are FENSA or CERTASS registered you self certify and the scheme handles building control. Say so, or the customer may think they must arrange it. Where you are not registered, make clear building control must be notified separately.
No lead time. Made to measure units take time to manufacture. Put the lead time on the quote so the start date is not misunderstood.

Should a window fitter send a quote or an estimate?

For a measured supply and fit to an agreed spec, a set of uPVC windows and a composite door to fixed sizes, quote it firmly. Where the reveals, lintels or timber behind old frames cannot be seen until the units come out, an estimate with a firm quote to follow once surveyed is the honest approach. Put the spec and a variations line in writing either way. Our guide to quote vs estimate for UK trades explains when each is fairer.

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This page is practical quoting guidance, not legal advice. Replacement windows and doors are notifiable building work in the UK, handled through a competent person scheme such as FENSA or CERTASS or through building control. For a serious dispute or a large sum, take proper advice.

Window fitter quote FAQ

What should a window fitter quote include?

Your business and FENSA or CERTASS registration, the customer and site, a per window and per door breakdown, the glazing spec with U-values, survey and measure, removal and disposal of old units, making good, trims and cills, VAT, a timeline and a validity period.

How do I quote a full house of windows and doors?

Price each opening on its own line with the frame material, style and glazing spec, then add survey and measure, removal and disposal of the old units, making good inside and out, trims and cills, and a variations line for anything found once an old frame is out.

Should a window fitter quote or estimate a job?

For a measured supply and fit to an agreed spec, quote it firmly. Where the reveals or lintels cannot be seen until the old frames come out, an estimate with a firm quote to follow once surveyed is often fairer.

Who notifies FENSA or building control on a window job?

Replacement windows and doors are notifiable building work. If you are FENSA or CERTASS registered you self certify and the scheme notifies building control, so state that on the quote. If not, the work must be notified to building control separately.