The checklist
What a window quote should include
Frames, glass spec, guarantees, VAT, waste removal and the survey terms — the lines a complete quote spells out, and the ones a thin quote leaves off.
Read the chapterThe definitive guide
The window quote, from cover to cover
double glazing quote is a document worth reading closely. This is the homeowner’s guide to what belongs in one, the jargon that hides the detail, and the questions that tell a fair price from a padded one — so the quote you sign is the quote you understood.
The complete guide
The Complete Window Quote Guide
Nine chapters that take you from a blank enquiry to a signed contract you understand. Start at the beginning, or jump to the part you’re stuck on.
Ready to gather numbers? You can compare quotes from different firms or go direct for a faster quote — then use this guide to read whatever lands in your inbox.
From the guide
Field notes for anyone getting quotes
The chapters readers reach for most — the difference between a fair number and a padded one usually hides in one of these.
The glossary
Understanding double glazing jargon
U-values, A-ratings, argon fill, spacer bars and trickle vents, translated into plain English so the spec stops being a wall of initials.
Read the chapterThe comparison
Comparing like-for-like quotes
How to line three quotes up on the same specification, so the cheapest headline number isn’t simply hiding a thinner one.
Read the chapterThe small print
Hidden costs in window quotes
Scaffolding, making good, disposal, FENSA registration and finance charges — where extras tend to sit, and how to surface them early.
Read the chapterThe method
Online vs in-home quotes
An instant online estimate versus a measured survey: what each is really telling you, and when a number is firm enough to trust.
Read the chapterThe timing
Best time of year for quotes
How installer diaries, weather and seasonal demand move quotes through the year — and why the quietest months can be the shrewdest.
Read the chapterOn the record
What customers say about our installation partner, Help 2 Buy Windows
4.9 / 5 on Trustpilot 12,000+ reviews — the UK’s No.1 double glazing installer. Read the reviews →
I read up before the surveyor came, so I knew exactly what to ask for. The quote from Help 2 Buy Windows came back clear and itemised — no surprises, and the fitters left the place spotless.
Comparing quotes side by side, I spotted a charge one firm had buried in the small print. Help 2 Buy Windows talked me through every line of theirs. The new windows have made the front room so much quieter.
I finally understood what ‘like for like’ actually meant, so I could compare with confidence. Help 2 Buy Windows matched the spec I asked for and fitted them in a day. The house feels warmer already.
Read up, then get your quote
Quotes are seasonal — the best diaries fill first. Do your homework here, then request a like-for-like quote while installers still have survey dates this side of the season.
Get my window quote →Before you ask
Window quote questions, answered
Is a window quote really free?
Yes — requesting quotes through The Window Quote is free and there’s no obligation to go ahead. Here, “free” only ever means the quote and the home assessment; the windows themselves are priced within the quote.
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.
Do I have to own my home?
The installers we work with quote for homeowners. If you rent, you can still request quotes, but an installer will need the homeowner’s go-ahead before any work is agreed.
How many quotes should I get?
Most people compare two or three like-for-like quotes. Our guide explains how to make sure you’re comparing the same specification, so the cheapest number isn’t quietly hiding a thinner one.
How long is a window quote valid?
It varies by installer — many hold their price for somewhere around 30 to 90 days. We cover what affects validity, and how to get it confirmed in writing, in how long a window quote lasts.
Get a window quote worth comparing
Two quick questions, then we’ll line up quotes from vetted local installers — and you’ll know exactly how to read them.
Get my window quote →