Double glazing
Two panes with an insulating gap — the UK standard for warmer, quieter rooms and the most popular upgrade by far.
See single vs double
Double · Triple · Secondary
Double, triple or secondary — get the right glazing quote
Compare the three main glazing types, see a typical price range for each, then send one quick form and a vetted local installer sends your firm, no‑obligation quote.
- Free, no-obligation quotes
- Vetted local installers
- Homeowners across the UK
Estimator — see a typical range
£450–£800 per window, supplied & fitted
The UK standard: two panes with an insulating gap — a strong all‑round upgrade for warmth and noise.
£600–£1,100 per window, supplied & fitted
Three panes for the lowest heat loss — best for exposed spots, cold rooms and efficient new builds.
£300–£650 per window, supplied & fitted
A slim inner pane fitted behind your existing window — ideal for period and listed homes where frames must stay.
Typical UK installed prices — an indicative range, not a quote.
Get your free glazing quote
One quick form — matched to a vetted local installer.
Indicative ranges shown are typical figures, not a quote.
Three glazing types, one simple choice
Not sure which is right for your home? Here is the quick version — then get a firm quote for the one that fits.
Triple glazing
Three panes for the lowest heat loss and extra sound insulation — a strong choice for exposed or very cold rooms.
Triple glazing quotes
Secondary glazing
A slim inner pane behind your existing window — keeps period and listed frames while cutting draughts and noise.
Secondary glazing quotesHow the estimate becomes a firm quote
The estimator sets your expectations. A survey turns it into a real price.
1
Pick a glazing type
Use the estimator to see a typical installed range for double, triple or secondary glazing.
2
Send your details
One short form. We match you with a vetted installer covering your postcode.
3
Get your firm quote
A free home survey confirms the exact price for your windows — no obligation to go ahead.
What customers say about our installation partner, Help 2 Buy Windows
Our quotes are fulfilled by Help 2 Buy Windows, rated No.1 for double glazing on Trustpilot.
“They actually explained the glazing options instead of just pushing the priciest one. I understood why triple suited our exposed side of the house before I committed to anything.”Verified installation — Help 2 Buy Windows
“The online estimator set my expectations really well, so there were no surprises when the surveyor came round. Tidy fitters, and the house is noticeably warmer.”Verified installation — Help 2 Buy Windows
“The quote matched what I’d been led to expect, which I really appreciated. Friendly team, no pressure, and they worked around our old sash windows carefully.”Verified installation — Help 2 Buy Windows
Glazing guides & quotes
Everything you need to choose the right glass and get a sensible price.
Types of glazing explained
Your plain-English guide to every glazing option in one place.
Single vs double glazing
Why a second pane changes warmth, noise and condensation.
Triple glazing quotes & cost
When a third pane is worth it and what it typically costs.
Secondary glazing quotes
Keep your existing frames and still cut draughts and noise.
Soundproof secondary glazing
How a wider air gap tackles traffic, railway and street noise.
Glazing for listed buildings
Sympathetic options that respect period and protected homes.
Solar-control & self-cleaning glass
Cut summer glare and heat, and keep the glass clearer for longer.
Obscure & privacy glazing
Bathroom and street-facing options and the privacy levels explained.
Toughened vs laminated glass
Which safety glass goes where, and why it matters.
Getting a glazing quote
What a good quote includes and the questions to ask.
Ready to lock in your glazing price?
Pick your glazing type, send one quick form, and a vetted local installer confirms your firm quote after a free survey.
Estimator figures move with glass prices — get a firm quote to lock yours.Glazing quote FAQs
The quick answers before you send your details.
Is the estimator figure a quote?
No. The estimator shows a typical UK installed range for each glazing type so you know roughly what to expect. Your firm quote depends on the size of your windows, the glass specification, your frames and site access — and it is confirmed after a free home survey.
What’s the difference between double and triple glazing?
Double glazing has two panes with an insulating gap; triple glazing adds a third pane for lower heat loss and a little more sound insulation. Triple often makes most sense on exposed elevations, in very cold rooms or in highly efficient homes. Our single vs double glazing and triple glazing guides go into detail.
Can I keep my period or listed windows?
Often, yes. Secondary glazing fits a slim inner pane behind your existing window, so original frames stay in place — a popular choice for period and listed homes. See glazing for listed buildings.
Is my quote really free?
Yes — the quote and home survey are free and there is no obligation to go ahead. 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.
Who actually provides the quote?
We match your enquiry to a vetted installation partner covering your postcode. Installations are fulfilled by Help 2 Buy Windows, rated 4.9/5 “Excellent” on Trustpilot.