{ "name": "Roofing Quotes UK Glazing Price Index", "title": "Glazing Price Index", "url": "https://roofingquotesuk.com/datasets/glazing-price-index/", "csv": "https://roofingquotesuk.com/datasets/glazing-price-index.csv", "markdown": "https://roofingquotesuk.com/datasets/glazing-price-index/index.md", "computed_at": "2026-10-19", "license": "https://roofingquotesuk.com/terms", "headline": "For supply-only, the median published figure in the Glazing Price Index is 174.50 GBP across 4 figures from the sources' own pages (range 135.96 to 202 GBP), read 12 October 2026.", "quotes": [ "For supply-only, the median published figure in the Glazing Price Index is 174.50 GBP across 4 figures from the sources' own pages (range 135.96 to 202 GBP), read 12 October 2026.", "9 of the 35 named sources read in full publish a figure; 26 publish none, read 12 October 2026.", "Glazing Price Index, material composite door: median 1,150 GBP across 2 sources, read 12 October 2026.", "Glazing Price Index, material aluminium casement: median 1,120 GBP across 1 source, read 12 October 2026.", "Glazing Price Index, material timber sash: median 1,500 GBP across 1 source, read 12 October 2026.", "Glazing Price Index, material uPVC casement: median 500 GBP across 1 source, read 12 October 2026.", "Glazing Price Index, supply-only vs fitted supply-only: median 174.50 GBP across 4 sources, read 12 October 2026." ], "citation": "\"Roofing Quotes UK Glazing Price Index\", updated 2026-10-19, https://roofingquotesuk.com/datasets/glazing-price-index/.", "changed_since": null, "national": { "unit": "GBP", "n": 9, "median": 500, "min": 135.96, "max": 1500, "p25": 174.5, "p75": 1160, "mean": 678.5511, "units": { "GBP": 9 }, "published_sources": 9, "named_sources": 37, "read_sources": 35, "not_published": 26, "published_share": 0.257 }, "by_axis": { "material": { "composite door": { "GBP": { "n": 2, "median": 1150, "min": 1100, "max": 1200, "p25": null, "p75": null, "mean": 1150 } }, "aluminium casement": { "GBP": { "n": 1, "median": 1120, "min": 1120, "max": 1120, "p25": 1120, "p75": 1120, "mean": 1120 } }, "timber sash": { "GBP": { "n": 1, "median": 1500, "min": 1500, "max": 1500, "p25": 1500, "p75": 1500, "mean": 1500 } }, "uPVC casement": { "GBP": { "n": 1, "median": 500, "min": 500, "max": 500, "p25": 500, "p75": 500, "mean": 500 } } }, "supply-only vs fitted": { "supply-only": { "GBP": { "n": 4, "median": 174.5, "min": 135.96, "max": 202, "p25": 139.47, "p75": 201.25, "mean": 171.74 } } } }, "rows": [ { "source": "Very Secure Doors composite door prices", "url": "https://www.verysecuredoors.co.uk/blog/composite-door-prices/", "figure": "£1,100 ", "value": 1100, "unit": "GBP", "vat": null, "axis": { "material": "composite door" }, "retrieved_at": "2026-10-12", "quote": "GRP Composite Doors — From £1,100 Fitted", "source_class": "primary-provider-own-site", "text_sha256": "0ba1e053ee1d597794f076b4a93cc776091a046ea594ff88722f946f5531d30b" }, { "source": "GFD Homes composite door prices", "url": "https://www.gfdhomes.co.uk/blog/composite-door-prices-everything-you-need-to-know/", "figure": "£1,200 ", "value": 1200, "unit": "GBP", "vat": null, "axis": { "material": "composite door" }, "retrieved_at": "2026-10-12", "quote": "Prices range from £1,200 to £3,500, depending on door specifications.", "source_class": "primary-provider-own-site", "text_sha256": "7f57146611cfdda70ae44a8dc39414e0a330298f81b758cbf1b70968ecc26dea" }, { "source": "Everest aluminium window prices", "url": "https://www.everest.co.uk/windows/aluminium-windows/aluminium-window-prices/", "figure": "£1,120 ", "value": 1120, "unit": "GBP", "vat": null, "axis": { "material": "aluminium casement" }, "retrieved_at": "2026-10-12", "quote": "The price for aluminium windows in 2026 The cost of an aluminium casement window is between £1,120 to £4,500 per window, depending on the size, specific requirements, number of windows ordered and complexity of installation.", "source_class": "primary-provider-own-site", "text_sha256": "d40d18060a29f04e56deffdab0dce3febace4115a317fad54f6ffa25321a61dd" }, { "source": "Scott James Windows sash window cost", "url": "https://scottjameswindows.co.uk/blog/sash-window-cost/", "figure": "£1,500 ", "value": 1500, "unit": "GBP", "vat": null, "axis": { "material": "timber sash" }, "retrieved_at": "2026-10-12", "quote": "Fully installed softwood replacement windows start at around £1,500 each.", "source_class": "primary-provider-own-site", "text_sha256": "631499328368e5ae29752dc4db348e46103c900fef833f1e300709fbfc005425" }, { "source": "Colin's Sash Windows: replacement window costs", "url": "https://colinssashwindows.co.uk/double-glazing-windows/windows-buying-guides/replacement-windows-cost/", "figure": "£500 ", "value": 500, "unit": "GBP", "vat": null, "axis": { "material": "uPVC casement" }, "retrieved_at": "2026-10-12", "quote": "Installed price £500 – £800", "source_class": "primary-provider-own-site", "text_sha256": "299c01a648e175d27fcf5e26ff7af008817383433621a0203828500033d902c3" }, { "source": "Just Doors UK DIY windows", "url": "https://www.justdoorsuk.com/diy-windows.php", "figure": "£199", "value": 199, "unit": "GBP", "vat": null, "axis": { "supply-only vs fitted": "supply-only" }, "retrieved_at": "2026-10-12", "quote": "From £199", "source_class": "primary-provider-own-site", "text_sha256": "76f4638c134c06146f368264c1b9fb70f6d410fe6fe42b6ca096c89476ad846e" }, { "source": "UK Trade Windows & Doors standard PVCu windows", "url": "https://www.tradewindowsonline.com/categories/standard_pvcu_windows", "figure": "£150", "value": 150, "unit": "GBP", "vat": null, "axis": { "supply-only vs fitted": "supply-only" }, "retrieved_at": "2026-10-12", "quote": "From £150", "source_class": "primary-provider-own-site", "text_sha256": "86f12ee627f7f06672404f036aa31217dafd47fb2396303eed53bbb5eb38d402" }, { "source": "House of Windows uPVC casement windows", "url": "https://www.houseofwindows.co.uk/upvc-windows.php", "figure": "£202", "value": 202, "unit": "GBP", "vat": null, "axis": { "supply-only vs fitted": "supply-only" }, "retrieved_at": "2026-10-12", "quote": "from £202", "source_class": "primary-provider-own-site", "text_sha256": "53c70d41942e715008874090084851be7698eb6e54496c6b3a3bc448d0278972" }, { "source": "Doors Windows Stairs white uPVC windows", "url": "https://www.doorswindowsstairs.co.uk/product-category/upvc-windows/white-upvc-windows/", "figure": "£135.96", "value": 135.96, "unit": "GBP", "vat": null, "axis": { "supply-only vs fitted": "supply-only" }, "retrieved_at": "2026-10-12", "quote": "From £135.96", "source_class": "primary-provider-own-site", "text_sha256": "43e2c0c0d782b984186f30c8a78de84389ed463bb94f2ab56ea77f689168e6c1" } ], "not_published": [ { "source": "Just Value Doors uPVC windows", "url": "https://www.justvaluedoors.co.uk/upvc-window", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "House of Windows supply-only shop", "url": "https://www.houseofwindows.co.uk/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Quickslide uPVC casement windows", "url": "https://www.quickslide.co.uk/windows/casement-windows/pvcu-casement-windows/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Window Price Online", "url": "https://windowpriceonline.co.uk/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "EasyFit Window", "url": "https://easyfitwindow.com/", "retrieved_at": "2026-09-12", "reason": "read in full and no accepted figure on the page" }, { "source": "Double Glazing Units cost guide", "url": "https://www.doubleglazingunits.co.uk/cost-guide", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Gloucester Windows and Doors replacement double glazed glass", "url": "https://www.gloucesterwindowsanddoors.co.uk/replacement-double-glazed-glass/", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Aaran Glass average price of a replacement double-glazed unit", "url": "https://www.aaranglass.co.uk/blog-average-price-replacement-double-glazed-unit-uk/", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Emerald Doors bifold door prices", "url": "https://www.emeralddoors.co.uk/blogs/news/bifold-doors-cost", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Door Supplies Online composite door prices", "url": "https://www.doorsuppliesonline.co.uk/blogs/news/composite-door-prices-in-the-uk-a-comprehensive-guide", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Horizon Windows and Doors bifold cost", "url": "https://horizonwindowsanddoors.co.uk/news-insights/how-much-do-bifold-doors-cost-uk/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "The Great Big Window Company cost of installing bifold doors", "url": "https://www.thegreatbigwindowcompany.co.uk/cost-of-installing-bifold-doors", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "MyJobQuote bifold door costs", "url": "https://www.myjobquote.co.uk/costs/bifold-doors", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "MyBuilder double glazing cost guide", "url": "https://www.mybuilder.com/windows-door-fitting/price-guides/double-glazing-cost", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Just Value Doors aluminium windows", "url": "https://www.justvaluedoors.co.uk/aluminium-window", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Everest types of windows", "url": "https://www.everest.co.uk/windows/types-of-windows/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Safestyle windows", "url": "https://www.safestyle-windows.co.uk/windows/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Colin's Sash Windows: sash window costs", "url": "https://colinssashwindows.co.uk/blog/sash-windows-cost/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Ideal Glass: cost to change window glass", "url": "https://idealglass.uk.com/articles/how-much-does-it-cost-to-change-window-glass", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Restoration Glazing double glazing repair cost", "url": "https://www.restorationglazing.com/blog/double-glazing-repair-cost/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Unique Glazing: how much do aluminium windows cost", "url": "https://www.uniqueglazing.co.uk/news/how-much-do-aluminium-windows-cost", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "Pro Calculator uPVC windows price calculator", "url": "https://procalculator.co.uk/upvc-windows-price-calculator/", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Tailored Quote new windows cost", "url": "https://tailoredquote.co.uk/guides/new-windows-cost-uk.html", "retrieved_at": "2026-09-12", "reason": "every candidate on the page was refused" }, { "source": "Klar Windows double glazed window styles", "url": "https://klarwindows.co.uk/blog/double-glazed-window-styles", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" }, { "source": "REHAU types of double glazing", "url": "https://window.rehau.com/uk-en/different-types-of-double-glazing", "retrieved_at": "2026-10-12", "reason": "read in full and no accepted figure on the page" }, { "source": "ExpertSure sash window costs", "url": "https://www.expertsure.com/uk/double-glazing/sash-windows-cost/", "retrieved_at": "2026-10-12", "reason": "every candidate on the page was refused" } ], "sources": [ { "url": "https://www.justvaluedoors.co.uk/upvc-window", "label": "Just Value Doors uPVC windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.justdoorsuk.com/diy-windows.php", "label": "Just Doors UK DIY windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.tradewindowsonline.com/categories/standard_pvcu_windows", "label": "UK Trade Windows & Doors standard PVCu windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.houseofwindows.co.uk/upvc-windows.php", "label": "House of Windows uPVC casement windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.houseofwindows.co.uk/", "label": "House of Windows supply-only shop", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.quickslide.co.uk/windows/casement-windows/pvcu-casement-windows/", "label": "Quickslide uPVC casement windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.doorswindowsstairs.co.uk/product-category/upvc-windows/white-upvc-windows/", "label": "Doors Windows Stairs white uPVC windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://windowpriceonline.co.uk/", "label": "Window Price Online", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://easyfitwindow.com/", "label": "EasyFit Window", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.doubleglazingunits.co.uk/cost-guide", "label": "Double Glazing Units cost guide", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gloucesterwindowsanddoors.co.uk/replacement-double-glazed-glass/", "label": "Gloucester Windows and Doors replacement double glazed glass", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.aaranglass.co.uk/blog-average-price-replacement-double-glazed-unit-uk/", "label": "Aaran Glass average price of a replacement double-glazed unit", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.emeralddoors.co.uk/blogs/news/bifold-doors-cost", "label": "Emerald Doors bifold door prices", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.verysecuredoors.co.uk/blog/composite-door-prices/", "label": "Very Secure Doors composite door prices", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.gfdhomes.co.uk/blog/composite-door-prices-everything-you-need-to-know/", "label": "GFD Homes composite door prices", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.doorsuppliesonline.co.uk/blogs/news/composite-door-prices-in-the-uk-a-comprehensive-guide", "label": "Door Supplies Online composite door prices", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://horizonwindowsanddoors.co.uk/news-insights/how-much-do-bifold-doors-cost-uk/", "label": "Horizon Windows and Doors bifold cost", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.thegreatbigwindowcompany.co.uk/cost-of-installing-bifold-doors", "label": "The Great Big Window Company cost of installing bifold doors", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.myjobquote.co.uk/costs/bifold-doors", "label": "MyJobQuote bifold door costs", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.checkatrade.com/blog/cost-guides/double-glazing-cost/", "label": "Checkatrade double glazing cost guide", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.mybuilder.com/windows-door-fitting/price-guides/double-glazing-cost", "label": "MyBuilder double glazing cost guide", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.justvaluedoors.co.uk/aluminium-window", "label": "Just Value Doors aluminium windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.everest.co.uk/windows/aluminium-windows/aluminium-window-prices/", "label": "Everest aluminium window prices", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.everest.co.uk/windows/types-of-windows/", "label": "Everest types of windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.safestyle-windows.co.uk/windows/", "label": "Safestyle windows", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://colinssashwindows.co.uk/blog/sash-windows-cost/", "label": "Colin's Sash Windows: sash window costs", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://colinssashwindows.co.uk/double-glazing-windows/windows-buying-guides/replacement-windows-cost/", "label": "Colin's Sash Windows: replacement window costs", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://scottjameswindows.co.uk/blog/sash-window-cost/", "label": "Scott James Windows sash window cost", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://idealglass.uk.com/articles/how-much-does-it-cost-to-change-window-glass", "label": "Ideal Glass: cost to change window glass", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.restorationglazing.com/blog/double-glazing-repair-cost/", "label": "Restoration Glazing double glazing repair cost", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.uniqueglazing.co.uk/news/how-much-do-aluminium-windows-cost", "label": "Unique Glazing: how much do aluminium windows cost", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://procalculator.co.uk/upvc-windows-price-calculator/", "label": "Pro Calculator uPVC windows price calculator", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://tailoredquote.co.uk/guides/new-windows-cost-uk.html", "label": "Tailored Quote new windows cost", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://klarwindows.co.uk/blog/double-glazed-window-styles", "label": "Klar Windows double glazed window styles", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://window.rehau.com/uk-en/different-types-of-double-glazing", "label": "REHAU types of double glazing", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.expertsure.com/uk/double-glazing/sash-windows-cost/", "label": "ExpertSure sash window costs", "license": "the publisher's own terms; quoted for reporting and comment" }, { "url": "https://www.fensa.org.uk/homeowners", "label": "fensa.org.uk", "license": "the publisher's own terms; quoted for reporting and comment" } ], "methodology": "Every row is a verbatim sentence read from the named source's own page through our fetch service on the date shown, hash-pinned to the stored read (the sha of the page's visible text; the raw page is mirrored to R2). 9 of the 35 named sources that could be read published a usable figure; 26 published none and are recorded as not published, never filled in; 2 could not be read (blocked, dead or unreachable) and count nowhere. The headline figures (median, minimum, maximum, quartiles) are over ONE figure per source in GBP (a source's median where its page yielded several accepted sentences), so N counts sources, never sentences; 346 candidate sentence(s) were refused by a reviewer with the reason recorded. The fuller derivation this dataset is chartered to grow into (not yet what the figures above are; they are each source's own published figure as read): the median, minimum and maximum PUBLISHED price per window and per door across every supplier and installer that publishes one, split by material (uPVC, aluminium, timber, composite), style (casement, sash, bow, bifold, French), size band and basis (supply-only, supplied and fitted); the FITTED PREMIUM computed as the difference between the two populations, and the share of the trade that publishes any price at all - a number no single supplier can publish because each publishes only its own basis", "embed": "

174.50 GBP

median for supply-only, Glazing Price Index, across 4 figures, read 12 October 2026

Source: Roofing Quotes UK Glazing Price Index
" }