The Sketch

Market intelligence for installers
The Latest Timber Window & Door Trends

The Latest Timber Window & Door Trends

01.03.2026

Timber’s market share varies significantly by region, with clear hotspots in London and the East of England. We also examine finish preferences and provide a breakdown of the timber product mix to show what’s really being quoted on the ground.

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PVCu Market Share By Region

PVCu Market Share By Region

25.02.2026

We analysed the last 1 million quotes on Tommy Trinder by material. PVCu leads nationally, but regional splits reveal a very different story.

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2025 Colour Trends in PVCu Windows & Doors

2025 Colour Trends in PVCu Windows & Doors

21.01.2026

This post looks at the finish of half a million PVCu items that were quoted on Tommy throughout 2025 by around 700 installers, and includes data showing the top ten finishes by market share.

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Deep Dive into PVCu Vertical Sliders

Deep Dive into PVCu Vertical Sliders

02.12.2025

In this post, PVCu sashes are analysed using the last 30,000 vertical slider quotes from Tommy Trinder. You'll find average selling prices (installed) across the regions, plus data on premium features such as run thru' horns, deep bottom rails and mechanical joints.

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Average Installed Selling Price for Composite Doors

Average Installed Selling Price for Composite Doors

01.12.2025

This post takes a look at what comp doors are selling at, based on the average of the last 10,000 doors quoted by around 700 installers on Tommy Trinder. We've included a regional breakdown since there are big variances in selling prices across the country (+/- 30%).

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