
Fastwarm 6mm XPS Insulation Boards
Fastwarm
£3.99 each£7.29
Delivers nationwide
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Tiling supplies / Underfloor heating
Fastwarm makes electric underfloor heating mats and cables, thermostats, and water underfloor heating kits for under tiles. A line is listed only when the shop shows a was-price above the current price. Fastwarm tile adhesive and leveller are filed with adhesives. If nothing is reduced, this page stays up. Prices checked 16 Oct 2026.
140 discounted lines · page 1 of 6

Fastwarm
£3.99 each£7.29
Delivers nationwide
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Fastwarm
£14.99 each£26.39
Delivers nationwide
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Fastwarm
£4.99 each£8.29
Delivers nationwide
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Fastwarm
£5.99 each£9.89
Delivers nationwide
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Fastwarm
£18.99 each£28.99
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Fastwarm
£911.99 each£1,391.49
Delivers nationwide
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Fastwarm
£10.99 each£15.59
Delivers nationwide
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Fastwarm
£17.99 each£24.99
Delivers nationwide
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Fastwarm
£971.99 each£1,349.49
Delivers nationwide
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Fastwarm
£7.99 each£10.79
Delivers nationwide
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Fastwarm
£8.99 each£10.99
Delivers nationwide
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Fastwarm
£1.79 each£1.99
Delivers nationwide
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Fastwarm
£1.79 each£1.99
Delivers nationwide
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Fastwarm
£2.69 each£2.99
Delivers nationwide
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Fastwarm
£2.69 each£2.99
Delivers nationwide
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Fastwarm
£3.59 each£3.99
Delivers nationwide
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Fastwarm
£4.49 each£4.99
Delivers nationwide
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Fastwarm
£4.49 each£4.99
Delivers nationwide
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Fastwarm
£4.49 each£4.99
Delivers nationwide
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Fastwarm
£4.49 each£4.99
Delivers nationwide
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Fastwarm
£4.94 each£5.49
Delivers nationwide
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Fastwarm
£5.21 each£5.79
Delivers nationwide
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Fastwarm
£5.39 each£5.99
Delivers nationwide
View at FastwarmWhere a shop prints an ex-VAT trade price, that is the figure shown. Inc-VAT amounts on the same card are not used as the discount.