Sofa Cushion Foam UK — Replacement Foam Cut to Size

Replacement sofa cushion foam cut to size for a UK sofa by Foamera

Replacement sofa cushion foam brings a saggy, flattened settee back to life. We cut high-density foam to your exact seat and back measurements, in any shape, for UK homes — foam only or with a new cover. Enter your dimensions in cm or inches, pick your firmness, and we handcraft it to order and ship it free across the UK.

Free UK delivery 14-day fit guarantee Pay in installments
14-Day Perfect-Fit Guarantee
Not the right fit? We remake your foam — free. Order with total confidence.
Free UK deliveryTracked to your door — no minimum order.
Pay your wayAll major cards, PayPal, Shop Pay & Affirm — split into interest-free installments.
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Free gift over $250Spend $250+ and choose a handmade gift at checkout — on us.
Independently certified — safe & made to last
OEKO-TEX® Standard 100Fabrics tested safe for skin
CertiPUR-US®Certified foam, low-VOC
ISO 9001Quality-managed workshop

The right foam for a UK sofa

Damp UK winters and heated-then-cold rooms are hard on old foam, which is why sofa seats compress and go musty. High-density CertiPUR-US® foam resists that sag and holds its shape for years; for a snug, conservatory or anywhere prone to condensation, our quick-drying foam stops moisture sitting inside the cushion. Need a new cover too? Browse 1,000+ premium fabrics, including water-resistant, UV-stable all-weather options, and order free swatches first.

Sofa cushion foam UK — answered

What foam is best for replacing sagging sofa cushions?

High-density foam (often called HD or firm-grade) gives the best support and lifespan for daily-use seats and resists the compression that makes old cushions sag. You choose the density and thickness when you customize. Unsure? Send a photo on WhatsApp and we size it with you first.

Can I get foam only, without a new cover?

Yes. Choose the foam-only option and we cut new foam to fit inside your existing sofa covers — the most affordable way to revive a tired settee. Add a fresh cover only if you want one.

How thick should sofa seat foam be?

Most sofa seats use 4–6″ (10–15 cm) of high-density foam; backs are usually softer and thinner. Measure your old foam and match it, or send us the details and we'll advise.

How long does it take and do you deliver free?

Foam is cut to order and shipped worldwide with free, tracked UK delivery — you'll see the current lead time at checkout. If the fit isn't right, our 14-day perfect-fit guarantee means we remake it.

Not sure which foam or size? We'll help — free.

Send your old cushion measurements or a photo. Our makers reply with the right density and exact fit — no obligation, no pushy sales.

Get a free size check