How much does wall filler cost: UK shelf prices

You want a number before you buy a tub for a few cracks. How much does wall filler cost depends which basket you mean. On 15 October 2026 the eight ready-mixed fillers we kept on amazon.co.uk were listed from £1.25 to £21.00. Those are shelf prices from the listings, VAT as Amazon showed it, not a promise of today's price and not a decorator's invoice.

Products Compared lined the eight cards up for the surface filler comparison. We did not run a lab test, and the lowest price is not a test win. Links to amazon.co.uk use the tag pcuk26-21. A qualifying purchase can earn a commission at no extra cost to you. A bigger pack saves money only when you will use the paste and the lid stays on.

In short

On 15 October 2026 these amazon.co.uk wall fillers cost £1.25 to £21. Under £5 covers a small fine tub, a two-pack, and a 330 g multi-purpose tube. About £7 to £14 covers a 1 kg tub, a lightweight putty, and a small kit with tools. A 5 kg pail at £16.33 wastes money if you only have a few holes or the lid arrives open.

What a tub cost on 15 October 2026

The prices below are the shelf prices printed in the raw amazon.co.uk files on 15 October 2026. They are not a live re-check. A small fine filler in this scrape is about £1 to £4, and a kilogram of multi-purpose paste is about £7. That is a rule of thumb for these eight cards, not a national survey.

• Palace fine surface filler, 600 g, at £1.25
• Pack of two 600 g tubs at £2.50
• Polycell multi-purpose, 330 g, at £3.49
• Palace ready mixed, 1 kg, at £6.99
• FOME FLEX Finish at £9.99
• Decex kit at £13.90
• Sinto, 5 kg, at £16.33
• Zawan 1.4 kg kit at £21.00

Trade-counter snippets, used only as aisle context, showed fine-surface tubs around £8 to £13, including £8.00 including VAT at Signet for Polycell Fine Surface 500 g. That tub is not one of the eight. Do not average it into the amazon.co.uk band and call the result a UK typical price.

Stars are not quality ranks. Polycell's 330 g tube showed 4.6 from 14,595 reviews. Decex showed 4.6 from 15, which is not that file. Zawan had no review line. FOME FLEX showed 4.7 from six reviews marked as reviewed in Germany. Who each listing is for is on the best-of page, still without a lab winner.

Under £5 for a small fine repair

Palace's 600 g fine tub at £1.25 is the lowest shelf price in this set. The card is interior fine surface filler for cracks, shallow gaps, and fine repairs, with deeper work in layers of no more than 3 mm. It showed 4.6 from 2,247 reviews. That combination suits a few picture holes and hairline nicks in sound interior plaster. It does not suit a deep hole, an exposed outside wall, or a badly marked room. The £1.25 is the price of the paste, not a finding that this tub won a test.

The two-pack at £2.50 is two 600 g units. You pay twice the single-tub sticker for twice the paste. A few picture holes do not need 1.2 kg, and you still have two lids to keep on.

Polycell's 330 g multi-purpose tube at £3.49 is the other entry price, with the largest review file in the set. The manufacturer page describes that ready-mixed product at about 10 mm, indoors or outdoors, on plaster, masonry, concrete, and brickwork. The Amazon card itself states full cure at 2 hours and does not, on the card, state interior or exterior. A 330 g tube will not cover a badly marked wall. For a whole room of cracks, look at the kilogram. If the hole is a void you can see through, neither £1.25 nor £3.49 replaces a patch.

About £7 to £14 for a kilogram or a small kit

Palace's 1 kg ready-mixed tub at £6.99 is the kilogram in this set. The card and the 28 October 2024 data sheet describe layers no thicker than 10 mm, with full cure up to 24 hours at 20°C. It is interior, and it is not for exposed exterior locations or continuous water immersion, even where a feature line says waterproof. The rating was 4.5 from 4,537 reviews. A room of cracks is the job this weight is for. Three picture hooks are not.

FOME FLEX at £9.99 is a lightweight putty. The card says sandable after 30 minutes and does not state a depth. The 4.7 comes from six reviews marked as reviewed in Germany, which is not a British track record. It suits a plasterboard joint. It is a poor swap for the £1.25 fine tub if you only have a hairline on plaster.

The Decex kit at £13.90 is a 396 g Polycell tube plus a 3 inch scraper and a 120-grit block. The card says indoors and outdoors, up to 10 mm, surface-dry in 1–2 hours and recoatable in 2 hours. It showed 4.6 from 15 reviews. You are paying for the tools in the box, not for a better paste than the £3.49 tube with 14,595 reviews. If you already own a scraper and some abrasive, those extra pounds buy objects you will not use.

The £16 and £21 packs, and when they waste money

Sinto's 5 kg pail at £16.33 is the most paste in the set. The card says repairs up to 1 cm, full cure 12 hours, and over 97% natural ingredients. It showed 4.4 from 768 reviews. It does not state interior or exterior. Per kilogram, £16.33 for 5 kg is about £3.27, against £6.99 for Palace's 1 kg. That sum only lands in your favour if you use the pail while it is still paste. Ready-mixed filler hardens as water leaves it. A lid that arrives open, or a lid you leave off, turns the cheaper-per-kilo sum into a lump.

The Zawan kit at £21.00 is 1.4 kg with tools: the listing names a wall filler, gloves, three filling tools, and 12 pieces of sandpaper. There is no review line, so there is no star rating to report. The listing says indoor and outdoor and waterproof, with no stated depth. At £21 you are above the 5 kg pail while holding less paste, because the bundle is tools plus filler.

A 5 kg pail is the wrong saving for occasional holes. A 330 g tube is the wrong saving for a badly marked wall. The buying guide puts pack after depth and surface for that reason. Consumer Rights Act 2015, section 9, matters when a tub arrives split or already hard. Satisfactory quality is the legal hook. It does not make a hard pail a bargain.

A decorator is a different bill

None of these shelf prices includes labour. We did not open decorator fee guides, so this article will not quote a call-out or a day rate. If you need a person in the house, ask for a figure that names the rooms.

The tub is the whole spend when the damage is a shallow, stable, dry interior nick and you will do the filling. It is a small line on a larger bill when the crack is wider than about 5 mm, keeps growing, runs diagonally near an opening, or sits with damp or a sagging ceiling. Those are reasons to get advice before any paste, set out in cracks in walls when to worry. Paying £1.25 to hide a crack a builder should see is the expensive version of a cheap tub.