Best Polycell Expanding Foams of 2025

Corey Phillips Avatar
Corey Phillips
Last Updated: 11 Feb 2025

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Expanding foams are versatile products that can be used for a variety of purposes, such as filling gaps, insulating pipes, and even stabilising fence posts. Polycell's expanding foams are a reliable choice for anyone looking for a high-quality foam that can be easily applied and will provide excellent results. With a range of different options available, such as fire-resistant and waterproof foams, Polycell has a foam for every job. Whether you're a professional tradesperson or a DIY enthusiast, Polycell's expanding foams are a great choice to help you get the job done.

At a Glance: Our Top Picks

Polycell Flexible Gap Polyfilla for Skirting Cover #TOP 1
Polycell Flexible Gap Polyfilla for Skirting
ftb score rating icon 9.9
Polycell Crack-Free Ceilings Smooth Matt Paint Cover #TOP 2
Polycell Crack-Free Ceilings Smooth Matt Paint
ftb score rating icon 9.8
Polycell Woodflex Polyfilla for Wood Cover #TOP 3
Polycell Woodflex Polyfilla for Wood
ftb score rating icon 9.6

Top 7 Polycell Expanding Foams

#TOP 1

Polycell Flexible Gap Polyfilla for Skirting

PLCFGFC290S
white
290ML
Polycell Flexible Gap Polyfilla for Skirting Cover
Polycell Flexible Gap Polyfilla 290ML

Polycell Flexible Gap Polyfilla is designed to accommodate movement, making it ideal for filling gaps along skirting boards, door frames, and window frames. Its flexible nature ensures that the filler adapts without cracking, providing a long-lasting solution for your home. You will appreciate how it handles movement without losing its effectiveness, ensuring a neat finish. This product is particularly useful for maintaining a tidy appearance in areas prone to expansion and contraction, offering a reliable fix for unsightly gaps.

What We Like
Flexible for accommodating movement
Resistant to cracking
Ideal for skirting and frames
Long-lasting solution
#TOP 2

Polycell Crack-Free Ceilings Smooth Matt Paint

PLCCFCSM5L
Polycell Crack-Free Ceilings Smooth Matt Paint Cover
Polycell CFCSM5L 5L Crack-Free Ceilings Smooth Matt

The Polycell Smooth Matt Paint is designed to permanently cover unsightly cracks and stains, giving your ceilings a fresh, new appearance. Its flexible formulation allows it to adhere well to plaster, plasterboard, and masonry surfaces, ensuring a smooth finish that enhances the overall look of your room. This matt finish not only adds elegance but also helps to disguise imperfections. With this product, you can easily achieve a flawless ceiling that elevates your interior décor.

What We Like
Permanently covers cracks
Smooth, new-looking finish
Flexible formulation
Suitable for various surfaces
Matt finish enhances appearance
#TOP 3

Polycell Woodflex Polyfilla for Wood

PLCWFLEX600S
Polycell Woodflex Polyfilla for Wood Cover
Polycell WFLEX600S 600ml Woodflex Polyfilla Tub

The Polycell Woodflex Polyfilla is specially developed for wood, making it an excellent choice for all your wood-filling tasks. Its flexibility allows it to expand and contract with the wood, ensuring a strong bond that lasts. You can also stain it, allowing for a seamless finish that matches your wood's natural colour. Additionally, it is water-resistant, making it suitable for both indoor and outdoor use. This versatility means you can tackle various projects with confidence.

What We Like
Flexible and durable
Stainable for a perfect finish
Strong bonding for repairs
Suitable for indoor and outdoor use
#TOP 4

Polycell Expanding Foam Filler Gap Gun 500ml

PLCEFFGG500
White
500ml
Polycell Expanding Foam Filler Gap Gun 500ml Cover
Polycell EFFGG500 500ml Expanding Foam Filler Gap Gun

The Polycell Expanding Foam is a versatile filler designed to seal gaps effectively. With its 500ml capacity, it allows you to tackle various filling tasks around your home with ease. This expanding foam is particularly useful for insulating spaces, helping to keep your home energy-efficient. Additionally, it adheres well to different surfaces, ensuring a strong seal. You will find that this product simplifies your DIY projects, providing a reliable solution for those tricky gaps and crevices.

What We Like
Effective gap sealing
500ml capacity
Energy-efficient insulation
Strong adhesion
#TOP 5

Polycell 825 ml Expanding Foam Polyfilla

PLCEF825
White
825ml
Polycell 825 ml Expanding Foam Polyfilla Cover
Polycell Expanding Foam Polyfilla, 825 ml

The Polycell Expanding Foam is a versatile 825 ml solution designed for various filling and sealing tasks. This expanding foam is ideal for filling gaps and cracks around your home, providing a strong and durable seal. Its easy application allows you to effortlessly tackle DIY projects, making repairs quicker and more efficient. Additionally, it expands to fill the space, ensuring a tight fit that helps prevent drafts and moisture ingress, ultimately enhancing your home's insulation.

What We Like
Easy to apply
Expands to fill gaps
Durable and strong seal
Improves home insulation
Versatile for various tasks
#TOP 6

Polycell Expanding Foam Filler 400 g

PLCEFF300
White
400 g
Polycell Expanding Foam Filler 400 g Cover
Polycell Fine Surface Filler Tube, 400 g

The Polycell Expanding Foam is a convenient solution for filling gaps and cracks in various surfaces. With its expanding properties, it allows you to effectively seal areas that may otherwise be difficult to reach. This makes it an ideal choice for DIY enthusiasts looking to improve their home’s insulation or aesthetics. The 400 g tube is easy to handle, ensuring that you can apply just the right amount without any mess. Overall, this product is designed to save you time and effort in your repairs.

What We Like
Easy to apply
Expands to fill gaps
Convenient 400 g tube
Ideal for DIY projects
Improves insulation
#TOP 7

Polycell 1.8Kg Multi-Purpose Polyfilla Powder

PLCMPP18KGS
gray
1.8 Kg
Polycell 1.8Kg Multi-Purpose Polyfilla Powder Cover
Polycell MPP18KGS 1.8Kg Multi-Purpose Polyfilla Powder

The Polycell Polyfilla Powder is a versatile solution for all your filling needs. This multi-purpose powder is ideal for repairing cracks and holes in various surfaces, ensuring a smooth finish. Its expanding formula allows for effective coverage, making it easy for you to achieve professional results at home. With a convenient 1.8Kg size, you can tackle multiple projects without the worry of running out too quickly, ensuring your DIY tasks are completed efficiently.

What We Like
Versatile for various surfaces
Easy to apply
Expanding formula for good coverage
Convenient 1.8Kg size
Buying Guide Image
Editor's Notes

During our Polycell expanding foam research, we found 7 Polycell expanding foam products and shortlisted 7 quality products. We collected and analyzed 28,868 customer reviews through our big data system to write the Polycell expanding foams list. We found that most customers choose Polycell expanding foams with an average price of £9.48.

The Polycell expanding foams are available for purchase. The top 7 picks range in price from a low of £4.00 to a high of £39.00, find the one that fits your budget.

Written by
Corey Phillips Avatar

Corey Philips is an electrician and lighting expert. He graduated from the University of Birmingham in 2012 with a Bachelor's degree in electrical and electronics engineering. Corey is a specialist contractor in lights. He sells and installs and recommends lights and lamp sheds, and other lights accessories. Aside from that, Corey is vast in installing and maintaining electrical appliances like air conditioners, water heaters, and the likes.