10 Best Outdoor Wood Filler in The UK

Last updated on 05/07/2025
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Best Choice
1
9.8
Exceptional
Ronseal 35304 High Performance Wood Filler - Natural 550g
Ronseal
Ronseal 35304 High Performance Wood Filler - Natural 550g
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Why We Love It
  • Provides extremely tough wood repairs.
  • Can be drilled, screwed, planed.
  • Cures wet rot effectively.
Main Highlights
  • The Ronseal RSLHPWFN550G is supplied in a tub with re-sealable lid.
  • It is a chemically bonded filler and catalyst that provides extremely tough repairs to virtually any wood damage without shrinking or cracking
  • Fills to any depth and can be drilled, screwed or planed
  • Can be drilled, screwed or planed
  • Rebuilds rotten wood
  • Cures wet rot and prevents recurrence
  • No shrinking or cracking
  • For interior and exterior use
9.8
Exceptional
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Best Value
2
9.7
Exceptional
Toupret Wood Repair Filler 1kg
Toupret
Toupret Wood Repair Filler 1kg
Free Shipping
Why We Love It
  • Reliable with Toupret technology.
  • Exceptionally lightweight at 1.05 Kgs.
  • Guarantees high performance.
Main Highlights
  • Proven reliable Toupret technology
  • Lightweight construction at just 1.05 Kgs
  • High performace for the home or tradesman
  • Item package quantity: 1
9.7
Exceptional
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3
9.5
Superb
Save 17%
Toupret Wood Filler 1.25kg
Toupret
Toupret Wood Filler 1.25kg
17% OffFree Shipping
Why We Love It
  • Proven technology ensures reliability.
  • Lightweight design for easy handling.
  • High performance for all users.
Main Highlights
  • Proven reliable Toupret technology
  • Lightweight construction at just 1.3 Kgs
  • High performace for the home or tradesman
  • Item package quantity: 1
9.5
Superb
Save 17%
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4
9.4
Superb
Roxil Wood Filler (White) 220 cm³ Coverage - Premium Quality: Fully Stainable, Vacuum Packed, Low Hazard Formulation, Superior Moulding and Sanding Properties. Easier, Smoother, Kinder.
Roxil
Roxil Wood Filler (White) 220 cm³ Coverage - Premium Quality: Fully Stainable, Vacuum Packed, Low Hazard Formulation, Superior Moulding and Sanding Properties. Easier, Smoother, Kinder.
Free Shipping
Why We Love It
  • Safe and easy to use.
  • Excellent moulding and adhesive.
  • Supports multiple layers buildup.
Main Highlights
  • ✅ Roxil Wood Filler is a Premium Quality 2-part wood repair and restauration solution designed to be Safe, Easy & pleasant to use by Amateurs and provide the high performance needed for Professional standards.
  • ✅ [Microscopic Glass Bead Technology] – the high-quality formulation has excellent moulding, adhesive and sanding properties, making it a pleasure to work with and enabling even the most novice to get it right on first attempt.
  • ✅ [Easier, Smoother, Kinder] Styrene, a substance contained in some wood fillers on the market, is a carcinogen and an environmental hazard. Roxil Wood Filler does not contain styrene and is not a health hazard material, making it safer to use.
  • ✅ [Strong, Long-Lasting Wood Repairs] Can be used in interior or exterior settings; allows multiple layers to be built up for larger defects. Vacuum production process ensuring every product is free of air bubbles and inconsistencies providing a great experience each time.
  • ✅ [Fully Stainable and Paintable] Cures in under 30 minutes to a super tough solid consistency. Once set you can drill, screw, sand and plane. 220 cm³ coverage. Compatible with Roxil Wood Protection Cream for long-lasting waterproof protection for wood.
9.4
Superb
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5
9.3
Superb
Siramico Hardener for Rotted Wood | 500ml | Clear Deep Penetrating Wood Hardener | Suitable for All Timber Types
SIRAMICO COATINGS
Siramico Hardener for Rotted Wood | 500ml | Clear Deep Penetrating Wood Hardener | Suitable for All Timber Types
Why We Love It
  • Powerful and deep penetration.
  • Suitable for interior and exterior.
  • Long-lasting water-resistant barrier.
Main Highlights
  • POWERFUL FORMULA: Specially formulated to restore wet, rotted wood to a solid, durable state. This wood hardener penetrates deep into the wood, strengthening and reinforcing it for future projects.
  • VERSATILE APPLICATION: Suitable for both interior and exterior timber, including window sills, door frames, and structural beams, offering versatile usage across various wood surfaces.
  • EASY TO APPLY: The liquid formula applies easily with a brush or roller, ensuring thorough penetration into damaged wood. It can also be used on damp wood for effective results.
  • LONG-LASTING PROTECTION: Once cured, the hardener creates a water-resistant barrier that helps prevent further deterioration, preserving the wood for years.
  • CONVENIENT SIZING: Available in a 500ml recycled metal tin with easy-pour functionality, covering up to 8m², ideal for both small and large projects.
9.3
Superb
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6
9.1
Superb
Ronseal - Smooth Finish Exterior Multi Purpose Ready Mix Filler Tub 1.2 kg
Ronseal
Ronseal - Smooth Finish Exterior Multi Purpose Ready Mix Filler Tub 1.2 kg
Free Shipping
Why We Love It
  • Re-sealable lid for convenience.
  • Versatile indoor and outdoor use.
  • Repairs multiple surfaces easily.
Main Highlights
  • The Ronseal RSLERMF12KG is supplied in a 1.2kg tub with re-sealable lid.
  • Both For interior and exterior use
  • For use in repairing plaster, stone, concrete or brickwork
9.1
Superb
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7
9.0
Superb
Save 16%
Ronseal 33365 Multi-Purpose Wood Filler - Natural 310ml
Ronseal
Ronseal 33365 Multi-Purpose Wood Filler - Natural 310ml
16% OffFree Shipping
Why We Love It
  • Natural Finish enhances aesthetic appeal.
  • Flexible formula prevents damage.
  • Versatility in staining options.
Main Highlights
  • The Ronseal RSLMPWFN310 has a Natural Finish and is supplied in a 310ml Cartridge.
  • The flexible formula resists shrinking and cracking and it can be stained, varnished or painted
  • For interior and exterior use, Once dry, simply sand then stain, varnish or paint over
9.0
Superb
Save 16%
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8
8.9
Excellent
Save 23%
Everbuild 2-Part High Performance Wood Filler – Fast Drying – Weatherproof – Easy to Mix and Apply – Light Stainable – 500g
Everbuild
Everbuild 2-Part High Performance Wood Filler – Fast Drying – Weatherproof – Easy to Mix and Apply – Light Stainable – 500g
23% OffFree Shipping
Why We Love It
  • Versatile for various surfaces.
  • Quick drying for easy use.
  • Durable finish stands the test.
Main Highlights
  • VERSATILE – Suitable for general wood filling of windowsills, frames, doors, door frames, bannisters, MDF and laminates.
  • DURABLE – Ideal for repairing corner pieces in furniture or wooden construction, chipping, and marred parquet or laminate floors.
  • TEMPERATURE RESISTANT – Suitable for temperatures as low as -20°C and as high as over +100°C once dry.
  • QUICK DRYING – Provides a long lasting and shatterproof finish that can be sanded, stained, painted, varnished or dyed 30 minutes after application.
  • DURABLE – The finish is strong enough to be drilled, nailed, planed or carved.
  • MULTIPLE SHADES AND SIZES – Available in light stainable, medium stainable, mahogany, oak, pine, redwood and white and in 500g, 1.5kg and 6kg tubs.
8.9
Excellent
Save 23%
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9
8.7
Excellent
Save 10%
White Wood Filler Interior & Exterior 500g + Flexible 3" Filling Tool – Weather-Resistant, Quick-Drying Wood Putty for Cracks, Holes & Gaps – Paintable Outdoor & Indoor Wood Repair
APHY ENTERPRISES
White Wood Filler Interior & Exterior 500g + Flexible 3" Filling Tool – Weather-Resistant, Quick-Drying Wood Putty for Cracks, Holes & Gaps – Paintable Outdoor & Indoor Wood Repair
10% OffFree Shipping
Why We Love It
  • High-performance for quick repairs.
  • Includes flexible applicator tool.
  • Sands smoothly for flawless finish.
Main Highlights
  • WHITE WOOD FILLER 500G FOR INTERIOR & EXTERIOR USE: High-performance wood filler ideal for repairing cracks, holes, dents, and surface damage on doors, furniture, floors, skirting boards, and more.
  • INCLUDES FLEXIBLE 3" FILLING TOOL FOR EASY APPLICATION: Comes with a smooth, bendable 3-inch applicator to help you fill and spread with precision – perfect for DIY wood repair jobs.
  • QUICK-DRYING WOOD FILLER FOR FAST REPAIRS: Reduces downtime on projects with fast drying time; ideal for interior and exterior wood repairs where speed matters.
  • EASY TO SAND AND PAINTABLE FINISH: Sands down to a smooth surface and accepts paint, varnish, or wood stain for a clean, invisible repair that matches existing woodwork.
  • WOOD FILLER FOR CRACKS, HOLES, AND GAPS: Designed to fix small and large imperfections on softwoods and hardwoods – long-lasting, shrink-resistant, and weather-tough.
8.7
Excellent
Save 10%
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10
8.7
Excellent
Save 16%
Ronseal MPWFD310 310ml Multi-Purpose Wood Filler Cartridge - Dark
Ronseal
Ronseal MPWFD310 310ml Multi-Purpose Wood Filler Cartridge - Dark
16% OffFree Shipping
Why We Love It
  • Flexible, resists shrinking and cracking.
  • For interior and exterior use.
  • Easy to stain, varnish, paint.
Main Highlights
  • The Ronseal RSLMPWFD310 has a Dark Finish and is supplied in a 310ml Cartridge.
  • The flexible formula resists shrinking and cracking and it can be stained, varnished or painted
  • For interior and exterior use, Once dry, simply sand then stain, varnish or paint over
8.7
Excellent
Save 16%
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