Summer House Treatments: Protect and Personalise Your Garden Getaway

Summer houses aren’t just a lovely garden feature — they’re your own little escape. Whether it’s a home office, reading nook, or a place to relax with a cuppa, it deserves to look great and stay protected all year round. That’s where the right summer house treatments come in.

Timber buildings are always at the mercy of the weather, so a good quality wood treatment is a must. Start with a wood preserver, such as Barrettine Log Cabin Treatment, to keep out moisture, mould, algae and wood-boring insects. It’s like giving your summer house a shield — and you can choose clear, like Protek Wood Stain And Protect - Clear Tough Coat, or coloured versions similar to Osmo UV Protection Oil Extra, depending on the look you want.

Once that base protection is sorted, you’ve got options. Want to keep the natural wood tones? Go for an exterior wood oil like Osmo Natural Oil Woodstain. It soaks into the timber to nourish and protect, giving it a rich, healthy finish without covering up the grain. If colour’s more your thing, garden paints are a brilliant way to add personality, such as Cuprinol Garden Shades or Farrow and Ball Exterior Eggshell. They’re designed to flex with the wood, so they won’t crack or peel — even after a frosty winter or a sizzling summer.

Top picks for summer house care:
• Clear or coloured wood preservers to stop rot and fungi
• Flexible garden paints in everything from soft pastels to bold brights
• UV-resistant wood oils for a natural, low-sheen finish
• Easy-to-apply treatments for DIY-friendly maintenance

Whether your summer house is fresh from the showroom or has been part of your garden for years, it deserves the right care. With the proper treatments, you can keep it looking fantastic and protect it against the elements for the long haul.

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Displaying 71 products

Recommended Special Offer
  4.8/5.0  (1429)
£1.55 - £293.25
Save up to 15%
Ultimate protection for exterior wood with factor 12 UV filters to protect against the greying effects of UV damage.
  • 2 coats
  • 20m² per litre
  • 12 hrs drying time
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Available in 5ml sample, 125ml, 750ml, 2.5L, 10L
Recommended
  4.8/5.0  (625)
A wide range of attractive colours that provide long lasting protection for all types of garden wood. Cuprinol Garden Shades is a water-based paint, touch dry within one hour.
  • 2 coats
  • 10m² per litre
  • 1 hr drying time
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Available in 125ml, 1L, 2.5L, 5L
Recommended
  4.8/5.0  (426)
A highly durable garden paint for wood, metal, brick, and terracotta. Ideal for sheds, fences and more.
  • 3 coats
  • 12m² per litre
  • 4 hrs drying time
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Available in 250ml, 750ml, 2.5L, 5L
Recommended
  5.0/5.0  (614)
A high-quality clear oil for exterior use that offers excellent protection against water ingress.
  • 2-3 coats
  • 8m² per litre
  • 48 hrs drying time
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Available in 5L
Special Offer
  4.9/5.0  (2993)
A solvent-based preservative that offers microporous protection against wood rot, fungi, decay and mould. Available in 7 colours or clear.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
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Available in 1L, 5L
Special Offer
  5.0/5.0  (1325)
A UV-resistant, deep penetrating, low odour protective treatment for all exterior wood that is harmless to beneficial insects and plants when dry.
  • 2-3 coats
  • 6m² per litre
  • 48 hrs drying time
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Available in 1L, 2.5L, 5L
  4.7/5.0  (595)
An all-in-one translucent wood stain that colours, protects, feeds and enhances exterior wood and joinery.
  • 2 coats
  • 26m² per litre
  • 12 hrs drying time
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Available in 5ml sample, 125ml, 750ml, 2.5L
Special Offer
  4.7/5.0  (469)
An oil-based, opaque, colour finish for exterior wood with excellent weather and UV resistant properties
  • 2 coats
  • 26m² per litre
  • 12 hrs drying time
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Available in 5ml sample, 125ml, 750ml, 2.5L
  4.9/5.0  (413)
A versatile varnish-based wood stain for interior and exterior use.
  • 1-2 coats
  • 10m² per litre
  • 24 hrs drying time
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Available in 1L, 2.5L, 5L
  4.8/5.0  (309)
A complete wood preservative treatment that protects exterior wood from wood rot, decay and woodworm.
  • 3 coats
  • 8m² per litre
  • 24 hrs drying time
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Available in 5L
  4.9/5.0  (322)
A highly durable, medium build, solvent-borne exterior woodstain that provides a highly translucent, UV resistant, semi-gloss finish.
  • 2 coats
  • 16m² per litre
  • 16 hrs drying time
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Available in 1L, 2.5L, 5L
  4.8/5.0  (233)
A low build, solvent-borne, matt woodstain. Can be used both as a base stain and as a finishing coat.
  • 1-3 coats
  • 12m² per litre
  • 24 hrs drying time
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Available in 1L, 2.5L, 5L
  4.3/5.0  (159)
A biodegradable wood reviver designed to restore the natural character and colour of sun and weather damaged wood.
  • 1-2 coats
  • 10m² per litre
  • 20 mins drying time
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Available in 500ml, 2.5L, 5L, 10L
  4.9/5.0  (153)
A low-odour wood treatment without wax that offers microporous protection against wood rot, fungi, decay and mould.
  • 2-3 coats
  • 6m² per litre
  • 12 hrs drying time
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Available in 1L, 5L
  4.9/5.0  (161)
A water-based timber protection and colour treatment lasting up to 5 years.
  • 2 coats
  • 5m² per litre
  • 4 hrs drying time
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Available in 1L, 4L
  4.6/5.0  (100)
Remove black fungal growth on any wooden surface.
  • 1-2 coats
  • 10m² per litre
  • 24 hrs drying time
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Available in 4L
  4.9/5.0  (83)
An exterior water-based wood preservative for rough and smooth garden timbers available in 5 shades.
  • 2-3 coats
  • 5m² per litre
  • 4 hrs drying time
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Available in 5L
  5.0/5.0  (73)
Protective wood oil with additional UV filters that protects interior and exterior wood from the greying effects of the suns UV rays.
  • 2 coats
  • 20m² per litre
  • 12 hrs drying time
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Available in 125ml, 750ml, 2.5L
  4.8/5.0  (167)
A high quality, water-based, protective exterior wood paint for use on softwood and hardwood surfaces. Hard wearing, quick drying and water repellent.
  • 2-3 coats
  • 8m² per litre
  • 4 hrs drying time
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Available in 125ml, 1L, 2.5L, 5L
  4.8/5.0  (70)
Quickly eliminate and protect against woodworm and woodboring insects.
  • 2 coats
  • 5m² per litre
  • 48 hrs drying time
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Available in 1L, 2.5L, 5L
Need advice on which products to choose?
Call our wood wizards on 01303 213838