Harvia Sauna Woodburning heater set With Chimney, Extension, Stones and Heat Shields

Painted vs Treated vs Untreated Garden Buildings

Unprocessed wood naturally weathers over time, turning grey and becoming susceptible to blue stain, mould, and decay. Treating the timber with preservatives protects it from fungi, insects, and moisture, helping extend its lifespan and appearance. Palmako’s in-house treatment options save you time and ensure consistent, high-quality protection for every product.

Why Choose a Pre-Painted Garden Building Kit?

Controlled Painting Environment
Every part is painted to ensure total protection. So forget about rain, humidity, pollen, or dust, our climate-controlled factory painting ensures the perfect conditions and paint drying temperature. The painted finish will last season after season.

Time and cost efficient
You'll have immediate protection from the moment of installation and longer lifespan than those painted post-assembly. No need to buy brushes, tarps, or ladders. No lost weekends or weather worries. Your new cabin arrives ready to just unpack, assemble, and enjoy.

No brush marks or uneven tones 
Our cabins are painted with precision using high-quality professional equipment. Factory-applied coatings penetrate and seal the wood before assembly. This shields your cabin from moisture, UV rays, and fungus better.

We offer three types of surface treatment, depending on the product:

• Factory-painted;
• Dip-treated;
• Pressure-treated.

1 - Factory-Painted Cabins (Garden Rooms, Sheds, Garages, Playhouses, Saunas) - Painted Externally

We’ve invested in state-of-the-art painting robots that allow us to coat even complex products like log cabins with precision in a controlled environment. This ensures consistent coverage and durability that’s hard to achieve with post-assembly painting. The result is a cleaner, longer-lasting finish that’s ready to withstand the elements from day one.

Why Choose Factory Painted?

• Time and Cost Efficient: Painting is a laborious and costly task. Our pre-painted buildings bypass the need for you to undertake this effort.
• Longer Lifespan: Factory-painted buildings have a longer lifespan than those painted post-assembly because our buildings are painted under controlled conditions, ensuring a dry and optimal setting for paint application.
• Immediate Protection: From the moment of installation, your building is protected against moisture, which is crucial in the unpredictable British weather.
• Uniform Comprehensive Coverage: Achieves an even coat impossible to replicate with manual painting.

What is painted:

• Exterior Walls: Pre-painted with a durable finish.
• All Sides of Log Ends Painted: Ensures uniform appearance even as the wood dries, preventing unpainted areas from showing.
• Fully Painted Fascia Boards and Slats: All sides are coated in a stylish RAL7016 to complement any garden setting.
• Canopy walls: painted on both sides.

What is not painted:

• Internal walls, leaving you the choice to finish the interior the way you desire.
• Foundation beams.
• Floor boards.
• Roof boards.
• Rafters.

2 - Fully Painted Products (Gazebos, Carports, Lenna and Bianca Sets)

Our fully painted products are finished using advanced flow-coating and spray chamber technology to achieve a smooth, consistent surface. After painting, each product is carefully dried in a 30-metre controlled chamber, where conditions are precisely monitored for optimal results. This guarantees a durable, high-quality finish that stands the test of time.

3 - Dip-Treated (Available for Most Garden Rooms and Log Cabins)

We carry out our own dip treatment using Axil 3000 P by Sarpap & Cecil Industries — a water-based wood preservative that provides protection within use classes 1–3. The treatment helps protect against decay, mould, and insect damage, forming a reliable base for further finishing.

For best results, the dipped wood should be coated with at least two layers of topcoat as soon as possible. If left uncoated for more than six months, the protective properties will begin to diminish.

4 - Pressure-Treated (Available for Selected Sheds and Greenhouses)

Our pressure treatment process uses vacuum and pressure technology to ensure deep penetration of the preservative into the wood fibres. The treatment is carried out with Impralit®-KDS — a water-borne, chromium-free preservative that protects against insect attack, soft rot, and fungal decay, while also offering temporary resistance to blue stain and mould. It is suitable for use classes 1–4 as defined in EN 335-1, ensuring extended durability and long service life for our timber products.

You will find available treatment options next to each product under the Treatment section.