Painting a Summer House: DIY Makeover on a Budget
Like fences, summer houses and garden sheds are exposed to all kinds of weather. As a result, their appearance will naturally change over time. If your summer house or shed is looking a little worn, this doesn’t automatically mean you need to replace it.
Instead, you can save money by giving it a DIY makeover on a budget. Below, we’ll run through some key considerations and three key steps for the best results when painting a summer house. We’ll also look at the importance of painting your summer house, five colour ideas and the best time to get started.
Painting a summer house in three simple steps
What you’ll need…
- Frenchic Al Fresco Paint
- Summer house or garden shed you want to revamp
- Hand-held paint sprayer and paintbrush
- Sandpaper
- Polythene masking sheet & masking tape
- Sugar Soap
Step 1 – Sand & fill
As your summer house ages, the paint will fade and cracks can start to appear as the wood expands in the summer heat. That’s why it’s important that you fill in any cracks before starting painting your summer house.
You should also clean it with sugar soap to remove any dirt, grease and grime. As it's a large area, you might find it easier to clean with a jet washer. Just make sure it’s completely dry before proceeding.
Finally, sand off any old paint to help the new coat adhere better.
It’s worth noting that your summer house will need to be in a decent state of repair if you want lasting results. You can find out more in our FAQ, ‘Can I Paint Wooden Garden Furniture?’.
Step 2 – Prep the windows
Painting a large item is much easier using a paint sprayer, but you need to be careful around windows and other areas of your summer house that you don’t want the paint to adhere to.
We recommend using a polythene masking sheet that you can simply stick along the top of the window and roll down into position. You can then apply more masking tape to the edges to secure it in place.
Step 3 – Paint
Unsure what type of paint you need? The Frenchic Al Fresco range is highly durable and self-sealing, making it ideal for painting your outdoor furniture. It’s also self-priming, so you don’t need to buy multiple products or add any coats before you apply paint to your summer house.
If you’ve never used a paint sprayer before, don’t worry – it’s easy! Just make sure that your hold the machine around four inches away from the surface and adjust the nozzle depending on the direction you want to paint.
When it comes to the window frames and any other detailed areas, use a flat or oval brush to get right into the corners.
All that said, you can use a brush or a roller if spraying isn’t your thing. It will just take a little longer. Rollers are good for speed on large, flat wall panels. However, if your summer house uses tongue and groove panels, a brush might be better to ensure coverage in all the grooves.
Remember, to fully weatherproof your garden furniture, you’ll need at least two coats of paint. It’s also a good idea to remove the masking tape before the paint dries to prevent pulling any off from around the windows.
That’s it – you’re all done and ready for the summer!
Form and function: the importance of painting your summer house
Painting a summer house might seem like a big job, but it’s really satisfying once it’s done. If you’re still in two minds about doing it, here’s why it’s definitely worth your time.
Protection against UV rays and moisture
Outdoor buildings are constantly exposed to sunlight, rain and fluctuating temperatures. Over time, UV rays can cause wood to fade, dry out and crack, while moisture seeps into unprotected timber. A high-quality exterior paint forms a protective barrier, helping to shield your summer house from both sun damage and water ingress.
Preventing rot and mould
When moisture penetrates untreated wood, it creates the perfect conditions for rot and mould to develop. Once this starts, repairs can become costly and time-consuming. Painting your summer house helps seal vulnerable areas like joints and end grains, reducing the risk of damp-related issues.
Extending the lifespan of timber
Timber is a natural material that expands and contracts with changing weather. Without proper protection, this movement can lead to splitting and warping. A durable exterior paint adds an extra layer of resilience, helping your summer house last for many more summers to come.
Improving garden aesthetics
Summer houses are the focal point of many gardens. A freshly painted summer house can completely transform your outdoor space. Whether you choose a bright, airy shade or a bold modern tone, painting gives you the chance to refresh your outdoor space without the cost of replacing the building.
Increasing property appeal
Well-maintained garden structures also add to the overall impression of your home. A smart, nicely painted summer house suggests care and upkeep, which can subtly enhance the overall impression of your home. That’s ideal if you’re thinking about selling in the future.
5 colour ideas for summer houses
Choosing the right colour can completely transform the look and feel of your garden. Whether you want your summer house to blend in or stand out, here are some popular ideas to inspire your makeover.
Classic whites and creams
Soft whites and warm creams create a timeless, elegant look. These shades reflect light beautifully, making smaller gardens feel airier and more open. They’re also ideal if you want a neutral backdrop for colourful plants and outdoor furniture.
The example below uses Cool Beans topped off with Dusky Blush on the eaves, door and windows.
Sage green or olive tones
Muted greens are perfect for blending your summer house into its natural surroundings. Sage and olive tones complement lawns, hedges and flower beds for a cohesive look and a calming garden atmosphere. Here’s a gorgeous example using Wise Old Sage with some cute window boxes on a wendy house.
Coastal blues
From pale duck egg to deeper navy, blue shades give your summer house a fresh, coastal feel. These colours work particularly well in bright, sunny gardens and pair beautifully with white trim.
Charcoal grey for modern gardens
For a contemporary look, charcoal or dark grey offers a bold yet sophisticated finish. This works especially well in minimalist garden designs with clean lines, decking or metal accents. Or pair a dark grey such as Smudge with something lighter like Cream Dream...
Two-tone styles
For added visual interest, consider painting the main walls one colour and the window frames or doors in a contrasting shade. For example, soft sage walls with crisp white trim. Or how about dark grey walls with natural wood accents?
It will give your summer house a bespoke, designer feel like this wendy house using Dusky Blush and bright white.
When’s the best time to paint a summer house?
Waiting for the right conditions is just as important as choosing the right paint. If you’re wondering about the best time to paint a summer house, timing can make all the difference to the finish and durability.
Ideal temperature range: 10–32°C
For the best results, aim to paint when temperatures are consistently between 10°C and 32°C. This allows the paint to cure properly without drying too quickly or struggling to adhere in cold conditions.
Avoid rain and high humidity
Painting before rainfall or during periods of high humidity can trap moisture beneath the surface. Always check the forecast and allow enough drying time between coats. If rain is expected within 24 hours, it’s best to wait.
Avoid direct midday sun
While warm weather is ideal, painting in strong direct sunlight can cause the paint to dry too fast, leading to brush marks or uneven coverage. Early morning or late afternoon is often the best window during summer months.
Spring and early summer are ideal
In the UK, late spring and early summer typically offer the most stable weather conditions with mild temperatures, lower humidity and longer daylight hours. This makes it easier to complete your project in one go.
Can you paint a summer house in winter? It’s possible, but only during dry spells when temperatures stay above the minimum recommended level for your chosen paint. Otherwise, it’s best to wait for milder weather.
Make sure the wood is fully dry
If your summer house has been exposed to rain, allow the timber to dry out completely before painting. As a rule of thumb, wood should be dry for at least 24 to 48 hours after rainfall. For new pressure-treated timber, you may need to wait several weeks before painting to allow excess treatment chemicals and moisture to evaporate.
