As the days grow longer and temperatures rise, your garden becomes the perfect space for barbecues, family get-togethers, and evenings spent outdoors. But before you invite friends and family over, it’s essential to make sure your decking is looking its best.
Winter weather can leave your decking tired, grimy, and even unsafe. With some focused decking cleaning and maintenance, you can get your deck ready for summer entertaining, and keep it in great condition for the months ahead.
In this guide, we’ll walk you through everything you need to know about preparing your decking for summer, from deep cleaning to resealing and essential upkeep tips.

Why Summer Decking Maintenance Matters
After months of rain, cold temperatures, and debris build-up, decking often emerges from winter looking a little worse for wear. Moss, algae, and mould can thrive on damp wood, creating slippery surfaces and causing structural damage if left untreated.
Preparing your decking for summer not only improves its appearance but also protects it from long-term damage and ensures it’s safe and enjoyable to use.
Step 1: Inspect Your Decking
Before you begin cleaning, take time to inspect your decking for signs of damage. Look for:
- Loose or damaged boards
- Splintering wood
- Rusting screws or fixings
- Areas of visible rot or decay
- Slippery patches caused by algae or moss
Make a note of any repairs you need to carry out before moving on to the cleaning stage.
Step 2: Clear the Surface
Start by clearing all furniture, planters, and outdoor décor off your decking. Use a stiff broom to remove:
- Loose leaves
- Dirt and debris
- Cobwebs and dust
This simple step makes a big difference in reducing build-up and ensures cleaning products work effectively.
Step 3: Deep Clean the Decking
To truly refresh your decking, a deep clean is essential. At Servos Exterior Cleaning, we recommend a professional decking clean using specialist softwashing techniques. Unlike high-pressure washing, softwashing is gentle yet effective, removing algae, moss, and grime without damaging the wood or stripping away finishes.
For DIY maintenance between professional cleans:
- Use a specially formulated decking cleaner or a mix of warm water and mild detergent.
- Scrub the surface with a soft-bristled brush.
- Rinse thoroughly with a garden hose or low-pressure washer.
- Allow to dry completely before treating or sealing.
Avoid harsh bleach-based cleaners and high-pressure power washers, as these can cause splintering and premature ageing of timber decking.
Step 4: Treat and Protect the Wood
Once your decking is clean and dry, it’s the perfect time to apply treatments that protect it from the elements. This includes:
Resealing or Oiling
Applying a sealant or decking oil helps protect the wood from moisture, UV rays, and wear. Choose a product suitable for your decking type (softwood or hardwood) and apply evenly using a brush, roller, or pad.
Anti-Algae and Moss Treatments
To prevent the regrowth of algae or moss, apply a suitable biocide or anti-fungal treatment. Servos can apply long-lasting treatments that help preserve your decking’s condition throughout the summer and beyond.
Step 5: Make Essential Repairs
After cleaning, you might find areas that need repair. Common maintenance jobs include:
- Replacing rotten or warped boards
- Tightening or replacing fixings
- Reapplying anti-slip strips
- Repainting or staining faded surfaces
By addressing minor issues now, you can prevent bigger problems later in the season.
Step 6: Reposition Furniture and Accessories
Once your decking is clean, sealed, and safe, it’s time to get it summer-ready. Clean your furniture before returning it to the deck, and consider adding new accessories like:
- Outdoor rugs
- String lighting
- Planters
- Cushions and throws
These simple additions create a warm and inviting space for entertaining and relaxing.
How Often Should Decking Be Cleaned?
We recommend professional decking cleaning at least once a year, ideally in spring, before summer use. However, properties in shaded, coastal, or high-traffic areas may benefit from more frequent maintenance.
Why Choose Servos for Decking Cleaning?
At Servos Exterior Cleaning, we specialise in safe, effective decking cleaning using professional softwashing methods and eco-friendly products. Whether you’re preparing your garden for summer or want a year-round maintenance plan, we provide:
- Over 10 years of experience in external cleaning
- Fully insured and accredited technicians
- Local authority approved services
- Cleaning tailored for both residential and commercial decking
- Service coverage across North Wales, Cheshire, Wirral, and nearby areas
We understand how important your outdoor spaces are – and we’re here to help you keep them looking their best.
Contact Servos Exterior Cleaning Today
Ready to get your decking summer-ready? Book your professional decking cleaning service with Servos Exterior Cleaning today.
Call us on 01745 289055 or email clean@servosuk.co.uk to request a free quote and to schedule a clean for your decking.