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How to Maintain Your Patio Over Winter: Protect Your Investment After Installation

Winter can be tough on patios — frost, rain, and leaf debris can all take their toll. At Plex, we believe proper seasonal maintenance keeps your patio looking great and performing well for years to come. In this post, we’ll explain the simple steps our team recommends after a new installation, from cleaning and sealing to drainage checks and frost protection. A few hours of care now can prevent costly repairs in spring.

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Why Winter Maintenance Matters

Even the strongest patio can suffer if left unprotected during cold, wet months. Frost can penetrate porous paving, water can pool and cause discolouration, and organic build-up (like moss and algae) can make surfaces slippery.

This is particularly true in Worcestershire, where clay-heavy soil expands when frozen, putting pressure on patios from below. By carrying out a few essential maintenance tasks, you can prevent costly damage and keep your patio looking freshly installed.

At Plex, we recommend checking your patio’s condition every autumn — ideally before the first frost — so you can fix any small issues before they grow into larger ones.

Step 1: Thorough Cleaning Before Frost Arrives

The first step is always a deep clean. Fallen leaves, soil, and organic debris trap moisture and can stain or encourage algae growth.

We use low-pressure jet washing with a rotary surface cleaner to safely lift grime without disturbing joints. For new installations, this should be done gently to avoid dislodging sand or jointing compound.

For DIY maintenance, use a stiff brush, mild patio cleaner, and clean water — avoid harsh acids that may damage natural stone or concrete finishes.

Regular brushing through the winter prevents surface build-up and keeps the area safer underfoot.

Step 2: Check and Clear All Drainage Channels

Blocked drainage is one of the most common causes of winter patio problems. When water sits on the surface, it can freeze, expand, and cause cracks or lifting.

We recommend inspecting all channel drains, gullies, and joint gaps to ensure water flows away freely. If your patio includes a soakaway or French drain system (common in Plex installations), remove any debris or silt that may have accumulated during autumn.

If pooling is still visible after heavy rain, it may indicate a small settlement or grading issue — something our team can easily address with levelling or re-pointing.

Step 3: Re-Seal or Protect the Surface

A quality patio sealant adds an invisible barrier against moisture, frost, and staining. Over time, sealants naturally wear off — especially in high-traffic or exposed areas.

For most materials, we recommend resealing every 2–3 years, but a light re-coat before winter can be highly beneficial for new patios. This is particularly important for:

  • Sandstone – naturally porous and can absorb water.
  • Concrete slabs – susceptible to frost damage and efflorescence.
  • Porcelain – low-porosity but benefits from sealed joints.

Our team applies professional-grade breathable sealers that protect against water ingress without trapping moisture — ensuring the patio can still naturally “breathe.”

Step 4: Inspect Jointing and Edges

Mortar joints and edge restraints often take the brunt of weather changes. Over time, small cracks may appear, especially if the patio has experienced settling or if water has frozen in gaps.

Before winter sets in, walk around your patio and look for:

  • Loose or missing jointing compound
  • Small gaps around the perimeter
  • Signs of weeds emerging through joints

Repointing with a polymeric jointing compound or resin sand helps seal out water and prevents weed growth. If any edge restraints are loose (particularly in gravel or sleeper-bordered patios), these should be re-secured before frost can widen the gaps.

Step 5: Manage Frost and Ice Safely

During winter, ice and frost are inevitable — but how you deal with them can make a big difference to your patio’s lifespan.

Avoid using rock salt or harsh de-icers, as these can corrode surfaces or stain natural stone. Instead, use:

  • Calcium chloride granules – gentler on paving.
  • Sand or grit – provides traction without chemical damage.

Never chip away ice with metal tools — this can scratch and chip the paving surface. If the patio becomes slippery, use a soft broom and warm water once temperatures rise above freezing.

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1. Clean before frost sets in.
Debris traps moisture — cleaning early prevents staining and frost damage.

2. Drainage must flow freely.
Blocked drains or trapped water cause cracks and lifting when frozen.

3. Sealants protect against winter wear.
A breathable patio sealant stops frost penetration and staining.

4. Keep joints in good condition.
Repair cracks and loose joints to keep moisture out and weeds down.

5. Use gentle frost treatments.
Avoid rock salt — use calcium chloride or grit instead.

6. Book a professional check.
An expert eye can spot and fix small issues before they turn costly.

Should I seal my patio before winter?

Yes — sealing before winter helps prevent frost damage, staining, and water ingress.

Can I pressure wash my patio in cold weather?

Avoid pressure washing in freezing conditions, as water can refreeze and damage joints.

What’s the best way to stop my patio going green?

Regular brushing and a biocidal patio cleaner will prevent algae and moss growth.

Do all patios need resealing?

Most natural stone and concrete patios benefit from resealing every few years for full protection.

Step 6: Protect Furniture and Features

Leaving garden furniture, planters, or fire pits in place all winter can cause moisture marks or uneven weathering. We suggest:

  • Moving metal furniture indoors or under cover.
  • Raising planters slightly off the ground to prevent trapped water.
  • Storing parasols, cushions, and décor away from damp.

These small steps keep the patio’s surface evenly weathered and free of rust stains or ring marks.

Step 7: Schedule a Professional Patio Check-Up

If your patio was recently installed, the first winter is particularly important. Subtle settlement, shifting, or joint cracking can occur as the base and bedding layers experience their first freeze-thaw cycle.

At Plex, we offer post-installation maintenance visits for our clients across Worcestershire. During these visits, we:

  • Inspect for early signs of movement or water pooling.
  • Repoint or seal as needed.
  • Clean and treat the surface for moss or algae prevention.

This proactive care extends the lifespan of the patio and keeps it looking as sharp as the day it was installed.

Conclusion

Your patio is built to last — but it deserves protection from the toughest months of the year. With the right preparation and maintenance, you’ll prevent damage, maintain appearance, and save on costly spring repairs. At Plex, we believe great landscaping doesn’t end at installation. From sealing and cleaning to drainage and restoration, our team offers comprehensive aftercare services across Worcestershire. Whether it’s a simple maintenance visit or a full patio refresh, we’re here to help your outdoor space look its best all year round.

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