Patio Cleaning in Norwich: Costs, Methods & Results

Your patio is where you eat, relax, and entertain — but after a Norfolk winter, it probably looks more green than grey. Algae, moss, lichen, and ground-in grime turn even the nicest patio into a slippery, dingy mess. This guide covers everything Norwich homeowners need to know about patio cleaning: what it costs, which methods work for different surfaces, and how to keep your patio looking fresh all year round.

Why Does Your Patio Need Professional Cleaning?

Norfolk's climate is a perfect storm for patio problems. High humidity, regular rainfall, and mild winters mean that algae and moss grow year-round rather than dying back in cold weather. A patio that looked spotless when it was laid can be unrecognisable within two or three years — particularly in shaded gardens or under overhanging trees.

The problem isn't just cosmetic. Wet algae on patio slabs is genuinely dangerous — it's one of the most common causes of slips and falls in the garden, especially for older residents. If you've noticed a green film on your patio, you've probably also noticed how treacherous it feels underfoot after rain.

Beyond safety, a neglected patio drags down the whole garden. You might have a beautifully maintained lawn (kept sharp with regular lawn mowing) and neatly trimmed borders — but a grimy patio undoes all of that effort. Estate agents in Golden Triangle and Eaton will tell you that clean hard surfaces are one of the fastest ways to improve a garden's appearance for viewings.

How Much Does Patio Cleaning Cost in Norwich?

Professional patio cleaning prices in Norwich depend on the size of the area, the type of surface, and how much build-up needs to be removed. Here's what you can expect to pay in 2026:

• Small patio (up to 15m²): £80–£150
• Medium patio (15–30m²): £150–£250
• Large patio (30–60m²): £250–£400
• Re-sanding block paving joints (additional): £2–£4 per m²
• Sealant application (additional): £3–£6 per m²

Most professional patio cleaners in Norwich charge a fixed price based on area rather than by the hour — which is better for you because there's no incentive to work slowly. The quote should include weed removal from between slabs, the pressure wash itself, and a general tidy-up of debris.

Patio Cleaning by Surface Type

Different patio materials need different approaches. Using the wrong pressure or cleaning solution can cause expensive damage.

Indian Sandstone

One of the most popular patio materials in Norfolk — and one of the trickiest to clean. Indian sandstone is relatively soft and porous, which means it absorbs water, stains easily, and is vulnerable to etching from high pressure. Use a maximum of 1,500 PSI with a wide fan nozzle or rotary surface cleaner. Never use acid-based cleaners — they cause permanent orange discolouration that's impossible to reverse. Specialist alkaline patio cleaners are the way to go, applied as a pre-treatment and left to dwell for 20–30 minutes before rinsing at low pressure.

Concrete Slabs

The workhorse of Norfolk patios. Concrete is more forgiving than natural stone and can handle higher pressures — typically 2,500–3,500 PSI with a rotary surface cleaner gives the best results. Older concrete slabs may have a deteriorated surface that flakes under pressure, so always start with a test patch in an inconspicuous area. Concrete responds brilliantly to pre-treatment with a sodium hypochlorite solution (diluted bleach) — it kills algae and moss at the root, preventing regrowth for months.

Block Paving

Common on patios throughout Thorpe St Andrew, Sprowston, and newer developments across Norwich. Block paving cleans up beautifully but the joints are vulnerable — high-pressure water strips out the kiln-dried sand between blocks, which leads to weed growth and block movement. Always re-sand the joints after cleaning. A sealant on top locks the sand in place and dramatically slows algae return.

Porcelain Tiles

Increasingly popular for modern gardens, porcelain is extremely durable and practically non-porous. It's the easiest surface to clean — most grime sits on top rather than being absorbed. A medium-pressure wash (2,000 PSI) with a surface cleaner makes quick work of even heavy soiling. The main risk is damaging the grouting between tiles, so avoid concentrating the jet on joints.

DIY Patio Cleaning: Does It Work?

You can hire a pressure washer from most tool hire shops in Norwich for £40–£70 per day. Add some patio cleaner (£10–£20) and you're looking at £50–£90 total. So why would you pay more for a professional?

When DIY Makes Sense

• Small patio (under 10m²) with light soiling
• Durable surface like concrete or porcelain
• You're comfortable operating a pressure washer
• You have somewhere to manage the waste water

When to Call a Professional

• Natural stone patios — too easy to damage with consumer machines
• Heavy algae/moss build-up — needs chemical pre-treatment and commercial equipment
• Block paving — joints need proper re-sanding after cleaning
• Large areas — a DIY job on a 30m² patio takes an entire weekend with a consumer machine; a professional does it in 2–3 hours
• You want it sealed — sealing requires the patio to be completely clean and dry, and professional-grade sealants aren't available in B&Q

How to Keep Your Patio Clean Longer

A professional clean transforms your patio overnight — but without maintenance, algae starts creeping back within months. Here's how to extend the life of a clean:

• Seal the surface. A quality sealant prevents algae spores from taking hold and stops stains penetrating. Expect 3–5 years of protection.
• Sweep regularly. Leaves, soil, and organic debris sitting on the surface break down and feed algae growth. A weekly sweep prevents this — combine with an autumn leaf removal if your patio is under trees.
• Treat algae early. If you spot green patches starting, a diluted patio cleaner applied with a watering can kills them before they spread. Much cheaper than waiting for a full clean.
• Fix drainage issues. Standing water on a patio accelerates algae growth. If water pools in certain areas, the slabs may have sunk slightly — re-levelling is cheaper than repeated cleaning.
• Keep borders tidy. Soil washing onto the patio from adjacent beds creates a perfect growing medium for weeds and moss. Edge your borders or install a mowing strip between beds and patio.

Best Time to Clean Your Patio

Spring (March–April) is the ideal time — you clear the winter grime just before the garden season begins, and the patio looks its best for the months when you're actually using it. It's also when GreenRun's pressure washing service gets busiest, so booking early is smart.

Autumn is a good secondary option, especially if your patio is surrounded by deciduous trees. Cleaning after leaf fall and before winter prevents organic material from composting on the surface over the wet months.

Avoid cleaning in freezing weather — water getting into cracks and joints can cause frost damage. Similarly, sealing needs dry conditions and temperatures above 5°C for at least 24 hours after application.

Patio Cleaning + Garden Makeover

A clean patio is often the catalyst for tidying up the whole garden. If you're planning a spring refresh, consider combining your patio clean with:

• Garden clearance — remove overgrown shrubs, weeds, and debris
• Hedge trimming — tidy up borders and boundaries
• Lawn mowing — first cut of the season to refresh your lawn
• Driveway cleaning — do all hard surfaces at once for maximum impact

Whether you've got a cosy courtyard in Norwich city centre, a sprawling stone terrace in Cringleford, or a family patio in Costessey — a professional clean makes a dramatic difference. Done properly, with the right pressure, chemicals, and aftercare, your patio goes from embarrassing to entertaining-ready in a single afternoon.