Keeping the outside of your home clean is not just about making it look better. Regular exterior cleaning can help remove dirt, algae, moss, stains and other buildup before they become more difficult to deal with.

But when is the best time of year for exterior cleaning?

For homeowners in London, there is no single perfect month for every cleaning job. Different surfaces and services are better suited to different times of the year.

Spring is often an excellent time for general exterior cleaning, while summer provides longer daylight hours and generally better drying conditions. Autumn is particularly important for gutter cleaning, and winter is usually better suited to inspections and essential maintenance rather than large-scale outdoor cleaning.

In this guide, we’ll explain the best time to clean different parts of your property and how London’s changing weather can affect exterior cleaning.

8

What Is the Best Time of Year for Exterior Cleaning?

For most London homes, spring is one of the best times for a full exterior cleaning.

After the colder and wetter winter months, outdoor surfaces can accumulate:

• Dirt
• Moss
• Algae
• Mud
• Black spots
• Organic debris
• Leaves
• General grime

A thorough spring clean can restore the appearance of your property before the main outdoor season begins.

However, not every cleaning service needs to wait until spring.

The right timing ultimately depends on the surface, weather conditions and condition of your property.

How Much Does Exterior Cleaning Cost in London?

Planning to clean your driveway, patio or other outdoor surfaces? Before booking a professional service, it’s helpful to understand the typical costs and what factors can affect the final price.

Read our complete guide to [How Much Does Pressure Washing Cost in London?] and learn about average prices, cost factors and what to expect from a professional pressure washing service.

Exterior Cleaning in Spring

March to May

Spring is an excellent time to inspect your property and deal with the buildup caused by winter.

As temperatures begin to rise and daylight hours increase, homeowners can identify problems that may have developed over the colder months.

What should you clean in spring?

Spring is particularly suitable for:

• Driveways
• Patios
• Paths
• Decking
• Exterior walls
• Windows
• Outdoor furniture
• Garden walls

Moss and algae can become particularly noticeable on shaded and damp surfaces.

Removing them early can help improve the appearance of the property and reduce slippery areas.

7

Why Spring Is a Good Time for Pressure Washing

Pressure washing is often easier to schedule during spring because homeowners can prepare their outdoor spaces before using patios and gardens more frequently.

Cleaning your driveway or patio in spring can also give you a fresh-looking outdoor space for:

• Garden parties
• BBQs
• Family gatherings
• Outdoor dining
• Summer entertaining

However, professional cleaners should always consider the weather and surface conditions before starting work.

Exterior Cleaning in Summer

June to August

Summer can provide some of the most convenient conditions for exterior cleaning.

Longer daylight hours can make scheduling easier, while warmer conditions can help cleaned surfaces dry more quickly.

Summer is particularly suitable for:

• Driveway cleaning
• Patio cleaning
• Pressure washing
• Decking cleaning
• Exterior wall cleaning
• Window cleaning

8

Is Summer the Best Time to Pressure Wash?

Summer can be an excellent time for pressure washing, but hot and very dry conditions are not always ideal for every cleaning treatment.

For example, certain cleaning solutions need sufficient dwell time and should not dry too quickly on a surface.

Professional cleaners can adjust their approach depending on:

• Temperature
• Sun exposure
• Wind
• Surface type
• Cleaning solution
• Water availability

So rather than choosing a specific month, it is better to choose a suitable weather window.

Exterior Cleaning in Autumn

September to November

Autumn is particularly important for maintenance because falling leaves and organic debris can quickly accumulate around your property.

One of the most important jobs during this period is gutter cleaning.

Leaves, twigs and other debris can block gutters and prevent rainwater from draining correctly.

7

Why Should You Clean Gutters in Autumn?

Blocked gutters can contribute to:

• Overflowing water
• Damp problems
• Water damage
• Staining
• Damage around the roofline
• Problems with drainage

Cleaning gutters before or during autumn leaf fall can help keep rainwater flowing correctly.

For many properties, spring and autumn are useful times to schedule gutter inspections and cleaning, although heavily wooded properties may need more frequent attention.

Exterior Cleaning in Winter

December to February

Winter is generally not the first choice for large-scale exterior cleaning in London.

Cold temperatures, rain, frost and shorter daylight hours can make outdoor cleaning more difficult.

However, winter does not mean exterior maintenance should stop completely.

You can still:

• Inspect gutters
• Check drainage
• Identify moss growth
• Inspect exterior walls
• Look for staining
• Plan spring cleaning
• Deal with urgent maintenance problems

If an outdoor surface is dangerously slippery or a blocked gutter is causing water problems, waiting until spring may not be appropriate.

Best Time to Clean Your Driveway

For most London homeowners, spring and summer are excellent times to clean a driveway.

A driveway can accumulate:

• Dirt
• Moss
• Algae
• Weeds
• Oil stains
• Mud
• Tyre marks

Spring cleaning can make the driveway look significantly better after winter.

Summer cleaning can also prepare the property for visitors and outdoor events.

How often should you clean a driveway?

There is no fixed schedule.

A driveway may need cleaning more frequently if it is:

• Shaded
• Surrounded by trees
• Frequently exposed to moisture
• Prone to moss
• Heavily used

Best Time to Clean a Patio

Spring is usually an excellent time to clean a patio.

After months of wet and cold weather, patios can develop green algae, moss and black staining.

Cleaning before summer allows homeowners to enjoy a cleaner outdoor space throughout the warmer months.

7

Best Time to Clean Your Roof

Roof cleaning requires more care than driveway or patio cleaning.

The best time depends on:

• Roof material
• Moss growth
• Weather
• Access
• Cleaning method

Spring and early autumn can be suitable periods for roof maintenance, but roof cleaning should always be approached carefully.

Pressure washing is not suitable for every roof.

Some roofing materials can be damaged by excessive pressure, so the appropriate cleaning method should be selected based on the roof.

Best Time to Clean Gutters

For many homes, autumn and spring are the key periods for gutter cleaning.

Autumn is important because falling leaves can block gutters, while spring cleaning can remove debris accumulated during winter.

If your property is surrounded by mature trees, you may need to check your gutters more frequently.

Best Time to Clean Exterior Walls

Spring and summer are generally convenient periods for exterior wall cleaning.

Exterior walls can become stained by:

• Rain
• Pollution
• Dust
• Algae
• Moss
• Organic growth

The appropriate cleaning method depends on the material.

Brick, render, stone and painted surfaces should not necessarily be treated in exactly the same way.

Does Rain Affect Exterior Cleaning?

Yes.

Rain can affect both the cleaning process and the drying time.

Light rain does not necessarily prevent every type of exterior cleaning, but heavy rainfall can make certain jobs impractical.

Professional cleaners should consider:

• Rain forecast
• Wind
• Temperature
• Surface moisture
• Drying time
• Cleaning products

This is another reason why professional cleaning companies may reschedule a job when weather conditions are unsuitable.

How London’s Weather Affects Exterior Cleaning

London’s weather can be unpredictable throughout the year.

Rain, humidity, shade and organic debris can create ideal conditions for moss and algae growth on outdoor surfaces.

This means homeowners shouldn’t think about exterior cleaning only as a once-a-year cosmetic job.

Regular inspection can help identify problems before they become harder or more expensive to deal with.

Seasonal Exterior Cleaning Checklist

Use this simple checklist to keep your property maintained throughout the year.

🌱 Spring

☐ Clean driveway
☐ Clean patio
☐ Inspect roof
☐ Clean gutters
☐ Clean exterior walls
☐ Clean windows
☐ Remove moss and algae

☀️ Summer

☐ Pressure wash outdoor surfaces
☐ Clean decking
☐ Clean patio
☐ Maintain driveway
☐ Clean exterior walls
☐ Remove stubborn stains

🍂 Autumn

☐ Clean gutters
☐ Remove leaves
☐ Check drainage
☐ Inspect roof
☐ Check for moss
☐ Clean outdoor paths

❄️ Winter

☐ Inspect gutters
☐ Check drainage
☐ Look for water damage
☐ Monitor moss growth
☐ Plan spring cleaning

Should You Book Exterior Cleaning in Advance?

Yes, especially during spring and summer.

These are popular periods for exterior cleaning, so professional cleaning companies may have more bookings.

If you are planning:

• A house sale
• A garden party
• Outdoor events
• Property photography
• A renovation
• General spring maintenance

it’s worth arranging the cleaning in advance.

Professional Exterior Cleaning vs DIY

You don’t necessarily need professional help for every small cleaning task.

However, professional exterior cleaning can be useful when:

• The area is large
• Dirt is heavily embedded
• Moss is widespread
• The surface is delicate
• You don’t have suitable equipment
• You are concerned about damaging the surface
• The property is difficult to access

A professional cleaner can assess the surface and select an appropriate cleaning method.

Frequently Asked Questions

What is the best month for exterior cleaning?

For general exterior cleaning, spring is often one of the best periods, particularly March to May. However, the ideal timing depends on the surface and weather.

What is the best time to pressure wash a driveway?

Spring and summer are generally convenient periods for driveway pressure washing, provided weather and surface conditions are suitable.

Should I pressure wash before or after winter?

Cleaning before winter can remove existing dirt and organic growth, while cleaning after winter can remove the buildup caused by wet weather.

When is the best time to clean gutters?

Autumn and spring are particularly important times to inspect and clean gutters because leaves and winter debris can cause blockages.

Can you pressure wash in winter?

Some pressure washing jobs can be carried out in winter, but cold temperatures, rain and frost can make outdoor cleaning more difficult. The weather and surface conditions should be assessed before starting.

How often should I clean the exterior of my house?

There is no universal schedule. Many properties benefit from regular inspection and cleaning when visible dirt, algae, moss or staining begins to accumulate.

Final Thoughts

There isn’t one perfect day or month for every exterior cleaning service.

For most London homes:

Spring → Best for general exterior cleaning
Summer → Excellent for pressure washing and outdoor surfaces
Autumn → Important for gutter and roof maintenance
Winter → Focus on inspections and essential maintenance

The most important factor is not simply the season but the condition of your property and the weather on the day of cleaning.

If your driveway, patio, gutters, roof or exterior walls are showing signs of moss, algae, dirt or staining, professional cleaning can help restore their appearance and keep your property better maintained.

Need Professional Exterior Cleaning in London?

If your property needs a seasonal refresh, Thames Face Clean can help with professional exterior cleaning services.

Don’t wait until dirt, moss or algae become a bigger problem.

Request a free quote today and find the right cleaning solution for your property.