The GAF Homecare Blog

Exterior care tips & local guides for South London homes.

Practical advice on gutters, lawns, windows, roofs and driveways — written for the weather, trees and housing stock we actually deal with around here.

In This Blog

How Often Should You Clean Your Gutters in South London?

Most guides give a generic answer — twice a year — without accounting for what actually clogs a gutter in this part of London. If your street has mature plane trees, sycamores, or you're near one of the borough's parks, that generic advice is probably too conservative.

As a rule of thumb: properties under or near heavy tree cover need a clear at least three times a year — once in late spring after blossom and seed drop, once in early autumn before leaf fall really gets going, and once in late autumn once the trees are bare. Properties with little overhead canopy can usually get away with twice a year, spring and autumn.

The bigger issue isn't frequency so much as timing. Clearing gutters right before a storm does you no good if they've already been blocked for a month — by then, water has likely already found its way under roof tiles or down an exterior wall. The point of a schedule is catching blockages before they cause damage, not after.

If you're not sure where your property sits on that spectrum, that's exactly what a quick site look is for — we can tell you in a few minutes, not months of guessing.

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Pressure Washing vs Soft Washing: Which Does Your Driveway Need?

These two terms get used interchangeably, but they're genuinely different processes, and using the wrong one can cost you more than it saves. Pressure washing uses high-pressure water alone to blast away dirt, moss and staining — it's fast and effective, but on the wrong surface it can etch stone, strip mortar joints, or force water under paving.

Soft washing uses much lower pressure combined with a cleaning solution that breaks down grime, algae and moss at a chemical level rather than physically blasting it off. It's the safer choice for render, painted brick, roof tiles, and older or more delicate paving.

As a general guide: concrete driveways, natural stone patios and most block paving handle pressure washing well. Render, painted surfaces, roof tiles and anything with visible wear or loose pointing are better suited to soft washing, or a lower-pressure approach specifically.

The honest answer is that it depends on the surface, its age, and what's actually causing the staining — which is why we assess this on site rather than quoting blind over the phone.

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5 Signs Your Roof Needs Cleaning Before It Needs Repair

Roof cleaning tends to get put off — it's out of sight, and unlike a blocked gutter, there's no obvious moment where it suddenly becomes urgent. But by the time damage is visible from the ground, moss and grime have usually been doing quiet damage for a while. A few things worth checking from your garden or the street:

1. Green or black streaking on north-facing slopes — the side that gets least sun holds moisture longest, so it's usually the first place algae takes hold.
2. Moss clumps along ridge lines or valleys — these trap water against the tile long after rain has stopped, which is exactly what accelerates tile degradation.
3. Granules collecting in your gutters — a sign the roof surface itself is starting to wear, not just sitting dirty.
4. Damp patches on ceilings below roof valleys — often the first indoor sign that moss has been holding water against the roof for months.
5. Visible sagging in gutter lines — usually caused by water weight from a roof that's been shedding debris faster than it's been cleared.

Catching any of these early is the difference between a clean and a much larger roofing bill. If you've spotted more than one of these, it's worth getting it looked at.

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A Seasonal Lawn Care Calendar for South London Gardens

London's clay-heavy soil and relatively mild, wet winters mean a lawn care calendar built for the rest of the UK doesn't always translate well here. This is roughly how we plan a season for typical South London gardens:

Spring (March–May): first cut once growth restarts, usually mid-to-late March. This is also the best window for edging and clearing winter debris before growth picks up pace.
Early summer (June): mowing frequency increases; this is when lawns are growing fastest and skipped visits show the most.
Late summer (July–August): raise the cutting height slightly during dry spells — clay soil holds heat, and a shorter cut stresses grass more than people expect during a hot, dry patch.
Autumn (September–November): growth slows but doesn't stop; this is the best window for a tidy-up before leaf fall makes everything harder to manage. It's also, not coincidentally, the same window gutters need attention.
Winter (December–February): minimal mowing, but this is when hedge structure and border tidying matter most, since there's little else competing for attention in the garden.

The point of a fixed schedule isn't really convenience — it's that a lawn cut on a consistent interval genuinely looks and grows differently than one cut reactively whenever someone gets round to it.

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Why Streak-Free Windows Do More Than Look Good

It's easy to file window cleaning under pure aesthetics, but there's a practical case for it that's easy to overlook. Clean windows let noticeably more natural light into a room — grime and hard-water spotting can cut light transmission enough that rooms feel dimmer than they should, especially through autumn and winter when every bit of daylight matters.

There's also a maintenance angle: mineral deposits and grime left on glass and frames long-term can etch into the surface or degrade seals and putty around older frames, turning a cleaning job into a repair job if it's left too long.

And for anyone thinking about selling or renting a property, first impressions really are formed from the street — an estate agent's photos of a home with clean, glare-free windows simply look better, and it's one of the cheapest, fastest improvements available before a viewing.

It's a small, regular task that quietly protects a bigger investment — which is exactly the kind of thing a fixed schedule handles better than a one-off reminder ever will.

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Preparing Your South London Garden and Exterior for Autumn and Winter

The run-up to autumn is genuinely the most useful maintenance window of the year — everything done now prevents a problem that would otherwise surface in the middle of winter, when it's harder and more expensive to fix. A few priorities, roughly in order:

Gutters first. Clear them before leaf fall properly starts, not after — a gutter that's already half-blocked when the leaves come down will be fully blocked within weeks.
Roof check. Loose tiles and moss buildup are far easier to deal with in dry September weather than in the middle of a wet November.
Pressure wash paths and driveways. Algae and moss get their best growing conditions right as the weather turns damp — cleaning beforehand means less slip risk through the wettest months.
Final lawn tidy. One last proper cut and edge before growth slows keeps the garden looking kept right through to spring, rather than shaggy by November.
Window clean. Fewer daylight hours make clean, glare-free windows matter more, not less, over winter.

None of this is complicated, but the timing matters more than the tasks themselves — which is really the whole argument for booking it in rather than getting to it "eventually."

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One-Off Clean or Maintenance Plan: Which Actually Saves You Money?

This depends entirely on what "the job" actually is. A single one-off visit — say, a gutter clear before you sell a property, or a pressure wash before a one-time event — is genuinely the cheaper option in isolation. There's no argument for locking into a plan for something that only needs doing once.

Where a plan earns its cost back is in what one-off visits don't cover: catching small problems before they become expensive ones. A gutter cleared on a fixed schedule rarely causes damp. A gutter that's "gotten round to eventually" much more often does — and a damp repair costs meaningfully more than a year of gutter clearing would have.

The other factor people underestimate is admin. Booking a one-off job means remembering it needs doing, getting a quote, and finding a slot — three points where it's easy for maintenance to just... not happen. A plan removes all three, which is really the actual value being paid for, not just the cleaning itself.

Our honest advice: if you need something done once, book a one-off visit. If you've been meaning to sort the same thing "eventually" more than once, that's usually the sign a plan is the better fit.

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The Hidden Cost of Neglected Gutters: Damp, Pests and Structural Damage

A blocked gutter looks like a minor, purely cosmetic problem — until it isn't. Water that can't drain properly doesn't just sit there; it finds somewhere else to go, and that somewhere is almost always somewhere more expensive to fix.

Damp. Overflowing gutters send water down exterior walls rather than away from them, which is one of the most common causes of rising and penetrating damp in older London housing stock — a repair that runs into the thousands, not the hundreds.
Pests. Standing water and rotting leaf debris in a blocked gutter is close to ideal breeding ground for mosquitoes, and the organic buildup attracts rodents looking for nesting material near a roofline.
Structural wear. The weight of trapped water and debris — especially after a heavy rain — puts real strain on gutter brackets and fascia boards, which is how a blocked gutter eventually becomes a gutter that's pulling away from the roof entirely.
Foundation risk. On properties without deep guttering diversion, water pooling repeatedly at the base of a wall can, over years, affect the soil around foundations — a slow problem, but a genuinely serious one.

None of this happens after one missed clean. It happens after several, which is exactly why "I'll get to it eventually" is the most expensive sentence in property maintenance.

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