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Hawkes Roofing
Victorian red-brick house with a Welsh slate roof at golden hour

Roof care

Guides

Straight answers on gutters, roof moss and roof care, from roofers based in St Albans. Every guide lists its sources, and we'll always tell you when a job can wait.

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Gutters and downpipes

Leaking joints and sagging gutters: clean, repair or replace?

Why gutters leak at the joints and sag, and how to tell a clean from a repair or a replacement.

Last reviewed 26 October 2026

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Plants, weeds or moss growing in your gutter? What it means and what to do

What plants growing in a gutter mean, why buddleia needs removing early, and how to clear it.

Last reviewed 26 October 2026

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Can I clean my own gutters? How to do it safely, and when to call someone

Which gutters are a DIY job, the ladder rules that matter, and when to call someone in.

Last reviewed 26 October 2026

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How to check your gutters without a ladder

Six ways to tell if your gutters are blocked, from the ground, a window or a phone on a pole.

Last reviewed 26 October 2026

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Blocked downpipe: the signs, the causes, and how it's cleared

The signs of a blocked downpipe, where blockages hide, and why cracks at the back go unseen.

Last reviewed 26 October 2026

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Damp patch on the wall below your gutter? What it usually means

Why damp below a gutter often starts at the gutter or downpipe, and what to check first.

Last reviewed 26 October 2026

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Why is my gutter overflowing? The six usual causes, and how to tell which

The six reasons a gutter overflows, and how to tell which one you've got.

Last reviewed 26 October 2026

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When to clear your gutters: a tree-by-tree guide for the Chilterns

When to clear gutters under oak, beech, pine and lime, with timings for Amersham, Beaconsfield and the Chalfonts.

Last reviewed 26 October 2026

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Roof moss and roof cleaning

Grit in your gutters from the roof tiles: what it means

Where grit in your gutters comes from, when it's normal weathering, and when to get the ridge checked.

Last reviewed 26 October 2026

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The best time of year to clean a roof

When to book roof moss removal, and how nesting season and the weather affect the timing.

Last reviewed 26 October 2026

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How to stop moss coming back, and how long a roof clean lasts

Why moss grows back, what slows it down, and how long a roof clean really lasts.

Last reviewed 26 October 2026

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Moss on the roof when you're buying or selling a house

What a survey comment about roof moss means, and what to do when buying or selling.

Last reviewed 26 October 2026

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Moss, lichen or algae? What's growing on your roof, and whether it matters

How to tell moss from lichen and algae on a roof, and which ones are worth dealing with.

Last reviewed 26 October 2026

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Roof moss killers compared: Wet & Forget, Jeyes Fluid, bleach and vinegar

Wet & Forget, Jeyes Fluid, bleach and vinegar compared: what the labels say and what they harm.

Last reviewed 26 October 2026

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How to remove moss from a roof yourself (and when not to)

Which roofs you can de-moss yourself, how to do it safely, and when it's a job for a roofer.

Last reviewed 26 October 2026

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Is roof cleaning worth it? When it's money well spent, and when it isn't

When roof cleaning is money well spent, when to leave it, and what a good clean includes.

Last reviewed 26 October 2026

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Why are birds pulling moss off my roof?

Why birds pull moss off roofs, where it ends up, and how to deal with it without disturbing nests.

Last reviewed 26 October 2026

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Does roof cleaning damage tiles? Jet washing, scraping and treatments compared

Jet washing, scraping, brushing and treatments compared, and the questions to ask a roof cleaner.

Last reviewed 26 October 2026

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Roof coatings and roof painting: are they worth it?

What the roofing industry and Trading Standards say about painting and coating roof tiles.

Last reviewed 26 October 2026

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Cleaning moss off a listed or conservation-area roof: what's allowed

What the law says about cleaning a listed roof, what to avoid, and the questions to ask any roofer.

Last reviewed 26 October 2026

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Is moss on your roof a problem? When to leave it and when to act

How to tell light moss from heavy, when to leave it, and why a roof should never be pressure washed.

Last reviewed 26 October 2026

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Choosing a roofer

Free · Photographed · No pressure

Find out what your roof actually needs.

Get a quote for your roofing work. The survey is free. If we can advise from your photos, we’ll tell you; if we need to look, we photograph every part we can safely reach.

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