Moss, lichen and algae stripped off your roof without cracking a single tile. We use soft wash roof cleaning — a low-pressure treatment that kills growth at the root — so your roof is cleared properly and stays clear for years, not months.
Free, no-obligation quotes · Fully insured · Safe access equipment on every job
Send a photo of your roof on WhatsApp and we'll come back with an honest price — no call-out fee, no pressure to book.
Get a Free Quote →4Seasons is a local, fully insured roof cleaning company working across Galway city and county. Our roof washing services cover tile, slate, concrete and fibre-cement roofs — and every job starts with a survey, because the right method depends entirely on what your roof is made of and what condition it's in.
Galway's damp Atlantic climate is close to perfect for moss. North-facing slopes, roofs under trees and anything sheltered from wind will carry a thick green mat within a few winters. Roof cleaning and moss removal isn't cosmetic once it gets to that point — the moss holds water against the tile, blocks the gutters and lifts the laps.
Most Galway roofs should never see a pressure lance. High-pressure roof washing strips the protective granules off concrete tiles, forces water up under the laps and can crack older slate outright — damage that costs far more to fix than the clean saved. That's why we lead with low pressure roof cleaning on almost every job.
Soft washing takes longer to show its full result — the dead moss weathers off over the following weeks — but it clears the roof to the root and leaves the tile surface exactly as it found it. On hard-wearing tile where a heavier clean genuinely is appropriate, we'll say so at the survey and price both options.
This is the single most important decision on a roof, and getting it wrong is expensive. A roof cleaned at the wrong pressure can look great for a fortnight and leak by winter.
Moss looks like a cosmetic problem until the first real winter storm. Here's what it's doing up there in the meantime.
Moss acts like a sponge, holding rainwater against the tile instead of letting it run off. Freeze-thaw cycles then crack the tile face from the inside out.
Every storm washes moss debris into the gutters. Blocked downpipes overflow down the wall, and that's how you end up with damp render and stained brickwork.
Moss growing under the tile overlap forces the laps apart. Water then tracks in where it was never meant to go — usually noticed only when a ceiling stains.
The most requested roof cleaning and moss removal jobs across Galway — all backed by a free, no-obligation survey and quote.
Heavy moss mats are lifted by hand where needed, then the roof is treated so what's left dies off at the root. Proper roof moss cleaning, not a quick surface rinse.
Low pressure roof cleaning using a biodegradable treatment rather than force. It's the safest option for almost every Galway roof, and the results last far longer.
Concrete and clay tile roofs clean up dramatically. Where the tile is sound, controlled roof pressure cleaning is an option — but we survey first and never take the risk blind.
A combined roof and house wash cleans the roof and the render, walls or pebble-dash in one visit — the cheapest way to reset the whole exterior in a single day.
Roof cleaning without clearing the gutters afterwards is half a job. Every downpipe is checked and flushed so the debris we've loosened doesn't end up blocking them.
After the roof power washing or soft wash is done, a protective treatment slows regrowth considerably — and a check-up every few years keeps the moss from ever returning.
A handful of results from real jobs — get yours looking like this with a free quote.
No pushy upsells, no vague pricing — just a fully insured local team that does the job right.
Public liability cover on every roof cleaning job, and safe access equipment as standard.
We check tile condition and flag anything cracked or slipped before we start, not after.
The number we quote is the number you pay. No call-out fees, no surprise extras.
We lead with low pressure because it protects your roof — and gives longer-lasting results.
Tell us the roof type and rough size, or just send a photo from the garden. We'll come back with clear, honest pricing for your roof cleaning and moss removal.
One crew, safe access, and a roof that's clear to the root — not just to the eye.
Send a few details online or a photo on WhatsApp and we'll arrange a survey that suits you.
We check the tile type and condition, decide on soft wash or low pressure, and price it in writing.
Planting and paintwork are covered, heavy moss is removed, then the roof is treated at the root.
Gutters and downpipes are flushed of debris and the site is left as clean as we found it.
If you've been searching for roof moss removal or roof cleaning near you in Galway, you're already in our patch. We cover the city and the surrounding towns and villages, usually within a few days of your enquiry.
Autumn and early spring are the best windows for roof moss cleaning — clear it before the winter storms and you avoid the blocked gutters that come with them.
" Excellent roof cleaning service. Our roof was covered in moss and looked very tired, but after the clean it looks years newer. The team was professional, careful, and left the property spotless. Very pleased with the results.."
"Delighted with the roof cleaning work. The crew arrived on time, explained everything clearly, and did a fantastic job removing moss and dirt from the tiles. The roof looks great again and the whole house looks much better because of it.."
"Highly recommend this roof cleaning service. The team worked safely and efficiently, and the difference is incredible. We had years of moss buildup and now the roof looks almost new. Great communication, fair pricing, and excellent workmanship.."
Not always. High-pressure roof washing can strip the protective granules off concrete tiles, crack older slate and force water up under the laps. For most Galway roofs we recommend soft wash roof cleaning instead — a low-pressure treatment that removes moss and algae without any of that risk. We'll tell you at the survey which your roof can take.
It's roof cleaning without pressure washing. A biodegradable treatment is applied at low pressure and kills moss, lichen and algae at the root rather than blasting it off the surface. The roof continues to clear over the following weeks as the dead growth weathers away, and it stays clear far longer than a pressure-washed roof does.
Roof size, pitch, access and how deep the moss is all change the number, which is why we quote after a free survey rather than using a flat rate. A straightforward bungalow costs considerably less than a steep two-storey with restricted access. Every quote is fixed and given in writing before work starts.
Most domestic roofs are done in a day. With a soft wash, the visible result keeps improving for several weeks afterwards as the dead moss weathers off — that's normal and it's the treatment working, not a job left unfinished.
Eventually, in Galway's climate — but slowly. A root-level treatment plus an optional protective biocide keeps most roofs clear for several years. Overhanging trees and permanent shade will shorten that, so we'll give you a realistic expectation for your specific roof.
Yes, and it isn't optional on our jobs. Cleaning a roof loosens debris that goes straight into the gutters, so we clear and flush the downpipes as part of the work rather than leaving you with a blockage.
We can. A combined roof and house wash resets the whole exterior in one visit and works out cheaper than booking the two separately, since it's one set-up and one crew.
No, as long as we have access around the property and an outside tap. We'll send photos on WhatsApp when the job is finished and take payment afterwards.
Fully insured, locally trusted and 5-star rated across Galway. Get your free, no-obligation roof cleaning and moss removal quote today.