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Roof Cleaning Specialists

Roof Cleaning
Glenageary

Moss removal, soft washing and biocide treatment across Glenageary. Extends roof life and restores appearance.

Free Roof
Inspection
No Call-Out
Charge
Fully
Insured
Emergency
Repairs
25+ Years
Experience
Fully InsuredPublic & Employer
SafePassCertified Team
24/7Emergency Line
★★★★★ 5 Star Reviews on Google

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25+Years Experience
1,000+Roofs Repaired
5 ★5 Star Reviews
100%Customer Satisfaction
LocalRoofers You Can Trust

Glenageary homeowners trust Peak Roofing for roof cleaning. Moss, lichen and algae growth on tiles and slates traps moisture against the roof surface, accelerating mortar erosion and eventually the tiles themselves. Our roof cleaning specialists use low-pressure soft washing combined with a professional biocide treatment throughout Glenageary — far safer and more effective than high-pressure jet washing, which cracks tiles, displaces ridge mortar and forces water under the overlap. A professionally cleaned and biocide-treated roof in Glenageary stays clear for significantly longer and reduces the frost damage risk that comes with moisture trapped in moss growth. Free assessment, written quote, no call-out charge.

Glenageary is a quiet residential suburb between Dún Laoghaire and Dalkey with excellent DART connections, featuring a mix of Victorian and Edwardian semi-detached homes, 1930s to 1960s detached houses, and bungalows on well-maintained roads. Properties in Glenageary are predominantly Victorian and Edwardian semi-detached homes, 1930s to 1960s detached houses and bungalows, and some period detached properties on larger plots along the upper roads. Common roof issues we address here include natural slate deterioration on older period homes, chimney repointing on Victorian and Edwardian properties, flat roofs on rear extensions, and guttering blockages from mature garden and street trees, making professional roofing maintenance essential for Glenageary properties. Our roofers understand the construction methods and typical materials used in Glenageary — every inspection is free and every job begins with a written quote.

Areas we cover in Glenageary: Glenageary Road Upper and Lower, Albert Road, Corrig Road, Silchester Road, Pottery Road, Windsor Park and Summerfield Grove

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Our Roofing Services

Recent Roofing Work in Glenageary

Before
After
Case Study
Slate Repair – Silchester Road
What we did
Replaced 18 slipped natural slates and repointed all ridge tiles on 1930s semi-detached property
Duration1 Day
Typical Cost€550 – €800
Photos coming soon
Case Study
Chimney Repoint – Glenageary Road Upper
What we did
Full repoint of Edwardian chimney stack with new lead stepped flashing and stainless cowl
Duration1 Day
Typical Cost€800 – €1,200
Photos coming soon
Case Study
Extension Flat Roof – Pottery Road
What we did
Replaced deteriorated felt flat roof with new EPDM rubber membrane on single-storey rear extension
Duration1 Day
Typical Cost€4,500 – €6,500

Why Glenageary Homeowners
Choose Peak Roofing

  • Local, family run roofing company
  • Honest advice — no unnecessary replacements
  • Detailed roof inspection reports with photos
  • High quality materials & expert workmanship
  • Clean, tidy & respectful on every job
  • Fully insured for your peace of mind
  • Up to 25-year guarantee available
5 Star Reviews
"Excellent work from start to finish. I had other roofers quote and all felt the plywood was still good. James was 100% correct it had to go and be replaced. I also really liked that they supplied so many photos and vids to show the quality of the work. Gave me great assurance."
– Nick Walsh

We Provide

  • Free Quotes
  • No Call-Out Charge
  • Written Quotations
  • Work Guaranteed
  • Emergency Callouts

Frequently Asked Questions

From €700 — most properties completed in half a day. Free inspection first, so you know exactly what's involved before agreeing to anything.
Soft washing is the correct method. High-pressure jet washing can crack and dislodge tiles, wash away ridge mortar bedding, and force water under the tile overlap — causing internal damp that may not appear for months. Our soft washing process uses low pressure combined with a professional biocide solution that kills moss, lichen and algae at the root, leaving a clean roof that stays clean for 3–5 years after treatment.
Yes. Moss retains water against the tile surface and mortar joints, accelerating frost damage, mortar erosion and tile cracking. Removing moss and applying a biocide treatment removes that moisture trap and significantly slows future deterioration. For concrete tile roofs in Glenageary, regular cleaning every 4–6 years is a cost-effective maintenance strategy that delays the need for full roof replacement.
A standard semi-detached roof in Glenageary typically takes half a day to a full day depending on pitch, size and the extent of moss growth. Treatment solution is applied after cleaning and continues to work for several months after the visit. There is no need for you to vacate the property and access is via roof ladder — we do not require scaffolding for most residential jobs in Glenageary.
Yes. We frequently combine roof cleaning with repair work — replacing cracked or broken tiles, repointing ridge sections, clearing gutters and downpipes — on the same visit. This is the most cost-effective approach and avoids a second attendance fee. We will identify any repair work needed during our free assessment of your Glenageary property and include it in the same written quote.
In Glenageary, the roofing problems we see most often are natural slate deterioration on older period homes, chimney repointing on Victorian and Edwardian properties, flat roofs on rear extensions, and guttering blockages from mature garden and street trees. A free inspection is the best way to check whether any of these apply to your roof — call 085 782 8222 to arrange one.
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Areas We Cover

Dún Laoghaire Dalkey Glasthule Sandycove Monkstown Killiney
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Need Emergency Roof Repairs?

We're available 24/7 for emergency callouts across Glenageary and the surrounding area. Based just 7km away in Sandyford.

085 782 8222 24/7 Emergency Line
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Get a Bird's-Eye View of Your Roof

Our drone surveys deliver high-resolution footage of every tile, ridge and chimney — no scaffold, no ladders, no disruption. Ideal for insurance claims, pre-purchase inspections and hard-to-access roof sections.

Book a Drone Survey  →
Book Your Free Roof Cleaning Assessment Today Get a free roof inspection and honest advice from your local roofing experts.