Roof repairs
Diagnosing the root cause of leaks, slipped slates, failed flashing and storm damage — fixed properly the first time.
Founder & Master Roofer
Meet Michael Casey
Founder of Keystone Roofing & Construction. On Cork roofs since 2000, and on every full re-roof Keystone delivers — because the standard of work is set on site, not on paper.
20+
Years on Cork roofs
500+
Projects completed
€6.5M
AXA public liability cover
20-yr
Workmanship guarantee
Personally signs off every
full roof replacement Keystone delivers in Cork.
Owner-led
Michael personally scopes and signs off every full re-roof.
Local proof
Cork-based roofing contractor founded in 2009.
Insured
AXA public liability cover up to €6.5 million.
Accountable
Written quotes, photo evidence and 20-year workmanship guarantees.
01 — In his own words
A roofer first. A founder second.
Michael's bio is short because his work isn't. Twenty years of Cork weather, period properties, modern estates, problem leaks, and full re-roofs.
I'm Michael Casey, founder of Keystone Roofing & Construction based in Cork. I've been working in roofing and construction for over 20 years, completing hundreds of projects across Cork and surrounding counties.
My main focus is roof repairs and full roof replacements, but my experience goes far beyond just roofing. Over the years, I've built up substantial knowledge in general building and renovations, which allows me to properly understand how a roof integrates with the overall structure of a property. This means I don't just treat surface issues — I identify the root cause and deliver long-term, practical solutions.
I've worked on a wide range of properties, from older homes requiring careful restoration to more modern builds needing upgrades or corrective work. I specialise in slate and tile roofing, insulation improvements, and resolving ongoing issues such as leaks, failed membranes, and poor previous workmanship.
My approach is straightforward — do the job properly, use the right materials, and don't cut corners. I believe in giving honest advice and carrying out work to a standard that lasts, not just a quick fix that creates bigger problems down the line.
Keystone Roofing & Construction is fully insured, and I take pride in maintaining a high level of workmanship and reliability on every project I take on.
02 — Specialisations
What Michael personally takes on.
Hands-on for every full re-roof, complex chimney work and any job where the previous diagnosis has gone wrong. Keystone has trained crews for the rest, but Michael runs the inspection and signs off the scope.
Full roof replacements
Slate, concrete tile and modern systems with breathable membrane, new battens, fresh leadwork and a 20-year guarantee in writing.
Slate & tile roofing
Period property restoration, like-for-like Welsh and Spanish slate work, conservation-area-aware replacements.
Insulation improvements
Rafter-level upgrades during re-roofs and standalone attic upgrades coordinated with SEAI grant timing.
Difficult leaks
Long-standing leaks, failed membranes, multiple-contractor jobs and corrective work where previous repairs created new problems.
General building integration
Roof work that respects how the rest of the building behaves — not just surface fixes that ignore the structure underneath.
03 — Working principles
"Do the job properly. Don't cut corners."
Four principles that decide every quote, every site, every handover.
PRINCIPLE 01
Do the job properly
Use the right materials. Don't cut corners. The cheapest job is rarely the best value over 10–20 years.
PRINCIPLE 02
Identify the root cause
Most leaks aren't where the drip is. Find what's actually failing — fix that, not just the symptom.
PRINCIPLE 03
Honest advice
If repair makes more sense than replacement, we say so. If a problem is going to come back, we explain why.
PRINCIPLE 04
Standards that last
Every project is built to be sound 15–20 years from now, not just to pass a final inspection.
04 — Credentials
Registered, insured, accountable.
Keystone is a fully registered Cork business with €6.5M public liability cover and a 20-year written workmanship guarantee on every project.
Founder, Keystone Roofing & Construction (since 2009)
Companies Registration Office Business No. 752205
AXA Tradesman Insurance — Policy 12/28/150946921
€6.5 million public liability cover
Tax-compliant — Registration No. 802798, VAT registered
Operating across Cork City, County Cork and Tipperary
05 — Articles by Michael
Cork roofing guides written from on-site experience.
Practical, Cork-specific guides on roofing costs, diagnosis and what to expect — written by Michael for homeowners who want a real answer, not a sales pitch.
Maintenance
Attic Condensation in Cork: Causes & Fixes
Water dripping in your attic on cold dry mornings? That's condensation, not a leak. Here's how to tell them apart and fix the ventilation for good.
Read article
Costs & Pricing
Fascia & Soffit Replacement Cost Cork 2026
What UPVC fascia and soffit replacement really costs in Cork in 2026 — typical ex-VAT ranges by property type, timber vs UPVC, and the signs your eaves are rotting.
Read article
Maintenance
How Long Does a Roof Last in Ireland?
Typical roof lifespans in Ireland's wet, windy climate — from 80–100+ year natural slate to 10–20 year felt flat roofs — plus what shortens a roof's life and how to know when to replace.
Read article06 — Talk to Michael
Free roof inspection. Fixed-price quote. No pressure.
Every Keystone quote starts with Michael personally on site (full re-roofs) or a senior Keystone inspector (repairs and smaller work). You get a written quote in 24–48 hours — and we explain what's actually wrong, not what's most expensive to fix.