- 20-Year Work Guarantee
- 10-Years Home Security Promise
- 365 Emergency Assist Service
- Refer a Friend Reward
- Book a Service Appointment
It only takes 30 seconds – no pressure, no obligation.
- Privacy Protected we will only use your details for the purpose of quotation
Building & Renovation Contractors Serving Cork City & County
Our Building & Renovation Services
Whether you need a wall plastered, a garden fenced, a damp problem sorted once and for all, or a full renovation carried out — Keystone Roofing has the tradesmen and the track record to get it done right. All building works are completed to Irish Building Regulations standards, with full insurance cover on every job.
Plastering Cork
Internal and external plastering for new builds and renovations. Sand & cement, skim coat, and smooth finish plastering across Cork.
Damp Proofing Cork
Damp treatment, injection damp proofing, and tanking solutions for Cork homes. We identify the source and fix it permanently.
Paving Cork
Driveway paving, patio paving, and block paving installation. Domestic and commercial paving contractors across Cork City and County.
Fencing Cork
Garden fencing, timber fencing, metal railings, and boundary fencing supplied and fitted across Cork.
Drainage Systems Cork
Drain installation, French drains, soakaways, and full drainage solutions for residential and commercial properties in Cork.
Retaining Walls Cork
Retaining wall construction in stone, concrete, and block. Structural and aesthetic retaining walls across Cork.
Dry Lining Cork
Dot-and-dab dry lining, insulated dry lining, and partition walls installed across Cork City and County.
Steam Cleaning Cork
Professional steam cleaning for patios, driveways, and external surfaces. Effective, eco-friendly cleaning across Cork.
Why Choose Keystone for Your Renovation?
We’re a Cork company — always have been. That means no subcontracting to unknown tradesmen, no long wait times, and no confusion about who to call if something needs attention after the job. When you hire Keystone Roofing for building and renovation work in Cork, you’re getting our team on your site.
Our Simple 4-Step Process
Get Your Free Quote
We’ll visit within 24 hours. Honest pricing, no surprises – just straightforward recommendations based on what your roof actually needs.
We Plan & Schedule
We work around your life. Materials ordered from trusted suppliers, site prepped to minimise disruption. Simple as that.
Expert Installation
Certified team, strict safety standards, your property protected throughout. We do it right.
Quality Inspection
Thorough inspection before we leave. Site cleaned, work documented, 20-year warranty in hand. Done properly.
How We Approach Every Building Job in Cork
Every job starts with a proper site visit. No quoting over the phone for work we haven’t seen — that’s how corners get cut and clients end up disappointed. We assess the scope, explain exactly what’s involved, and give you a clear written quote with no surprises.
Plastering, Dry Lining & Damp Proofing
Moisture is the root cause behind most interior wall failures in Cork homes — particularly in older terraced and semi-detached properties. We identify the source before any remedial work begins. Damp proofing treatment goes in first; plastering and dry lining follow once the wall is properly dry. That sequencing matters. Skipping it, or letting a plasterer work over a damp wall, means you’ll be back dealing with the same problem in 18 months. We don’t operate that way.
Paving, Fencing & Retaining Walls
Outdoor work requires proper groundwork — and that’s where a lot of tradesmen cut corners. Our paving teams prepare sub-bases to spec, our drainage work complies with EPA guidelines for Cork, and our fencing goes in correctly the first time. We also handle steam cleaning before any paving or surfacing project to ensure proper adhesion and a clean finish.
Paving, Fencing & Retaining Walls
Outdoor work requires proper groundwork — and that’s where a lot of tradesmen cut corners. Our paving teams prepare sub-bases to spec, our drainage work complies with EPA guidelines for Cork, and our fencing goes in correctly the first time. We also handle steam cleaning before any paving or surfacing project to ensure proper adhesion and a clean finish.
Drainage Systems & Steam Cleaning
Drainage problems tend to get ignored until they cause serious damage. We design and install drainage systems that comply with EPA guidelines for Cork, whether that’s surface water management, soakaway installation, or redirecting existing systems that aren’t working. Steam cleaning is typically the starting point for any paving or surfacing project — it strips back contamination and ensures proper adhesion. We don’t lay anything over a dirty or compromised surface.
What Cork Homeowners Say About Us
Don’t just take our word for it. Read what Cork homeowners say about our roofing services. From emergency repairs to complete roof replacements, we’re proud of the trust we’ve built across Cork City, Douglas, Ballincollig, and surrounding areas.
Keystone Roofing Ltd handled a slate roof repair and new lead flashing on our terraced house in Douglas, Cork. They explained the issue clearly, fixed a persistent leak, and left the place tidy. Highly Recomended!
Amelia Nolan
The team did an immaculate job doing a whole new roof. Very easy to communicate, friendly, professional and hard working. Definitely would recommend. Thanks for a job well done!
Konstantin Hochhaus
Keystone Roofing repaired a leak in my roof recently Michael called to inspect the damage and the crew arrived the next morning They did a fantastic job and Im extremely happy with the result A great company to deal with and I would highly recommend them Thanks Michael and crew E Hayes
Esther Hayes
Work carried out to a high standard, here when they said they would be, worked until darkness somedays. Bigger job than expected, worked up until Christmas Eve to make sure work was completed.
Adrian Hickey
I am very happy with the work completed by Michael and the lads at Keystone. The team were professional, had great customer service, were honest and overall great to deal with. I would definitely hire them again.
Michelle hurley
Called keystone on Christmas Eve to repair my roof guys had it fixed in a hour at fair price happy to recommend
K Ka
Questions About Our Building & Renovation Services in Cork
Do I need planning permission for building renovation work in Cork?
Most internal renovation work — plastering, dry lining, damp proofing — doesn't require planning permission. External work like paving, retaining walls, and fencing also typically falls within exempted development thresholds. We'll advise you during the site visit if anything you're planning does require permission.
How long does renovation work typically take in Cork?
It depends heavily on the scope. A plaster re-skim might take a day or two. A full damp proofing treatment with re-plastering of an affected room typically takes 3–5 days. Larger outdoor projects like paving a driveway or installing drainage systems can take 1–2 weeks. We'll give you a realistic timeframe in the quote.
Are you able to handle multiple trades on a single renovation project?
Yes. Keystone Roofing has tradesmen across all the services listed on this page - plastering, damp proofing, paving, fencing, drainage, and more. If your project involves multiple trades, we coordinate everything so you're not managing multiple contractors yourself.
Do you offer free quotes for building and renovation work in Cork?
Yes, always. All our quotes are free, given after an on-site visit, and written up clearly so you know exactly what you're getting and what it costs. Call us on 087 223 4228 or use the contact form to arrange a visit.
Can you treat rising damp and then re-plaster the same room?
Yes - and this is actually the right way to approach damp problems. Treating damp and then plastering straight away is pointless; the moisture needs time to clear. We time the works properly, so your new plaster goes on over a properly treated, dry wall. No shortcuts.
Building & Renovation Services Across Cork - Areas We Cover
Keystone Roofing & Construction provides professional building and renovation services throughout Cork — including plastering, damp proofing, paving, fencing, drainage, and dry lining. Our 17-year local presence means we understand Cork properties and respond quickly when you need us.
Don’t put off building work that only gets worse with time — damp, drainage issues, and structural problems are always cheaper to fix early. Call Keystone today for a free on-site assessment anywhere across Cork.