Our Slate Roof Repair Process
We begin every slate roof repair with a thorough assessment of your roof’s condition and specific damage points.
Our expert team follows industry-leading repair protocols using professional-grade materials and specialized tools for slate roofing.
We guarantee quality through our rigorous inspection process and back every repair with our 20-year guarantee.
Initial Assessment
A thorough initial assessment forms the foundation of our slate roof repair process at Keystone Roofing Ltd. We begin by conducting an extensive inspection of your entire roof system to identify all existing and potential issues.
Our team of experts examines every slate tile, flashing point, and structural component to create a detailed report of your roof’s condition. During the assessment, we’ll document any damaged or missing slates, check for water damage, and evaluate the integrity of supporting structures.
We use advanced tools and techniques to detect hidden problems that mightn’t be visible from the surface. This careful examination helps us develop the most effective repair strategy for your specific situation.
You can trust our 20 years of experience to provide an honest evaluation of your slate roof’s condition. We’ll explain our findings in clear terms and provide you with a detailed written report.
Our assessment includes a complete cost breakdown with no hidden fees. Contact us at 087 223 4228 to schedule your initial roof assessment and benefit from our expertise in slate roof repairs throughout Cork and Tipperary.
Types of Roof Slates We Repair in Cork
Keystone Roofing repairs all types of roof slates found on Cork properties, from original natural slates to modern alternatives.
Spanish Slate Repairs
Spanish slate is the most common roofing slate in Ireland today due to its availability and competitive pricing. We source matching Spanish slates from trusted suppliers to ensure colour and thickness consistency. Spanish slates typically last 75-100 years with proper maintenance.
Welsh Slate Repairs
Welsh slate is considered the finest roofing slate in the world, with a lifespan exceeding 150 years. Many period properties in Cork feature original Welsh slate. We source reclaimed Welsh slates or premium new Welsh slate from Penrhyn and Ffestiniog quarries for repairs requiring exact heritage matching.
Natural Irish Slate Repairs
Historic Cork properties often feature natural Irish slate from quarries in Killaloe, Valentia Island, or Bangor. While Irish quarries are largely inactive, we maintain contacts with reclaimed slate suppliers to source authentic matches for heritage restoration projects.
Reclaimed & Salvaged Slates
For period properties and conservation areas, we source reclaimed slates that match the age, colour, and character of your existing roof. Reclaimed slates have already proven their durability and provide the authentic appearance that new slates cannot replicate.
Professional Slate Roof Repairs Service Cork
Professional craftsmen at Keystone Roofing Ltd. deliver extensive slate roof repairs using time-tested techniques and modern tools. Our team brings decades of combined experience to every slate roof project we undertake.
We’ll carefully assess your slate roof’s condition and develop a targeted repair plan that addresses all damaged areas. We use specialized tools and authentic slate materials that match your existing roof perfectly.
Our repair process includes replacing broken slates, reinforcing weak spots, and guaranteeing proper water drainage. We’ll check all flashings and confirm they’re properly sealed to prevent future leaks. Each repair meets strict quality standards and includes our 20-year unlimited guarantee.
You can trust our expertise with your slate roof repairs. We’re fully registered and insured, serving homes across Cork and Tipperary with professional reliability.
Our 365 Emergency Assist Service means we’re always available when you need urgent repairs. We take pride in delivering lasting results that protect your home and maintain your roof’s historic character.
Contact us at 087 706 9266 to schedule your slate roof repair service.
Quality Assurance
Throughout our slate roof repair process, Keystone Roofing Ltd. maintains rigorous quality control standards at every stage. We inspect every slate tile thoroughly before installation and use only premium-grade materials that meet strict industry specifications. Our 20-year unlimited guarantee backs every repair job we complete.
Our quality assurance program includes thorough documentation of all work performed. We take detailed photos before, during, and after repairs to guarantee complete transparency.
Our team follows a strict checklist system that covers every aspect of the repair process. Each repair undergoes multiple inspections by our senior technicians.
We’re proud to offer our clients a 10-year home security promise alongside our emergency assistance service. Our advanced tools and techniques help us deliver consistent, high-quality results. You’ll receive detailed reports of all work completed, including recommendations for future maintenance.
We stand behind our workmanship with full insurance coverage and proper registration. Our quality standards have earned us a trusted reputation throughout Cork and Tipperary. Every repair meets or exceeds current building regulations and industry standards.
Common Slate Roof Problems We Fix
Slipped Slates
Slates slip when the copper nails holding them corrode or when the nail holes become enlarged over time. A slipped slate creates an immediate water entry point. We re-fix slipped slates using copper or stainless steel nails and tingles (metal clips) that secure the slate without removing surrounding slates.
Cracked & Broken Slates
Slates crack from impact damage (falling branches, foot traffic), frost damage, or natural delamination as the slate ages. We remove cracked slates using a slate ripper tool and install matching replacements. Single slate replacement typically takes 30-60 minutes.
Ridge & Hip Slate Failures
Ridge slates and hip slates are secured with mortar that deteriorates over decades. Failed ridge mortar allows water penetration and can lead to slates becoming dislodged in high winds. We re-bed ridge slates using a flexible, breathable mortar that accommodates thermal movement.
Nail Sickness (Widespread Nail Failure)
When multiple slates begin slipping across the roof, the likely cause is nail sickness – widespread corrosion of the original iron or steel nails. This indicates the roof may need complete re-slating rather than spot repairs. We provide honest assessments and explain when repair vs replacement is the better investment.
Lead Flashing Failures
Lead flashings around chimneys, valleys, and abutments eventually crack from thermal cycling. Leaks attributed to slates are often actually flashing failures. We inspect all lead work during slate repairs and replace failed flashings using Code 4 or Code 5 lead sheet.
Ridge Slate & Valley Repairs Cork
Ridge slates and valley sections are the most vulnerable points on any slate roof. These areas experience the greatest water flow and are exposed to wind from multiple directions.
Ridge Slate Repairs
Traditional ridge details on slate roofs use angular ridge slates bedded in mortar, or lead roll ridges on more prestigious properties. We re-bed loose ridge slates with flexible mortar that prevents cracking, or install dry ridge systems that eliminate mortar maintenance entirely. For heritage properties, we replicate original lead roll details using traditional techniques.
Valley Repairs
Roof valleys channel water from two roof slopes and are typically lined with lead or zinc. Valley failures cause significant water damage as the volume of water is concentrated in a narrow channel. We repair valleys by installing new Code 5 lead linings with proper step and cover flashings where the lead meets the slates. Valley repairs often reveal deteriorated valley boards (timber underneath) which we replace before installing new lead.
Slate Roof Repair Costs in Cork
Slate roof repair costs depend on the number of slates needing replacement, accessibility of the roof, and the type of slate required.
Typical Slate Repair Costs (2026 Prices)
• Single slate replacement: €80 – €150 (including call-out)
• Multiple slate repairs (5-10 slates): €200 – €500
• Ridge re-bedding (per linear metre): €40 – €60
• Valley replacement: €600 – €1,200
• Chimney flashing replacement: €400 – €800
Full Slate Roof Replacement Costs
• Spanish slate re-roofing: €80 – €120 per m²
• Welsh slate re-roofing: €150 – €250 per m²
• Typical 3-bed semi (80m² roof): €6,400 – €9,600 for Spanish slate
We provide free, fixed-price quotes with no hidden costs. Every quote includes labour, materials, scaffolding, and waste disposal. Call 087 223 4228 for your free assessment.
Heritage & Period Property Slate Repairs Cork
Cork has a wealth of Georgian, Victorian, and Edwardian properties with original slate roofs. These historic roofs require specialist knowledge to repair correctly while maintaining architectural authenticity.
Our Heritage Slate Services Include:
• Sourcing period-appropriate reclaimed slates from specialist suppliers
• Traditional lime mortar pointing for ridge and hip details
• Lead work using traditional bossing techniques
• Conservation area compliance and planning advice
• Documentation for heritage grant applications
Protected Structures & Listed Buildings
If your property is a Protected Structure, you may need Section 57 approval from Cork City or County Council before carrying out roof repairs. We work with conservation officers and can advise on the application process. Many heritage slate repairs qualify for funding through the Built Heritage Investment Scheme or Historic Structures Fund.
Signs Your Slate Roof Needs Professional Repair
Signs that your slate roof needs repairs often become apparent through several key indicators. You might notice missing or cracked slates, water stains on your ceiling, or dampness in your attic space. These issues require immediate attention to prevent further damage to your home’s structure.
At Keystone Roofing Ltd., we recognize the importance of timely slate roof repairs. Our team of experts can identify and address common slate roofing problems that affect homes across Cork. We’ll conduct a thorough inspection to determine the extent of repairs needed.
Watch for these critical warning signs that indicate your slate roof needs professional attention:
- Slipping or fallen slates in your garden or around your property
- Daylight visible through your roof when viewing from inside the attic
- Dark patches or streaks appearing on your interior walls or ceilings
We back our slate roof repairs with our 20-year unlimited guarantee, giving you complete peace of mind.
Our emergency assist service operates 365 days a year, ensuring we’re always available when you need urgent repairs.
Contact us at 087 223 4228 to schedule an inspection of your slate roof.
What to Expect During Your Slate Roof Repair
We prioritize safety and security during every slate roof repair through our thorough approach to protecting your property.
Our experienced team follows these essential safety protocols:
- Full property protection with professional-grade coverings and barriers
- Continuous monitoring of weather conditions and structural integrity
- Advanced safety equipment and fall protection systems
Each slate roof repair project receives our 20-year guarantee and demonstrates our commitment to maintaining the highest industry safety standards.
Slate Roof Repairs Safety and Security
When Keystone Roofing Ltd. performs slate roof repairs, our team prioritizes safety and security through thorough precautions and protocols. We start by securing the work area with safety barriers and warning signs to protect both our workers and anyone near the property.
Our technicians wear industry-standard safety equipment including harnesses, non-slip footwear, and protective gear. We understand the importance of protecting your property during repairs. Our team places protective covers over gardens, windows, and vulnerable areas to prevent any damage from falling debris.
We’re fully insured and registered, giving you complete peace of mind throughout the repair process. Our 10-year home security promise ensures lasting protection for your property.
Our emergency assist service operates 365 days a year, so we’re always ready to respond to urgent safety concerns. We use advanced tools and techniques that meet current safety standards, and our expert team follows strict quality control measures.
Every repair project includes an all-encompassing safety assessment before work begins. This systematic approach helps us maintain our outstanding safety record while delivering high-quality slate roof repairs across Cork and Tipperary.
Get Your Free Slate Roof Assessment
Protect Your Heritage With Cork’s Most Trusted Slate Roof Specialists
Call 087 223 4228 now to schedule your expert slate roof repair.
Our 20-year guarantee and emergency service guarantee your peace of mind.
Don’t wait until it’s too late – contact Keystone Roofing Ltd today.
At Keystone Roofing Ltd., we offer a comprehensive range of specialized roof repair services designed to meet the unique needs of every property. Whether your roof is tiled, flat, slate, or metal, our skilled team delivers reliable, high-quality repairs that stand the test of time.
Roof Tile Repairs: We expertly repair damaged or dislodged roof tiles to protect your home from leaks and structural issues. Using high-grade materials and precision techniques, we restore the integrity and appearance of your tiled roof.
Flat Roof Repairs: Our experienced roofers handle all flat roofing issues, including pooling water, membrane damage, and poor insulation. We ensure proper drainage and long-term performance with tailored repair solutions built for Cork’s climate.
Metal Roof Repairs: From rust and corrosion to loose fasteners and seam issues, our metal roof repair services restore strength and function. We apply advanced techniques and protective solutions that safeguard your investment for years.
