Natural slate roof repair and restoration for historic churches, estates and landmark buildings.
Roof system
Slate Roofing explained
Slate is natural stone, split from metamorphic rock into thin roofing shingles. A quality slate roof can last 75 to well over 100 years.
Most slate roofs fail at the flashing and fasteners, not the stone. Careful repair keeps the original character of a historic building while making it watertight again.
Warning signs
When to Call Blackstone
- Cracked or slipped slates
- Rusted or failed nails
- Worn copper or lead flashing
- Leaks at chimneys and valleys
- Previous repairs with tar or sealant
- Missing slates after a storm
How we help
What Blackstone Does
Slate repair
Replacing cracked or missing slate with matched stone.
Flashing restoration
New copper flashing at valleys, chimneys and walls.
Historic restoration
Work planned to preserve the original look of the building.
Questions
Slate FAQ
Can you match my slate?
We source slate to match color, size and thickness as closely as possible, often from reclaimed stock for older roofs.
Is slate repair worth it?
Usually. The stone itself often has decades of life left, so repairing flashing and fasteners is far cheaper than replacement.
Why not just seal leaks with tar?
Tar traps water and makes future repairs harder. Proper slate repairs use matched slate and metal flashing.
Related
Related Services
Talk to Blackstone
Get a Free Inspection
Tell us what is going on with your property. A project manager will follow up with next steps.