Roof Repairs
Slate Roof Repairs for Sydney Heritage Homes
Careful, craftsman repairs for slate roofs, using the right slates and the right techniques.
Slate is beautiful and can last a century or more, but it's unforgiving of shortcuts. Sydney's grand old homes and heritage buildings often have slate roofs where the slate is still sound but the nails and flashings have failed. Repairing slate is a specialist job, it needs the right slate, the right fixings and someone who knows how to work the roof without cracking half the slates around the repair.
Nail sickness and slipped slates
The most common reason old slate roofs fail isn't the slate, it's the nails. When the fixing nails rust away, a condition roofers call nail sickness, slates start slipping off one by one even though they're perfectly good. We re-fix slipped slates using slate hooks or copper nails and lead tingles so the repair matches the longevity of the slate itself.
We never rely on smearing sealant over a slipped slate. It looks fixed for a while, traps moisture, and accelerates decay. Proper slate work is mechanical, holding each slate in place the way it was designed to be held.
Cracked and delaminating slates
Slate can crack from impact or foot traffic, and lower-grade slate can delaminate, flaking into layers as water gets between the natural laminations and freezes or dries repeatedly. We remove damaged slates cleanly with a slate ripper and fit matching replacements, sourcing slate that suits the size, thickness and colour of your existing roof.
Lead flashings and valleys
Slate roofs are traditionally detailed with lead flashings and lead-lined valleys, and the lead often fails before the slate does. Cracked, split or lifted lead lets water straight in around chimneys, valleys and abutments. We repair and re-dress lead work to keep the roof watertight and in keeping with the building's heritage character.
What's Included
- Re-fixing slipped slates with slate hooks, copper nails or lead tingles
- Replacement of cracked and delaminating slates with matched stock
- Careful removal of damaged slates using a slate ripper
- Repair and re-dressing of lead flashings and valleys
- Sympathetic work suited to heritage and character homes
- Assessment of nail condition across the roof to flag wider failure
Frequently Asked Questions
My slate roof is losing slates. Does the whole roof need replacing?
Not necessarily. If the slates themselves are still sound and it's the nails that have failed, individual re-fixing and targeted repairs can keep the roof going for years. If nail sickness is widespread, a full re-slate using the existing slates may make sense. We assess and tell you honestly.
Can you match my old slates?
We source replacement slates to match the size, thickness, colour and texture of your existing roof as closely as possible. Natural slate varies, and reclaimed slate is sometimes the best match for a heritage roof, so we discuss the options rather than fitting whatever's cheapest.
Why shouldn't slates just be sealed or glued down?
Because slate is designed to be held mechanically, not stuck. Sealant traps moisture behind the slate, hides the real problem and speeds up decay, and it makes future repairs harder. Proper fixings like copper nails and lead tingles are how slate has been held for centuries, for good reason.
Is slate work more expensive than other roof repairs?
It's more specialised and slower, and the materials cost more, so yes, it generally costs more than tile or metal repairs. The trade-off is a roof that can last another century when maintained properly. We give a clear quote so you know exactly what's involved before we start.
Request a Free Inspection
Book a free, no-obligation inspection with our local crew.
Ready To Protect Your Home?
Book Your Free Roof Inspection Today.
Whether you need emergency roofing, leak detection, storm damage repairs or simply peace of mind, our experienced roofing specialists are ready to help. No pressure. No hidden costs. Just honest roofing advice.