Slipped or Broken Slates in Sevenoaks? Find Out Whether Repair Is Still Practical.
Local repairs may be appropriate where the surrounding slate roof in Sevenoaks remains serviceable. We assess the condition of the slate covering, battens and membrane across Sevenoaks and nearby Riverhead, Seal, Kemsing, Dunton Green before recommending repair or a full re-slate. Your written quotation can be sent directly by WhatsApp or email.
About this service
Slate roofing uses natural or man-made slate tiles fixed to battens over a breathable membrane. Slates can slip when their fixing nails corrode (nail sickness), crack from impact or frost, or delaminate as they age. Because slates overlap, a single slipped slate can let water onto the membrane and eventually into the roof space. We inspect the slate covering — with a drone where access is difficult — to assess whether individual slates can be replaced or the roof needs a full re-slate.
A slate re-roof strips the old slates, renews the membrane and battens, repairs any decayed timbers, and reinstates the slates (reusing sound slates where possible) with new leadwork, ridges and verges. We use the correct slate and fixing method for the roof and its pitch.
Typical problems we solve
- Slipped, cracked or missing slates
- Nail sickness causing slates to slip repeatedly
- Leaks through a slate roof during rain
- Delaminating or heavily weathered slates
- Failed slate valleys or lead flashings
- A slate roof nearing the end of its serviceable life
Benefits
- Slipped and cracked slates replaced promptly
- Correct slate and fixing method for your roof
- Sound slates reused on a re-roof where possible
- Leadwork and valleys renewed to a lasting standard
- Drone surveys for safe close-up inspection
- Up to 10-year workmanship guarantee on qualifying re-roofs
Our process
We inspect the slate covering, the membrane and the timbers — using drone imagery where access is difficult — and advise honestly whether individual slates can be replaced or a full re-slate is the better long-term value. A written quotation sets out the slates, membrane, leadwork and any timber repairs.
How we carry out the work
For repairs, we replace slipped or cracked slates using the correct method and matching slate. For a re-slate, we strip the roof, renew the membrane and battens, repair timbers, and reinstate the slates with new leadwork, ridges and verges to a weathertight, lasting standard.
Drainage considerations
Slate valleys carry a large volume of water and are a common leak source. We check and renew valley linings as part of any repair or re-roof so water is channelled safely to the gutter.
Edging and finishing
Ridges, verges and abutment flashings are detailed correctly — with dry ridge systems or mortar as appropriate — so the slate roof has a neat, wind-resistant edge and ridge.
Maintenance information
A sound slate roof needs little more than occasional inspection and gutter clearing. We advise on what to watch for, particularly slipped slates after high winds, and can carry out periodic checks.
Frequently asked questions
Can you replace individual slates or does the whole roof need doing?
Often individual slates can be replaced. If slates are slipping repeatedly from nail sickness, or the covering is broadly weathered, a re-slate may be better value. We inspect and advise honestly either way.
How long does a slate roof last?
Natural slate can last 80–100 years or more, but the fixing nails and membrane often fail sooner. An inspection tells you where your slate roof sits in its serviceable life.
Contact Pro Guard Roofing Specialists Ltd
Call us on 01622 611 499 or email info@proguardroofingspecialists.co.uk. Calls are answered by our team 24/7 — no AI receptionists.
Pro Guard Roofing Specialists Ltd. Registered in England and Wales. Company No. 16026198. Registered Office: Maidstone House, King Street, Maidstone, England, ME15 6JQ.