Why large traditional roofs require a different approach
Roof shape and access often matter as much as roof area. Tall elevations, protected landscaping, fragile stonework, ornate chimneys, complex lead valleys and occupied interiors can change both cost and method. If buildings remain in use during works, the project may also need a carefully phased weatherproofing and access plan.
Commission enough information before tendering
Collect existing survey reports, measured drawings, records of leaks, roof photographs and any consent history. For complex or protected buildings, a conservation architect or suitably experienced surveyor may need to define the repair strategy. Contractors should know whether they are pricing a developed specification or an initial exploratory scope.
Do not assume every old slate requires replacement. Sound original material may be suitable for recovery and re-use, subject to assessment.
Build a roof-by-roof scope, not a single vague description
- Main ranges: extent of slate failure, ridges, hips and fixings
- Secondary roofs: dormers, bay roofs, turrets, porches and extensions
- Waterproofing details: valleys, parapet gutters, flashings and junctions
- Underlying fabric: sarking, battens, rafters, ventilation and rot risk
- Logistics: scaffolding, hoists, protection of grounds, occupants and access roads
- Heritage requirements: matching materials, documented salvage and permission checks
How to compare serious roofing proposals
Ask whether each contractor has worked on comparable roof geometry and traditional materials, has appropriate insurance and availability, and can explain exclusions. Establish how latent timber defects and changes in scope will be valued. A carefully developed specification makes competitive quotations more useful than a simplistic headline price.
See our separate major slate-roof quotation comparison guide.
How SSR can assist without replacing professional advice
SSR can coordinate initial outreach to a limited group of suitable independent slate roofing contractors for substantial projects. We are not the architect, surveyor, contract administrator or technical designer, and we do not certify quotations. Our owner introduction service is free; contractor-side arrangements are disclosed. The owner and their appointed advisers retain control of specification, consents and contractor choice.
Frequently asked questions
Do you only help with listed country houses?
No. We consider substantial natural-slate work on unlisted period properties too, depending on scope and contractor suitability.
Can a project begin before the specification is final?
Initial capacity conversations can, but contractors may require a clear scope and access arrangements before giving reliable prices.
Can I seek quotations from more than one specialist?
Yes. Where appropriate, SSR can introduce up to three suitable independent contractors; availability and three quotations are not guaranteed.
Further guidance and sources
These independent references explain official repair categories, maintenance and consent considerations. SSR does not claim their endorsement.