Information verified and published: 13 October 2026
How a full re-roof with man-made slates put an end to years of recurring leaks for a homeowner in Southfields — completed in just one week, with a 25-year warranty.
Client
Alison Endenburg
Location
Southfields, London
Roof type
Project duration
1 week
Completion date
October 2024
Alison's roof had been letting in water during heavy rain for some time. Over the years it had been patched up more than once, but each repair only bought a little time before the leaks came back. By the time she contacted Knights Roofing, the roof had reached the point where further patch repairs were no longer a sensible option — the slates and underlying structure were beyond the stage where isolated fixes would hold up.
Stop all leaks for good and make the roof fully watertight, backed by a guarantee.
Every re-roofing project follows the same careful process, so nothing gets missed and the finished roof is built to last.
We assessed the full extent of the damage and the condition of the existing structure before agreeing the scope of work.
The old slates and any deteriorated underlay were stripped back to a sound base.
Any weakened timber and structural elements were repaired before new materials went on.
A new waterproof underlay was fitted across the full roof to provide a reliable barrier against future leaks.
New man-made slates were installed across the roof to match the look of the original while improving long-term performance.
A final check confirmed the roof was fully watertight and finished to the required standard before handover.
Completion time
1 week
Warranty provided
25 years
Issues resolved
Yes
A brand new slate roof that is now fully waterproof and leak-free, giving Alison a watertight home backed by a 25-year warranty.
"Reroofing excellent from start to finish"
"We had numerous quotes to patch up our very old roof over the years. Knights quoted to redo the whole roof rather than patch it up as it was beyond repair. The quote was less than expected once they saw that the parapets needed less work than first thought. Luke and the team did a great job, and Krystal in the office was very helpful throughout."
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