Parapet Repair & Flat Roof Replacement – Lift Shaft, London (2024)

Project Details:
Location: London
Year: 2024
Sector: Commercial / Residential

Scope: Parapet repairs and flat roof replacement over lift shaft

Scope of Works:
Removal of existing failed flat roof waterproofing
Localised parapet masonry repairs and preparation
Installation of new flat roof waterproofing system
Formation of watertight upstands and parapet details
Integration with existing brickwork and roof interfaces
Quality control checks to ensure full weatherproofing

Outcome:
A fully renewed flat roof and repaired parapet structure providing a robust, watertight solution over the lift shaft. The works restored the integrity of the building envelope, eliminated water ingress issues, and delivered a durable, long-term roofing solution compliant with modern standards.

Description:
Parapet repair and flat roof replacement works were carried out over an existing lift shaft in London, addressing long-term water ingress, deteriorated waterproofing, and localised masonry defects. The project required careful coordination due to the live building environment and the critical function of the lift shaft below.

The works involved removal of the failed flat roof build-up and defective parapet elements, followed by repairs to the masonry substrate. A new high-performance flat roof waterproofing system was installed, including upstands and parapet details, to ensure full weather protection and long-term durability. All interfaces were carefully detailed to eliminate future water ingress and ensure a clean, professional finish.