Whitefriars Wharf: external waterproofing

Client: PJJS Management Services. Location: Whitefriars Wharf, Tonbridge. Progress recorded: 2 October 2026, covering 29 September–2 October.

The water-ingress problem

The external programme addressed defective parapet gutter decks, waterproofing and coping details. Debris, failed joints and areas of standing water required preparation and repairs before renewing the waterproofing.

Preparation, renewal and recorded results

The Week 6 report records cleaning, drying, cutting back failed joints, priming decks and upstands, and renewing membrane with sealed laps and outlet detailing. Above No. 28 in Block 2, the deck was renewed and falls adjusted towards the outlet to reduce ponding.

Debris and contamination in a parapet gutter before preparation — **Before**Week 6 site record: gutter condition before preparation.

Existing defective gutter joint — **Repair detail**Week 6 site record: an existing joint requiring attention.

Renewed plywood gutter deck during preparation — **During**Deck preparation photographed during the external programme.

Renewed membrane along a parapet gutter — **Completed area**Week 6 site record: renewed gutter waterproofing.

Membrane and leadwork at the parapet gutter — **External detailing**Membrane and coping leadwork photographed during the programme.

Dry undercroft floor photographed after rainfall — **Observed result**The report recorded a dry undercroft floor after rainfall. Further heavy-rain monitoring was recommended.

Areas and programme status

The following status is taken from the report dated 2 October 2026. Completed areas do not mean the whole external programme was finished.

Work location	Recorded status	Scope
Block 1 · above No. 78	Completed area	Gutter cleaned and prepared; membrane renewed, including outlet and sealed junctions.
Block 2 · above No. 28	Completed area	Deck renewed, falls adjusted towards the outlet, and new membrane installed and sealed.
Block 1 · No. 90	Remaining external work	Gutter renewal remained within the agreed programme.
Block 1 · above Nos. 57–66	Approved forthcoming work	New membrane remained within the agreed programme.
Block 1 · external brickwork by No. 78	Approved forthcoming work	Helical bars and new mortar in chased joints and cracked brickwork; no brick removal proposed.

Separate internal and lift-shaft scopes

Internal water-damage reinstatement and lift-shaft reinstatement are separately quoted scopes awaiting quotation finalisation and approval. They are separate from the agreed external programme shown here.

What the observation tells us

The dry undercroft photographs were a positive observation after rainfall. They record conditions at that visit and do not establish that all water-ingress issues across the development have been resolved. Continued monitoring during future heavy rainfall was recommended.

A separate completed plumbing-leak investigation and internal reinstatement project is documented in our concealed plumbing leaks case study.

Property and estate maintenance · Roofing and guttering

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