London Borough of Merton · Contracts Finder

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Tender: Perseid Upper School Roof Renewal – Replacement of Sedum and Single-Ply Flat Roofs, Morden

Released 6 months ago

Closed10 Jun 2026

Est. valueEstimate£40K to £190K

LocationUnited Kingdom

AgencyLondon Borough of Merton

SourceContracts Finder

CategoryConstruction

Submissions closedClosed Wed, 10 June 2026

About

Perseid Upper School is seeking a contractor to strip and renew isolated flat roofs at its Morden site, replacing failed sedum and single‑ply membranes that have exhibited patch repairs and are causing water ingress. The works involve removing the existing sedum roof and single‑ply membrane, including circa 200mm of insulation to expose the deck, with the intention—subject to deck inspection—of installing a new vapour control layer before adding PIR insulation and a high performance liquid overlay system designed to meet Part L2B of the Building Regulations. A manufacturer’s specification and drawings are provided, though contractors may quote approved equivalent alternatives. The contractor must liaise with the site Caretaker in good time before works commence and regularly while on site; works are to be carried out over the summer holidays when there are no children or activities on site, and operatives therefore do not require DBS certificates.

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