External Refurbishment Contractor London

External refurbishment covers the repair, restoration and protection of a building's external envelope — everything from the roof line down to the ground floor. For residential blocks and managed buildings, this typically encompasses facade repairs, render replacement, masonry repointing, concrete repairs, balcony refurbishment, external decorations and protective coating systems.

Many external refurbishment programmes on residential blocks are significant capital works procured under Section 20 of the Landlord and Tenant Act 1985. MEND Building is experienced in supporting managing agents and RMCs through the Section 20 process from tender stage through to project completion.

• Render repairs and replacement — sand and cement, monocouche and through-coloured render systems
• Protective coatings — breathable masonry paint, silicone render coatings and anti-carbonation systems
• Masonry cleaning — low-pressure wet cleaning, steam cleaning and chemical cleaning to brick, stone and concrete
• EWS1 and cladding remediation — external wall survey support and cladding replacement programmes

• Repointing — raking out and repointing in lime mortar, sand and cement, or specialist mortars matched to existing
• Spalled brick replacement — cutting out and replacing individual spalled, blown or frost-damaged bricks
• Crack repairs and masonry stitching — epoxy injection, cementitious grouting and stainless steel helical bar stitching
• Lintel replacement — removal and replacement of failed lintels over door and window openings
• Parapet and coping repairs — coping stone reseating, DPC replacement and parapet brickwork repairs

• Hand-applied cementitious repair mortars — BS EN 1504-3 compliant structural and cosmetic patch repair to spalled and delaminated concrete
• Balcony soffit concrete repairs — full breakout and reinstatement of spalled balcony soffits
• Crack injection — epoxy and polyurethane resin injection to structural and non-structural cracks
• Reinforcement treatment — corrosion inhibitor and passivation coatings to exposed reinforcement
• Anti-carbonation coatings — BS EN 1504-2 compliant protective coating systems to concrete facades and soffits

• Balcony deck waterproofing — new waterproofing to concrete, screed and structural balcony decks
• Balcony edge and soffit repairs — concrete reinstatement, render and protective coatings
• Balcony drainage — outlet replacement, channel drainage and upstand repairs
• Balustrade and ironwork repairs — metalwork repairs, preparation and repainting

• Below-ground waterproofing — Type A tanking, Type B integral systems and Type C cavity drain membranes to BS 8102
• Podium deck waterproofing — parking decks, terraces and planted podiums
• Sealant and mastic replacement — joint sealant removal and replacement to windows, doors and panel joints
• Damp investigation and remediation — identification and repair of water ingress routes with written survey reports

• External envelope specialists — this is what we do. We are not a general builder offering refurbishment as a sideline
• Section 20 experience — we regularly deliver major external refurbishment programmes under Section 20 and work closely with managing agents throughout
• BS EN 1504 concrete repairs — all concrete repair works are carried out to the European standard with approved materials from Sika, Fosroc, MC Bauchemie and BASF
• Live environment expertise — we work on occupied residential blocks and prioritise resident safety, clear communication and minimal disruption
• JCT contracts — we price and deliver under JCT Minor Works and Intermediate contracts as standard

1. 1Survey & Schedule of Works — We survey the building envelope and produce a clear, itemised schedule of works. We can work from a client-supplied specification or produce our own.
2. 2Tender & Pricing — We provide transparent, competitive pricing in a format suited to the managing agent or contract administrator.
3. 3Pre-Construction — Access strategy, scaffold design, resident notification, programme and phasing are agreed before works start on site.
4. 4Delivery — Experienced site teams carry out all works safely and professionally, with regular updates to the contract administrator throughout.
5. 5Handover — Works are snagged, inspected and signed off. Full documentation, warranties and maintenance guidance are provided on completion.

We carry out external refurbishment works across all London boroughs, including Wandsworth, Lambeth, Southwark, Lewisham, Greenwich, Tower Hamlets, Hackney, Islington, Camden, Westminster, Kensington and Chelsea, Hammersmith and Fulham, Ealing, Brent, Barnet and Croydon.

Contact our team today to discuss your external refurbishment project. We provide a clear scope, competitive pricing and a reliable service for managing agents, housing associations and freeholders across London.

Call us on 020 7205 7372 or request a quote online.