The London Property Maintenance Checklist for Estate Agents

Outdoor space in London is rarely just "lawn" — it's communal courtyards, roof terraces, light wells, basement areas and street frontage. Run this quarterly at minimum.

• Spring: first cut of communal lawns, hedge tidy before nesting-bird restrictions bite, weed treatment to paving and bin stores, moss removal from north-facing paths.
• Summer: fortnightly grass cuts, watering of new planting, checks on automatic irrigation, Japanese knotweed inspection on London boundary walls.
• Autumn: gutter and downpipe clearance (London leaf-fall peaks late October — November), drain rod & jet, leaf clearance on communal paths to reduce slip claims.
• Winter: grit-bin top-ups, gritting of communal steps and ramps, pruning of deciduous trees, frost protection on external taps.
• Tree surveys every 2–3 years on any property with mature trees — TfL and most London boroughs expect a documented Visual Tree Assessment if a tree overhangs the public realm or a neighbouring boundary.

Leaks are the single biggest source of insurance claims on London flats. Most are preventable.

• Annual descale and service of communal hot-water plant; London water is hard and limescale shortens cylinder and TMV life dramatically.
• Pressure check on cold-water booster sets in any building above 3 storeys and log readings for the L8 file.
• CCTV drain survey on entry to manage a new block; rod & jet annually on older Victorian stock.
• Roof terrace and balcony drainage inspection every spring and autumn — blocked outlets are the most common cause of escape-of-water claims.
• Leak detection (acoustic or tracer-gas) before opening a ceiling — far cheaper than reinstating a whole flat.

• Full roof inspection annually, with high-level photos — slipped slates, flashing failures and parapet cracks are the usual London suspects.
• Clear gutters, hoppers and downpipes twice a year. Plane-tree leaves are fibrous and block hoppers solid.
• Check abutments and lead flashings on every chimney and parapet — London freeze-thaw cycles open these up faster than you'd think.
• Single-ply / felt flat roofs: visual inspection every spring; intrusive survey at year 8 and every 3 years after.

Since the Fire Safety (England) Regulations 2022, responsible persons in multi-occupied residential buildings have hard, dated obligations. Treat this as non-negotiable for any London block.

• Quarterly checks of communal fire doors in buildings above 11m.
• Annual checks (best-endeavour) of flat entrance fire doors in buildings above 11m.
• Intumescent seals, smoke seals, self-closers, hinges and gaps (≤4mm perimeter, ≤8mm threshold) recorded on each inspection.
• Annual fire-risk assessment review; full re-assessment when works, tenancy mix or cladding status change.
• Emergency lighting monthly flick-test and annual 3-hour drain-down.
• AOV / smoke vents serviced annually and after any building works affecting the smoke shaft.

• EICR: every 5 years for rented residential, sooner if the report demands; communal EICR every 5 years.
• Gas Safety (CP12): annual on every appliance the landlord owns.
• Legionella (L8) risk assessment: reviewed every 2 years or after any system change.
• Asbestos: management survey on pre-2000 stock, reviewed annually.
• Lifting equipment (LOLER): 6-monthly thorough examination on passenger lifts; 12-monthly on goods lifts.
• EPC: minimum E for residential lettings (proposed C from 2028 — start planning now); minimum E for most commercial lets.

• Weekly communal clean: stairs, lifts, glazing to entrance, bin store, touch-points sanitised.
• Quarterly deep clean of bin chambers and refuse routes — Westminster, RBKC and Camden environmental health officers do drop in.
• Void turnaround: meter reads, smoke alarm test, deep clean, EICR check, key audit, photo handover pack to the incoming tenant.
• Decorative cycle: communal repaint every 5–7 years, more often in high-traffic Zone 1 buildings.
• Lock and access control checked annually; key registers reconciled at every tenancy change.

• Photograph and report incidents the same day — escape of water, impact damage, fire, storm. Memory fades, premiums don't.
• Get an itemised contractor quote before notifying insurers where the excess might exceed the repair cost.
• Use a single contractor for strip-out, drying and reinstatement so the audit trail is clean.
• Keep a copy of the policy schedule with the property file — contractors need to know what's covered before they price.