Painting a Communal Stairwell in a London Flat Building: Specification, Process and Compliance
A trade guide to painting communal stairwells in London flat buildings: fire-rated products, managing agent processes, specification and disruption management.
Why Communal Stairwells Are a Distinct Project Type
Painting a communal stairwell in a London residential block is categorically different from decorating a private flat. The stairwell is a shared asset, managed on behalf of leaseholders, and it forms part of the building's means of escape in the event of a fire. That last point carries legal weight that shapes the entire specification.
The responsible parties — managing agents, right-to-manage companies, or freeholders — have duties under the Regulatory Reform (Fire Safety) Order 2005 and, since 2022, under the Building Safety Act. Those duties include ensuring that any works carried out in common areas do not reduce the fire performance of the building. Using an incorrect paint product in a communal stairwell is not merely a quality issue; it can constitute a compliance failure.
The Fire Safety Specification
The key requirement in communal areas is the use of intumescent or Class 0-rated products where specified by the building's fire risk assessment. Class 0 is the highest surface spread of flame classification under BS 476 Part 6 and Part 7, and many managing agents now require it as a minimum for all common area walls and ceilings.
Products certified to Class 0 include Nullifire water-based intumescent coatings, Envirograf, and a range of products from Sherwin-Williams and Leyland Trade. The key distinction:
- Class 0 intumescent paint does not by itself close gaps or seal structural openings; it slows the spread of flame across the painted surface
- Intumescent strips and seals on fire doors are a separate but related requirement — check these are in place before any painting work begins
The building's current fire risk assessment should specify the required rating. If no fire risk assessment exists or is out of date, the managing agent has a duty to commission one before specifying any works to the common areas.
Working with Managing Agents
Most communal stairwell projects in London blocks go through a managing agent. The practical process typically runs as follows:
- Initial survey — the contractor surveys the stairwell, assesses existing decoration (condition, existing products if known, number of previous coats), identifies any defects requiring remediation before redecoration
- Written specification — a detailed specification is submitted, including primer, undercoat and topcoat products with technical data sheets, the fire rating of each product, and the preparation method
- Leaseholder consultation — for significant works, section 20 consultation under the Landlord and Tenant Act 1985 may be required if the cost exceeds £250 per leaseholder
- Agreed programme — because residents must continue to use the stairwell, the programme must be phased to ensure continuous access to all floors at all times. Work typically proceeds floor by floor with a minimum 24-hour window between floors
Disruption Management
Access control during stairwell painting is a genuine operational challenge. Wet paint on bannisters in a heavily used building will inevitably be touched; this needs to be planned for. Practical measures include:
- Temporary barrier tape and clear signage on each completed section
- Work scheduled outside peak commuting hours where possible (typically 10am–4pm)
- Prior written notice to all residents via the managing agent, giving at least 5 working days' warning
- Clear communication on expected smell, noise and drying times
Water-based products dry faster and have significantly lower odour than oil-based equivalents, which matters considerably in an enclosed stairwell with limited ventilation. Modern water-based eggshell and satin products (such as Dulux Trade Diamond Eggshell or Johnstone's Aqua Water-Based Gloss) provide the durability required for a high-traffic surface without the extended off-gassing of traditional alkyd systems.
Surface Preparation in Communal Areas
Communal stairwells in London mansion blocks accumulate decades of paint layers. Preparation typically includes:
- Full washing of all surfaces with sugar soap or a proprietary cleaner to remove grease, airborne contamination and scuff marks
- Filling of all cracks, nail holes, and damaged areas with a flexible filler
- Sanding of all gloss surfaces to provide mechanical key for new coats
- Spot priming of any bare wood or metal where previous coats have been removed during preparation
On Victorian and Edwardian properties, test existing paint layers for lead content before sanding — dry sanding of lead-based paint is subject to control under the Control of Substances Hazardous to Health Regulations (COSHH).
Colour and Finish
Managing agents tend to specify neutral colours — warm white, light grey, or pale stone — for maximum perceived brightness. Eggshell or soft sheen finishes are preferred over flat emulsion as they wipe clean more readily and better withstand the repeated contact that a stairwell receives.
For communal stairwell painting in London, contact us here to discuss specification and compliance, or request a free quote for your building.