Commercial stairwells and fire exits don't get the same attention as a freshly painted lobby or a client-facing boardroom. They should. These areas handle constant foot traffic, carry emergency signage obligations under the National Construction Code, and sit in conditions that destroy the wrong paint product within 18 months. Apex Painting works on commercial stairwells across Melbourne regularly, and the mistakes tend to cluster around the same three areas: wrong finish, inadequate prep, and ignoring compliance requirements before the first coat goes on.
Why stairwells are harder than standard commercial walls
The physical environment in a stairwell is genuinely punishing. Handrails and balustrades transfer oils and grime to nearby walls constantly. Concrete landings flex slightly under load, which stresses paint adhesion at the edges. Poor natural light means scuffs and chips accumulate before anyone notices them. In fire-rated stairwells, the situation is even more specific: the paint system itself can't compromise the fire rating of the underlying substrate.
Concrete block and rendered masonry are the most common stairwell substrates in Melbourne commercial buildings. Both are alkaline, and applying a standard acrylic directly to fresh or recently patched masonry without a suitable primer is one of the fastest ways to cause adhesion failure. Apex Painting always tests pH before priming in stairwells. New concrete needs time to cure fully. Anything under 28 days risks paint lifting within a season.
Steel elements, including door frames, handrail brackets and kick plates, need a separate product stream. Water-based enamels work well here if the surface is properly degreased and primed with a metal-specific primer. Skipping the primer coat on steel is where rust telegraphs through the finish within months.
Sheen level: the decision most people get wrong
A flat or low-sheen finish might look clean in a freshly painted stairwell, but it won't stay that way. Stairwells collect scuffs from luggage, trolleys, and cleaning equipment. A surface that can't be wiped clean will need repainting far more often, which means more disruption and more cost. The right sheen for most commercial stairwell walls is a semi-gloss or satin finish using a durable commercial-grade product rated for high-traffic walls. This gives the surface genuine cleanability without the clinical glare of a full gloss.
Ceilings are a different case. A flat finish on a stairwell ceiling is fine because it doesn't take direct contact and the low reflectance actually helps diffuse emergency lighting more evenly. Painting ceilings in a high-sheen product is a common mistake in stairwells. It creates hotspots that make emergency exit signage harder to read clearly in low-light conditions.
Compliance requirements you can't ignore
Fire exits in commercial buildings are subject to Australian Standard AS 3745-2010 (Planning for Emergencies in Facilities) and the relevant provisions of the National Construction Code. In practice, this creates three painting obligations that Apex Painting flags to every commercial client before quoting a stairwell job.
- Signage visibility: Paint colour choices around exit signs and directional wayfinding signage must not reduce contrast below the minimum specified in the building's emergency evacuation plan. Green exit signs on a dark green wall fail this test.
- Non-slip coatings on landings: If the landing surface is being painted or recoated, the product must include an approved non-slip aggregate or texture. Smooth painted concrete on a stair landing is a liability issue, not just a maintenance one.
- Fire-rated substrates: In fire-rated stairwells (typically 2-hour rated enclosures in multi-storey buildings), the paint system must not reduce the substrate's fire rating. Intumescent coatings on structural steel, for example, can't simply be painted over with a standard commercial product without voiding the rating.
Getting this wrong isn't a cosmetic problem. A building owner whose stairwell fails a fire safety audit after a painting job will face remediation costs that dwarf the original painting contract. Apex Painting documents every product used in fire-rated stairwells, including technical data sheets, so clients have the paperwork if an inspection requires it.
Colour choices that actually serve the space
Stairwells don't need to be institutional grey. Melbourne commercial buildings increasingly use stairwells as branded environments, particularly in creative and hospitality sectors where the stairwell connects multiple levels of a fit-out. That's a legitimate approach, but it works best when the colour choice doesn't compete with wayfinding elements.
Light, neutral tones on the walls paired with a contrasting colour on the handrail or balustrade is a practical scheme. It gives the space visual interest while keeping the structural elements distinct. Dark feature colours work on a single accent wall per landing, not on all four walls. A fully dark stairwell becomes harder to maintain because every scuff and chip shows immediately against a deep background, and repainting to patch becomes a colour-matching challenge. Apex Painting's experience with colour consistency across commercial sites is relevant here: stairwells in multi-level buildings need to match across every floor, and that requires consistent batch numbers from the same supplier, not just the same colour code.
Scheduling around building use
A stairwell is harder to take out of service than a boardroom. In most commercial buildings, fire exits can't be blocked or inaccessible during business hours without a formal fire safety management plan in place for the duration. This means stairwell painting almost always happens in stages: one stairwell at a time if the building has multiple cores, or outside occupied hours if there's only one egress route.
Fast-drying water-based products are the practical choice here because they allow recoating within two to four hours and return the surface to foot traffic the same day. Oil-based products produce a harder finish but the longer dry times make them impractical in a stairwell that can't be closed overnight. Apex Painting uses Dulux Professional commercial-grade acrylics in most Melbourne stairwell projects for exactly this reason: the dry times are predictable and the durability is proven in high-traffic environments.
Ventilation is a separate issue. Stairwells are often sealed or poorly ventilated, and odour from even low-VOC products can migrate through a building quickly. Portable fans exhausting to an exterior opening on each landing, rather than just circulating air within the stairwell, solve this without requiring the building to be fully vacated.
What a proper stairwell repaint actually includes
A stairwell repaint that will last five or more years in a Melbourne commercial building covers several surfaces and product types, not just the walls. Apex Painting's standard scope for a commercial stairwell job includes washing all surfaces, filling cracks and spalls in masonry with a flexible filler, priming bare patches and any steel elements separately, applying two coats of a semi-gloss commercial acrylic to walls, repainting door frames and balustrades with a suitable enamel, and applying a non-slip coating to any painted concrete landings.
That's a different scope to a simple repaint. Clients who price only the wall area and then find the door frames and landings weren't included end up with a result that looks inconsistent after six months of use. A thorough brief at the quoting stage eliminates that problem. The scope should specify every surface, every substrate type, and any compliance requirements that apply to the specific building, before the first quote comes back.