- Get a quote from 5-Star reviewed Green Point boundary wall specialists
- Protect boundary walls against Cape UV and winter moisture
- Anti-algae and UV-resistant products specified as standard
Why Boundary Walls Need Regular Painting
Boundary walls take more punishment than any other wall on a property and get maintained the least. They are exposed on both faces, so there is no sheltered side, and they sit at ground level where they pick up splash-back, irrigation spray and rising moisture.
In Green Point they also stand directly in the salt airstream with nothing in front of them. Free-standing walls facing the sea weather noticeably faster than the building behind them, and the coping is usually first to go - once water gets in at the top of a wall it travels down inside it and pushes the plaster off both faces.
The other Green Point factor is that a boundary wall is often the only thing the street sees. On a block, it is the frontage that sets the impression of how well the scheme is maintained, which is why trustees tend to notice it before anything else.
Our Boundary Wall Painting Process
- Check the coping first. A cracked or missing coping is the most common cause of boundary wall failure and no coating will compensate for it
- Fresh-water wash to remove chlorides, dirt and biological growth from both faces
- Biocide treatment where moss, algae or lichen are established, particularly on the shaded south-facing side
- Sound the plaster and cut back all blown and hollow areas to sound material
- Treat any exposed steel - gate fixings, palisade posts and reinforcing - with a coastal-grade primer
- Repair plaster and allow proper curing before coating
- Alkali-resistant primer on all bare and repaired areas
- Two coats of a durable exterior system, with a more robust specification on the seaward face where it is warranted
Matching Estate and HOA Colour Requirements
In Green Point the constraint is usually a body corporate rather than a homeowners association, but the principle is the same: the boundary wall is common property and its colour is not an individual decision.
Before ordering paint we confirm the approved colour against the scheme's records rather than matching by eye to the existing wall - which has usually faded several shades from what was originally specified. Matching to a faded wall locks in the drift, and a year later the repainted section reads as a different colour to the rest.
Where no record exists, we colour-match from a protected area of the original coating, behind a downpipe or under the coping, and get that reference approved in writing before proceeding. On buildings over 60 years old it is also worth checking whether any heritage constraint applies to street-facing elements.
Waterproofing Boundary Walls
A free-standing wall is one of the few structures exposed to weather on every surface, and the top is the vulnerable one. Water entering through a failed coping or an unsealed top course saturates the wall core and then works outward, blowing plaster off both faces. Painting the faces while leaving the top open simply seals moisture inside.
Rising damp is the second route. Boundary walls frequently have no damp proof course at all, so ground moisture wicks upward, carrying salts that crystallise and blow the plaster. The tide mark low down on the wall is the giveaway.
The practical approach is to deal with the top and the base first - sound coping, sealed top surface, and where appropriate a breathable system low down that lets the wall release moisture rather than trapping it. See damp proofing for how we treat the rising damp element.
Our Boundary Wall Painting Checklist
- Coping condition assessed and made good before anything else
- Chlorides washed off with fresh water on both faces
- Biological growth killed rather than just washed
- Blown plaster cut back and repaired, with steel treated where exposed
- Approved scheme colour confirmed in writing before paint is ordered
- Durable exterior system, upgraded on the seaward face
- Gates, palisades and fixings treated as metalwork with the correct primer
- Pavement and street frontage left clean - this is public-facing work
Frequently Asked Questions
Contact Painters Green Point today for a free boundary wall painting quote across Green Point and all Green Point suburbs.