Plaster and monolithic homes 路 Greater Auckland
Plaster House Painting Auckland, for Monolithic and Stucco Homes
Painting a plaster, stucco or monolithic house is a different job from painting weatherboard. The coating is part of the weatherproofing, cracks need the right repair, and any sign of a leak needs looking into before paint goes on. We paint plaster homes across Auckland, starting with a free site visit and a written fixed quote.
Why does painting a monolithic house need a different approach?
On a plaster house the paint is part of the weatherproofing, not just protection for the surface. On weatherboard, paint mainly protects the timber. On plaster, a coating that has worn thin, crazed or cracked can let water into the cladding itself.
You'll find monolithic cladding on many Auckland homes built from the 1990s to the early 2000s: a seamless plaster or texture-coated finish, often over fibre-cement sheet or polystyrene board, and sometimes solid plaster over mesh. Many had the cladding fixed straight to the framing with no drained cavity behind it, so water that gets in has few ways out.
Older solid plaster and stucco homes, with plaster over mesh or masonry, crack and weather in their own way. On all of them our job is the same: repair the plaster properly, use a coating that can move with it, and tell you honestly about anything paint cannot fix.
Can painting fix a leaky plaster home?
No. Painting maintains sound plaster cladding, but it cannot fix water already getting in behind it, and no paint makes a house weathertight on its own. A fresh coat over a leak can hide the evidence and trap moisture in the wall.
Many of the homes caught up in New Zealand's leaky building problems were monolithic homes from the 1990s and early 2000s, yet plenty from the same years have performed well. The warning signs matter more than the age:
- Swelling, bulging or soft patches in the plaster
- Staining or dark streaks, often below windows, at the base of walls or under balconies
- Cracks at junctions: around joinery, where walls meet balconies or roofs, and along sheet joints
- Mould, musty smells, or damp skirting boards and carpet near exterior walls
If we see any of these at the site visit, we will tell you plainly and recommend an independent building surveyor's assessment before any painting. A surveyor can test moisture inside the wall and say what repairs are needed. Once the cladding is sound, we can paint it.
How is exterior plaster crack repair done?
Exterior plaster cracks are repaired according to their size: hairline cracks are cleaned out, filled where needed and bridged by a flexible coating, while larger cracks get a mesh-and-plaster repair before any coating goes on.
Hairline cracks
Fine cracks are common on plaster, often from normal movement as the wall heats and cools. They still let water in once the coating has aged, so they are cleaned out and, where needed, raked and filled with a flexible filler that suits the plaster, then bridged by an elastomeric membrane coating.
Larger or reopening cracks
Wider cracks, or cracks that have opened again after filling, are raked or cut out and filled, then a strip of reinforcing mesh is bedded in plaster across them. The patch is re-textured and sealed before coating. The mesh spreads the movement, so the crack is less likely to come back.
On older homes, paint layers can contain lead and some old textured coatings can contain asbestos, so they should be tested before any sanding, raking or cutting.
We match the texture as closely as we can, but on some finishes a repair can show faintly in low, raking light. We tell you that before we start.
Cracks that point to something else
Cracks along backing-sheet joints, from window corners, or at junctions with flashings and joinery can signal movement or water getting in. We note them in the quote and, where there are other warning signs, recommend a surveyor looks first.
Which paint system suits a plaster or texture-coated house?
Usually a flexible elastomeric or membrane coating, over a sealer on repairs and bare or chalky areas. It stays flexible as the plaster moves and, at the right thickness, bridges fine cracks instead of splitting along them. Resene X-200 is one example of this type of system.
A membrane only works at the film thickness the manufacturer specifies, which means a heavier coat and much more product per square metre than standard exterior paint. Spreading it thinner than specified is an easy way to make a quote look cheaper, so our written quote names the sealer, the coating system and the number of coats. Some plaster systems set their own coating requirements, which we check where the system can be identified. See how to choose painters in Auckland for what else a quote should spell out.
We use Resene, Dulux and Wattyl systems. Product warranties are the manufacturer's, separate from our 10-year workmanship warranty, and confirmed with your quote.
What needs doing before a plaster house is painted?
A gentle wash, then a check of the sealant joints, flashings and ground clearances, which can each let water in whatever paint goes on top.
A gentle wash, never high pressure
Plaster is washed at low pressure with a suitable cleaner to kill mould and lift dirt and chalk, then rinsed. Auckland's humid climate means mould often builds up on shaded walls, so those faces get particular attention. A high-pressure blaster can force water into cracks and behind the cladding, and can damage the texture. Homes near the harbour or beach also need salt rinsed off; see coastal exterior painting.
Sealant joints
Flexible sealant often closes control joints in the plaster, and the gaps around windows, doors, pipes and meter boxes. Sun and weather harden it over time until it splits or pulls away, so failed sealant is cut out and replaced before coating.
Flashings
We look at the visible flashings over windows and doors and where a roof meets a wall, and at the tops of parapets and balustrades, a well-known weak point on monolithic homes. On many plaster homes much of a flashing is hidden behind the plaster, so we report what we can see. A missing or damaged flashing is building work, and we say so in writing rather than paint over it.
Ground clearances
Plaster that runs down into soil, bark, paving or decking can draw moisture up from below. We point out where it needs clearing, which is sometimes as simple as lowering a garden bed.
Joinery, fascias and trims are then prepared as on any exterior painting job. Our guide to exterior painting preparation covers those steps in more detail.
Can you paint a plaster house a dark colour?
Sometimes, but check your cladding's limits first. Dark colours absorb more of the sun's heat, so a dark wall runs hotter and the plaster and backing move more, which can mean more cracking. For that reason, many plaster system suppliers limit how dark a colour can go on some systems, often by setting a minimum light reflectance value (LRV).
Going darker than the system allows may affect the cladding supplier's warranty. Some paint manufacturers offer heat-reflective versions of darker colours, which may widen your choice. We check the rules for your paint system, and for your cladding where it can be identified, before you settle on a colour, and the colour and product go in the quote.
How much does it cost to paint a plaster house in Auckland?
A typical exterior repaint of a standard 3-bedroom Auckland home, plaster or otherwise, is $12,000 to $25,000+, with your written fixed quote after a free site visit setting the real price. Plaster usually takes less time to paint than weatherboard, but on a plaster house the repairs and the coating system move the price most.
| Job | Typical range | What moves the price |
|---|---|---|
| Exterior repaint, standard 3-bedroom home | $12,000 to $25,000+ | Crack repairs, sealant, the coating system, scaffold and access, and the existing coating's condition |
Estimates only. Your price is the written fixed quote after a free site visit.
On a plaster house, these push a quote up the range or beyond it:
- The number and size of cracks, and how many need a mesh-and-plaster repair
- Replacing failed sealant around joinery, penetrations and control joints
- A membrane system, which uses more product per square metre than a standard repaint
- Scaffold for two-storey walls or sloping sections, and access and parking on tight Auckland sites
See what painting costs in Auckland for how other jobs are priced.
Who organises painting for a plaster townhouse in a body corporate?
On many complexes the body corporate or its property manager organises exterior repaints, not each owner, so check who looks after the exterior before you get quotes. Plenty of Auckland's plaster homes from the 1990s and 2000s are townhouses and units like this, and there may be rules on colours and timing.
We work with body corporate committees and property managers as well as individual owners, with the same site visit and written fixed quote. See body corporate painting for how we handle multi-unit work.
How it works
How a plaster repaint works with us
- Free site visitWe look at the cladding, cracks, sealant, flashings and ground line, and tell you straight if anything points to moisture.
- Written fixed quoteRepairs, sealer, coating system and number of coats, all in writing.
- Gentle wash and repairsLow-pressure wash, crack repairs, re-texturing and new sealant where needed.
- Seal and coatSealer on repairs and bare areas, then the coating system at the thickness the manufacturer specifies.
- Walk-through and warrantyWe check the finished job with you, backed by our 10-year workmanship warranty.
Straight answers
Plaster house painting Auckland, FAQs
Need a quick answer? Call 0800 866 272 or request a quote.
Can you paint over cracks in a plaster house?
Not without preparing them first. Ordinary paint cannot bridge a crack that keeps moving, so it soon splits along the same line and water gets back in. Hairline cracks are cleaned, filled where needed and bridged with a membrane coating; wider ones need a mesh-and-plaster repair. Your quote lists which cracks need which repair, and how plaster crack repair is done explains the methods.
Will repainting stop my plaster house leaking?
No, repainting will not stop a leak. If you suspect one, get the order right: an independent building surveyor's assessment first, then any repairs the report calls for, and painting last. That way the new coating goes over repaired cladding rather than a problem still hidden in the wall. The leak warning signs are listed above.
What is an elastomeric or membrane coating?
A thick, flexible exterior coating that stretches as plaster moves and bridges fine cracks. It is typically applied as two heavy coats, over a sealer where the surface needs one, at the rate the manufacturer specifies: much more product per square metre than ordinary exterior paint.
Should a plaster house be water blasted before painting?
No, not with a high-pressure blaster. A cleaner is applied to kill mould and loosen dirt and chalk, stubborn spots are brushed, and the walls are rinsed gently. The plaster then has to dry before any filling or coating starts, which depends on the weather. See what needs doing before a plaster house is painted.
How do I know my plaster house needs repainting?
Rub the wall: chalky powder on your hand means the coating is wearing. Fading, fine crazing, hairline cracks, returning mould and split sealant are other signs. Repainting before water gets in is usually far cheaper than repairing damage after. See how often to repaint a house in Auckland.
Can a stucco or texture-coated house be spray painted?
Often. On large textured walls, airless spray can lay an even coat, usually back-rolled to work it into the texture. Wind, tight boundaries and detailed areas can mean roller and brush instead. See spray painting.
What warranty comes with a plaster repaint?
Our 10-year workmanship warranty. Product warranties are the manufacturer's and are confirmed with your quote. We are fully insured and our team is Site Safe trained.
Do you repair plaster inside the house too?
Yes. We do GIB stopping and interior plastering across greater Auckland. On a plaster home, staining or swelling inside near a window can mean a leak, so have it checked before anything is painted over.
Request Your Free Auckland Quote
Free, no-obligation site visit and a written fixed quote. We reply within two business days.
- Fully insured
- Site Safe trained
- 10-year workmanship warranty
- Free, no-obligation site visit