Expert Painters

Professional Plastering Services in Melbourne: Complete Guide to Choosing the Best Plastering Contractor for Your Home or Business

01 Mar

Plastering is the trade that decides how a paint job looks. Paint is a thin film; it follows whatever is underneath it rather than hiding it. A wall with unfilled cracks, a sunken patch or a wavy skim coat will look exactly like that once it is painted, and often worse, because fresh paint reflects light evenly and shows every undulation.

This guide covers the plastering work Melbourne homes and businesses actually need, what the common problems mean, how repairs are done properly, what drives the cost, and how to tell whether a crack is cosmetic or worth worrying about.

Why plastering comes before painting

Most disappointing paint jobs are plastering failures. The paint is fine. The surface was not ready.

There are three things plastering does that paint cannot:

It makes the surface flat. Filling, sanding and skim coating remove the dents, patches and ridges that raking light will otherwise highlight. This matters most on long walls, hallways and anywhere a window throws light along the surface rather than at it.

It makes the surface sound. Loose, drummy or water-damaged plaster will keep moving after it is painted. Coating over it buys a few months.

It makes the surface uniform. Patched areas absorb paint differently from the surrounding wall, which produces the patchy, uneven sheen painters call flashing. Spot-priming repairs is what prevents it, and it only works if the repair itself was done properly.

If you are painting new plasterboard, sealing comes first and is not optional — see painting new plasterboard.

Types of plastering work

Crack repair

Not all cracks are equal. Hairline cracks in corners and above doorways are usually normal settlement and are filled, taped where needed, sanded and primed. Wider cracks, cracks that reopen after repair, and diagonal or stair-step cracks can indicate structural movement, which needs investigating before cosmetic repair. Our guide to plaster cracks covers how to tell the difference.

Hole and dent patching

Door handles through walls, removed fixtures, old shelving, television brackets. Small holes are filled directly; anything larger than a fist generally needs a backing board or plasterboard patch cut in, taped and set in three coats rather than filled in one go.

Water damage repair

Water-damaged plaster has to be removed, not dried and painted. Affected board is cut out, the cause resolved, and new board installed and set. Ceiling stains in particular bleed back through paint unless the source is fixed and the area sealed with a stain-blocking primer — see ceiling water stains.

Skim coating

A thin coat of compound across an entire wall or ceiling to produce one continuous flat surface. This is the answer when a wall has many patches, an uneven existing finish, or old wallpaper texture. It is also how a heavily textured ceiling can be flattened without stripping it — covered in popcorn and textured ceiling removal.

Ceiling repairs

Ceilings crack, sag and stain more readily than walls because they carry their own weight against gravity, plus whatever is in the roof space. Sagging between joists usually means failed fixings or moisture, and a sagging ceiling is a safety issue rather than a cosmetic one. See ceiling repairs in Melbourne.

Cornice repair and replacement

Cornice separates from walls and ceilings as a building moves, cracks at joins, and gets damaged during renovations. Ornate cornice in period homes can often be matched or run to profile rather than replaced with a modern cove. See cornice repair and replacement.

Plasterboard installation

New sheeting for extensions, renovations, removed walls and converted spaces, including setting joints to a flush finish. Specialist boards are available where needed: moisture-resistant for bathrooms and laundries, fire-rated where required by regulation, and acoustic board for bedrooms, home offices and shared walls in townhouses and apartments.

Solid plaster versus plasterboard

Many older Melbourne homes have solid plaster over lath or masonry rather than modern plasterboard. The two behave differently and are repaired differently, and using the wrong method on solid plaster causes the repair to fail. If your home is pre-war, solid plaster vs plasterboard is worth reading before engaging anyone.

What common plaster problems actually mean

What you seeUsual causeConcern level
Hairline cracks at corners of doors and windowsNormal settlement and seasonal movementCosmetic
Fine cracking across a ceilingAge, movement, old jointingCosmetic
Diagonal or stair-step cracksPossible structural movement or foundation issueInvestigate first
Cracks that reopen after repairOngoing movementInvestigate first
Ceiling sagging between joistsFailed fixings, moisture, or weight aboveAddress promptly
Brown or yellow ceiling stainActive or past water ingressFind the source first
Small round bumps in linesNail or screw pops from timber movementCosmetic
Cornice pulling away at the joinBuilding movement, or failed adhesiveCosmetic to moderate
Bubbling or soft plaster near skirtingRising damp or a plumbing leakAddress promptly
Drummy, hollow-sounding solid plasterPlaster has lost its key to the substrateNeeds removal and replacement

The distinction that matters most: cosmetic damage can be repaired directly, but damage caused by moisture or movement will come back unless the cause is dealt with first. Any plasterer who patches a water stain without asking where the water came from is selling you the same repair twice.

How a proper repair is done

  1. Identify the cause. Moisture, movement, impact or age. This determines whether a cosmetic repair will hold.
  2. Remove what is unsound. Loose, drummy or water-damaged material is cut back to solid plaster rather than filled over.
  3. Reinforce where needed. Joint tape or mesh across cracks and joins, which stops them reappearing through the repair.
  4. Build up in coats. Compound is applied in multiple thin coats with drying time between, not one thick application. A thick single coat shrinks, sinks and cracks.
  5. Sand flat. Feathered well beyond the repair so the edges disappear rather than forming a visible halo.
  6. Prime the repair. Bare compound is far more absorbent than the surrounding painted wall. Without spot-priming, the repair shows through the finished paint as a dull patch.

Step six is the one most often skipped, and it is the reason repairs stay visible after painting.

Drying times and why they matter

Jointing compound cures by drying, and that is driven by temperature and humidity. In a Melbourne winter, a three-coat repair in an unheated room can take noticeably longer between coats than the same work in spring.

Rushing this causes real problems: compound painted before it is fully dry will shrink back and show the repair outline, and may crack. A plasterer who allows drying time between coats is not being slow; the alternative is a repair that fails visibly within weeks.

As a rough guide, allow a day or more per coat in cold or humid conditions, and expect a multi-coat repair to span several days before it is ready for paint.

Best time of year for plastering in Melbourne

Interior plastering can be done year-round, but conditions change how it runs.

  • Spring and autumn are ideal: mild temperatures, moderate humidity, predictable drying.
  • Summer is fast-drying, which is mostly an advantage, though in extreme heat compound can dry too quickly at the surface and crack.
  • Winter is workable but slower. Cold, damp rooms extend drying times between coats, and the job needs that time built into the schedule rather than compressed.

If you are planning plastering and painting together before a specific date, winter work needs more contingency than the same job in October.

Materials, briefly

  • Standard plasterboard for general walls and ceilings.
  • Moisture-resistant board for bathrooms, laundries and kitchens.
  • Fire-rated board where building regulations require it, commonly on garage walls adjoining living areas and in multi-residential construction.
  • Acoustic board and insulation for bedrooms, home offices and shared walls.
  • Setting compounds for strength and build on joints and repairs; topping compounds for the final smooth coat, which sand more easily.
  • Cornice cement for fixing and finishing cornice.

The practical point is that these are not interchangeable. Using standard board in a shower surround or a topping compound where a setting compound belongs produces a repair that fails early.

What plastering costs in Melbourne

Plastering is quoted on the work, not by the square metre alone, because two walls of identical size can need very different amounts of labour. The variables:

  • Extent of damage. A dozen small filled holes is a different job from a wall needing a full skim coat.
  • Access and height. Ceilings are slower than walls. Stairwells and double-height voids need scaffolding or platforms.
  • Substrate type. Repairs to solid plaster in a period home take longer and need more skill than patching modern plasterboard.
  • Number of coats and drying time. A three-coat repair occupies the room across several days even though the hands-on hours are modest.
  • Cornice work. Matching an ornate period profile costs considerably more than installing standard cove.
  • Removal and disposal. Stripping damaged plaster, especially solid plaster, generates heavy waste.
  • Making good. Protection of floors and furniture, and clean-up, which on plastering is substantial because the dust travels.

For a small repair, most of the cost is attendance rather than materials, which is why it is usually more economical to have several small repairs done in one visit than one at a time.

Anyone quoting plastering without seeing the walls is guessing, particularly in older homes where what is behind the surface is unknown until it is opened up.

How long plastering takes

JobTypical duration
Small crack and hole repairs, one roomHalf a day, plus drying
Full room re-skim2–4 days including drying
Ceiling repair, single room1–3 days
Cornice replacement, one room1–2 days
Plasterboard to a new extension1–2 weeks
Whole-house re-skim2–4 weeks

These include drying time between coats, which is most of the elapsed duration on small jobs. Painting follows afterwards, not alongside.

Commercial plastering

Commercial work runs on the same principles with different constraints: the space is usually in use, dust control matters more, and work is often scheduled after hours or over weekends.

Typical commercial plastering covers partition walls in office fitouts, repairing damage in corridors and lift lobbies, suspended and set ceilings, fire-rated and acoustic separation between tenancies, and making good before a lease ends. It is frequently sequenced with painting as one programme, which avoids the handover gap where damage appears between trades. See our commercial painting service for how that is scheduled.

Choosing a plasterer

  1. Ask what they think caused the damage. A plasterer who diagnoses before quoting is worth more than one who simply prices the patch.
  2. Check they work on your type of construction. Solid plaster in a period home is a different skill from modern plasterboard.
  3. Confirm insurance. Public liability, by certificate.
  4. Ask how many coats and what drying time they allow. A one-visit, one-coat answer on a significant repair is a warning.
  5. Ask who primes the repairs. Repairs must be spot-primed before painting. Establish whether that sits with the plasterer or the painter, so it does not fall between them.
  6. Ask about dust control and clean-up. Sanding compound produces fine dust that travels through a whole house.
  7. Get it in writing. Scope, surfaces, number of coats, timeline and what happens if more damage is found once work starts.

If you are comparing local options, plastering near me covers what to look for.

Plastering with Expert Painting and Renovation

Expert Painting and Renovation is a family-run, Aussie-local company based in Richmond with more than 9 years of experience across Melbourne homes and businesses. We handle plastering and painting as one trade rather than two, which removes the most common problem on this work: a repair that is technically finished but was never primed, and shows through the paint.

Our plastering service covers crack and hole repair, water damage, skim coating, ceiling repairs, cornice work and plasterboard installation. We also offer rendering for exterior wall finishes, interior painting once surfaces are ready, and decorative finishes such as Venetian plaster where a wall calls for something beyond paint. Richmond and inner-east customers can also see our Richmond plasterers page.

See examples in our portfolio, or contact us for a quote.

Frequently asked questions

Do I need plastering before painting? If the walls have cracks, holes, patches, water damage or an uneven surface, yes. Paint follows the surface rather than hiding it. If the walls are already sound and flat, filling and sanding by the painter may be enough.

How much does plastering cost in Melbourne? It depends on the extent of damage, access, substrate and how many coats are needed. On small repairs most of the cost is attendance, so grouping jobs into one visit is more economical than booking them separately.

Are cracks in my walls serious? Hairline cracks at door and window corners are usually normal settlement. Diagonal or stair-step cracks, cracks wider than a few millimetres, and cracks that reopen after repair warrant investigation before cosmetic repair.

What is skim coating? A thin coat of compound applied across a whole wall or ceiling to produce one continuous flat surface. It is used where there are many patches, an uneven existing finish, or texture that needs flattening.

How long before I can paint new plaster? Repairs must be fully dry, which takes longer in cold or humid conditions. New plasterboard and setting compound need sealing with an appropriate primer before top coats. Painting too early causes shrinkage, visible repair outlines and sometimes cracking.

Can you fix a sagging ceiling? Yes, but the cause has to be identified first. Sagging usually indicates failed fixings, moisture, or weight in the roof space. It is a safety issue rather than a cosmetic one and should be looked at promptly.

Do you do plastering without painting? Yes. We also do both together, which is generally the better option, because it keeps responsibility for the finished surface in one place.

About Expert Painting & Renovation

Expert Painting and Renovation is an Aussie-local, family-run company based in Richmond, Melbourne, with more than 9 years of experience in residential and commercial painting and renovation. Our specialists deliver premium workmanship, timely service and durable finishes designed for Melbourne homes.

Whether you need maintenance advice, a single-room refresh or a full home makeover, our team is just a call away.

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