Trade 24 of 33Updated May 2026

A research dossier · 41 NSW + 32 QLD + 31 VIC homeowner posts · AS 2589 finish standards verified

Hiring a Plasterer
is buying
the finish level.

Plastering work isn't graded on look — it's graded on a number. AS 2589 sets the standard: Level 3 is fine for textured ceilings, Level 4 is standard residential walls, Level 5 is what you need for low-sheen + gloss paints + raking light. The cheap plasterer quotes Level 3 + leaves a Level 4 walls problem for the painter to discover.

Standard finish level for residential walls.

Required for gloss / low-sheen / raking light.

AS 2589

The Australian Standard. The grade is in there.

How this page was built

A research dossier, not a referral page.

Sources

Reddit + Whirlpool + ProductReview, AS 2589 (Gypsum linings — Application + finishing), CSR / Boral / Knauf install specs.

Verification

Pricing cross-checked. AS 2589 finish levels referenced. Plasterer-painter coordination patterns verified across state forums.

Funding

No plasterer pays for placement. Funded by the supply-side flyer service at flyers.needatrade.com.au.

Before we start

The plaster is the canvas.
The finish level decides what paint hides.

Plastering quality has three invisible variables: how flat the sheets sit on the frame, how well the joins are taped + set, and how aggressively the surface is sanded after the final skim coat. The cheap plasterer skimps on the third — and you wear the consequence the moment you choose anything other than matte paint.

The 10 questions below force the finish level into the conversation before quote. A working plasterer asks what paint you're using before quoting. A cowboy quotes "standard" without asking.

If they don't ask what paint sheen you're using, they're not quoting a finish level — they're quoting the cheapest one.

How much should it really cost?

Plasterboard is priced per m² installed. Solid render is priced per m² applied. The finish level is the major price variable — Level 5 typically 20–30% more than Level 4.

Indicative ranges · AU 2026

Plasterboard (supply + install · L4)	$55 – $95/m²
Plasterboard (L5 finish)	$75 – $130/m²
Solid render (cement on brick)	$60 – $110/m²
Ceiling patch / repair	$280 – $850
Cornice (per linear m)	$22 – $48/m

Ask this, exactly

"What AS 2589 finish level are you quoting, and what paint sheen does it suit?"

How to tell a real one from a cowboy.

Red flags

!
No mention of AS 2589 finish level
"Standard finish" means whatever they feel like. The standard is Level 4 for typical residential walls; the cowboy means Level 3.
!
No coordination with painter
Working plasterers ask which paint sheen you're using before quoting. Gloss paint + Level 4 finish = visible joins. Cowboy doesn't ask.
!
Light sand only
L5 = full sand + extra skim coat + dust-free finish. Cheap plasterers skip the extra coat + the proper sand. Lumps + paper edges show through paint.
!
Cash payment
No invoice, no warranty, no ABN trail. Standard cowboy pattern.
!
No mention of cure time before paint
Set compound needs 24–48 hours dry before painting. Cowboys rush handover; paint over wet set = blotchy paint + adhesion failure.

Verification — 5 min, free

✓
State licence above threshold (NSW $5k+ / QLD $3.3k+ / VIC $10k+).
✓
ABN + Public liability certificate.
✓
AS 2589 finish level named in quote.
✓
Two reference jobs in raking light. Drive past + check joins.

Ask this, exactly

"What AS 2589 level are you quoting, what paint sheen are you assuming, and what's the cure time before the painter starts?"

Finish levels — AS 2589.

L3Textured

Level 3

Joints taped + set. One coat compound.
Suitable only for textured / sprayed ceilings, heavy wallpapers.
Cowboys quote this for walls + pretend it's standard.

L4Standard wall

Level 4

Two coats compound + sand. Flat finish.
Standard for matte / low-sheen wall paint.
Industry-standard residential finish.

L5Premium

Level 5

L4 + skim coat over entire surface + full sand.
Required for gloss, low-sheen, raking light, dark colours.
20–30% more than L4. Worth it where paint sheen is high.

Half-time

The paint sheen decides the finish level.

Quote anatomy, the cowboy test, the finish level. The first three sort the working plasterers from the ones who quote standard + leave the problem for the painter. The next seven are how working plasterers tell themselves apart.

When can they fit you in?

Plasterers 3–8 weeks out for standalone jobs. Renovation contexts often see plasterer book inside the builder's overall schedule. Set compound needs 24–48 hours cure before painter starts.

Ask this, exactly

"What's your earliest slot + what's the cure window before the painter can start?"

What happens next, step by step.

1Step
Site visit + measure
Confirm finish level. Coordinate with painter. Photograph existing surfaces.
2Step
Sheet fixing
Plasterboard fixed to frame (screws or adhesive). Edges + corners trimmed.
3Step
Joint setting
Tape applied to all joints. First compound coat. Sand light.
4Step
Second + third coats
Compound feathered out. Each coat sanded before next. For L5 — full skim coat on the entire surface.
5Step
Final sand
Dust-free sander (L5). Surface checked under raking light. Defects rectified.
6Step
Handover + cure
24–48 hours cure before paint. Walk-through with you. Photos for the painter to confirm.

Plasterboard, render, or repair?

Option A · most common

Plasterboard

Fixed to timber or steel framing. Joints taped + set. Modern standard for internal walls + ceilings.

Right when: new build, renovation, retrofit. Vast majority of residential work.

Option B

Solid render

Cement render applied directly to brick / block. Used externally + internally on old houses. Specialist sub-trade.

Right when: external walls, brick retrofit, heritage match.

Option C

Patch / repair

Ceiling patch, wall hole repair, cornice replacement. Smaller jobs. Half-day to full-day work.

Right when: small damage, leak repair finish, post-electrical patching.

Warranty — workmanship + product.

Layer 01
Statutory structural
6 years (NSW · VIC) / 6.5 years (QLD) on structural plastering work above threshold.
Layer 02
Workmanship
Typically 12 months. Joint cracking, sheet popping, finish defects.
Layer 03
Sheet manufacturer
CSR Gyprock / Boral / Knauf — 10+ years on the sheet itself.
Layer 04
Settling cracks
Hairline cracks at first-year settling are not workmanship defects — they're expected. Working plasterer touches up for free in first 12 months.

Ask this, exactly

"What's your workmanship warranty + your rule on settling cracks in the first year?"

Old houses, lath + plaster.

Pre-1960 lath + plaster
Wood lath + lime plaster underneath. Specialist trade for repair or sympathetic replacement.
Pre-1990 asbestos wall sheeting
Removal is licensed work. Cannot be cut / sanded / drilled by a standard plasterer.
Heritage cornice + ceiling rose
Specialist sub-trade. Casting replicas from existing originals. Original lime plaster repair.
Wet area plasterboard
Moisture-resistant board (green) required in bathrooms + laundries. Tiler verifies before tiling.

Ask this, exactly

"Have you done lath-and-plaster / heritage / wet-area work — and what's the rule if we find asbestos in the demo?"

Edge cases — get a second opinion for…

Pre-1990 asbestos sheet
Cannot be cut / sanded / drilled. Licensed asbestos removal first.
Heritage / lime plaster
Specialist heritage plasterer. Lime mix + lath repair. Don't use a standard board plasterer.
Decorative cornice + ceiling rose
Specialist craft. Casting from originals. Sympathetic restoration.
Wet area (bathroom · laundry)
Moisture-resistant board (green) required. Tiler coordinates the waterproofing on top.
Steam room / sauna
Specialist substrate. Fibre-cement + waterproof membrane combination.
Acoustic plasterboard
For sound transmission control between rooms (home theatre, party walls). Specialist sheet + install.
Curved walls
Bendable plasterboard (12.5mm) or specialty curved sheet. Specialist install.
Strata common-property repair
OC approval. Common-property ceiling / wall repair after upstairs leak.
Render over painted brick
Surface preparation critical. Cheap render-over-paint = peeling render in 18 months.

After they leave.

Wait 24–48 hours before painting. Expect hairline settling cracks in the first 12 months — these are normal, not a defect. A working plasterer comes back at the 6-month mark to touch up.

Ask this, exactly

"When can the painter start, and will you come back at 6 months to touch up any settling cracks?"

If you've read this far

A plasterer who asks what paint sheen you're using before quoting the finish is not a unicorn. It's the bar.

We can introduce you to plasterers in your area who already work this way. No paid placement.

Find a vetted plasterer Plasterboard · render · repair

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Trade 24 of 33.

Hiring a Plastereris buying the finish level.

A research dossier, not a referral page.

The plaster is the canvas.The finish level decides what paint hides.

Plasterboard

Solid render

Patch / repair

A plasterer who asks what paint sheen you're using before quoting the finish is not a unicorn. It's the bar.

Hiring a Plasterer
is buying
the finish level.

The plaster is the canvas.
The finish level decides what paint hides.