Plastering & Skimming Contractors in Johannesburg
Interior and exterior plastering services
Professional Plastering Services
Sinqobile Construction provides professional plastering and skimming services across Johannesburg and Gauteng. Over 15 years our plasterers have finished hundreds of residential and commercial projects — from new-build plaster on brick walls to skim-coating renovated surfaces for a smooth, paint-ready finish. Plastering in Johannesburg costs R80–R150 per square metre for standard interior and exterior work in 2026, while skimming (a thin finishing coat) costs R40–R110/m². Proper plastering is the bridge between brickwork and the final painted surface — if it cracks, bulges, or debonds, no amount of paint will hide it. We use tested plaster mixes with the correct sand-to-cement ratios, apply in the right thickness (typically 12–15 mm for walls), and cure properly to prevent shrinkage cracking. Our team handles everything from rough-cast exterior render to glass-smooth interior skim finishes.
Service Statistics
Wall Plastering Service
Wall Plastering Service
Our Plastering Services
Interior Wall Plastering
Sand-cement plaster on new brick or block walls, applied to 12–15 mm thickness with a smooth float finish ready for painting. We ensure walls are plumb and square, corners are crisp, and window/door reveals are straight. Costs R80–R150/m².
Skim Coating
Thin-layer finishing (2–3 mm) applied over existing plaster or plasterboard to create a smooth, paint-ready surface. Ideal for renovations where walls are uneven but structurally sound. Skimming costs R40–R110/m².
Exterior Rendering
Weather-resistant exterior plaster finishes including smooth render, textured finishes, and tyrolean (rough-cast). We use waterproof additives and fibre mesh over expansion joints to prevent cracking.
Ceiling Plastering & Repairs
New ceiling plaster on rhinoboard/gypsum board, as well as crack repairs, water-damage patches, and cornice installation. We match existing ceiling textures for seamless repairs.
Plaster Repairs & Crack Fixing
Cracked, hollow, or debonded plaster cut out and replaced. We diagnose the cause (structural movement, damp, poor original mix) and fix both the plaster and the underlying issue.
Plastering Cost Guide — Johannesburg 2026
Plastering costs depend on surface condition, height/accessibility, and finish quality. Scaffolding is additional for multi-storey work. All quotes include surface preparation, materials, labour, and clean-up.
| Service | Price Range |
|---|---|
| Interior wall plastering (standard) | R80 – R150 /m² |
| Skim coating (smooth finish) | R40 – R110 /m² |
| Exterior rendering | R100 – R180 /m² |
| Ceiling plastering (new) | R90 – R160 /m² |
| Plaster repair / patching | R120 – R250 /m² |
| Cornice installation (per lin. m) | R45 – R120 /m |
Our Plastering Process
We follow a proven process to ensure quality results every time
Surface Assessment
We inspect walls for plumb, level, and surface condition, then advise on the plastering method and thickness required.
Preparation
Walls are dampened, PVA bonding applied if needed, corner beads set, and expansion joints marked. We mix plaster to the correct ratio on-site.
Application
Plaster is applied in one or two coats to the specified thickness, ruled straight, and floated to the required finish. Skim coats are applied after the base coat has cured.
Curing & Handover
Plaster is kept moist for 3–7 days to prevent shrinkage cracking. We inspect the finish before handover and guarantee our workmanship.
Frequently Asked Questions — Plastering
How much does plastering cost in Johannesburg in 2026?
Standard interior plastering in Johannesburg costs R80–R150 per square metre in 2026, including materials and labour. Skim coating is cheaper at R40–R110/m². Exterior rendering costs R100–R180/m². These prices vary based on surface condition, height, and finish quality. We provide free on-site quotes.
What is the difference between plastering and skimming?
Plastering is a thicker application (12–15 mm) applied directly to bare brick or block to create a flat, even surface. Skimming is a thin coat (2–3 mm) applied over existing plaster or plasterboard to create a smooth finish. Plastering is needed on new builds or where old plaster has been removed. Skimming is used in renovations where walls are uneven but the existing plaster is still bonded and sound.
Why does plaster crack after application?
The most common causes are: too-rapid drying (not curing properly), incorrect sand-to-cement ratio (too much cement causes shrinkage), plaster applied too thick in a single coat (over 15 mm should be done in two coats), and movement in the underlying structure. We control all these factors by using tested mix ratios, applying in correct thicknesses, and curing for 3–7 days.
How long before I can paint new plaster?
New plaster must cure for at least 4–6 weeks before painting. During this time, moisture evaporates and the plaster reaches its final hardness. Painting too early traps moisture and causes the paint to peel, bubble, or develop white salt deposits (efflorescence). We advise clients on the curing timeline and recommend a plaster primer (such as Dulux Plaster Primer) before applying topcoats.
Can you match existing plaster textures for repairs?
Yes, our plasterers are experienced in matching existing textures — smooth float, sponge finish, rough-cast, and textured renders. For large repair areas, we feather the edges so the patch blends seamlessly with the surrounding surface. After painting, a well-matched plaster repair should be invisible.
Recent Plastering Projects
See examples of our quality plastering work
Wall Plastering Service
Professional wall plastering service with smooth finish and quality materials.
Wall Plastering Service
Professional wall plastering with smooth finish and quality materials.
Ready for Your Plastering Project?
Contact Sinqobile Construction today for a free consultation and quote
Last updated: April 2026