Cost Guide
Cost of Plastering in Nigeria 2026: Walls, Rendering & Skimming
What plastering costs per square metre in Nigeria — internal, external, and the difference between plastering, rendering, and skimming. Let’s start with the most important part: the numbers. What you will likely pay: Internal plastering (labour only): ₦600 – ₦1,200 per m² Internal plastering (supply + apply): ₦1,200 – ₦2,200 per m² External rendering (supply + apply): ₦1,400 – ₦2,800 per m² Skimming / finish coat (labour only): ₦500 – ₦900 per m² Full 3-bedroom house plastering: ₦350,000 – ₦750,000
Plastering is one of those building works that people rarely think about until they see the result — and by then it is too late to fix easily. A badly plastered wall looks wrong under paint, no matter how good the paint is. Hollow sections, cracks, waves, and out-of-square corners are all signs of poor plastering — and they do not hide with a coat of emulsion.
Here is what plastering costs in Nigeria in 2026, what the different types involve, and what separates a good plasterer from one who will cost you more to fix later.
Types of Plastering and What Each Involves
• Scratch and float coat (base coat): The first layer applied to block or brick walls — a cement and sand mix applied roughly to build up thickness and provide a key for the finish coat. This coat is usually 10 to 15mm thick and is scratched (roughenedf) while wet to help the next coat bond.
• External rendering: Applied to external walls using a slightly richer cement mix for weather resistance. Often textured rather than smooth — either Tyrolean, rough dash, or a sand finish. External render must be properly cured and painted to protect it from seasonal rain and sun.
1.Comprehensive Price Breakdown
| Scope / Project Type | Low Rate | High Rate | Notes |
|---|---|---|---|
| Internal base coat + finish (supply + labour) | ₦1,500/m² | ₦2,200/m² | Full two-coat plaster system |
| Internal labour only (client supplies materials ₦600/m² | ₦1,200/m² | Cement and sand by the client | |
| External render (supply + labour) | ₦1,700/m² | ₦2,800/m² | Includes weather-resistant mix |
| Skim coat only over existing plaster | ₦500/m² | ₦900/m² | Labour only, thin finish coat |
| Ceiling plaster / POP base coat | ₦800/m² | ₦1,500/m² | More difficult than wall work |
| Repair patching (per area, minimum call-out) | ₦15,000 | ₦40,000 | Small area repairs |
| Materials only (cement + sharp sand, 3-bed) | ₦120,000 | ₦220,000 | Approximate material cost only |
2. What Does a 3-Bedroom House Plastering Job Cost
A 3-bedroom bungalow typically has approximately 350 to 450 square metres of wall surface to plaster — internal and external combined. At current Lagos rates:
Internal plastering (280m² @ ₦1,600/m² avg): ₦448,000
External rendering (160m² @ ₦2,000/m² avg): ₦320,000
Total supply and install estimate: ₦768,000
Labour-only (client supplies materials): ₦240,000 – ₦420,000
Materials only (cement, sand, admixtures): ₦150,000 – ₦250,000
3.What Determines Plastering Quality
• Mix ratio: The standard internal plaster mix is 1 part cement to 4 to 6 parts clean sharp sand. Too much cement causes shrinkage cracks. Too much sand produces a weak, friable surface.• Preparation: Blocks must be dampened before plastering in dry conditions. Dusty or greasy surfaces cause delamination — the plaster peels away from the wall.
• Curing: Fresh plaster must be protected from direct sun and rapid drying. Watering the surface two to three times a day for the first three days significantly reduces cracking.
• Thickness: Too thick in a single coat and the plaster slumps or cracks. Two thinner coats give a better result than one thick coat.
• Straightness: Screeds and rules are used to ensure the wall is flat and vertical. A plasterer who works by eye alone rarely produces a flat wall.
4. Material Requirement Estimation Guide (Per 100m²)
To avoid over-purchasing or material shortage, use this standard estimation guide for every 100 square metres of wall surface| Plaster Type | Cement Bags (50kg) | Sharp Sand (Tone) | Water / Admixtures |
|---|---|---|---|
| Internal Plastering (12mm thickness) | 12 – 15 Bags | 2.5 – 3 Tons | Clean water as needed |
| External Rendering (15mm thickness) | 15 – 18 Bags | 3 – 3.5 Tons | Waterproofing admixture recommended |
| Skimming / Gypsum Finish (per bag yield) | 4 – 6 Bags (POP/Gypsum | None | Bonding liquid recommended |
5. Pro-Tip Checklist for Inspecting Completed Plasterwork
• The Knock Test: Gently tap various areas of the dried wall with a wooden block. A hollow sound indicates delamination (the plaster has separated from the block) and must be broken out and redone.• The Light Test: Hold a flashlight or torch parallel/flush against the wall. This casts long shadows over any waves, ridges, or uneven trowel marks that would otherwise show up after painting.
• Plumb Check: Place a spirit level or straight-edge rule vertically against the finished wall. It should be perfectly straight, plumb, and without gaps exceeding 3mm.
6. Frequently Asked Questions
How much does plastering cost per square metre in Nigeria in 2026?Internal plastering in Nigeria costs between ₦1,500 and ₦2,200 per square metre for the supply and application of a two-coat system in 2026. Labour-only rates (where you supply cement and sand) run from ₦600 to ₦1,200 per square metre.
External rendering costs slightly more — ₦1,700 to ₦2,800 per square metre — because of the richer mix and weather-resistance requirements.
How long does plastering take for a 3-bedroom house in Nigeria?
A two-person plastering team working on a 3-bedroom bungalow typically completes internal plastering in two to three weeks. External rendering is usually done at the same time or shortly after.
The finish coat should not be applied until the base coat has cured for at least seven days — rushing this step causes the finish coat to crack.
Why do freshly plastered walls crack in Nigeria?
Cracking in fresh plaster is most commonly caused by: the mix being too rich in cement, insufficient curing after application, the base coat not being allowed to dry before the finish coat is applied, or movement in the underlying structure.
Fine hairline cracks are normal as plaster dries and can be filled before painting. Wide or pattern cracks indicate a problem with the mix or the curing process.
What is the difference between plastering and skimming in Nigeria?
Plastering refers to applying a full coat of cement-sand mortar to raw block or brick walls — building up the wall surface to a paintable finish.
Skimming refers to applying a thin finishing coat of fine plaster over an already-rendered surface to achieve a very smooth finish before painting. Skimming is used over gypsum board, old plaster, or as a top coat on cement render. It is thinner and more skill-intensive than standard plastering.
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