Cost of Painting a New House in Kenya

It is natural to expect a new house to be cheap to paint: there is no old paint to strip and no damage to repair. In practice, a new wall may require substantially more preparation than a sound repaint, and the painting budget for a new house is often higher, not lower.

This guide explains the full painting system on new plaster, why each step is there, and how much difference it makes to the budget.

The painting system on new plaster

On rough new plaster, a complete interior painting system usually follows this sequence:

1. Skimming or filler where required. Rough plaster is covered with a layer of wall filler to create a smooth, even surface. This is usually the biggest extra cost on a new wall. Wall Skimming Cost in Kenya explains when it is needed and how filler is estimated.
2. Sanding and preparation. The skimmed surface is sanded smooth and dusted down so the paint has a clean, even base.
3. Preparation coat. New plaster and filler are absorbent. A preparation coat (such as an undercoat) seals the surface and gives the finish coats an even base, so they cover properly.
4. Finish coats. Typically two coats of the chosen interior finish.

How it differs from a sound repaint

A wall that has already been painted and is in good condition has had its preparation done in the past. A new wall needs all of it now. How a whole painting budget fits together is explained in Cost of Painting a House in Kenya.

Smooth or rough: check before you budget

Not every new wall needs the same preparation. Some builders hand over walls that are already skimmed and smooth, ready for undercoat. Others leave the plaster rough. The difference matters:

• Already smooth: sanding, one preparation coat and two finish coats. The budget is much closer to a repaint.
• Rough: full skimming, sanding, one preparation coat and two finish coats.

Ask your builder or check the walls before you budget. If you are not sure, the FinishGrid estimator can give a range that covers both possibilities. To see how much preparation and finish paint new walls need, calculate the paint quantity.

Worked comparison: 150 m² of interior wall

These figures come from the FinishGrid estimator for the same 150 m² of interior wall surface. This is the area of the walls being painted, not the floor area of the home. Both assume an apartment, Standard finish level and one colour, with no ceilings, doors, trim or repairs.

Ranges are rounded outwards to the nearest KSh 100, so the parts may not add up exactly to the total. The planning figure is the middle of the range, rounded. These are worked examples, not average prices.

The difference comes from three places: filler for skimming, a preparation coat that a sound repaint does not need, and the extra labour for skimming, sanding and the preparation coat. Skimming is slow, careful work, and it happens before any paint goes on.

Other things to plan for on a new build

• Plaster must be ready. Fresh plaster and filler need to be dry before painting. Follow the product guidance and your builder's advice.
• Other trades. Painting usually comes near the end of a build. Fittings, electrics and plumbing work can mark finished walls, so plan for touch-ups.
• Scope beyond the walls. Ceilings, doors, frames, trim and exterior walls are separate items. List them so they are not forgotten in the budget.
• Budget early. Painting and finishing come late, when money is often tight. Knowing the likely cost early helps avoid a shortfall.

Frequently asked questions