The Hidden Traps Inside Older Kenyan Homes#
Renovating an older bungalow in Lavington, an apartment in Parklands, or a family home in Nakuru is deeply rewarding. But older walls tell stories: layers of mystery paint applied over four decades, nicotine stains from former residents, brown water rings from an old roof leak fixed five years ago, and high-gloss oil enamel on walls that feels like glazed ceramic.
If you treat an old house like new construction—simply rolling fresh paint across the surface—disaster strikes fast. Stains bleed right through the fresh paint within 48 hours, new paint beads up and slides off old glossy oil trim, and thick, brittle existing layers crack under the tension of the new paint.
Repainting an old house is essentially forensic restoration.
Phase 1: Testing and De-Glossing Existing Coatings#
Before buying paint, you must know what is currently on the walls:
- The Rub Test (Oil vs Water): Soak a rag in methylated spirits (denatured alcohol) and rub it firmly against the wall for 30 seconds. If the paint softens or rubs off on the rag, it is water-based acrylic/PVA emulsion. If it remains rock-hard and shiny, it is oil-based alkyd gloss.
- De-Glossing the Surface: Water-based paint cannot grip smooth, shiny oil paint. If you have glossy walls or trim, you must sand the entire surface with 120-grit sandpaper to scuff the shine, creating a microscopic mechanical key. Alternatively, apply an universal bonding primer.
Phase 2: Treating Chalking and Powdery Plaster#
Exterior walls that have weathered 10 years of Kenyan sun often develop severe chalking. Rub your dry palm against the wall: if a thick powder covers your skin like flour, the paint resin has broken down under UV radiation.
Applying paint directly onto this powder ensures instant peeling. The exterior must be pressure-washed with clean water to remove the bulk of the loose chalk. Once dry, spray or roll a coat of penetrating solvent-based bonding liquid. This thin resin soaks deep into the chalky residue, gluing the loose particles together into a hard, sound substrate.
Phase 3: The Secret to Stopping Bleed-Through Stains#
One of the most common complaints in renovation is stain bleed-through: you apply three coats of bright white emulsion over an old brown water leak mark on the ceiling, and the next morning the brown mark reappears just as bright as before.
Why? Because water-based stains are soluble in water! When you roll wet waterborne paint over them, the stain dissolves into the wet paint and migrates to the surface as it dries.
To kill stains permanently, you must seal them with an insoluble barrier: an oil-based stain-blocking primer or shellac sealer. The stain cannot dissolve in solvent or shellac. Once dry (typically 2 to 4 hours), you can paint over it with any water-based emulsion without a trace of bleed-through.
Phase 4: Colour Transformation and Re-Finishing#
Older homes often feature dated, intense colours: dark mission brown woodwork, mustard yellow hallways, or bright teal bedrooms. Transitioning from dark vintage shades to airy, modern neutrals requires a high-opacity undercoat tinted towards your target topcoat colour.
Finish with two coats of washable, modern architectural emulsion from our Interior Paints collection to bring light, space, and fresh energy into your renovated home.
