There is one truth that every professional painter knows and every property owner eventually learns: the quality of a paint job is determined not by the paint itself, but by the preparation that happens before a single drop of paint touches the wall.

A beautiful, long-lasting paint finish begins with properly prepared surfaces. Skip the preparation – or rush through it – and even the most expensive paint will peel, bubble, crack, and fail within months. Do it right, and a quality paint job will look stunning and last for years.

At Bestcare Handyman, surface preparation and finishing is not an afterthought – it is the foundation of everything we do. Our dedicated surface preparation and finishing services in Nairobi cover every aspect of getting walls, ceilings, floors, and other surfaces into perfect condition before painting – and delivering the flawless final finish that makes a property look its very best.

Whether you are dealing with cracked plaster, peeling old paint, damaged drywall, rough uneven walls, or simply a surface that needs the right preparation to accept and hold a new coat of paint – our surface preparation specialists have the skills, tools, and materials to fix it properly.

📞 +254 709 004 600 | ✉️ info@bestcare.co.ke

Why Surface Preparation Is the Most Important Part of Any Paint Job

Ask any experienced painter what separates a paint job that lasts ten years from one that starts deteriorating within six months – and the answer is always the same: preparation.

Here is why proper surface preparation matters so much:

Paint adhesion depends entirely on the surface. Paint bonds to surfaces through a combination of mechanical adhesion (anchoring into surface pores and texture) and chemical adhesion (bonding between the paint binder and the substrate). If the surface is dirty, greasy, smooth, or unstable – the paint simply cannot grip it. The result is peeling, flaking, and failure.

Imperfections show through paint. Paint does not hide cracks, holes, bumps, or rough patches – it highlights them. A thin coat of paint over an unrepaired crack will show that crack clearly, and within weeks the crack will reappear through the new paint as the substrate moves. Proper filling, repair, and sanding eliminates these imperfections before they become visible problems.

Old paint affects new paint. Existing paint that is peeling, flaking, chalking, or poorly bonded will take the new paint with it when it fails. New paint applied over unstable old paint is wasted – it will fail along with the layer beneath it. Proper preparation includes assessing and addressing the existing paint condition before any new coating is applied.

Moisture and contamination cause premature failure. Grease, oils, mould, efflorescence, and moisture in the substrate will all cause paint failure. Proper surface preparation identifies and addresses these issues before painting – ensuring the new coating bonds properly and performs as intended.

At Bestcare Handyman, we never skip or rush preparation. Every surface preparation project is carried out thoroughly, methodically, and to a professional standard – because we know that the success of the entire paint job depends on it.

Our Surface Preparation & Finishing Services in Nairobi.

Wall Preparation Services.

Walls are the most commonly painted surfaces in any property – and they are also among the most likely to need preparation before painting. Over time, walls accumulate dirt, grease, mould, peeling paint, holes, cracks, and uneven patches that all need to be addressed before a new coat of paint can be applied effectively.

Our comprehensive wall preparation services cover every aspect of getting your walls ready for painting – from initial assessment and cleaning right through to priming and handover to the painting team.

Our wall preparation process includes:

Initial wall assessment – inspecting all wall surfaces for cracks, holes, moisture damage, mould, peeling paint, staining, and structural movement.
Removal of loose and flaking paint – scraping and brushing away all unstable existing paint that would undermine the new finish.
Thorough cleaning – washing walls with sugar soap or specialist cleaning solutions to remove all dirt, grease, cooking deposits, nicotine staining, and other surface contaminants-
Mould treatment – applying fungicidal treatments to walls affected by mould or mildew growth before filling or painting.
Efflorescence removal – treating and removing salt deposits (efflorescence) from masonry and plaster walls that indicate moisture movement through the substrate.
Surface profiling – roughening excessively smooth surfaces (gloss paint, tiles, glass) to create a mechanical key for the new paint.
Masking and protection – protecting floors, windows, fittings, and adjacent surfaces with dust sheets, plastic sheeting, and masking tape before work begins.
Primer application – applying the correct primer for the surface type – sealer primers for porous surfaces, adhesion primers for smooth or previously painted surfaces, stain-blocking primers for stained or tannin-rich substrates, and alkali-resistant primers for new plaster and masonry.

Well-prepared walls accept paint evenly, show a smoother finish, and hold the new paint for significantly longer than unprepared surfaces.

Surface Sanding and Priming.

Surface sanding and priming is one of the most critical – and most frequently skipped – steps in professional painting preparation. It is also one of the steps that makes the biggest difference to the final result.

Sanding serves multiple purposes in surface preparation:

Smoothing rough surfaces – removing brush marks, roller texture, drips, and rough patches from previously painted surfaces.
De-glossing – scuff-sanding glossy or semi-gloss surfaces to break the sheen and create a mechanical key for new paint.
Feathering repairs – blending filled areas seamlessly with surrounding surfaces so repairs are invisible under the new paint.
Removing surface contamination – lightly sanding away surface rust, chalking paint, and other surface deposits.

Priming is the essential bridge between the prepared surface and the new paint. The right primer for the right surface ensures:

Maximum paint adhesion – the new paint bonds firmly and does not peel.
Even porosity – porous and patchy surfaces absorb paint evenly, preventing blotchy, uneven coverage.
Stain blocking – preventing old stains, tannins, and discolouration from bleeding through the new paint.
Improved topcoat performance – primers allow the topcoat to go on more smoothly and provide better hiding power with fewer coats.

Our surface sanding and priming services cover all surface types:

Interior plaster walls and ceilings – fine sanding and appropriate interior primer.
Exterior masonry and render – preparation and masonry primer or stabilising solution.
Previously painted surfaces – de-glossing, sanding, and adhesion primer application.
New plaster – allowing correct drying time and applying alkali-resistant primer before painting.
Timber surfaces – sanding with the grain and applying knotting compound and wood primer.
Metal surfaces – rust removal, grinding, and anti-corrosion primer application.
Gypsum board and drywall – skim coat application and drywall primer or sealer.
Concrete floors – grinding and epoxy primer application ahead of floor coatings.

Crack Filling and Repair.

Cracks in walls and ceilings are one of the most common surface defects in Nairobi properties – caused by building settlement, thermal movement, moisture changes, structural loading, and the natural aging of plaster and render. Left unrepaired, cracks continue to grow, allow moisture penetration, and show through any paint applied over them.

Proper crack filling and repair requires more than pushing filler into a crack and sanding it flat. It requires understanding the cause and nature of the crack, selecting the right repair material, and applying it in a way that bridges the crack permanently – not just superficially.

At Bestcare Handyman, our crack filling and repair service covers:

Hairline cracks – fine surface cracks in plaster caused by normal shrinkage and thermal movement. Treated with flexible acrylic caulk or crack filler, sanded flush, and primed before painting.

Settlement cracks – wider cracks caused by building movement and foundation settlement. These require flexible fillers or polyurethane sealants that can accommodate ongoing movement without re-cracking.

Structural cracks – significant cracks indicating structural movement in the building fabric. These are assessed carefully – structural cracks that are still active may require a structural engineer’s assessment before repair and repainting.

Plaster cracks and delamination – areas where plaster has separated from the substrate (hollow, drum-sounding plaster). These areas are hacked off completely, the substrate is prepared, and new plaster is applied before finishing.

Ceiling cracks – cracks in plain, gypsum, and textured ceilings. Treated according to cause and severity, with careful blending into surrounding surfaces.

Corner and junction cracks – cracks at wall-ceiling junctions, door frames, window reveals, and other movement joints. Treated with flexible caulk and feathered into surrounding surfaces.

External render cracks – cracks in exterior render that allow water penetration. Treated with flexible external fillers, waterproof render, and exterior primer before repainting.

Our repair materials are selected carefully for each crack type – we never use a single filler product for all applications. The right material for the right crack ensures a lasting repair that does not re-crack, shrink, or telegraph through the new paint.

Plastering and Painting.

Fresh plaster and new render provide an ideal canvas for painting – but only when they are properly prepared, correctly cured, and appropriately primed. New plaster that is painted too soon, without the right primer, or without adequate surface preparation will result in paint failure, uneven sheen, and a finish that looks patchy and unprofessional.

Bestcare Handyman’s plastering and painting service covers both the application of new plaster and render where required, and the critical preparation steps needed to get newly plastered surfaces ready for painting.

Our plastering and painting services include:

New plaster skim coating – applying a thin, smooth skim coat of finish plaster over rough or uneven backgrounds to create a perfectly flat surface ready for painting. Skim coating is the best way to prepare old, textured, or uneven walls for a smooth paint finish.

Sand and cement render – applying sand and cement render to external walls, feature walls, and surfaces requiring a new masonry background.

Bonding coat plaster – applying a bonding coat to smooth, low-suction backgrounds (concrete, engineering brick, tiles) before a finish coat.

Patching and making good – matching and blending new plaster patches into existing surrounding plaster after repairs, pipe installations, cable chasing, or other building works.

Plaster curing and preparation – monitoring new plaster for correct drying, applying mist coats of diluted paint to seal and condition the surface, and applying appropriate primers before the finish coats.

Painting new plaster – applying the correct sequence of mist coat, undercoat, and finish coats to newly plastered surfaces for a perfect, long-lasting result.

Getting the plaster-to-paint sequence right is critical. Rush it, and you get uneven sheen, lifted paint, and a disappointing result. Do it correctly – as our team always does – and the finished surface is flawless.

Drywall Repair and Painting.

Drywall – also known as plasterboard or gypsum board – is increasingly common in Nairobi’s modern residential and commercial properties. Used for internal partitions, ceilings, and feature walls, drywall offers quick installation and a smooth finish – but it is also vulnerable to damage from impacts, moisture, and structural movement.

Damaged drywall that is poorly repaired is one of the most common causes of an unsatisfactory paint finish. Bulging patches, visible tape lines, uneven texture, and sheen variation all result from drywall that has not been repaired and prepared correctly.

Bestcare Handyman’s drywall repair and painting service covers:

Small hole repair – filling small nail holes, screw holes, and minor impact damage in drywall with joint compound, sanding flush, and priming for a completely invisible repair.

Medium hole repair – repairing holes up to approximately 15cm using mesh patches or backing board, skim coating with joint compound, sanding, and priming.

Large hole and panel replacement – cutting out damaged sections of drywall, installing new board, taping and jointing all seams, skim coating, sanding, and priming before painting.

Tape and joint repair – repairing failed, bubbled, or cracked drywall tape and joint compound at seams and corners – a common cause of unsightly lines and cracks showing through paint.

Moisture-damaged drywall – assessing and replacing drywall panels that have been softened, stained, or deformed by water damage – addressing the source of moisture before repair and repainting.

Drywall skim coating – applying a thin skim coat of joint compound over entire drywall surfaces to eliminate the texture difference between the board face and tape joints – creating a perfectly flat, Level 5 finish ready for the smoothest possible paint result.

Drywall priming and painting – applying drywall-specific primer to seal the surface and equalise porosity, followed by the specified topcoats.

Drywall repair done correctly is invisible. Done poorly, it is the first thing anyone notices about a freshly painted room. Our drywall specialists take the time to do it right – so the finished result is seamless.

Paint Touch-Up Services.

Not every painting job requires a full repaint. Sometimes all a property needs is a careful, targeted paint touch-up service – addressing scuffs, chips, marks, and minor damage without the disruption and cost of repainting entire rooms or surfaces.

Bestcare Handyman’s paint touch-up service is one of our most popular offerings for residential and commercial clients across Nairobi – particularly useful for:

Rental properties – touching up marks and scuffs between tenancies to refresh the property without a full repaint.
Office maintenance – addressing chair rail scuffs, trolley marks, and door frame chips in office corridors and common areas.
Post-construction touch-ups – correcting paint damage caused during construction, renovation, or fit-out work.
Pre-sale property preparation – refreshing small areas of wear and damage before putting a property on the market.
Newly painted surfaces – fixing drips, runs, missed patches, and other imperfections from a previous paint job.
High-traffic areas – touching up heavily used areas like stairwells, corridors, and reception areas that show wear faster than other surfaces.

Our paint touch-up process involves:

Colour matching – carefully matching the existing wall colour using the original paint tin if available, or through colour matching from paint chip or wall sample.
Surface preparation – cleaning and lightly sanding the area to be touched up for proper adhesion.
Careful application – applying paint with the appropriate tool (brush, roller, or spray) to match the existing texture and finish as closely as possible.
Feathering and blending – blending the edges of the touched-up area into the surrounding paint to minimise visibility.
Assessment in different lighting – checking the touch-up result under different lighting conditions to ensure the repair is invisible.

Paint touch-ups require skill and experience – particularly in colour matching and blending. A poorly executed touch-up can be more visible than the original damage. Our experienced painters ensure every touch-up is as invisible as possible.

The Complete Surface Preparation Process – How We Work.

At Bestcare Handyman, every surface preparation project follows a systematic, professional process that ensures nothing is missed and every surface is genuinely ready for painting.

Step 1 – Site Assessment We visit the property and carry out a thorough assessment of all surfaces to be prepared and painted. We identify all defects, damage, moisture issues, and preparation requirements – and discuss them with you before any work begins.

Step 2 – Scope Agreement We prepare a detailed written scope of work covering all preparation requirements – what needs to be repaired, what needs to be stripped, what needs to be primed, and what preparation sequence will be followed. This is included in our written quotation.

Step 3 – Protection and Masking Before any preparation work begins, we protect all adjacent surfaces, fittings, floors, and furniture with appropriate dust sheets, plastic sheeting, and masking tape.

Step 4 – Surface Stripping and Cleaning All loose, flaking, and unstable existing paint and plaster is removed. All surfaces are thoroughly cleaned to remove dirt, grease, mould, and other contaminants.

Step 5 – Repairs All cracks, holes, damaged plaster, and drywall damage are repaired using the appropriate materials and techniques – as described in our repair services above.

Step 6 – Sanding All repaired areas are sanded flush with surrounding surfaces. All previously painted surfaces are sanded or de-glossed as required. All surfaces are wiped down to remove sanding dust before priming.

Step 7 – Priming The appropriate primer is applied to all prepared surfaces – sealing, stabilising, and creating the ideal base for the topcoat.

Step 8 – Final Inspection All prepared surfaces are inspected under raking light to identify any remaining imperfections before the painting team begins applying finish coats.

Why Proper Surface Preparation Saves You Money in the Long Run

Cutting corners on surface preparation might seem like a cost saving in the short term – but it almost always costs more in the long run. Here is why investing in proper preparation makes financial sense:

Longer-lasting paint jobs – properly prepared surfaces hold paint for 5–10 years. Poorly prepared surfaces may need repainting within 1–2 years.
Better coverage and fewer coats – primed, sealed surfaces accept paint evenly, reducing the number of coats needed.
Preventing structural damage – untreated cracks, moisture, and damp issues get worse over time. Addressing them during surface preparation prevents expensive structural repairs later.
Protecting your investment – whether it is your home or a commercial property, a well-maintained painted finish protects the underlying fabric of the building.
Lower long-term maintenance costs – a paint job done right the first time needs less frequent maintenance and repair.

At Bestcare Handyman, we always provide honest advice on the preparation work required – and we never recommend more than is genuinely necessary. Our goal is to give you a paint job that lasts and delivers real value for your investment.

Areas We Cover for Surface Preparation Services in Nairobi.

Our surface preparation and finishing teams work across all of Nairobi and beyond:

Nairobi: Karen, Kilimani, Lavington, Westlands, Runda, Muthaiga, Gigiri, Parklands, Spring Valley, Kileleshwa, Hurlingham, Upper Hill, Langata, South B, South C, Ngong Road, Embakasi, Kasarani, Roysambu, Ruaka, Githurai, Zimmerman, Industrial Area

Surrounding Areas: Kiambu, Ruiru, Thika, Athi River, Ngong, Syokimau, Mlolongo, Machakos

Other Towns: Nakuru, Mombasa, Eldoret, Kisumu – available on request.

Get a Free Surface Preparation Quote in Nairobi Today.

Whether you need a simple crack filled and touched up, a full wall skim coat ahead of repainting, or comprehensive surface preparation across an entire property – Bestcare Handyman has the team and the expertise to do it right.

We provide free, no-obligation site visits and quotations for all surface preparation and finishing projects across Nairobi and Kenya.

Call or email us to describe your surfaces and the issues you are dealing with.
We visit your property and carry out a thorough surface assessment at no charge.
We prepare a detailed written quotation covering all preparation work required.
We agree on a schedule and get to work – methodically, professionally, and without shortcuts.
Your surfaces are perfectly prepared and ready for a beautiful, long-lasting paint finish.

📞 +254 709 004 600 ✉️ info@bestcare.co.ke 📍 3rd Floor, Madonna House, Westlands, Nairobi

Frequently Asked Questions – Surface Preparation & Finishing Nairobi.

Do I really need surface preparation if my walls look okay? Yes – in most cases. Walls that look acceptable to the naked eye often have imperfections, porosity variations, or surface contamination that will affect the paint result. At minimum, walls should be cleaned and primed before repainting. A professional assessment will identify any additional preparation needed.

How long does surface preparation take before painting can begin? Preparation time depends on the extent of repairs and the products used. Crack fillers and joint compounds typically need 4–24 hours to dry before sanding. New plaster needs at least 4–6 weeks to fully dry before painting. Primers typically dry in 2–4 hours before topcoats can be applied. We will give you a realistic timeline for your specific project.

Can you repair cracks that keep coming back? Yes – but recurring cracks require a different approach than static cracks. We use flexible repair materials that accommodate ongoing movement, and in some cases we recommend crack stitching or structural assessment before repair. We will always advise honestly on the best solution for your specific crack.

Do you offer skim coating for old, textured walls? Absolutely. Skim coating is one of the best ways to achieve a smooth, modern finish on old walls with heavily textured or uneven surfaces. Our plasterers apply a thin, smooth skim coat that completely transforms the wall surface – ready for a flawless paint finish.

Can you match my existing wall colour for touch-up work? Yes. We carry out careful colour matching for all touch-up work – using the original paint tin where available or matching from the existing wall surface. While a perfect invisible touch-up is not always guaranteed (particularly on older, faded paint), our experienced painters achieve the best possible match in every case.

What is the difference between a mist coat and a primer? A mist coat is a heavily diluted emulsion paint applied to new plaster to seal the surface and condition it before normal paint coats. A primer is a purpose-formulated product designed to seal, stabilise, and improve adhesion on a specific substrate. Both serve similar purposes – but primers are generally more effective and appropriate for most surfaces. We will always recommend the right product for your specific surface.

Do you repair damp walls before painting? Yes – but we always address the source of dampness before repairing and repainting affected surfaces. Painting over active damp without fixing the source is pointless – the paint will fail quickly. We identify the cause of the damp, recommend the appropriate remedial action, apply damp-proof treatments where needed, and then repair and repaint.