Anti-Fungal & Damp Treatment Services in Nepal

Dark patches on a bedroom wall, a musty bathroom that never quite airs out, paint peeling off in sheets right after the monsoon if any of that sounds familiar, you're not alone. Kathmandu's humid summers and heavy monsoon rain give mould and mildew exactly the conditions they need, especially in older buildings with poor ventilation. We don't just paint over the patch. Our teams find where the moisture is actually coming from, treat the wall properly, and seal it so the fungus doesn't just show back up next season.

Why Choose Our Anti-Fungal & Damp Treatment Service

•        Experienced teams who've handled damp and fungus jobs across Kathmandu, Lalitpur, and beyond, not a one-off crew learning on your wall

•        Specialists who diagnose the actual moisture source before touching a brush

•        Quality workmanship backed by a written warranty, not just a verbal promise

•        Transparent, itemised estimates you know what you're paying for before work starts

•        Timely completion, with realistic timelines given upfront, not adjusted halfway through

•        Anti-fungal primers and topcoats sourced for genuine moisture resistance, not just any tin of paint

•        Local know-how our contractors understand how Nepal's monsoon and building styles affect damp patterns

Our Anti-Fungal & Damp Treatment Services

Surface cleaning and fungal wash loose paint and visible mould are scraped off, then the wall gets an anti-fungal chemical wash that kills spores sitting on the surface and inside the plaster's pores.

Damp-sealing and priming a damp-seal primer blocks whatever residual moisture is left from bleeding through into your fresh paint.

Waterproofing coats where needed for walls with active seepage or rising damp, we add a waterproofing layer before the primer goes on. If the source turns out to be the roof or terrace slab itself, our RCC roof waterproofing team handles that side of the job too.

Anti-fungal topcoat and repainting the final coat is a moisture-resistant, anti-fungal paint that restores the wall's look while actually protecting it going forward. Where you'd rather have a textured or decorative finish instead of flat paint, we can match that through our texture and decorative paint service.

Ventilation and moisture-source advice where poor airflow or a hidden leak is the real culprit, we flag it so the fix actually lasts.

Where This Service Is Suitable

•        Residential homes and apartments

•        Commercial offices

•        Hotels and guest houses

•        Restaurants and cafés

•        Schools and institutional buildings

•        Hospitals and clinics

•        Industrial and warehouse spaces

Our Working Process

•        Consultation you tell us what's going on and where

•        Site visit and inspection our specialist checks the affected walls in person

•        Diagnosis we pin down whether it's seepage, plumbing, condensation, or rising damp

•        Planning and quotation a clear, written estimate before anything starts

•        Material selection primers, washes, and topcoats matched to your specific wall

•        Execution cleaning, chemical wash, sealing, and repainting done in sequence

•        Quality check we inspect coverage and sealing before calling it done

•        Final handover with workmanship warranty terms explained

Materials & Options

Anti-fungal chemical wash kills existing mould and mildew at the surface and within the plaster; used as the first step on almost every job.

Damp-proof primer blocks moisture migrating up from the ground or bleeding through from behind the plaster; the standard choice for older, ground-floor rooms.

Waterproof coating added when there's active water seepage from outside, particularly on exterior walls and ceilings under terraces or flat roofs.

Anti-fungal topcoat paint the final protective layer, formulated to resist regrowth; a stronger option is used in bathrooms and other constantly humid rooms.

Benefits of Choosing Our Service

•        Removes mould at the source instead of hiding it under a fresh coat of paint

•        Cuts down household exposure to mould spores and musty air

•        Protects plaster and structure from ongoing moisture damage

•        Makes your paint job last through more monsoon seasons

•        Restores the look of stained walls and ceilings properly

•        Gives you a documented process and warranty, not just a quick patch job

Common Problems We Solve

•        Fungus that keeps coming back within months of a repaint

•        Musty smell in bathrooms and ground-floor rooms that won't go away

•        Paint bubbling or peeling off shortly after application

•        Dark patches spreading on ceilings below terraces or flat roofs

•        White powdery deposits forming on walls (efflorescence)

•        Rising damp in older buildings without a proper damp-proof course

Quite a few damp problems trace back to something hidden behind the wall rather than the wall itself. If a water supply line is leaking inside the plaster, or the roof covering has failed above a ceiling that keeps staining, we can bring in our tin and sheet roofing team to fix that source before we touch the finish.

Cost Factors

We don't quote fixed prices online every wall's damp problem is different. What we can tell you is what actually drives the cost.

After a site inspection, you'll get an itemised estimate that spells out exactly what's included before any work begins.

Why Construction Sewa

We connect you with verified, experienced painting and waterproofing contractors not unvetted freelancers found through a random listing. Every job starts with a real site inspection and a written estimate, moves through milestone-based payments, and ends with a quality check plus a workmanship warranty. Whether it's one damp bathroom wall or a full exterior treatment ahead of monsoon, we handle diagnosis, treatment, and repainting as one coordinated job.

Areas We Serve

We provide anti-fungal and damp treatment across Kathmandu, Lalitpur, Bhaktapur, Pokhara, and 20+ districts nationwide for homes, apartments, and commercial properties throughout Nepal.

Frequently Asked Questions

How do I remove fungus from a damp wall?

Loose paint and surface growth get scraped off, then the wall is treated with an anti-fungal wash to kill remaining spores before sealing with a damp-resistant primer and repainting. Skip the moisture source and the fungus just comes back.

What's the best anti-fungal treatment for walls?

Depends on the cause. Surface-level fungus usually responds to a chemical wash plus primer. Walls with rising damp or active seepage need waterproofing first, then the anti-fungal topcoat.

How do I stop mould and damp from coming back?

You've got to fix the actual source a leak, poor ventilation, or exterior seepage alongside the wall treatment itself. Improving airflow and sealing exterior walls properly both help.

What's the main cause of damp and mould on walls in Nepal?

Monsoon rainwater getting in through cracks or weak exterior waterproofing, rising damp in older buildings, hidden pipe leaks, and poor ventilation in bathrooms and ground-floor rooms.

Do you provide a written estimate before starting work?

Yes. After the site visit, you get a transparent estimate covering scope, materials, and timeline before anything begins.

Ready to Treat Your Damp or Fungus-Affected Walls?

Whether it's a single bathroom wall or a full exterior job before the next monsoon, Construction Sewa connects you with verified specialists who treat the cause, not just the stain. Call +977-9716693969 or book a free site visit today for a transparent quotation.