BCA Registered (CR13) HDB Licensed bizSAFE Level 3
KL Seal Maste waterproofing work in Kuala Lumpur
Voted top waterproofing contractor & specialist in Kuala Lumpur

Waterproofing Contractor in Kuala Lumpur That Fixes Leaks at the Source

KL Seal Maste Waterproofing traces where the water is coming from, repairs it with our 3–5 coat system, and backs the work with a 12-month warranty. For HDB flats, condos, landed homes and commercial buildings.

  • Free onsite inspection by a project lead
  • HDB approved, with non-hacking options
  • Itemised quote before any work starts
  • 12 months warranty (T&C apply)
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Years Experience
0+
Projects Completed
0.0★
Google Rating
12 mo
Warranty
BCA RegisteredCR13 Approved Contractor
HDB LicensedAccepted for HDB flats
bizSAFE Level 3Workplace safety certified
12-Month WarrantyOn completed works

Waterproofing, Leak Repair & Making-Good Works From One Contractor

Every service you need to trace, stop and make good a leak — handled by a single licensed team.

Waterproofing

Protective systems for every wet area of your property.

  • Bathroom Waterproofing — toilet & shower floors, walls, kerbs
  • Balcony Waterproofing — exposed slabs, edges, thresholds
  • Swimming Pool Waterproofing — pool shells, tanks, decks
  • Roof Waterproofing — flat, metal & roof terraces
  • Basement Waterproofing — below-ground walls & slabs
  • Floor Waterproofing — kitchens, yards, wet floors
  • Cementitious / Non-Hacking — over existing tiles
  • Liquid Applied / Torch-On Membrane

Water Leakage Repair

Tracing and repairing leaks anywhere in your property.

  • Ceiling Leakage Repair — stains, drips, inter-floor leaks
  • Wall Leakage Repair — damp walls, seepage, peeling paint
  • Roof Leakage Repair — leaks after heavy rain

Other Services

Complete making-good and finishing works after waterproofing.

  • Tiling Works — retiling floors & walls
  • Painting Works — repainting damaged surfaces
  • PU Grouting Injection — seal active leaks in cracks
  • Demolition & Disposal — hacking & debris removal
  • Epoxy Flakes Flooring — seamless hard-wearing finish
Surface before KL Seal Maste waterproofing Before
Surface after KL Seal Maste waterproofing After

We Diagnose the Root Cause of Your Water Leakage

The stain on your ceiling is rarely where the water gets in.

  • Trace, don't patchWe locate the true entry point before any work is proposed.
  • Evidence-led diagnosisMoisture readings and pressure tests tell us the source.
  • Transparent scopeYou see the full plan and a clear itemised quote first.
KL Seal Maste 5 layer waterproofing coat system

The KL Seal Maste 3–5 Coat Waterproofing System

Our system builds waterproofing up in layers, up to five coats, instead of relying on one thick application. It is applied by our own trained team for long-lasting results in Kuala Lumpur homes.

  • Suited to Kuala Lumpur's heatCost-effective and made for hot, wet weather.
  • No hacking neededApplied over the existing surface in suitable cases — less dust, noise and downtime.
  • HDB approvedAccepted for use in HDB flats.

We Keep the Quality and Bring the Cost Down

Smarter sourcing and proven methods mean a stronger, longer-lasting result without the premium price.

  • Bulk-purchased, locally produced materialsMade in Kuala Lumpur, supplied direct — no middleman mark-up.
  • Bonding products for a stronger holdApplied in combination for a durable bond to the surface.
  • Strong, durable and long lastingTreated areas keep performing for years.
KL Seal Maste waterproofing materials produced in Kuala Lumpur
Locally produced materials
KL Seal Maste team applying waterproofing coat
Trained application team

Some of Our Past Works

From HDB bathrooms to condo balconies, landed roofs and commercial basements — real projects, real results.

Bathroom waterproofing project
Bathroom WaterproofingHDB · Non-hacking treatment
Balcony waterproofing project
Balcony & TerraceCondo · Exposed slab repair
Roof waterproofing project
Roof WaterproofingLanded · 5-coat system
Ceiling leak repair project
Ceiling Leak RepairInter-floor leak solution
Swimming pool waterproofing project
Swimming PoolPool shell & deck coating
Epoxy flakes flooring project
Epoxy Flakes FlooringCommercial · Seamless finish

A Licensed, Accredited Waterproofing Specialist

Work with confidence — every KL Seal Maste team is verified, insured and trained to Kuala Lumpur standards.

BCA Registered (CR13)

Approved contractor registered with the Building & Construction Authority.

HDB Licensed Contractor

Licensed to work on HDB flats and common property.

bizSAFE Level 3

Workplace safety and health management system certified.

Qualified Technical Personnel

Staff trained continuously through BCA-approved courses.

Claim a Free Onsite Waterproofing Inspection

Before you pay for anything, you will know what is causing the leak, what it takes to fix it and what it will cost. The inspection is free and there is no obligation to proceed.

What is included

  • Free onsite inspection by a project lead
  • Root cause identified before any repair is proposed
  • Detailed, transparent quote with inclusions & exclusions
  • Surface preparation, debris removal & clean-up
  • 12 months warranty on completed works
Claim My Free Inspection

Warranty terms and conditions apply.

What You Will Get From The Inspection

How we make sure you get the most cost-effective solution for your home in the long run.

1
Precise on-site assessment

Comes with a detailed, transparent quote setting out tasks, solution, areas included and excluded. You see the full scope before you decide.

2
The most cost-effective option

Once the root cause is found, we recommend the most practical repair — solving the leak at its source, avoiding unnecessary work.

3
Full preparation and implementation

Our team handles surface prep, debris removal, application of the waterproofing system and a proper clean-up when done.

The Difference In Engaging KL Seal Maste To Solve Your Leakage Issues

A leak that is patched and a leak that is solved can look the same on day one. The difference shows up months later.

FactorTypical quick-fix repairKL Seal Maste Waterproofing
DiagnosisPatches the visible stain or crackTraces the leak to its source first
InspectionEstimate over the phone, or chargeable visitFree onsite inspection by a project lead
QuoteLump sum with unclear scopeItemised, transparent, with exclusions
MethodOne product used for every job3–5 coat system matched to the surface
ScopeStops at sealing; tiling/painting left to youOne team handles hacking, tiling, painting & debris
CredentialsLicences not always shownBCA CR13, HDB licensed, bizSAFE Level 3
After the jobNo written warranty12 months warranty (T&C apply)

What Kuala Lumpur Property Owners Say About KL Seal Maste

★★★★★

“We have engaged them for our master bathroom water leakage problems that is already leaking to our neighbour unit below. They came for inspection within short period of notification. Inspection was free of charges, thumbs-up!”

MC
Mark ChanBathroom Leak Repair
★★★★★

“I've tried many other waterproofing contractors, plumbers, whatsoever. KL Seal Maste has great experienced staff that finally solved my ceiling leakage issues.”

SK
Sheila Lin KuohCeiling Leak Repair
★★★★★

“Friendly and experienced staff! Their team is very responsive and they are truthful in their quotation.”

JT
Joshua TanBalcony Waterproofing
★★★★★

“Highly professional. Reasonable rates. Their workmanship is of good quality.”

LK
Ling Xin KohRoof Waterproofing
★★★★★

Rated 5.0 on Google — trusted by hundreds of HDB, condo and landed property owners across Kuala Lumpur.

★
5.0 Google RatingVerified customer reviews

Who Our Waterproofing Solutions Are For

Different properties leak in different places. This is who we work with and what we usually fix for them.

HDB Homeowners

Ceiling leaks from the flat above, bathroom re-waterproofing during renovation, and damp walls. HDB-licensed, with non-hacking options.

Condo Owners & MCSTs

Inter-floor leaks between units, balconies and planter boxes, plus roofs and common areas for the estate.

Landed Property Owners

Flat roofs and roof terraces, basements, external walls and swimming pools.

F&B Outlets

Kitchen floors that stay wet all day, floor traps, and leaks into the unit below.

Offices & Retail

Ceiling leaks over work areas and shopfronts, seepage at windows and walls, toilet leaks.

Facility Managers

Roofs, basements, pipe shafts and refuse chambers across commercial and industrial sites.

Why Choose KL Seal Maste as Your Waterproofing Contractor

Root cause firstWe solve the leak at its source, not the symptom.
12 months warrantyCompleted works covered for 12 months (T&C apply).
Detailed onsite inspectionsCarried out by a project lead, free of charge.
Licensed & registeredCR13 registered, HDB licensed, bizSAFE Level 3.
Experienced workersTrained continuously through BCA-approved courses.
Responsive to enquiriesCall or WhatsApp and a real person replies.

Office: No. 18 Sin Ming Lane, Midview City #06-23, Kuala Lumpur 573960

Email: info@KL Seal Maste.com.sg

KL Seal Maste certifications: Google reviews, bizSAFE, HDB licence, BCA registered

Consult KL Seal Maste Waterproofing Today

Leave your details and we will arrange your free onsite inspection.

Waterproofing & Leak Repair Guides for Kuala Lumpur Homes

Read up before you engage anyone. These guides explain the causes, the options and what to ask a contractor.

FAQs

We work in three areas: waterproofing (bathrooms, balconies, roofs, basements, floors and swimming pools), water leakage repair (ceiling, wall, roof, pipe and toilet leaks) and supporting works such as tiling, painting, PU grouting injection, water pressure testing, demolition and epoxy flakes flooring. We serve HDB flats, condominiums, private and landed homes, and commercial and industrial properties across Kuala Lumpur.

The price depends mostly on how big the area is, whether tiles need to be hacked, and which waterproofing system the surface needs. Two bathrooms of the same size can cost very differently if one needs hacking and retiling and the other can be treated without hacking.

FactorWhy it changes the price
Size of the areaMaterial and labour scale with floor area, walls, kerbs and corners.
Hacking or non-hackingHacking adds demolition, debris disposal, screeding and new tiles.
Waterproofing systemCementitious, liquid applied, torch-on membrane and PU injection differ in cost and coats.
Condition of surfaceCracks or a failed membrane must be repaired before new coating.
Location & accessRoofs and high areas may need scaffolding; basements resist ground pressure.
Property typeHDB, condo, landed and commercial sites have different requirements.
Making-good worksRetiling, repainting and ceiling repairs after waterproofing.
TestingPonding and water pressure tests confirm the area is watertight.

This is why we quote after a free onsite inspection, not over the phone.

Plumbing deals with water inside pipes and fittings. Waterproofing deals with water passing through floors, walls and roofs. A plumber fixes a leaking pipe; a waterproofing contractor stops water seeping through the structure.

PlumbingWaterproofing
What it deals withPipes, taps, valves, cisterns, drainsFloors, walls, roofs, joints, penetrations
Typical signsDripping tap, burst pipe, choked drainCeiling stains, damp walls, leaks after rain
When it showsConstantly, or when a tap runsAfter showers, washing or rain
Typical fixReplace or reseal pipe, fitting, valveMembrane, PU injection, sealing cracks
Who to callA licensed plumberA waterproofing contractor

Look at where the water shows up and when. The pattern usually points to the cause.

What you seeLikely cause
Stain under a bathroomFailed bathroom waterproofing or a pipe leak
Leak only after heavy rainRoof, external wall or window joints
Damp, peeling paint on a wallSeepage through the wall or wet area behind it
Water around toilet / floor trapWorn seal or failed membrane around outlet
Renovating a wet areaOld membrane removed with the tiles

Not always. Where the tiles and screed are still sound, our non-hacking waterproofing treats the area over the existing surface — less dust, less noise and a shorter job. Hacking is needed when tiles are hollow or cracked, the screed is soaked, or the old membrane has failed. We will tell you which applies after the inspection.

For inter-floor leaks in HDB flats, HDB's position is that the upper and lower floor flat owners are jointly responsible for the repair. In condominiums, the leak is generally presumed to come from the unit above, and the MCST may be involved if common property is affected. It helps to have a clear inspection report before speaking to your neighbour.

It depends on the area and method. A non-hacking treatment is quickest. A job with hacking takes longer because it adds demolition, screeding, curing between coats, a ponding test and retiling. Your quote states the expected duration and when the area can be used again.

Completed waterproofing works come with a 12-month warranty (terms and conditions apply). Covered areas are written into your quote, so there is no doubt later about what is included.

Yes. A project lead visits, assesses the affected area and gives you a detailed quote at no charge. There is no obligation to proceed. To arrange one, send the enquiry form or WhatsApp +65 8668 2282.

A sealant can hold back a small, obvious gap for a while. It does not fix a failed membrane or a leak that enters somewhere else, and it can hide the problem until the damage is larger. Finding the true source takes experience and the right tests.

  • Internal wet areas: kitchens, bathrooms and toilets, balconies
  • External wet areas: roofs, external walls, basements, swimming pools and refuse chambers

Have a Leak? Let's Find It Together — For Free.

Book your free onsite inspection today and get a clear, itemised quote with a 12-month warranty.

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