Stop Landed Home Leaks at the Source — Not Just the Stain
NexTech Waterproofing is a Singapore contractor for landed, terrace & bungalow waterproofing. We trace the true leak source with thermal imaging, try non-hacking fixes first, and back the work with a written warranty of 1 to 5 years, depending on roof condition.
What is landed, terrace & bungalow waterproofing?
It is the diagnosis and repair of water ingress in landed homes — mainly roofs, parapets, external walls, ceilings, balconies and driveways. Unlike HDB or condo units, the landed owner is responsible for all of it. A specialist first traces the leak source, then seals it with PU injection, membrane or coating systems, often without hacking.
Is your landed home showing these leak warning signs?
These are the patterns we see most often in terrace, semi-detached and bungalow homes across Singapore — especially once the Northeast Monsoon sets in.
Roof leaks after heavy rain
Water tracking in during or right after a downpour, usually worst on flat RC roof sections.
Ceiling stains or drips
Brown patches or active dripping on ceilings below the roof, a roof terrace or a bathroom above.
Damp or peeling external walls
Hairline cracks, bubbling paint or a musty smell along parapet, party and boundary walls.
White powder on walls
Efflorescence is salt left behind by moisture moving through masonry — a sign water is getting in.
Driveway or planter box seepage
Water pooling on the driveway slab or seeping into the car porch ceiling below.
Mould in top-floor rooms
Persistent mould or a damp smell in attic or top-floor rooms often points to a slow roof leak.
Why the same leak keeps coming back
Water rarely drops straight down from where it enters. It slips through a hairline parapet crack or a tired roof-to-wall joint, then travels along the slab before it stains a ceiling metres away.
That is why painting over the stain — or coating the wrong section of roof — only resets the clock. The leak returns after the next heavy downpour, and you pay twice.
So we flip the order: diagnose first, fix second, guarantee in writing. It is the simplest way for a landed homeowner to stop chasing the same leak every monsoon.
Landed, terrace & bungalow waterproofing services we cover
Your roof, walls, balconies and driveway are entirely your own responsibility. Here is where we focus — each service links to a full guide.
Flat RC roof waterproofing
Membrane, liquid coating and PU injection for RC flat roofs and roof terraces.
Roof waterproofing for landed houses →Concrete roof waterproofing
Sealing cracks, ponding areas and worn coatings on concrete roof slabs.
Concrete roof waterproofing →Metal & tiled roofs
Rust, corrosion and joint leaks treated with proven coatings and sealants.
Metal roof waterproofing →Bungalow & GCB roofs
Multi-level roofs, valleys and skylights, assessed zone by zone.
Bungalow roof waterproofing →External wall & parapet
Thermal-imaging leak tracing and sealing for boundary walls, parapets and hairline cracks.
Wall leakage repair →Ceiling leak repair
Finds the true source of a leak before repair — not just a patched stain.
Ceiling leak repair →Balcony & roof terrace
Stops seepage through tiled balconies and terraces into rooms below.
Balcony waterproofing →Driveway & planter box
Stops seepage into car porch ceilings and structures below ground-level slabs.
Landed house waterproofing →Terrace vs semi-detached vs bungalow: what changes for waterproofing?
The leak sources differ by house type, so the plan and access method do too. Terrace house waterproofing is usually a tighter, roof-and-party-wall job. Bungalow waterproofing is about scale and access.
| Property | Common leak hotspots | Typical approach | Access |
|---|---|---|---|
| Terrace / corner terrace | Rear RC flat roof, roof-to-party-wall joints, parapet cracks, extension roofs | Membrane or liquid coating on the roof, PU injection at cracks | Two-storey access; scaffolding or internal roof access |
| Semi-detached | Exposed side walls, parapets, roof valleys, balcony slabs | Wall crack sealing plus roof membrane; drainage checked | Side-boundary scaffolding |
| Bungalow / GCB | Multi-level roofs, metal and tile mixes, skylights, roof terraces, long parapets | Zone-by-zone roof assessment; membrane, coating and sealants at penetrations | MOM-certified scaffolding and safe access |
How our landed home waterproofing process works
Every landed, terrace & bungalow waterproofing job follows four steps, in this order. No flat-rate guesses and no work before you have approved a written quote.
Free inspection & leak tracing
We check roof, walls, ceilings and drainage, using thermal imaging to follow the water back to its entry point.
Diagnosis & non-hacking-first plan
You get a plain-English explanation and a repair plan that tries PU injection or membrane overlay before hacking.
Repair with safe access
Work is done from MOM-certified scaffolding or safe roof access, using the system matched to your roof or wall type.
Handover & written warranty
We walk you through what was done and confirm your warranty in writing, from 1 to 5 years depending on your roof condition.
Which waterproofing method suits which part of your landed home?
| Method | Best for | Hacking needed? |
|---|---|---|
| PU injection | Hairline and structural cracks, joints, parapet and wall seepage | No — non-hacking |
| Liquid membrane / coating | RC flat roofs, roof terraces, concrete slabs with a sound base | Usually no, if the existing layer is sound |
| Sheet or torch-on membrane | Larger flat roofs needing a thicker, more durable layer | Sometimes — depends on the existing layers |
| Metal roof coating & sealant | Metal roofs with rust, corrosion or failing joints | No |
| Cementitious waterproofing | Planter boxes, wet areas and masonry walls | Depends on the surface condition |
The right method depends on what your inspection finds, not on what is quickest to sell. See our waterproofing guide for landed homeowners for more detail.
Repair, recoat or replace? How to decide for your landed roof
Not every leak needs a full re-waterproofing job. The right answer depends on what the inspection finds.
Localised repair
Best when the existing waterproofing is sound and the leak comes from one crack, joint or penetration. PU injection or a patch repair often fixes it without hacking.
Membrane or coating overlay
Best when the existing layer is intact but ageing, with worn coating or minor blistering. A new layer goes over a properly prepared surface.
Remove and reinstall
Needed when old layers have lost adhesion, trap moisture or keep leaking after repairs. The old layers come off and a new system goes in.
Your free inspection tells us which option applies. Roof condition is also what determines your written warranty length, from 1 to 5 years.
How much does landed house waterproofing cost in Singapore?
Short answer: NexTech landed home waterproofing starts from S$900. The final price depends on roof area, condition and access, and is confirmed in writing after a free inspection.
| Job type | Pricing | What moves the price |
|---|---|---|
| Localised leak or crack repair | From S$900 | Number of cracks, access, PU injection vs patching |
| Terrace / semi-D flat roof | Quoted after free inspection | Roof area, condition, old layers, membrane vs liquid coating |
| Metal roof recoat | Quoted after free inspection | Rust extent, sealant work, scaffolding |
| Large bungalow / multi-level roof | Quoted after free inspection | Roof area, number of levels, valleys, skylights, scaffolding |
Pricing for landed, terrace & bungalow waterproofing is confirmed in writing before any work starts. No obligation.
What you get with your free leak-source inspection
- Free on-site leak-source inspectionRoof, walls, ceilings and drainage checked, with thermal-imaging tracing where needed.
- Plain-English diagnosisYou will know where the water enters and why, not just where it shows up.
- Non-hacking-first assessmentPU injection and membrane overlay are checked before anything invasive is recommended.
- Clear written quoteScope and price confirmed in writing before any work starts. No obligation.
- Written warranty of 1 to 5 yearsThe length depends on your roof condition and the system used.
- Bonus: free second opinion on any quote you already haveSend it over and we will compare the scope with you.
7 questions to ask any waterproofing contractor before you sign
Comparing quotes for landed, terrace & bungalow waterproofing? Price is only half the picture. Put these questions to every contractor, including us.
| Ask | A good answer sounds like | Our answer |
|---|---|---|
| 1. Will you find the leak source before quoting? | Diagnosis first, not a flat-rate guess | Free inspection with thermal-imaging tracing before we quote |
| 2. Is hacking really necessary? | They explain why, and non-hacking options were assessed first | PU injection and membrane overlay are assessed first |
| 3. What exactly does the warranty cover? | Written, stating method, period and exclusions | Written, 1 to 5 years depending on roof condition |
| 4. How is work at height done? | Certified scaffolding and proper safe access | MOM-certified scaffolding and safe access |
| 5. What is in the quote? | Clear scope: area, system, preparation, drainage | Scope and price confirmed in writing before work starts |
| 6. Can I see real landed projects? | Photos of actual jobs, verifiable reviews | 500+ jobs and a 5.0-star Google rating; see projects below |
| 7. What happens if the leak returns? | A clear written process under the warranty | Covered under your written warranty terms |
Already have a quote? Send us a photo of it on WhatsApp for a free second opinion on scope and method.
Send Us Your QuoteBuilt for how landed homeowners actually decide
Free, no-obligation site inspection
We assess the actual leak source before quoting — not a blanket flat-rate guess.
Written warranty: 1 to 5 years
Backed in writing. The length depends on your roof condition and the system used.
MOM-certified scaffolding & safe access
Proper access for two-storey terrace roofs and bungalow rooflines.
5.0-star rated, 500+ jobs completed
★★★★★ across verified Google reviews.
Recent landed, terrace & bungalow waterproofing projects
Real jobs on real Singapore properties — not stock photos.
Landed, terrace & bungalow waterproofing across Singapore
We deliver landed, terrace & bungalow waterproofing islandwide. A few of the neighbourhoods we are often called to:
Landed, terrace & bungalow waterproofing checklist: 8 checks before the monsoon
You do not need to climb a roof to catch problems early. Run through these eight checks once a year, ideally in October, and again after any heavy downpour. It takes about 15 minutes.
Ceilings and top-floor walls
Look for new stains, bubbling paint or a musty smell after the first heavy rain.
Parapet and boundary walls
Check for hairline cracks, especially near corners, joints and roof-to-wall junctions.
Roof drains and gutters
Clear leaves and debris from outlets you can reach safely. Blocked drains cause ponding, which stresses the waterproofing layer.
Standing water on flat roofs
From an upper window, check whether puddles are still there 24 to 48 hours after rain. Lingering ponding is a warning sign.
Coating condition
Look for blistering, peeling or lifted coating on any roof area you can see safely.
Balcony and terrace joints
Check tile joints and door thresholds for dampness, staining or loose tiles.
Car porch and driveway
Look for damp edges, white powder or drips on the car porch ceiling below the slab.
Photo log
Photograph any stain with the date. If it grows, you have a record that speeds up the inspection.
Safety first: never climb a wet or unfamiliar roof. If a check needs roof access, call us and we will inspect it from proper access, free of charge.
Common questions from landed homeowners
Who is responsible for roof leaks in a landed house?
The homeowner. Unlike an HDB flat or condo, a landed house usually has no town council or management corporation covering the roof, external walls or driveway, so leak repair and waterproofing are your responsibility. A specialist can trace the source and give you a written repair plan.
How much does landed house waterproofing cost in Singapore?
NexTech landed home waterproofing starts from S$900. The exact price depends on roof area, condition, access and the system used, and is confirmed in writing after a free inspection.
Can you fix a landed roof leak without hacking?
Often, yes. We assess whether a non-hacking repair such as PU injection or a membrane overlay is suitable before recommending anything more invasive. Hacking is only recommended when the existing layers have failed and cannot be sealed reliably.
How long does landed roof waterproofing take?
Most landed roof jobs take from a few days to about a week, depending on roof size, condition, the system used and the weather. We give you a clear timeline in your free, no-obligation quote.
What warranty do you provide?
Warranty length depends on the method used (non-hacking vs hacking, membrane vs coating) and is confirmed in writing before work starts. It ranges from 1 year to 5 years, depending on the roof condition. Always ask any contractor to state the method, the period and the exclusions in writing.
Can roof waterproofing be done during the rainy season?
Coatings and membranes need a dry surface to bond, so work is scheduled around dry spells. That is why we recommend inspecting before the Northeast Monsoon, which runs from December to early March, with the wettest phase from November to January.
Do you cover terrace, semi-detached and bungalow properties islandwide?
Yes. We provide landed, terrace & bungalow waterproofing across Singapore, covering terrace, corner terrace, semi-detached, and bungalow or GCB properties.
How do I know if a leak is from the roof, a wall or a pipe?
Water rarely shows up where it enters. We combine a visual inspection with thermal-imaging leak tracing to separate roof, wall and pipe sources before quoting, so you do not pay to waterproof the wrong area.
Do I need to be home for the inspection?
We recommend it so we can walk you through what we find, but we can also work directly with your caretaker or agent if you are unavailable.
How often should a landed house roof be inspected?
Once a year is a good rule, ideally before November, and again after any renovation or roof works. Small cracks and worn joints are far cheaper to seal early than after a ceiling has stained.
What should I look for when choosing a waterproofing contractor?
Look for a diagnosis before the quotation, a written warranty that states method, period and exclusions, certified scaffolding for work at height, and photos of real landed projects. See our checklist of questions to ask above.
Read next: Roof leak problems in Singapore · Waterproofing tips for landed homes · Landed property waterproofing · Roof repair in Singapore
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