Balcony Waterproofing in Singapore
Find and Fix the Source of Your Balcony Leak
Get a free, no-obligation on-site inspection of your balcony. You will know where the water is getting in, and whether it can be fixed without hacking, before you pay for any repair.
✓ Free inspection · No obligation
✓ Non-hacking options for many balcony leaks
✓ Same or next-day for urgent leaks
“Cyrus specialist waterproofing team is professional and does follow up after work done.” — Jonathan Ng
✓ BCA Trained Partner · ✓ 15+ Years Experience
Book Your Free On-Site Inspection
Tell us about your balcony leak. We will contact you to arrange the next step.
No obligation · Same or next-day for urgent leaks
Testimonials · What customers say
What homeowners say after their leak is fixed
Real feedback from Singapore customers.
Jonathan Ng
“Cyrus specialist waterproofing team is professional and does follow up after work done. Recommend to look him for any leaks in your home & commercial properties that needs waterproofing.”
C.T
“
So far so good.. your guys are fine. Thank you.
”
Our approach · What you get
Get the Right Fix for Your Balcony Leak
Every balcony leak job starts with an inspection, so you know what is causing the leak and what you are paying for before you decide.
Find the source of the leak
An on-site check of the balcony tiles, grout joints, cracks, drainage and floor trap, with the likely water-entry point and recommended next step.
Avoid hacking where you can
Many balcony leaks can be repaired without removing tiles, using flood infusion, PU injection or re-grouting. You will know if a non-hacking method suits your balcony before work starts.
Know what you are paying for
A quotation based on the inspected condition and scope of repair, not a guess made over the phone.
Understand your warranty
The workmanship warranty, its duration and conditions are explained before work begins.

✓ BCA Trained partner · ✓ 15+ years experience · ✓ Free inspection, no obligation
How it works
What Happens After You Request an Inspection?
1. Tell us about the leak. Fill in the enquiry form, or WhatsApp us photos of your balcony or the stain on the ceiling or wall below.
2. Get a free on-site inspection. You get a visit at a time that suits you to check the affected area. Urgent leaks can be seen the same or next day.
3. Review your options. You see the scope of work, whether hacking is needed, and the quotation before you decide. No obligation.
4. Get the agreed repair done. If you accept the quotation, your waterproofing is scheduled using a method suited to the inspected condition.

Why Choose WaterproofingGuy.sg?
Experienced partner
Your job is handled with AJ Jetting Pte. Ltd., a BCA Trained waterproofing contractor with 15+ years of experience and bizSAFE Star accreditation.
Inspection first
Your repair recommendation is based on the affected area, not a one-size-fits-all treatment.
Method suited to the problem
A balcony leak can come from cracked grout, damaged tiles, a worn waterproofing membrane, cracks in the concrete slab or poor drainage. Each needs a different fix, so your repair is matched to the actual cause.
Workmanship warranty
Coverage depends on the repair area, system and materials. Terms are explained before work begins.
The problem · Why leaks get worse
Is a Balcony Leak Damaging Your Home?
Water from a leaking balcony can travel through tile joints and cracks in the slab, so the damage often shows up away from where it starts, on the ceiling below or the walls inside.
Stains on the ceiling or walls below?
A damaged or worn waterproofing membrane lets rainwater seep through the balcony floor into the unit or room below, causing water stains and peeling paint.
If ignored: disputes with your neighbour and repair costs that keep growing.
Water pooling or slow drainage?
Blocked or insufficient drainage leaves water sitting on the balcony floor after rain, giving it time to soak through cracked grout and tile joints.
If ignored: water works its way under the tiles and into the concrete slab.
Damp walls, mould or white chalky stains?
Water trapped under the tiles or in the concrete keeps the area damp, causing mould, peeling paint and white chalky deposits (efflorescence). Repainting or cleaning does not fix where the water is getting in.
If ignored: you keep paying for surface repairs that never fix the cause.
You deserve to know what is causing your balcony leak before spending money on repairs.
Frequently asked questions
Answers to common questions about balcony waterproofing in Singapore.
Many balcony leaks can be treated without removing the existing tiles, for example with flood infusion, PU injection, or re-grouting and tile sealing. Non-hacking methods are not suitable for every situation: if the existing waterproofing layer or tiles are badly damaged, hacking and re-tiling may still be needed. This is checked during your free inspection.
For urgent cases, you can get a same-day or next-day inspection and repair. WhatsApp photos of the leak so the urgency can be assessed quickly.
Common signs include water stains on the ceiling or walls below, peeling or bubbling paint, mould, areas that stay damp after rain, cracked tiles or grout, water pooling, and white chalky deposits (efflorescence). An inspection helps find the likely source.
It depends on where the water is coming from. Options include PU injection and grouting for cracks, flood infusion for tiled balcony floors, re-grouting and tile sealing, membrane waterproofing, drainage improvement, and hacking and re-tiling when the waterproofing layer cannot be repaired. The proposed method and its warranty terms are explained before work begins.
A proper repair targets the identified source of the leak, but results depend on the actual cause, site condition and repair scope. Assessing the area first lowers the risk of treating only the visible symptoms.
The cost depends on the size of the balcony, the cause and extent of the leak, accessibility, materials and scope of repair. The on-site inspection is free with no obligation, and you receive a quotation once the work required has been assessed.
Contact information
Thank you for considering WaterproofingGuy.sg. You can usually expect a reply on WhatsApp within 12 hours.
- WhatsApp / Telegram +65 9001 1606
- contact@waterproofingguy.sg
Have a Balcony Leak? Get It Inspected Before It Gets Worse.
Whether water is seeping into the unit below or pooling on your balcony floor, find out what repairs are needed before committing to the work. The inspection is free, with no obligation.
Complete the enquiry form and you will be contacted to discuss the next steps.
