Waterproofing in Sion, Mumbai
Atlanta Waterproofing & Protective System provides waterproofing and building restoration across Sion (F/North Ward, pincodes 400022). The locality records around 2,200 mm of rain annually and is dominated by co-operative housing societies and hospital and institutional campuses in the 25-65 years range. We are roughly 35 minutes away.
What makes Sion different
One of Mumbai's chronic monsoon flooding points. Repeated inundation at plinth level means ground-floor treatment and rising damp control are recurring requirements rather than exceptions.
The building stock here is principally co-operative housing societies, hospital and institutional campuses, government colonies, low-lying development, mostly in the 25-65 years band. The failure patterns that follow from that are chronic monsoon flooding in low-lying pockets, ageing society and colony terraces, hospital wet-area and duct leakage.
We work throughout the area, including around Sion Hospital, Sion Fort, Sion Circle, Dharavi boundary.
What we do in Sion
- Terrace Waterproofing in Sion
Terrace waterproofing is the application of a continuous water barrier across a roof slab, laid to a fall so rainwater drains rather than ponds.
- Basement Waterproofing in Sion
Basement waterproofing protects a below-grade structure against groundwater under hydrostatic pressure.
- Bathroom Waterproofing in Sion
Bathroom waterproofing seals the sunk slab and wet-area walls so water from daily use cannot reach the flat below.
- Toilet Waterproofing in Sion
Toilet waterproofing seals the sunken slab, wall skirting and pipe penetrations of a WC area so water cannot migrate into the structure or the flat below.
- Brick Bat Coba Waterproofing in Sion
Brick bat coba is the traditional Indian terrace system: broken brick pieces bedded in waterproofed cement mortar, laid to a fall and finished with china mosaic or IPS.
- China Mosaic Waterproofing in Sion
China mosaic is a finish of broken glazed ceramic tile pieces set in waterproofed cement mortar over a terrace.
- APP Membrane Waterproofing in Sion
APP membrane is an atactic-polypropylene-modified bitumen sheet, torch-applied to a primed substrate with lapped and sealed joints.
- SBS Membrane Waterproofing in Sion
SBS membrane is a styrene-butadiene-styrene-modified bitumen sheet.
- HDPE Membrane Waterproofing in Sion
HDPE membrane waterproofing uses a high-density polyethylene sheet, generally pre-applied below rafts and against retaining walls before concrete is poured.
- TPO Membrane Waterproofing in Sion
TPO is a single-ply thermoplastic polyolefin membrane whose seams are hot-air welded rather than glued, producing a homogeneous joint as strong as the sheet.
- Polyurea Waterproofing in Sion
Polyurea is a spray-applied, fast-setting elastomeric coating that gels within seconds and forms a seamless, high-elongation, highly abrasion-resistant membrane.
- PU Grouting in Sion
PU grouting injects polyurethane resin under pressure into a leaking crack or joint.
- Injection Grouting in Sion
Injection grouting forces a cementitious or epoxy grout under pressure into cracks, voids and honeycombed concrete to restore continuity and block water paths.
- Overhead Water Tank (OHWT) Waterproofing in Sion
Overhead water tank waterproofing lines the internal faces of an elevated potable-water tank with a non-toxic, water-resistant system, and treats the external faces and base where leakage tracks into the structure below.
- Underground Water Tank (UGT) Waterproofing in Sion
Underground tank waterproofing must resist water in both directions — the stored water pushing out, and groundwater pushing in.
- Swimming Pool Waterproofing in Sion
Swimming pool waterproofing lines the pool shell so treated water cannot escape into the structure and so chemically treated water cannot attack the concrete.
- Podium Waterproofing in Sion
Podium waterproofing protects a landscaped or trafficked deck sitting above occupied space — typically parking, a clubhouse or retail.
- Lift Pit Waterproofing in Sion
Lift pit waterproofing seals the lowest point of a building's shaft, which sits below the water table in most of Mumbai and collects anything that runs down the shaft.
- External Plaster & Painting in Sion
External plaster and painting is the building's first line of defence against driving rain.
- Building Restoration in Sion
Building restoration is the structural rehabilitation of an ageing or distressed building — diagnosing why the concrete is failing, repairing it properly, and protecting it so it does not fail again.
Waterproofing in Sion — questions we get asked
How quickly can you reach Sion?
Our office is in Jogeshwari West, about 10 km from Sion, and we normally allow around 35 minutes in off-peak traffic. We also work regularly in Bandra East, Wadala, Dadar, so a crew is often already in this part of the city.
Why do buildings in Sion leak more than elsewhere?
Sion records roughly 2,200 mm of rain a year, measured at the IMD Colaba observatory, island city. Combined with co-operative housing societies and hospital and institutional campuses in the 25-65 years range, the recurring problems here are chronic monsoon flooding in low-lying pockets and ageing society and colony terraces. It is less that Sion leaks more, and more that it leaks in a particular and fairly predictable way.
Which BMC ward is Sion in, and does that matter?
Sion falls under F/North Ward (F/North), covering pincodes 400022. It matters practically rather than technically: ward boundaries govern which office handles permissions, notices and any municipal correspondence a society may need during major repair work.
Sion is not on the coast — is waterproofing less critical here?
No, the failure mode simply differs. Without direct salt exposure, chloride-driven corrosion is slower, but Sion still takes about 2,200 mm of rain annually. The dominant problems here are chronic monsoon flooding in low-lying pockets and ageing society and colony terraces, which are just as capable of ruining a top-floor flat.
Is Sion on reclaimed land, and what does that mean for a basement?
Yes, substantially. Reclaimed ground retains water, continues to settle for decades, and puts a sustained hydrostatic head against below-grade structures. In practice that means a basement here needs a continuous wrapped barrier and water stops at every construction joint, plus working sump and dewatering provision. An internally applied coating on its own is being asked to hold back pressure from the wrong side.
Book a free inspection in Sion
An engineer visits, traces the source, and gives you a written scope. Our office is in Jogeshwari West, about 10 km from Sion — normally around 35 minutes outside peak traffic.
Mon–Fri 08:00–18:00 · Sat 09:00–16:00 · Jogeshwari West