Best Waterproofing in Bangladesh
Waterproofing Company in Bangladesh
Every monsoon, the same story repeats. Water drips from the ceiling. Walls turn damp. Paint starts peeling off.
Bangladesh gets more than 2,000 mm of rain a year. A roof without protection won’t stay dry for long.
Fountech is a trusted waterproofing company in Bangladesh, serving clients since 2006. We work on roofs, basements, water tanks, bathrooms, balconies, swimming pools and factory buildings.
New building or an old leak, we start with a site visit. We find where the water is coming in. Then we pick the system. You pay for what your building needs. Nothing extra.
Need a quote? Ask us for a free site visit, or see our recent projects.
Waterproofing for Concrete
What Is Waterproofing?
Waterproofing means stopping water from getting into a structure. It is done with a coating, a membrane or a chemical mixed into the concrete.
Many people think concrete is waterproof. It isn’t. Concrete has tiny pores, and it cracks over time. Water slips in through these gaps. It also gets in through joints and pipe openings.
Once water is inside, the damage starts. Plaster falls off. The rod inside starts to rust. Small cracks turn into big ones.
There are three common ways to stop it:
- Waterproofing coating: a liquid layer brushed, rolled or sprayed on the surface.
- Waterproofing membrane: a ready-made sheet laid on roofs, basements or foundations.
- Waterproofing admixture: a chemical added to the concrete mix during casting.
Which one is right depends on where the water comes from. That’s why we check first and decide later.
Why Waterproofing Matters
Why Does Your Building Need Waterproofing?
A leak is never just a leak. It ruins the ceiling, the walls and the steel inside. Fixing it later costs far more than stopping it now.
How It Protects
- Blocks water: Stops leaks, seepage and damp patches.
- Grips the surface: Bonds well with concrete, brick and plaster.
- Covers hairline cracks: Flexible coatings stretch over small cracks.
- Handles our weather: Works through hot sun, heavy rain and high humidity.
- Lasts for years: A well-done job protects the slab for a long time.
What You Gain
- Dry ceilings: No more buckets under the drip during the monsoon.
- Safe rods: The steel inside the concrete stays free from rust.
- Clean walls: Paint and plaster stay where they belong.
- Lower repair bills: You stop paying for the same leak every year.
- Cooler top floor: Add heatproofing and the roof holds less heat.
Where You Need It
- Roof: Keeps rainwater from coming through the slab.
- Bathroom: Keeps water out of the walls and the flat below.
- Water tank: Stops leaks in overhead and underground tanks.
- Basement: Keeps groundwater out.
- Balcony and terrace: Protects open areas from rain.
- Swimming pool: Holds the water in and protects the structure.
Leakage Problems
Common Water Leakage Problems in Bangladesh
Most leaks we see in Bangladesh start from a handful of places. Many of them come back because someone painted over the problem. Nobody found the source.
Here is what people call us for most:
- Roof leaking after the first heavy rain
- Damp patches and salt marks on walls
- Water dripping from the ceiling under a bathroom
- Overhead or underground water tank leaking
- Basement walls seeping water
- Rainwater coming in from the balcony or terrace
- Cracks letting water through the slab
- Leaks at construction joints and pipe openings
- Old waterproofing that has failed
We find the cause of the leak first. Only then do we choose the treatment.
Quick Guide
Which System Suits Which Area?
Not sure which one to pick? Find your area below and see what usually works there. We confirm the final choice after a site visit.
| Area | Suitable Waterproofing System |
|---|---|
| Concrete roof | PU, acrylic, cementitious or bituminous membrane |
| Industrial roof | PU, acrylic or torch-applied membrane |
| Balcony & terrace | PU or acrylic coating |
| Bathroom | Cementitious or liquid membrane |
| Water tank | Cementitious or crystalline system |
| Swimming pool | Cementitious or PU |
| Basement | Cementitious, PU or bituminous membrane |
| Foundation | Bituminous membrane (self-adhesive or torch-applied) |
Waterproofing Systems
Types of Waterproofing Systems
No two buildings are the same. A roof under full sun needs something different from an underground tank. Here are the systems we use most.
A water-based waterproofing coating for exposed roofs and terraces. It stays flexible under hot sun and heavy rain. Easy to apply and easy to recoat later. Learn more about acrylic roof coating.
A cement-based coating that bonds tightly with concrete. A good fit for bathrooms, water tanks, basements and swimming pools. It works well in areas that stay wet. Learn more about cementitious waterproofing.
A liquid coating that dries into one joint-free layer. It stretches as the slab moves and bridges small cracks. A strong choice for roofs and terraces. Learn more about PU waterproofing.
A peel-and-stick bitumen sheet. No flame needed. We use it on foundations, basements and roofs where a sheet membrane makes more sense. Learn more about bituminous membrane waterproofing.
A 3 mm modified bitumen sheet, bonded to the slab with a gas torch. Solid protection for flat roofs and industrial buildings. It handles rough weather well. Learn more about torch-applied membranes.
A thicker 4 mm sheet for roofs that face heavy rain, foot traffic or standing water. More bitumen means more protection where the risk is high. Learn more about 4 mm bitumen membranes.
How We Work
Our Waterproofing Process
Site Inspection
We visit the site and look at everything. Leaks, damp spots, cracks, joints and drainage.
Surface Check
We check the concrete, its moisture level and any old coating. This tells us what the surface can take.
Surface Preparation
We clean, grind and repair the surface. Waterproofing only lasts when it sticks properly.
Crack & Joint Sealing
Cracks, joints and pipe openings get sealed first. Most leaks start right here.
Choosing the System
We pick the waterproofing chemical or membrane that suits the job. We also explain the options and the cost.
Application
Our trained team applies the system. We keep the right thickness and the right number of coats.
Final Testing
We check the finished work. Where possible, we do a water test before handover.
Aftercare Support
Our job doesn’t end at handover. We share maintenance tips and stay on call if you need us.
Waterproofing Price
Waterproofing Price in Bangladesh
Waterproofing in Bangladesh usually costs ৳40 to ৳90 per square foot. That covers both material and work.
Where your job falls in that range depends on a few things:
- The system: Cementitious sits at the lower end. PU and torch-on membranes cost more.
- The surface: An old, cracked roof needs more preparation.
- Coats: More coats mean more material.
- Area: Bigger jobs often get a better rate per square foot.
Looking for the waterproofing chemical price in Bangladesh only? That depends on the product and pack size. Call us for the current rate.
Don’t choose by the lowest price alone. A cheap job that fails costs more in the end. For an exact price, book a free site visit.
Waterproofing Applications
Where Can You Use Waterproofing?
Any part of a building that touches water needs protection. From homes in Dhaka to factories and bridges, here are the areas we waterproof most.
Roof Waterproofing
Roof waterproofing with heatproofing. Stops leaks and keeps the top floor cooler.
Basement Waterproofing
Keeps groundwater out. Your basement and car parking stay dry.
Water Tank Waterproofing
Stops leaks in overhead and underground tanks. The tank structure stays strong for longer.
Bridge & Flyover Waterproofing
Protects bridge and flyover decks from water, rust and wear.
Swimming Pool Waterproofing
Holds the water in and keeps seepage out of the pool structure.
Bathroom Waterproofing
Waterproofing coating for bathroom floors and walls. No more damp patches next door or in the flat below.
Industrial Roof Waterproofing
Roof waterproofing for factories and warehouses. Made for large areas and heavy rain.
Balcony & Terrace Waterproofing
Stops rainwater from seeping into rooms and the floor below.
Why Fountech
Why Choose Fountech for Waterproofing?
Fountech has been in this trade since 2006. We work in industrial flooring, waterproofing, heatproofing and concrete repair. We supply the material and we apply it too. So one team takes responsibility for the whole job.
Why clients keep coming back:
- 20 years of hands-on work in Bangladesh
- Our own technical and application team
- Material supply and application in one place
- Homes, offices, factories and commercial buildings
- Experience with coatings, membranes and admixtures
- System chosen after a site check, not before
- Proper surface preparation on every job
- Support after the work is done
On the flooring side, we have finished more than 2,000 projects covering over 15 million square feet. We bring the same care to every waterproofing job.
Frequently Asked Questions
What is waterproofing, and how does it work?
Waterproofing is a coating, membrane or chemical that stops water from entering concrete. It protects roofs, basements, water tanks, walls and foundations from leaks and damp.
Which is the best waterproofing company in Bangladesh?
Look for a company that checks your site before selling you a product. Fountech has been doing this since 2006. We supply the material and do the application, so one team answers for the result.
Why does every building in Bangladesh need waterproofing?
Bangladesh gets over 2,000 mm of rain a year. Add high humidity and floods. Without waterproofing, concrete cracks, rods rust and repair bills keep growing.
What types of waterproofing are available in Bangladesh?
The main ones are acrylic coating, cementitious coating, PU coating, self-adhesive bitumen membrane and torch-on bitumen membrane. For roofs, PU coating and torch-on membrane are popular choices. Fountech works with all of them.
What is the waterproofing price in Bangladesh?
Waterproofing usually costs ৳40 to ৳90 per square foot in Bangladesh. The final price depends on the system, the surface condition and the total area. We give an exact quote after a site visit.
How long does waterproofing last?
A properly done job lasts 5 to 15 years or more. It depends on the material, the workmanship, the weather and regular maintenance.
