Filter and cartridge replacement
Best Water Filter Replacement Service in Dhaka
We replace expired filters, cartridges, and membranes with sealed genuine components matched to your purifier. The technician visit and replacement labour cost ৳299, and a standard service takes about 60 minutes. One of our 24 technicians targets arrival within 90 minutes of booking confirmation.
90-minute arrival targetAfter booking confirmation
৳299 visit and labourFilter price approved separately
Sealed genuine filtersBrand and model matched
7-day service guaranteeReplacement workmanship protected
Check your filters
6 signs your water purifier filters need replacement
Changes in flow, taste, smell, colour, or purified-water TDS tell us where to start. We test each filtration stage and show you which component has reached the end of its working life.
Water flow has slowed down
A blocked sediment filter or carbon cartridge restricts water before it reaches the RO membrane. We check the full water path because low pressure, a weak pump, or low tank pressure creates the same symptom.
Water tastes or smells different
An exhausted carbon filter stops controlling chlorine, odour, and compounds that affect taste. An old post-carbon cartridge or an unclean storage tank also changes the final water.
The sediment filter has turned dark
The sediment filter collects rust, sand, silt, and suspended particles. When it turns dark and flow drops, it is time for an inspection.
Purified-water TDS has increased
Rising TDS points us toward the RO membrane, its seals, water pressure, or an internal bypass. We compare inlet and purified-water TDS before recommending a membrane.
The pump runs longer than before
Blocked pre-filters starve the RO membrane of water and keep the booster pump running. That extra load also strains the SMPS adapter and pressure switches.
The service date has passed
Sediment, carbon, membrane, mineral, alkaline, and post-carbon stages do not expire together. Your water source and daily use decide how quickly each stage wears out, so the date should trigger an inspection.
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Every filtration stage
Which water purifier filters do we replace?
We replace any compatible filter, cartridge, membrane, or treatment component for supported purifier brands. We match the stage, size, flow rate, connector, brand, and model before opening the seal.
Sediment pre-filter
Catches rust, sand, silt, and visible particles before they reach the carbon stages, pump, and RO membrane.
GAC carbon filter
Controls chlorine, odour, and compounds that affect taste while protecting the RO membrane from chlorine exposure.
CTO carbon block
Provides finer carbon filtration before water reaches the membrane and controls chlorine, taste, and odour.
Post-carbon filter
Treats water after the storage tank and before the faucet to keep the final taste and smell consistent.
Mineral and alkaline cartridges
Adjust the water after RO treatment. We match capacity, flow direction, and connection size to the purifier.
UF membrane and UV lamp
Handle separate treatment jobs. We match the UF stage and follow the UV lamp manufacturer’s rated operating life.
RO membrane
Removes most dissolved solids. We judge its condition through TDS rejection, pressure, seals, and output flow.
WPSBD Filter-Match Replacement
Our 4-step water purifier filter replacement process
WPSBD Filter-Match Replacement starts with measurements and ends with a tested purifier. You see the old filter, sealed replacement, price, and final readings.
- 01
We measure flow, pressure, and TDS
We check inlet pressure, purified-water flow, and TDS at the inlet and outlet. These readings separate a blocked filter from pump, tank, valve, or membrane faults.
- 02
We inspect each filtration stage
We switch off the power, close the inlet valve, and release system pressure. Then we inspect the filters, membrane, O-rings, housings, and visible connections.
- 03
You review the filters and price
We show you the stages that need replacement and their sealed genuine filters. You receive one complete price and decide which replacements should go ahead.
- 04
We replace, flush, and test
We fit the approved filters in the correct sequence and flush each new stage. Then we test pressure, flow, leakage, automatic operation, and purified-water TDS.
Replace what is due
Each filtration stage has a different service life
Sediment filters, carbon cartridges, post-carbon filters, and RO membranes do different jobs. They do not wear out at the same speed.
A sediment cartridge often reaches its limit while the RO membrane still delivers a strong TDS rejection rate. High output TDS points to a different decision, even when the pre-filters look clean.
- Visible filter condition
- Flow and inlet pressure
- Pump running time
- Taste and smell
- Inlet and purified-water TDS
- RO membrane rejection rate
Why WPSBD
Why choose WPSBD for water purifier filter replacement?
Correct filter matching, sealed components, approved pricing, and measurable testing remove guesswork from every replacement.
Correct filters for your purifier
We match the filter, membrane, size, stage, flow rate, and connector to your purifier’s brand and model.
Sealed genuine components
You see the sealed filter before we open it. We use genuine cartridges and membranes for every supported brand.
One price before replacement
We quote every required filter and give you one complete total before we fit anything.
Tested before handover
We check pressure, flow, leakage, automatic operation, and purified-water TDS after replacement.
Complete filter service
What does our filter replacement service include?
The ৳299 service charge covers our visit, inspection, and replacement labour. You pay separately for the filters, cartridges, membranes, or components you approve.
- Purifier and filtration-stage inspection
- Inlet water-pressure check
- Purified-water flow check
- Inlet and output TDS measurement
- Required filter identification
- Sealed replacement filter presentation
- Complete price confirmation
- Approved filter or membrane replacement
- Filter housing and O-ring inspection
- New filter flushing
- Leak, pressure, and flow testing
- Automatic operation check
- Used filter cleanup
- 7-day replacement service guarantee
TDS and filter performance
Will changing filters reduce high TDS?
Not on their own.
Sediment and carbon filters control particles, chlorine, taste, and odour, while the RO membrane performs most dissolved-solids reduction. Replacing the membrane reduces high TDS when testing confirms that it has lost rejection performance.
- RO membrane rejection
- Membrane seals and fitting
- Feed-water pressure
- Flow restrictor operation
- TDS controller setting
- Blending or bypass flow
For a measured report on source water and purifier output, book water quality and TDS testing.
Brands
Genuine filters for supported purifier brands
We replace filters and membranes for RO, UV, UF, and multi-stage purifiers used across Dhaka, including Heron, Lan Shan, Kent, Pureit, AO Smith, Livpure, Ultima, Deng Yuan, and other supported models.
Share the brand, model number, filter photo, or cartridge code when you book.
View all brandsCoverage
Filter replacement across Dhaka
Our 24 technicians provide water purifier service in Dhaka and replace filters for homes and businesses in Gulshan, Banani, Uttara, Dhanmondi, Mirpur, Bashundhara R/A, Mohammadpur, Badda, Motijheel, Wari, and surrounding Dhaka areas.
Share your area, preferred time, purifier brand, and current symptoms when you book.
View all locationsMore purifier care
Related services
Use water quality testing for measured source and output TDS, repair service for pump or valve faults, and annual maintenance for planned care throughout the year.
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Water Quality Testing
Measure source and purified-water readings before or after replacement to understand the result.
Water Purifier Repair
Diagnose low flow, leakage, pump, power, or control faults that a filter change cannot solve.
Annual Maintenance (AMC)
Keep future filter changes and operating checks on one planned annual service schedule.
Customer stories
What Dhaka customers say about our filter replacement
Feedback from customers who saw the filter condition, approved the price, and checked the final readings.
The technician checked the flow and TDS before opening the purifier. He showed me that only the sediment and carbon filters needed replacement, then confirmed the total price.
I saw the sealed cartridges before the technician fitted them. The water flow improved, and he showed me the final TDS reading before leaving.
They cleaned the filter housings, checked the O-rings, and tested every connection for leaks. The final amount matched the price I approved.
Filter guides
Understand your purifier’s replacement cycle
Practical guidance on replacement timing, filtration-stage roles, and the right response to high TDS.
Replacement guide
Water Purifier Filter Replacement Schedule for Dhaka Homes
Compare inspection and replacement periods for sediment, carbon, UV, UF, mineral, and RO membrane stages around Dhaka water conditions.Read article ↗Filter guide
Sediment Filter vs Carbon Filter vs RO Membrane
Learn what each filtration stage removes, how performance changes with age, and which test points to replacement.Read article ↗TDS guide
Will Changing Water Purifier Filters Reduce High TDS?
Learn why pre-filters and RO membranes affect different measurements and when a membrane needs attention.Read article ↗FAQ
Filter replacement: questions we get asked
How much does water purifier filter replacement cost in Dhaka?+
We charge ৳299 for the technician visit and replacement labour. You pay separately for approved filters, cartridges, and membranes. We inspect the purifier, show you each sealed component, and give you one complete price before opening or fitting a replacement filter.
Do I need to replace all water purifier filters together?+
No. Each stage has a different job and working life. We inspect sediment, carbon, post-carbon, mineral, alkaline, UV, UF, and RO stages separately. You see our measurements and each filter’s condition, then approve only the replacements your purifier needs.
Which filters and cartridges do you replace?+
We replace sediment, GAC, CTO, post-carbon, mineral, alkaline, UF, UV, and RO membrane stages. Our technician matches the brand, model, size, filtration stage, flow requirement, and connector before opening a sealed genuine filter for any purifier brand we support in Dhaka.
How long does water purifier filter replacement take?+
A standard filter replacement takes about 60 minutes after our technician arrives. That covers pressure, flow, and TDS measurements, filter inspection, price approval, replacement, flushing, leak checks, and final testing. We target arrival within 90 minutes of booking confirmation.
Will changing the filters reduce high TDS?+
Not on their own. The RO membrane performs most TDS reduction, while sediment and carbon filters protect it and improve flow, taste, and odour. We test membrane rejection, pressure, seals, restrictors, bypass flow, and controller settings before recommending a replacement.
Book today
Replace the filters your purifier actually needs
We inspect every stage, show you the sealed replacements, and confirm one complete price before we start.