What's really inside your home's water tank?
Sludge, rust and algae build up in overhead and underground tanks long before anyone notices — and it's your family drinking, cooking and bathing in it. SRS runs a 6-stage mechanized clean at your home, no digging, no long shutdowns, no guesswork.
Apartment ya housing society mein rehte hain? Apartment tank cleaning yahan dekhein →
Clear-looking water isn't the same as clean.
Overhead and underground tanks at independent homes collect sediment, rust flakes and biofilm long before you see or smell anything wrong. In most homes, tanks go years between proper cleans — because arranging a crew, machines and access sorted is a hassle nobody wants to own.
What we regularly find inside uncleaned home tanks
These are actual photos and videos from our recent visits across Kolkata — not stock images. This is what builds up (and what can crawl in) when a tank goes unchecked for too long — from dead birds and insects to, in some homes, live snakes and lizards that enter through unsealed lids and cracks.
🎥 A real visit — see the condition before our team started work
🐍 A live snake found inside an uncleaned home tank — more common than most homeowners realise
Real proof — before and after
An actual overhead tank from one of our Kolkata jobs — before the crew arrived, and after the 6-stage clean.
🎥 A real before/after clip from a recent home visit
More real jobs from our recent visits
Our 6-stage cleaning process
The same sequence every time, so your home gets a consistent, verifiable result — not a quick rinse.
Mechanized De-watering
The manhole and surroundings are cleaned of dirt, mud and algae. Water below the foot-valve level is then pumped out using special de-watering equipment.
Sludge Removal
Sludge settled on the tank floor is sucked out completely using our special sludge-pumping equipment.
High-Pressure Cleaning
Walls and ceilings are thoroughly cleaned with high-pressure jet cleaners, removing deposits, algae and contaminants that let microbial growth take hold.
Vacuum Cleaning
An industrial vacuum cleaner removes the resultant contaminants, leaving the tank absolutely speck-free.
Anti-Bacterial Treatment
Walls and ceilings are made totally sterile from bacterial contamination using specially developed anti-bacterial agents.
UV Radiation Sterilization
Final sterilization and disinfection is done using a specially developed UV radiator, killing any suspended or floating bacteria remaining in the tank.
Currently working across Kolkata's homes
A few of the independent homes where our crews have been on-site recently.
Areas we serve across Kolkata
Independent homes, bungalows & apartments — here are some of the areas we're regularly booked in.
+ many more areas across South, East, North & Central Kolkata. Not sure if we cover yours? Just ask on WhatsApp →
Tell us about your tank
Fill this in and it opens WhatsApp with your details ready to send — no typing everything out yourself. We typically reply within 30 minutes.
Why book with SRS?
- Replies within 30 minutes on WhatsApp
- ISO 9001:2015 certified, safe for kids & pets
- GST invoice & money receipt sent the same day
See more of our work on YouTube
Real jobs, filmed on-site across Kolkata.
Overhead tanks, underground reservoirs & pipeline disinfection
Safe for households with kids & pets, across Kolkata
What homeowners are saying
"Excellent staff behaviour... cleaning done super professionally... no hidden terms and conditions, on time arrival... you get exactly what you pay for.... I'm fully satisfied 😊 hope to call them again when needed."
"Great work done by SRS Tank Cleaning team! Their deep cleaning efforts with sanitization process were evident, and the results were impressive... 👍👍👍"
"Very professional service. Service personnel are well trained and very prompt. Cleaning is excellent. I wish a successful journey ahead. Thank you."
An underground tank clean at a home in Kalighat
At an independent home in Kalighat, the underground reservoir hadn't been cleaned in years. The moment our team opened the manhole cover, the water inside was cloudy and discoloured, with a visible layer of mud and sludge settled at the base — exactly the kind of build-up homeowners never get to see from above.
Our crew ran the full 6-stage mechanized clean on site: draining out the contaminated water and sludge, setting up the pressure-jet and vacuum equipment at the manhole, blasting the interior walls and floor clean, applying an anti-bacterial wash, and finishing with a UV radiation sterilization pass. By the end of the visit the tank was spotless, sanitised and ready to refill the same day — every step is right there in the photos.
Book the Same ServiceWhat to expect, step by step
Organized from confirmation to the next visit — nothing left to guesswork.
Booking confirmed
Our back-office team calls you to confirm the date and time, with a follow-up message on WhatsApp.
Reminder, 1 day before
Our telecaller calls a day in advance so your home is ready for the crew.
Cleaning & GST invoice
Right after the job, we send a GST or Non-GST invoice as a softcopy on WhatsApp.
Payment & money receipt
We accept Cash, UPI, Online transfer, Cheque and NEFT — and send a softcopy money receipt on WhatsApp once payment is received.
Next cleaning, reminded
We send a WhatsApp reminder when your next cleaning is due — you don't have to track it yourself.
Frequently asked questions
SRS - Water Tank Cleaning & Solution typically completes an overhead tank at an independent home — RCC or PVC up to 2000L — in 40 minutes to an hour. Underground tanks/sumps run a little longer, usually 1 to 1.5 hours. The exact time shifts with how much sediment has built up and the tank's size.
Yes — SRS - Water Tank Cleaning & Solution cleans overhead tanks, underground sumps and reservoirs, and the connecting pipelines at independent homes and bungalows, all in the same visit.
Yes. SRS - Water Tank Cleaning & Solution uses approved, safe anti-bacterial agents and UV radiation sterilization as part of our 6-stage process, safe for drinking-water storage and for households with children and pets.
SRS - Water Tank Cleaning & Solution recommends every 6 months to keep water clean and safe, especially given Kolkata's humidity and hard water. If your tank collects heavy sediment or algae faster, schedule it sooner.
Call or WhatsApp SRS - Water Tank Cleaning & Solution at 9007718983 with your area, tank type and size — we'll send a quote right away. Once you confirm, we lock in your slot.
We've been cleaning tanks for Kolkata homes since 2017. Every team has 2 experienced cleaners, and we send more teams together for larger tanks. SRS is an ISO 9001:2015 certified company.
Cost depends on your tank's size, type, and how many tanks need cleaning. Message SRS - Water Tank Cleaning & Solution on WhatsApp with these details and we'll share an exact quote within minutes — no hidden charges.
SRS - Water Tank Cleaning & Solution covers independent homes, bungalows, apartments and societies across South, East, North and Central Kolkata — including Behala, Garia, New Town, Salt Lake, and 130+ more localities. Send us your area name and we'll confirm right away.
We typically reply within 30 minutes on WhatsApp and can usually schedule a visit within a day or two, depending on your preferred slot.
Our 10% Raksha Bandhan discount on home water tank cleaning is valid for bookings made between 22 and 28 August. Message us on WhatsApp to check current offers.
Get your home's tanks cleaned properly
Send your area and tank details on WhatsApp — we typically reply within 30 minutes with timing and a quote.