Professional underground RCC and overhead plastic tank cleaning for all Scheme 33 sectors — 7-A, 7-B, 18-A, 33-A, 33-B and surrounding blocks. Certified team, WHO-approved disinfectants, same-day slots available 7 days a week.
Scheme 33 is one of Karachi's fastest-growing residential areas, stretching across multiple sectors in the northeastern part of the city. Unlike established localities with direct KWSB pipeline access, much of Scheme 33 still depends on water tanker supply for daily household needs — which creates a water quality challenge that directly affects the cleanliness and safety of every storage tank in the area.
Tanker water, by its nature, carries higher sediment loads than piped supply. As it is pumped into underground RCC tanks and overhead plastic tanks, suspended particles settle and accumulate on tank floors and walls. Over weeks and months, this sediment layer becomes a breeding ground for bacteria, algae, and in some cases parasites. In Scheme 33 households, where tank refilling happens frequently, this cycle accelerates the contamination timeline significantly — tanks that might need cleaning every 6 months in other parts of Karachi may need attention every 3 to 4 months here.
Our team has direct experience servicing properties across all sectors in Scheme 33. We understand the typical tank setups in this area — large underground RCC tanks built for water storage capacity, combined with 500–1,000 litre overhead plastic tanks for daily distribution. We handle both in a single visit.
We serve all sectors and localities within and adjacent to Scheme 33. If your area is listed below, we serve you — same day in most cases.
With tanker water supply common in Scheme 33, contamination builds faster than most residents realise. These signs mean you need to act.
Active bacterial contamination. Don't use the water for drinking or cooking. Call for same-day service in Scheme 33.
Water-borne illness from contaminated tank water is common in Scheme 33. If multiple family members are affected, check the tank first.
High sediment load in tanker water settles and mixes back in when tanks are refilled. Visible discolouration means the sediment layer is thick enough to disturb water quality.
In Scheme 33, where tanker refills happen frequently, 6 months without cleaning is already overdue. The sediment and biofilm layer grows with every refill cycle.
Algae growth on tank walls is a direct sign of bacterial contamination. Overhead plastic tanks in Scheme 33 are especially prone to this due to frequent tanker refills.
For tanker-supply households in Scheme 33, 3–4 months is a sensible maximum interval. Plan ahead rather than waiting for visible signs.
Underground RCC tanks, overhead plastic tanks, or commercial buildings — we handle everything in a single visit to your Scheme 33 property.
Full drain, manual scrubbing of walls and floor, high-pressure jet wash, chlorine-based disinfection with approved chemicals, clean water rinse, and refill confirmation. Suited to the large-capacity underground tanks common in Scheme 33 residential plots.
💰 Use calculator for pricingDrain, scrub, and disinfect overhead tanks of all sizes — 200L to 1,000L. We remove algae stains, sediment caking, and bacterial biofilm from tank walls and base. Includes reinspection after disinfection before the lid is closed.
💰 Use calculator for pricingWe service large shared underground tanks in multi-storey buildings, plazas, and commercial properties throughout Scheme 33. We coordinate with building management, issue a full service certificate, and offer bulk pricing for regular maintenance contracts.
💰 Free survey required — call us5-step process. No shortcuts. Same procedure for every property we service.
Technician arrives, inspects the tank condition, identifies contamination type, and confirms the price before doing any work. Free and no-obligation.
All water is pumped out completely. We ensure the tank is fully empty before proceeding to scrubbing — no partial drains.
Tank walls, corners, and floor are manually scrubbed to remove sediment, biofilm, algae, and scale that pressure washing alone cannot remove.
High-pressure jet wash followed by WHO-approved disinfectant application. Disinfectant is left to work for the required contact time, then flushed out completely.
Tank is refilled and visually checked. Client signs off on the work. Service certificate issued on request for commercial clients and apartment buildings.
Select your property type, tank type, and tank size to get an instant estimate for your Scheme 33 home. No need to call first for standard residential properties — get the number in under a minute.
Calculate My Price Now →Six reasons we keep getting called back — by households and building managers alike.
Since 2007 we have cleaned thousands of tanks across Karachi. We know the water quality issues in Scheme 33 specifically — tanker sediment, bacterial contamination, algae growth — and what it takes to address them properly.
Non-hazardous, food-grade disinfectants on every job. No cheap industrial chlorine that leaves smell or deposits in your water. Safe for your family and your plumbing.
What you are quoted after inspection is exactly what you pay. No extra charges on-site, no upselling. You pay after the job is done — not a rupee before.
Team dispatched to Scheme 33 daily. Call before 12pm for same-day. Emergencies — contamination, sewage smell, sudden discolouration — within 2–4 hours.
Legitimate, documented, registered company. We provide proper tax invoices — important for commercial clients, schools, clinics, and apartment buildings that need documented maintenance records.
Technician checks your tank, identifies issues, and confirms the final price before doing anything. Zero obligation if you're not satisfied. No pressure tactics.
Real feedback from Scheme 33 residents and property managers.
"We rely on tanker water in Sector 7-A and the tank was never properly cleaned before. Karachi Tank Cleaning came the same day I called, drained the underground tank fully, and showed me the sludge at the bottom before cleaning. The difference in water smell after was immediate. Highly recommended."
"I manage an apartment building in Sector 18-A with a large underground tank. These are the only people who handled the job professionally — they coordinated with residents, worked in the morning before water demand peaked, and provided a proper service certificate. We have them on a regular schedule now."
"Called on a Friday evening because the water from our taps had started smelling bad. They responded within 3 hours, cleaned both the underground and overhead tanks, and the problem was completely gone by that night. Honest pricing, no drama, excellent work."
Straight answers. No filler.
Find your area below — same professional service, same team, same standards.