Residential Sewage Treatment Plants in Sri Lanka
Managing wastewater efficiently is essential for preserving the environment and maintaining a sustainable future, especially in residential settings. At HECS, we provide advanced Residential Sewage Treatment Plants (STPs)designed to handle all domestic wastewater—from showers and toilets to kitchens and laundry. Our systems transform this waste into clean water that can be reused for gardening, flushing, or safely discharged into the environment.

01
Tailored for Sri Lanka's Needs
Our STPs are specifically designed to comply with Sri Lanka's environmental standards, ensuring efficient and sustainable wastewater management for residential communities.
01
Cost-Effective Solutions
HECS Residential STPs provide an affordable alternative to traditional systems, offering significant savings in installation and operational costs without compromising on quality.
01
Minimal Maintenance
With a low-maintenance design, our STPs require only periodic cleaning and desludging, saving time and reducing operational hassle for homeowners and housing communities.
01
Odor-Free and Quiet Operation
Our advanced technology ensures quiet, odorless performance, making our STPs ideal for residential areas where comfort is a priority.
01
Durability and Reliability
Built with high-quality Fiber Reinforced Plastic (FRP), our STPs are corrosion-resistant, leak-proof, and built to last, providing reliable performance for years.
01
Flexibility in Installation
Whether you need below-ground installation to save space or above-ground systems for easy access, HECS STPs offer adaptable solutions to suit your site’s requirements.
Flexible Installation Options
Below Ground Installation
Perfect for space-constrained areas, our systems can be installed under parking lots, playgrounds, or gardens, optimizing land use without compromising performance.

Above Ground Installation
For sites where below-ground installation isn’t possible, our systems can be installed above ground, offering easy access for operation and maintenance.

Packaged STPs
Robust, Reliable and Low Maintenance Solution
The compact design of HECS Domestic Sewage Treatment Plants ensures that there is minimal space requirement and disruption when the unit is installed. The unit may be installed either below ground or above ground based on the site requirements and the treated water may be used for gardening or flushing. Re-use and reclamation of sewage can help reduce the raw water consumption of residences significantly.
Applications for Residential STPs
- Housing Developments and Gated Communities
- Residential Complexes and Apartment Buildings
- Individual Villas and Homes
Why HECS is the Right Choice
- Proven Expertise : With over 25 years of experience and more than 600 successful projects worldwide, HECS is a trusted name in wastewater management.
- Comprehensive Support Network : Our strong maintenance network ensures prompt and reliable service across Sri Lanka.
- Trusted by Thousands : HECS has earned the trust of over 5,000 clients across various industries and residential sectors.
- World-Class Manufacturing : With advanced manufacturing capabilities and partnerships with leading international brands, we ensure high-quality, reliable solutions for every project.