DiLsi Construction & Engineering
DiLsi
DiLsi Construction & Engineering Background Mobile

Building
What Matters.
For Generations.

Construction & Engineering
Excellence You Can Trust.

About Us

We build durable,
code-compliant spaces.

Building Construction

We construct custom residential homes, retail outlets, and commercial offices, delivering durable, high-quality structures tailored to modern living.

Civil Engineering

Our engineering team executes critical infrastructural works, including concrete foundations, structural columns, road networks, and drainage systems.

CIDA
GRADE C-9Accredited Contractor
DiLsi Construction engineering team shaking hands on site
Engineering Projects
Delivered Successfully
10+
Years of Dedicated
Industry Excellence
5+
Workplace Safety
& Compliance Record
100%
Modern building constructed by DiLsi

TRUSTED BY INDUSTRY LEADERS.

Apex Residences
Metro Infra
Prime Properties
Crest Developers
Eco Villa Group
Apex Residences
Metro Infra
Prime Properties
Crest Developers
Eco Villa Group
Our Services

Civil Engineering &
Building Solutions

General Contracting

General Contracting

Project Management

Project Management

Design & Build

Design & Build

Infrastructure Development

Infrastructure Development

Civil Engineering

Civil Engineering

Site Development

Site Development

Departments

Our Departments

Survey Engineering

Survey Engineering

High-precision topographical surveying, boundary mapping, engineering setting out, and GPS/Total Station spatial analysis for civil developments.

Laboratory

Laboratory

Advanced material testing facility providing soil mechanics, concrete compressive strength, aggregate testing, and CIDA/SLS compliance verification.

Road and Building Design

Road and Building Design

Comprehensive architectural planning, structural engineering calculations, highway alignment designs, and integrated CAD/BIM modeling.

Transportation

Transportation

Transportation planning, traffic impact analysis, road network paving, heavy machinery transport, and infrastructure logistics management.

Our Projects

Building Excellence,
Engineering Trust

General Contracting

Southern Harbor Expansion

Site development and engineering for commercial marine access and logistics.

Southern Harbor Expansion
Infrastructure Development

Matara Drainage Network

Hydraulic planning and precast culvert network for regional flood control.

Matara Drainage Network

Modern hill country residence with custom concrete framing and hillside deck.

Emerald Hills Residence
DiLsi Construction background
Why Choose Us

Building Trust
Through Quality

Experienced Team

Quality & Safety

Reliable Delivery

Testimonials

Proven Success,
Trusted Partnerships

Client project reference
”

“ The team handled our commercial project with professionalism and precision from day one. They stayed on schedule, managed every detail efficiently, and delivered a space that perfectly fits our business needs. ”

Mikasa A.
Mikasa A.Business Owner
Client project reference
”

“ DiLsi Construction built our family villa in Weligama. The structural work is top-tier, CIDA standards were met, and they managed the budget perfectly without compromise. ”

Dr. Priyantha Silva
Dr. Priyantha SilvaHomeowner & Consultant
Client project reference
”

“ Their drainage network infrastructure solutions in Matara completely transformed our industrial access road during heavy monsoon seasons. Highly reliable civil engineering partners. ”

K. Wickramasinghe
K. WickramasingheProject Manager, Matara Infra
Our Team

Meet Our Leadership

Mr. Chetha Vihan

Mr. Chetha Vihan

Managing Director and Project Coordinator

Mr. Janith Lakmal

Mr. Janith Lakmal

Project Manager

Mr. Chanuth Semika

Mr. Chanuth Semika

Managing Director

DiLsi Construction background

Ready to Build With Precision?