Drainage Works & Drain Repair Contractor | Pretech Construction, Seremban

Overview

Drainage is the trade we are called back for most

A large share of our references are drain rehabilitation packages: Taman Desa Ixora and Taman Bukti in Seremban, Dataran Delima in Jempol, Taman Mambau Height, the monsoon drain embankment at Taman Sri Anggerik in Rantau, and culvert upgrading at Kg. Orang Asli Kedat in Mantin. Most came through main contractors on local authority and JPS maintenance contracts.

That kind of work teaches you to look upstream. Before quoting we walk the line of the drain to find where the water is actually coming from and where it is being held up — a new drain in the wrong place moves a flood rather than removing it.

We also build drainage as part of larger packages: full drainage systems for terrace housing schemes at Pekan Linggi and Mukim Chengkau, and for the Sri Subramaniar Balathandayuthapani Temple in Seremban.

Ask about your job See past projects

Completed concrete drain and road edge on a housing scheme.

Scope

What we handle

Surface water, subsoil and roadside drainage, new or remedial:

New reinforced concrete and precast U-drains
Box culverts, pipe culverts and crossings
Headwalls, aprons and outlet structures
Monsoon drain construction and embankment repair
Collapsed and cracked drain rehabilitation
Perimeter and roadside drainage for housing schemes
Sumps, gully traps and grating covers
Earth drain lining and rock-lined channels
Desilting and drain regrading to restore fall
Detention pond and OSD-related civil works
River and stream bank protection works
Temple, school and factory compound drainage

Site photographs

From our sites

Photographs of our own completed and in-progress work — not stock images.

Newly cast concrete headwall and culvert outlet — Cast in-situ headwall at a culvert outlet.

Concrete drain running alongside a completed road — Roadside drain and road edge, housing scheme.

Box culvert structure under construction — Box culvert crossing under construction.

Excavator working in a river channel during bank repair — Stream channel and bank works with our own excavator.

Rock-lined channel and slope protection being placed by workers — Rock-lined channel protecting a drain from scouring.

Completed gabion wall retaining an earth embankment beside a drain — Gabion wall stabilising a drain embankment.

How we work

How a job runs

Send a photo and location

A photo of the problem drain during or just after rain tells us more than a paragraph of description.

Site visit and levels check

We walk the drain line, check the fall and find where the water is actually being held up.

Method and quotation

We quote the fix that solves the cause, and say plainly if part of the problem is outside your boundary.

Build, test with water, hand over

We run water through the completed drain before handover so you can see it flowing.

Who we work for

Councils, developers, factories and residents' associations

Drainage problems rarely sit inside one boundary, so we are used to working with a mix of parties — a council maintenance contract, a housing developer's infrastructure package, or a group of neighbours who have had enough of flooding.

Where the fix needs a local authority or JPS approval, we will tell you that at the site visit rather than after the work has started.

Local authorities (MPS, MPKj and equivalents) via main contractors
JPS drainage and river maintenance packages
Housing developers — full scheme drainage
Factories and commercial compounds
Temples, schools and community buildings
Residents' associations and individual house owners

FAQ

Drainage Works — questions we get asked

My compound floods every heavy rain. Where do you start?

With a site visit during or right after rain if we can manage it. Usually the cause is one of three things: the drain has lost its fall, it is silted or blocked downstream, or it is simply undersized for the catchment. Each has a different and very differently priced fix.

Can you repair a drain without demolishing the whole thing?

Often yes. Cracked sections can be cut out and recast, and a drain that has only lost its fall can sometimes be regraded. We will tell you honestly when patching is throwing good money after bad.

Do I need council approval?

For work wholly inside your own land, usually not. For anything connecting into a public drain, crossing a road reserve, or affecting a watercourse, yes — and we will say so before you commit.

Do you handle OSD and detention pond works?

We do the civil works — excavation, structures, outlets and inlets — to the drainage consultant's design. The hydraulic design itself is a consultant's job, and we will tell you when you need one.

How soon can you attend an urgent collapse?

For a collapsed drain that is undermining a road or a house, WhatsApp us with a photo. We treat those as urgent and will normally get someone to site within a day or two.

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