NEW DRAIN INSTALLATION — MK

New Drain Installation — Designed Right, Installed Clean.

Adding an extension? Need a new drainage connection? Drainage MK designs and installs new drain runs across MK — Building Regs compliant, water company sign-off handled, as-built drawings included. Make sure everything is working.

Small CALL-OUT Fee

Fair pricing

SAME-DAY QUOTES

24/7 AVAILABILITY

Drainage That Just Works — Year After Year

A new drain is supposed to last 30+ years without thinking about it. To get there, it needs to be properly designed (correct fall, correct pipe size, correct connections), properly installed (correct bedding, correct backfill, correct testing), and properly signed off (Building Regs, water company, as-built drawings).

Cut corners on any of those and you’ll have problems within a few years. We don’t cut corners. Good price quote, professional installation, full documentation.

4.9/5 from 488 verified MK customers

Where We Install New Drains

Home Extensions

Kitchen, bathroom, utility room extensions.

New Bathroom / Kitchen

Adding a bathroom or kitchen where none existed.

Outbuilding Drainage

Annexes, garden offices, garages with WCs.

New Mains Connection

Connecting a property to mains drainage.

What MK Customers Say About Our Installations

Theodore B. — MK

"Kitchen extension drainage — they designed it, did the water co paperwork, installed cleanly. Building inspector signed off first time."

Cordelia M. — MK

"Garden office with WC. They worked out the pump-and-drain system, installed a 30m run cleanly. Working perfectly."

Eric H. — MK

"Loft conversion bathroom — they specified the right pipework, installed without disrupting the rest of the house. Brilliant work."

Patricia T. — MK

"Annexe build — full new drainage from scratch including a pumping station. Project-managed properly, on time, on budget."

Work Process

How We Install New Drains

Design & Survey

Clear Quote

Install & Sign-Off

Get The Drainage Right Before The Builders Start

Drainage problems mid-build cost weeks. Get the design and quote sorted before groundworks start. Small call-out fee, written good price quote.

Why MK Trusts Us With New Drains

New Drain Installation FAQs

How much does a new drain installation cost in MK?

Every drainage connection is different. We check the site first, assess the route and provide a quote based on the work required.

Do I need Building Regs for a new drain?

Usually yes — any new drain must comply with Approved Document H. We handle the compliance and inspector sign-off.

How long does a typical installation take?

Single drain runs 1–2 days, extension drainage 3–5 days. Longer for complex outbuilding installs.

Do you connect to existing drainage?

Yes — provided existing drainage has capacity. We CCTV check existing runs first.

Can you handle water company applications?

Yes — including new connections, adoption submissions and section agreements.

Will you provide as-built drawings?

Yes — for all installations. Useful for property sale and future reference.

Do you cover all of MK?

Yes — every MK postcode and surrounding RG areas.