Plumbing Services in Sunbury & Surrounding Suburbs

Looking for a plumber Sunbury locals actually recommend? You’ve found him.

MW Donnelly Plumbing is owner-operated by Mark Donnelly — a licensed plumber and gas fitter with 20+ years of hands-on experience. No subcontractors. No sales reps. Just Mark and his team, showing up when promised, quoting upfront, and explaining the work as they go.

We cover Sunbury and the wider northwest — Craigieburn, Gisborne, Bacchus Marsh, Keilor and beyond. Burst pipe at 2am? We answer. Hot water gone cold? Same day, most days.

GET IN TOUCH TODAY

What Locals Are Saying About Our Plumbing Services

Real reviews. Real customers. Here’s what people tell Google after we leave.

General Plumbing Services

At MW Donnelly Plumbing, we offer a full range of residential and emergency plumbing services throughout Sunbury and neighbouring suburbs including Craigieburn, Bacchus Marsh, Gisborne, Riddells Creek, Diggers Rest, and Keilor Downs. Whether it’s a leaking tap or a full system installation, we provide expert service with clear communication and long-term results.

Emergency Plumbing Sunbury

Plumbing emergencies don’t keep business hours. Neither do we. When you need an emergency plumber Sunbury can rely on, we’re available 24/7 for:

Servicing Sunbury, Bacchus Marsh, Craigieburn, St Albans and beyond. Same-day where we can, faster when it’s a leak you can hear from the next room. Call first — even after hours — and we’ll triage straight away.

Don’t wait it out. Most “small” leaks are anything but small.

Hot Water Service Sunbury

When the shower turns cold on a Sunbury winter morning, the question isn’t how it broke — it’s whether you’re fixing or replacing. We service every common system across Melbourne’s northwest:

Most call-outs end one of two ways: a relief-valve swap or thermostat reset that has you back in business that afternoon, or an honest conversation about whether the unit’s worth another repair bill.

Hot Water Replacement Sunbury

Most hot water units last 8–12 years. If yours is creeping past that, leaking from the base, or making the rumbling-kettle sound that means sediment has taken over the tank — plan the replacement before it forces the decision at 6am on a Tuesday.

Drainage & Blockage Solutions

Blocked drains rarely fix themselves. They escalate — often into bills with extra zeros.

We use drain camera inspections to find the cause (tree roots through a clay joint, a collapsed PVC section, kids’ toys learning to swim), then high-pressure jet cleaning to clear it. Stormwater and sewer maintenance covered too.

Slow sink? Gurgling pipes? Foul smell from a floor waste, or water pooling near the stormwater outlet? Call before it’s a flood.

Bathroom Plumbing Sunbury

A single tap swap or a full bathroom plumbing Sunbury renovation — we handle the wet side of the job, and we do it to the Victorian Plumbing Code.

Renovating? Loop us in before tile day. We’ll save you the second trip back through finished work.

Roof Plumbing & Leak Repairs

Roof issues need fast attention to prevent structural damage. A small roof leak today is a ceiling repair next month — and a mould remediation the month after. MW Donnelly Plumbing will help with:

Emergency roof plumbing available across Sunbury, Gisborne and Delahey when the rain forecast looks personal. We’ll find the leak, fix it once, and stand by the work.

Sunbury Gas Fitting & Appliance Installations

Gas isn’t a DIY job. It’s a licensed-only job under Victorian law — and we hold the ticket.

We install gas cooktops, ovens, space heaters and continuous flow hot water units. Bayonet fittings for the BBQ. New gas lines run for a kitchen extension. Leak detection and repair. Every job comes with a Certificate of Compliance — the document your insurer and the next buyer of the house will both want to see.

Smell gas? Hearing a hiss near a fitting? Don’t investigate it yourself. Shut off the supply at the meter and call us.

Water Pressure Solutions

Weak shower? Slow-filling washing machine? Hose dribbling when it should spray?

Low water pressure usually traces back to one of four culprits:

A blocked aerator at the tap (the cheap fix)
A faulty pressure-reducing valve
Partial pipe blockage from scale or corrosion
An issue at the mains side of the meter

We diagnose first, then fix — not the other way around.

Septic System Services

Off the main sewer line — Gisborne, Romsey, Woodend, the semi-rural blocks east of Sunbury — septic systems become your problem to manage. We handle:

How It Works

Reach out via phone or our online form

We provide a quote — upfront and clear

We attend on-time and complete the work

Follow-up available if you need support

Why Locals Trust MW Donnelly

What you actually get when you book us:

20+ years of plumbing experience in Melbourne's northwest
Owner-operator — Mark answers the phone, Mark turns up
24/7 emergency callouts across Sunbury and surrounds
Licensed plumber and gas fitter — credentials at the top of this page
Tidy on-site and respectful of your home

Trusted by homeowners, elderly residents, rural households, real estate agencies, and renovation contractors.

Gallery

Frequently Asked Questions

What suburbs do you service?

We cover Sunbury, Craigieburn, Bacchus Marsh, Gisborne, Riddells Creek, Diggers Rest, Keilor Downs, Taylors Lakes, Delahey, Romsey, Woodend and St Albans — across Melbourne’s northwest. Not sure if you’re in range? Call and ask.

Are you licensed and insured?

Yes — fully licensed for plumbing and gas fitting, and fully insured. Both licence numbers are listed at the top of this page so you can verify before we start work.

How quickly can you come for emergencies?

For genuine emergencies — burst pipes, gas leaks, no hot water — we aim for same-day across Sunbury and core suburbs. Call first, even after hours, and we’ll triage immediately.

Do you provide quotes before starting work?

Yes. Every job gets a clear upfront quote before any work starts. Fixed pricing on most jobs. Emergency and after-hours rates are explained on the call — never after.