Expert Leak Repair Services in Melbourne

Water leaks don’t fix themselves. Whether it’s a slow drip behind your tiles or a ceiling stain that’s getting worse, every day you wait gives water more time to rot timber, damage plaster, create mould and turn a $500 repair into a $15,000 structural rebuild. At Complete Construction Service, we are providing leak repair services in Melbourne professionaly. Over the last 15 years we’ve been tracking down Melbourne’s trickiest leaks and repairing them properly not just covering up the symptoms.

Our team combines diagnostic expertise with hands-on waterproofing knowledge. We don’t just patch the visible damage. We find where the water’s coming from, fix the root cause, and make sure it stays fixed. From Cranbourne to Doncaster, Melbourne property owners trust us because we protect their biggest investment.

Whether you’re dealing with a leaking shower, water-damaged balcony ceiling, or roof stains, we have the knowledge, tools, and experience to solve it permanently. If you need a leak assessment, just give us a call on 0414 060 534 or email office@completeconstructionservice.com.au

Our Expertise

Leak Repair Services We Provide

Balcony Leak Repair

Balcony leaks destroy ceilings below and rot structural timber. We fix failed membranes, blocked drainage, and damaged substrates. Proper waterproofing, proper falls, proper peace of mind — so you can enjoy your outdoor space again.

Bathroom Leak Repair

Leaking showers, baths, and wet areas cause serious damage fast. We locate failing grout, cracked tiles, and membrane breakdowns, then repair or replace waterproofing to Australian Standards. Your bathroom stays dry, your home stays protected.

Roof Leak Repair

Roof leaks start small but spread fast through insulation and ceilings. We track down damaged flashing, cracked tiles, and failed valleys, then repair them to stop water at the source. Melbourne weather is tough so your roof should be tougher.

Where we work

Leak Repair Services Across Melbourne

We’re proud to serve property owners throughout Melbourne’s suburbs. From the southeast to the west and everywhere in between. Whether you’re in Cranbourne dealing with a bathroom leak, Pakenham facing balcony damage, Point Cook with a roof issue, Dandenong, Werribee, or Doncaster, we bring the same expertise and quality to every job.

We understand Melbourne’s building styles, weather patterns, and the unique challenges local properties face. If you’ve got a leak, we’ll be there to fix it.

Don’t Let a Small Leak Become a Big Problem

Every day you wait gives water more time to damage your property. Get a professional assessment, a clear quote, and a permanent fix from Melbourne’s leak repair specialists.

How We Work

Our Leak Repair Process

01.

Assessment & Consultation

We don’t guess. We use moisture meters, thermal imaging, and 15+ years of experience, we find the exact entry point — not just where it’s showing up.  This precision saves you thousands in unnecessary repairs.

24-48 hours from initial contact

02.

Transparent Quote & Assessment

You get a clear explanation of what’s wrong, what needs fixing, and and a clear fixed-price quote. No hidden costs, no surprises, no jargon just honest advice and transparent pricing so you can make an informed decision.

1-2 business days

03.

Expert Repair Using Quality Materials

We fix the root cause using premium waterproofing membranes according to Australian Standards. Whether it’s membrane replacement, substrate repair, or drainage correction, we do it right the first time.

Varies by project scope

04.

Testing, Documentation & Warranty

Before we leave, we test the repair to confirm it’s 100% watertight. You get documentation of work completed, maintenance advice, and the confidence that the leak is gone for good.

Final day of project

Our Work

Completed Melbourne Projects Gallery

Why Choose Us

Why Melbourne Trusts Complete Construction Service

15+ Years Finding Leaks Others Miss

We have spent over a decade and a half solving Melbourne’s most stubborn leak problems. We’ve seen every type of failure, every building style, every weather challenge this city can throw at a structure. That experience means we find problems faster and fix them smarter.

No Shortcuts, No Bandaids

We don’t slap silicone over the problem and hope for the best. Every repair meets Australian waterproofing standards. We use premium membranes, proper surface prep, and techniques that last  because your home deserves better than a temporary fix.

Local, Reliable, Accountable

We’re based in Melbourne and serve all of Melbourne suburbs from Cranbourne and Pakenham to Point Cook, Dandenong, Werribee, and Doncaster. When you call, you’re talking to locals who stand behind their work, not a call center three states away.

Transparent Pricing, Clear Communication

You’ll know what the job costs before we start. We explain what’s wrong in plain English, answer your questions honestly, and keep you updated throughout the repair. No surprise charges, no runaround.

Real Cause

What Causes Leaks in Melbourne Homes?

Understanding why leaks happen helps you spot problems early and prevent expensive damage. Here are the most common culprits we see across Melbourne properties.

Failed Waterproofing Membranes

Membranes crack, degrade, or weren’t installed correctly in the first place. When they fail, water goes straight through to the structure below.

Cracked or Missing Grout

Grout isn’t waterproof on its own. When it cracks or wears away, water seeps behind tiles and into walls, ceilings, and floors.

Blocked or Damaged Drainage

When water can’t drain properly from balconies, showers, or roofs, it pools and finds any weakness to exploit then it’s inside your home.

Deteriorated Flashing & Seals

Flashing around chimneys, vents, and roof valleys breaks down over time. Melbourne’s sun, wind, and rain accelerate the damage, creating entry points for water.

Structural Movement & Settlement

Buildings shift slightly over the years. That movement can crack waterproofing, open gaps in joints, and compromise seals that were once watertight.

Poor Original Workmanship

Sometimes the waterproofing was never done right. Incorrect falls, missed prep work, or cheap materials mean leaks were inevitable, you’re just seeing the consequences now.

let's work together

Get Your Free Leak Inspection Today

Concerned about water damage or moisture issues in your Melbourne property? Our expert leak detection team is ready to assess your situation, identify the source, and provide an accurate, obligation-free quote within 24 hours.

    COMMON QUESTIONS

    Frequently Asked Questions

    How much does leak repair cost in Melbourne?

    It depends on the location, size, and cause of the leak. A simple grout repair might cost a few hundred dollars, while a full balcony membrane replacement runs higher. We provide free assessments and clear quotes before starting any work, so you'll know exactly what to expect.

    How long does a leak repair take?

    Most repairs take anywhere from a few hours to a couple of days, depending on the extent of damage and drying times required. We'll give you an accurate timeline during the assessment so you can plan accordingly.

    Do you offer warranties on leak repairs?

    Yes. We stand behind our workmanship and use quality materials that are built to last. Warranty details depend on the specific repair, and we'll discuss coverage when we quote your job.

    Can you repair leaks without removing all my tiles?

    Sometimes, yes. If the damage is localized and the membrane beneath is still sound. But if the waterproofing has failed across a larger area, removing and replacing affected tiles is the only way to guarantee a permanent fix. We'll always recommend the option that actually solves the problem, not just the cheapest band-aid.

    How do I know if I have a leak?

    Common signs include water stains on ceilings or walls, musty smells, peeling paint, soft or spongy floors, and visible mould growth. If you're seeing any of these, it's worth getting an inspection before the damage spreads.

    Will my leak get worse if I wait?

    Yes. Water damage compounds over time. What starts as a small stain can rot structural timber, destroy plaster, create mould health hazards, and lead to repairs costing thousands more than if you'd acted early. The sooner you fix it, the less damage you'll pay for.

    Do you work on commercial properties or just homes?

    We handle both residential and commercial leak repairs across Melbourne. Whether it's a home bathroom or a multi-level apartment building, we've got the experience and equipment to get the job done right.

    Don’t hasitate! Get in touch with us today.