Metal Roof Leak Repairs
Fast, Expert Leak Detection & Permanent Fixes
Water coming through your Colorbond or metal roof? Don't panic—most metal roof leaks can be fixed quickly without replacing the whole roof. Our experienced team finds the source fast and makes permanent repairs. We've fixed thousands of metal roof leaks across Frankston and the Mornington Peninsula.
Got Water Coming Through Right Now?
Call immediately—we provide 24/7 emergency leak repairs
Common Metal Roof Leak Sources
Where we find problems—and how we fix them
Failed Screws
40% of leaksWorn washers, backed-out screws, or corrosion around screw points
Fix: Replace with Class 4 screws and EPDM washers
Flashing Failures
25% of leaksDeteriorated flashings around walls, penetrations, and roof edges
Fix: Replace or reseal flashings with Colorbond or silicone
Rust & Corrosion
15% of leaksHoles from rust-through, especially in valleys and overlaps
Fix: Treat rust, patch small holes, or replace affected sections
Overlap Issues
10% of leaksCapillary action drawing water under sheet laps
Fix: Reseal overlaps with appropriate sealants
Valley Leaks
7% of leaksDebris dams, corroded valley irons, or insufficient overlap
Fix: Clear debris, repair or replace valley flashings
Expansion Gaps
3% of leaksThermal movement opening gaps at ridges and edges
Fix: Seal with flexible silicone sealants
How We Find & Fix Metal Roof Leaks
Systematic approach for reliable results
Inspect
Systematic inspection of roof from above and below (if accessible). Check all screws, flashings, penetrations, valleys, and overlaps.
Locate
Identify exact leak source(s). Water can travel along roof structure, so the drip point isn't always where the leak is. We trace it back.
Repair
Fix the problem properly—not just slap silicone on it. Screw replacement, flashing repair, rust treatment, or section replacement as needed.
Verify
Test the repair if conditions allow. Provide warranty on our work. Give you honest assessment of remaining roof condition.
The #1 Cause of Metal Roof Leaks: Failed Screws
Approximately 40% of all metal roof leaks we repair are caused by failed screws. The rubber washer under the screw head is the seal—and it doesn't last forever.
⚠️ Signs Your Screws Are Failing:
- •Rust rings or staining around screw heads
- •Screws sitting proud (backed out) from the roof
- •Cracked or perished rubber washers visible
- •Missing screws (wind uplift can pull them out)
- •Drips appearing after rain near screw lines
✅ Our Solution:
We replace failed screws with premium Class 4 stainless-cap screws with EPDM (ethylene propylene) rubber washers—rated for 25+ years of UV and weather exposure.
For older roofs, we often recommend full screw replacement as a preventive measure—cheaper than dealing with multiple leak calls over the coming years.
Screw Replacement
Quality Workmanship, Guaranteed
Flashing Repairs & Replacement
Second most common metal roof leak cause
Wall Flashings
Where roof meets walls or chimneys. Common failure point as sealants age and shrink. We replace with new Colorbond flashings properly sealed.
Ridge Flashings
Ridges cop the worst UV and weather. Ridge caps can lift or sealants fail. We rebed and seal or replace ridge capping entirely.
Valley Flashings
Valleys concentrate water flow. Debris dams and rust are common. We clear, treat, and repair or replace with Colorbond valley irons.
Metal Roof Leak Repair FAQs
Common questions about leak detection and repair
Why is my metal roof leaking?
Metal roof leaks have several common causes: worn rubber washers on screws (the #1 cause), corroded or rusted through panels, failed flashings around penetrations and edges, thermal expansion opening gaps, capillary action drawing water under overlaps, or debris dams holding water in valleys. Our inspection identifies the specific cause—or causes, as there's often more than one.
How do you find leaks in metal roofs?
We use a systematic approach. First, visual inspection of screw points (looking for rust rings), flashings, overlaps, valleys, and penetrations. We check the underside if accessible for water staining patterns. For elusive leaks, we can hose test suspect areas. Our experience means we know where to look—90% of metal roof leaks come from just a few common failure points.
Can you repair leaks without replacing the whole roof?
In most cases, yes. Metal roof leaks are usually localized problems—a section with failed screws, a deteriorated flashing, or a rust hole. We fix the specific issue rather than pushing replacement. That said, if your roof has widespread rust or is over 40 years old with multiple issues, replacement may be more cost-effective. We'll give you honest advice.
How much do metal roof leak repairs cost?
Simple repairs like screw replacement on a small section start from around $250-400. Flashing repairs typically range from $300-600. More complex issues involving multiple leak points or section replacement can be $800-2,000+. We provide fixed quotes after inspection—no surprises. Emergency call-out fees may apply for after-hours service.
Do you offer emergency leak repairs for metal roofs?
Yes, we provide 24/7 emergency leak repair service across Frankston, Mornington Peninsula, and surrounding areas. If you have water coming through during a storm, call us immediately. We'll either fix the leak or make it watertight temporarily until permanent repairs can be done in dry conditions. Don't wait—water damage compounds quickly.
Why do metal roof screws fail and cause leaks?
The rubber washer under the screw head compresses over time, cracks from UV exposure, and hardens—eventually failing to seal. Screws can also back out from thermal movement (metal expands and contracts constantly). Original installations often use lower-grade screws that corrode. We replace with Class 4 stainless-cap screws with superior EPDM washers.
How often should metal roof screws be replaced?
Quality metal roofs need screw inspection every 10-15 years, with replacement as needed. Coastal properties may need attention sooner due to salt corrosion. Rather than waiting for leaks, proactive replacement during inspection can prevent water damage. We can assess your screws during a free roof inspection.
Can rust holes in metal roofing be repaired?
Small rust holes (under 50mm) can often be patched with specialized sealants and patches. Larger holes or widespread rust usually require sheet replacement. Importantly, the rust must be neutralized first—patching over active rust is a waste of money. We'll assess whether patching or replacement is the better option for your situation.
Related Services
Explore our other professional roofing services
Roof Restoration
Complete roof restoration including cleaning, repairs, and coating
Learn More →Roof Repairs
Fast and reliable roof repairs for all roof types
Learn More →Roof Painting
Professional roof painting with premium coatings
Learn More →Roof Cleaning
High-pressure roof cleaning to remove moss and debris
Learn More →Got a Leaking Metal Roof?
Don't let it cause more damage. Call now for same-day service or get a free quote for leak detection and repair.
✓ Same-day service ✓ 24/7 emergencies ✓ Find & fix same visit ✓ All metal roof types