0478 831 069 
michael@stormsideroofing.com.au
Rainheads & Box Gutters in Melbourne
Box gutters rebuilt with the right fall, sump and overflow provision. Get these wrong and the water goes inside the building rather than outside it.
Rated 5/5 from 30+ Google reviews
An Overflowing Box Gutter Has Nowhere To Go But Inside
An eaves gutter that overflows spills down the outside of the building. Annoying, but it lands in the garden. A box gutter is different, because it sits between roof planes or behind a parapet, with the building on both sides.
When a box gutter backs up, the water level rises above the flashings and goes straight into the ceiling. This is the single most damaging roof drainage failure we get called to, and it happens most often on terraces, shops and older commercial buildings around Melbourne.
The usual causes are a blocked outlet, not enough fall, or no overflow provision at all. That last one is a design fault, not a maintenance issue, and plenty of older buildings simply never had it.
- Water marks or ceiling damage after prolonged heavy rain
- A box gutter with no visible overflow or rainhead
- Standing water sitting in the gutter after the rain stops
- Rust and pinholes along the base of the gutter
- Leaf litter packed around the outlet
Fall, Sump And A Way Out When It Blocks
A compliant box gutter needs three things working together. Enough fall along its length to keep water moving, a properly formed sump at the outlet, and overflow provision sized so that if the outlet blocks completely the water still escapes outside the building.
That overflow is usually a rainhead, which is an external box on the end of the gutter with a weir cut into the front. If the downpipe blocks, the rainhead spills over the front onto the ground rather than backing up under the roof.
We rebuild box gutters to those requirements, in one length where we can to reduce the number of joints, and detail the upstands so the flashings sit well above the design water level.
- Fall set along the full length so water keeps moving
- Sump formed properly at the outlet
- Rainhead with a sized weir so a blockage spills outside
- Upstands and flashings kept above the design water level
- Formed in the longest lengths practical to reduce joints
Melbourne Property Owners On Our Roof Plumbing
- Amanda Cunningham Home Owner
Absolutely brilliant to deal with, prompt, efficient, knowledgeable, and his workmanship is amazing. We would definitely recommend Michael and we will be using his services again on some future projects.
Google - Michael B Home Owner
We recently bought our house, which was only five years old, and unfortunately discovered extensive roof issues that had not been built to Australian standards. After speaking with several roofers, Michael came across as the most professional and helpful. He was prompt, meticulous, and I couldn't recommend him more highly.
Google - Aleksandar Andonov Home Owner
The team was professional and detail-oriented from start to finish. They replaced my old tile roof with a new tin roof, restored damaged areas, and installed new fascia and gutters. Their work quality is outstanding, and they completed everything on time and within budget.
Google
Talk To A Licensed Roof Plumber
Send us a few details and we will book an inspection, get up on the roof, and put a written quote in front of you. You will know the scope, the materials and the price before anything starts.
No hidden fees and no pressure. If a repair will do the job, we will say so.
- Phone 0478 831 069
- Location Cranbourne
Box Gutter Questions
More than eaves guttering, because it is fabricated to suit the building rather than bought off the shelf, and access is usually harder. The cost depends on the length, the number of outlets and whether rainheads need to be added. We inspect it and quote in writing with the scope broken down.
A rainhead is an external box at the end of a box gutter with a weir in the front face. It is the overflow path, so if the downpipe blocks, water spills outside the building rather than into the ceiling. On most box gutter installations it is a requirement, and plenty of older buildings do not have one.
Because it is a capacity problem rather than a hole. In ordinary rain the outlet copes. In a downpour the water arrives faster than it can leave, the level rises above the flashings, and it goes inside. That points to fall, outlet size or overflow provision.
Localised repairs are possible if the gutter is fundamentally sound and correctly formed. But if the problem is inadequate fall or no overflow provision, that is built in and repairing will not fix it. We will tell you which one you have.
Yes, regularly. Shops, warehouses, strata buildings and offices all run box gutters, and we can stage the work around trading hours where that matters.
We cover Melbourne's South East, from Cranbourne and Pakenham through to Frankston and the Mornington Peninsula. Check our areas we serve page, or call 0478 831 069 and we will let you know either way.