Downpipe Installation in Fremantle & Perth's Western Suburbs
Downpipes are where most gutter problems actually start. Too few of them, or one that discharges straight against the wall, and you get overflow in every storm and damp where you least want it. We size them to the roof and connect them properly.
What Downpipe Work Involves
A downpipe has one job, which is to move the water the gutter collects away from the building fast enough to keep up with the rain. Nearly every downpipe problem we see on Perth homes comes down to one of two things. Either there are not enough of them, or the water leaves the bottom of the pipe and simply sits next to the footing.
- Roof catchment area calculated for each separate gutter run
- Downpipe number and size worked out from that area
- Positions set so runs drain evenly instead of all to one corner
- Outlets cut cleanly into the gutter and sealed
- Pipe fixed to the wall with proper brackets, not left to rattle
- Discharge connected to stormwater, soakwells or a rainwater tank
- Existing connections checked to confirm they are actually flowing
- Water run through the finished system and watched before we leave
How the Job Runs
Downpipe work is quick, but only when the sizing and the discharge point are sorted before anyone picks up a tool.
Assess
We work out the catchment feeding each run, count what is there now, and check where every existing downpipe discharges. Usually at least one is going somewhere useless.
Plan the layout
Positions are chosen for drainage first and appearance second, though we will always work with you on where a pipe lands on a visible elevation.
Install
Outlets cut and sealed, pipe run and bracketed back to the wall, elbows and offsets made up to clear eaves and any obstructions.
Connect & test
Discharge connected to stormwater, soakwell or tank, then water put through the system so you can see it working before we pack up.
What It Costs
Downpipes are usually priced per pipe, with any drainage connection quoted separately if it needs work. What affects it:
- How many downpipes are being added or replaced
- Single or double storey, since a two storey run is longer and harder to access
- Round or rectangular pipe, and the colour and finish selected
- Whether the discharge ties into existing stormwater or needs a new soakwell
- Any digging required to reach or extend an underground line
- Rainwater tank connections, including first flush and overflow arrangements
If we open up an existing stormwater connection and find it blocked or collapsed, we will tell you what it needs. Underground drainage becomes its own trade past a certain point, and we would rather point you to the right person than guess at it and charge you for the guess.
Why Downpipes Cause More Damage Than People Think
A blocked or badly placed downpipe does not just make a mess in a storm. It puts water into the parts of a building least able to cope with it.
Water against the footing
A downpipe discharging straight onto the ground beside the house dumps hundreds of litres against the footing in a single storm. In Perth sand that water goes straight down, and it takes fines with it.
Overflow at the gutter
If the downpipes cannot take the flow, the gutter fills and goes over the front edge. People blame the gutter and clean it out again, but the real fault is downstream of them.
Damp walls and staining
Water running down a wall from a leaking joint or a loose rattling pipe leaves a stain first and a damp problem later. It is a cheap fix early and an expensive one once it has been going for years.
Downpipe FAQs
It is driven by roof area, not by house size and not by what happened to be there before. A large roof section draining to a single downpipe is a very common Perth problem, and it is why so many gutters overflow despite being perfectly clean.
Yes. Cutting a new outlet and running an extra downpipe off an existing gutter is straightforward, and it is often the cheapest real fix for a run that overflows every winter.
Into stormwater, a soakwell or a tank. Anywhere except onto the ground next to the house. If yours currently ends in a garden bed hard against the wall, that is worth changing regardless of anything else.
Mostly appearance. Rectangular sits flatter against a wall and suits modern homes, round suits older and heritage styles. Capacity comes down to cross section, so we size whichever you choose to the roof area feeding it.
Usually a blockage at the outlet or partway down the pipe, or an underground line that has silted up. We can clear the pipe itself. If the blockage is underground, that needs a drainage contractor and we will tell you so.
Yes, including a first flush diverter so the initial dirty water off the roof does not end up in the tank, and an overflow that takes the excess somewhere sensible rather than back against the house.
They need clearing when the gutter above them is not being maintained. A clean gutter keeps its downpipes clear on its own. If yours block repeatedly, gutter guard is usually the cheaper long term answer.
If your existing pipes are in current colours, generally yes. If the house has older or sun faded pipes, a new one will read as new. On a visible elevation it is often worth doing the whole side at once.
Stop the Overflow at the Source
If your gutters overflow in every storm, the downpipes are usually the reason. We will size them properly and connect them where the water should actually go.