When patching stops being worth it
Most people do not set out to replace a roof. They set out to fix a leak, find out it is the fourth leak in two years, and start doing the maths.
The line is usually clear once someone has been in the roof space. A tile roof where the bedding has failed but the tiles are solid is a restoration job. A tile roof where the tiles themselves are flaking, the battens have gone soft under old leaks, and the sarking (if it was ever there) has disintegrated is a replacement job. A metal roof with rust perforating the sheets rather than sitting on the surface is a replacement job. We will tell you which one you have before we quote.
Call (02) 4705 5100 for a free inspection, or read the comparison on the roof restoration page first.
Three kinds of re-roof around the Nepean
The housing stock across the Penrith LGA is varied enough that "a re-roof" means three quite different jobs.
Post-war and 1970s brick-and-tile. South Penrith, Cambridge Park, Colyton, Oxley Park, Werrington, parts of St Marys. Hip-and-valley concrete tile, often original, sometimes with no sarking at all. Replacement here is as much about getting sarking and ventilation in as it is about the new surface.
Rural-residential acreage. Mulgoa, Orchard Hills, Llandilo, Castlereagh, Londonderry. Bigger roof areas, often a dwelling and a shed in the same quote, long gutter runs, and bushfire-prone land that makes ember-resistant detailing around the eaves and valleys worth getting right.
Estate housing. Jordan Springs, Caddens, Claremont Meadows, Glenmore Park. Newer metal and lightweight tile where replacement is usually storm driven rather than age driven, and where matching the existing profile and colour across a streetscape matters.
Tile or metal
Neither is the right answer everywhere. What actually decides it:
- Roof pitch. Low pitches rule tiles out. Metal sheeting runs down to much lower pitches with the right profile.
- Weight. Metal is a fraction of the weight of tile. On an older frame that has been through decades of movement, that is a real advantage.
- Heat. Colour drives this more than material. Penrith is the hottest part of the basin and a lighter roof is measurably cooler overhead — the reasoning behind the council's Cooling the City work on reflective roofs.
- Hail. Both take damage in a serious hailstorm. Tiles crack and need individual replacement; steel dents and may only be cosmetic. Insurers treat them differently.
- Noise and condensation. Metal needs sarking and a ventilated cavity done properly, or you get rain noise and winter condensation dripping onto the insulation.
- Matching the street. In the tile belt, a tile re-roof keeps the house looking like it belongs. In the newer estates, metal does.
More detail on sheet profiles, colours and fixings is on the metal and Colorbond roofing page.
What a full replacement includes
A proper re-roof is not just a new surface. The scope we quote normally covers:
- Scaffold and edge protection, and protection of gardens, paths and the driveway
- Strip and remove the old roof, with all waste taken away
- Inspect battens, rafters and any timber damaged by previous leaks, and report before replacing anything structural
- New sarking across the whole roof plane
- Battens adjusted or replaced to suit the new material and profile
- New roof material laid, fixed and flashed, including valleys, ridges, barges and penetrations
- Reinstate or replace gutters, downpipes and roof ventilation as agreed
- Clean-up, magnet sweep for fixings, and a final walkthrough with you
Gutters, ventilation and insulation while the roof is off
Replacing the roof is the only time these are cheap to do, because the access is already paid for. Worth considering in the same job:
- New gutters and downpipes, since the old ones are usually the same age as the roof — see gutter repair and replacement
- Leaf guard, which matters on blocks under established gums and on bushfire-prone land out at Llandilo, Londonderry and Mulgoa
- Roof ventilation to let the heat out of a roof space that bakes all summer
- Topping up or replacing ceiling insulation that has been flattened or wet
What drives the cost
Roof area and pitch first, then material and profile, then complexity — a simple gable costs less per square metre than a roof full of hips, valleys, dormers and penetrations. After that: access (can a truck get in, does the scaffold have to go over a pool), how much timber turns out to need replacing once the old roof is off, and whether gutters and ventilation are in scope.
We quote in writing with the items separated so you can see what is structural, what is optional, and what can be dropped. Anything unknown until the roof is stripped — soft battens being the usual one — is flagged up front rather than appearing as a surprise.
Get a replacement quote
Free inspection, written quote, no obligation, workmanship warranty on completion. Work is carried out by established, licensed and insured roofing contractors working to NSW Fair Trading requirements.
Call (02) 4705 5100 or tell us about the roof. We cover the whole Penrith area, from Emu Plains across to St Clair and out to Mulgoa.