Hornsby roofers for leaking tiles, choked valleys and tired roofs

A tile on the lawn after a windy night, or a brown ring creeping out across the ceiling cornice. That is usually what starts the call. Phone (02) 9000 1127 and we will come and look at it properly, for free.

Roofs between Beecroft and Brooklyn live a harder life than most Sydney roofs. Around two-thirds of Hornsby Shire is bushland, by the Council's own bushland reporting, and the suburbs sit inside it rather than beside it: Ku-ring-gai Chase National Park holds the eastern and northern edge, the Berowra Valley runs down the middle to Berowra Creek, and Galston Gorge cuts across to the acreage country at Arcadia. It is beautiful, and it drops a great deal of organic matter on your roof every week of the year.

The faults we are called out for most

Across the Upper North Shore the same handful of problems account for the bulk of the work:

• Valleys packed with leaf litter, so water backs up over the valley tray edge and runs under the tiles.
• Gutters holding silt and water because the fall was lost or the leaf mat never dried out, then rusting from the inside.
• Crumbling ridge pointing on tile roofs from the 60s and 70s, where the old mortar has gone sandy and water tracks straight under the caps.
• Flashings that have given up at chimneys, parapets and skylights, especially where a later addition met an older roof.
• Cracked and slipped tiles from branch strike and from decades of foot traffic by antenna and air-conditioning installers.
• Plastic or absent gutter guard on bushfire-prone blocks, where a non-combustible mesh is what the standard actually asks for.

Almost none of that is dramatic. It is slow, it is cheap to fix early, and it is expensive once the ceiling is involved.

What constant leaf load does to a roof

A gum leaf is not the problem. Ten thousand of them, wet, compressed and sitting against a steel gutter all winter, are the problem.

The mat holds moisture against the back of the gutter and the fascia, so rust starts where you cannot see it. In a tile valley it lifts the sheets of water sideways instead of letting them run, and once water crosses the edge of the valley tray it is inside the roof space. Under a metal roof it blocks the gutter outlet so the gutter overflows backwards under the sheet ends.

The repair is rarely exotic: clear it, flush it, check the valley tray for pinholes and corrosion, re-lay the tiles against the valley with the correct gap, and then make a decision about leaf guard based on what is actually growing above the house. A canopy of stringybarks needs a different answer from a couple of ornamental trees in a Waitara courtyard.

Roofs on bushfire-prone land

Berowra, Mount Kuring-gai, Cowan, Brooklyn, Hornsby Heights, Westleigh and the acreage blocks out at Arcadia and Fiddletown include a great deal of land mapped as bushfire prone. Hornsby Shire's maps are certified by the NSW Rural Fire Service and they drive how new roof work has to be built under AS 3959.

The roof-line details that matter are unglamorous and worth getting right: full sarking under tiles, roof-to-wall junctions sealed, valley and gutter guards in non-combustible material, and fine-aperture ember mesh rather than a plastic clip-in product that will not do the job. We raise this at the inspection and put it in the quote in plain terms. See gutter repair and leaf guard for how that is specified.

Tile, terracotta or Colorbond

What is on your roof depends mostly on when your street was built.

The Federation and inter-war houses through Beecroft, Cheltenham, Wahroonga and Normanhurst are often under Marseille-pattern terracotta, which lasts remarkably well but is unforgiving of foot traffic and runs out of matching stock. The post-war and 1960s-70s brick homes across Asquith, Mount Colah, Berowra Heights and Hornsby Heights are mostly concrete tile, which is where most of our roof restoration work happens. Later additions, carports and the acreage houses and sheds out at Arcadia are usually metal, and that is where Colorbond re-roofing comes in.

On a steep, treed block, the practical argument for metal is that leaves slide off it. The argument for staying with tile is matching the street, which matters more than usual inside the Beecroft and Cheltenham heritage conservation area.

How a job actually runs

1. You call (02) 9000 1127 or send the form. Tell us the suburb, the roof type and what you have noticed.
2. Free inspection. Someone gets up there, photographs the fault and checks the things that commonly go with it.
3. Written quote. Itemised, with the reasoning. No pressure, no obligation, and no repeat calls chasing you.
4. The work. Licensed and insured roofing contractors, working to NSW Fair Trading requirements, with the site left clean and the gutters cleared on completion.
5. Warranty. Completed work carries a written workmanship warranty.

What it costs

We will not quote a roof over the phone, because the number would be fiction. What moves the price is roof size, pitch, the material, access, and how far the damage has already travelled. A steep Hornsby Heights roof with a two-storey drop on three sides and a tree canopy in the way takes longer to work safely than a single-storey Waitara roof you can reach off a ladder. Bushfire-prone detailing adds cost too, and it belongs in the quote rather than in a conversation later.

The inspection is free and the quote is in writing, so you can compare it against anything else you have.

Start with a look at the roof

If you have a stain, a drip, a tile down or a gutter that has not been clear in years, the cheapest moment to deal with it was last season and the second-cheapest is now.

Call (02) 9000 1127 or request a free quote. We work right across Hornsby and the Upper North Shore, from Beecroft and Cheltenham up through Hornsby, Berowra and Cowan to Brooklyn on the Hawkesbury.