Tile Roof Restoration Across the Hills District

The brick-and-tile belt is due

Winston Hills was built out from the 1960s. Big stretches of Baulkham Hills, Castle Hill and Kellyville followed through the 1970s and 1980s. Cherrybrook and Glenhaven filled in over former orchard land in the 1980s and 1990s. Almost all of it went up as brick veneer or full brick with a concrete tile roof.

Those tiles are often still fine. What has expired is everything holding them together and protecting them: the mortar bedding under the ridge caps, the pointing over it, the surface glaze on the tile itself, and the sarking underneath.

That is the exact condition a restoration is designed for — and it is a fraction of the cost and disruption of a full replacement.

What a restoration includes

A restoration done properly is a sequence, and skipping the middle of it is how roofs get a fresh coat of paint over a live leak.

1. Inspection and tile assessment

Walk the roof, check a representative sample of tiles for cracking and surface breakdown, look at the ridge lines, the valleys, the flashings and the gutters. Then into the roof space to check the sarking, the battens and any water tracking. If the tiles have delaminated or the battens are soft, a restoration is the wrong product and we will say so.

2. High-pressure clean

Moss, lichen, accumulated gum leaf, bark and the oxidised remains of the old coating all come off. Gutters, valleys and downpipes are cleared as part of this, because everything that leaves the roof has to go somewhere. On a heavily treed block this stage alone often reveals two or three defects that were hidden under growth.

3. Repairs and tile replacement

Cracked and broken tiles out, matched tiles in. Rusted valley iron replaced. Flashings re-detailed where they have failed. This is the part that actually stops leaks.

4. Rebedding the ridge and hip caps

Old, drummy mortar bedding is removed and the caps are rebedded in fresh mortar. On a Hills roof with long hip runs on a two-storey home, this is a substantial part of the labour.

5. Repointing with a flexible compound

Flexible pointing over the fresh bedding, which moves with the roof instead of cracking off it. This is the single most important waterproofing element at the top of a tile roof.

6. Sealing and coating

A primer or sealer into the porous tile surface, then coats of a roof membrane rolled or sprayed to even coverage. The coating protects the tile and restores the colour. It is the last step, not the whole job.

Why tree cover changes the specification here

Suburbs sitting against Cumberland State Forest, Bidjigal Reserve and the Berowra Valley bushland carry a permanent organic load. West Pennant Hills, Cherrybrook, Glenhaven, Galston and the treed parts of Castle Hill are the clearest examples.

Practically, that means:

• Moss and lichen return faster on shaded planes, so surface preparation has to be thorough rather than quick
• Valleys fill again, so clearing them during the restoration is maintenance, not a fix — leaf guard is usually the conversation that follows
• Debris trapped against the ridge line keeps the pointing damp, which is why repointing failure is so common on these streets
• Overhanging limbs scuff a fresh coating, and we will point out branches worth trimming before the coating goes on

When restoration is the wrong answer

We would rather tell you up front than take the job:

• Delaminating terracotta. Tiles shedding their fired surface cannot be coated back to health.
• Soft battens or structural timbers. Water has already won. That is a replacement.
• Too many broken tiles in a discontinued profile. If the tiles cannot be matched, you are building a patchwork.
• Metal roofs. Steel roofs are repaired, recoated or re-sheeted, not restored in this sense. See the metal and Colorbond page.
• An active structural leak with ceiling damage. Fix the cause first with a roof repair; restore afterwards if it still makes sense.

What drives the price

• Roof area and the number of ridge and hip metres, because rebedding is labour-heavy
• Pitch and access. A two-storey Castle Hill roof with a steep pitch needs more set-up than a single-storey Winston Hills roof
• How much repair work is folded in — tiles, valleys, flashings
• Coating system and number of coats
• Tank water and catchment requirements on acreage properties
• Tree cover, which increases cleaning time and preparation

The inspection is free, you get photographs of the ridge lines and tile condition, and the written quote follows. No obligation either way.

Call (02) 9100 0388 to talk about your roof, or request a free inspection.

Restoration across the district

Tile restoration in Winston Hills, Baulkham Hills, Cherrybrook and every suburb on the service areas list.