Roof Repointing in Thornlie
Professional roof repointing services for Thornlie homes and businesses. Licensed, insured, and backed by Dulux 15-year manufacturer warranty on materials. Suitable for terracotta tiles and concrete tiles across Thornlie.
65+ completed roofing jobs on record in Thornlie

Licensed & Insured
Dulux Accredited
5 Stars
Free Quotes
Why Choose Us for Roof Repointing in Thornlie?
The mortar joints between tiles and around ridge caps on Thornlie's aging roofs have cracked and separated from decades of heat stress and weather exposure. Repointing is the most common leak source we see in this suburb because water runs straight through failed mortar joints into the interior. The original 1970s-1980s mortar was stiff and brittle, which is why it fails so badly with age. Proper repointing replaces the old mortar with flexible compound that can move with the roof's thermal expansion and contraction. Full repointing across a home typically runs $2,500 to $4,500. It's essential for Thornlie's aging stock and is included as part of comprehensive restoration, but if pointing is your main problem, we can address it standalone to stop leaks before they get worse.
Repointing in Thornlie is probably the most important part of restoration because the original mortar is 40 to 50 years old and completely failed in most homes. Cracked, crumbling, separated mortar allows water into the substrate and provides no weatherproofing anymore. Repointing with flexible compound, not rigid cement, is essential because it accommodates thermal cycling. Tiles move with temperature changes and rigid mortar just cracks again. The northeast-facing side of Thornlie homes shows the worst failure.
Roof restoration in Thornlie for ageing 1970s and 1980s homes, including repointing and tile renewal. Dulux Acratex accredited, 15 year warranty. Free quotes.
What's Included
- Free Satellite Quote - We measure and assess your roof from professional satellite imagery, no on-site inspection needed
- Fixed-Price Quote - No hidden costs, transparent pricing before work begins
- Professional Service - Licensed tradespeople with years of Thornlie experience
- Premium Materials - Dulux Acratex products with 15-year manufacturer warranty
- Quality Guarantee - 12-month workmanship warranty on all services
Local Thornlie Expertise
Recent Roof Work in Thornlie
A sample of real jobs from our records in Thornlie.
Full roof restoration
338 m² · Centurion · Charcoal · 2020
Roof repointing
326 m² · Centurion · Charcoal · 2022
Benefits of Roof Repointing for Thornlie Properties
Stops the leaks before they start
Cracked, crumbling pointing is how water gets under your ridge caps and into the roof. Repointing seals those joins back up and keeps the weather out.
Flexible pointing that lasts
We use flexible pointing compound, not the old rigid cement mortar that cracks the first time the roof moves. It flexes with the tiles through Perth's hot-cold cycles instead of splitting.
Cheaper than a restoration
If the tiles are sound and only the pointing has gone, repointing fixes the actual problem for a fraction of what a full restoration costs.
Tidies up the roofline
Fresh, even pointing in a colour that suits the roof makes the whole house look cared for, which matters if you're selling.
Our Roof Repointing Process in Thornlie
- 1
Inspect the ridges
We get up and check every ridge and hip cap, the bedding under them and the existing pointing, and tell you what's actually failed.
Why it matters: Sometimes it's just pointing, sometimes the bedding underneath has gone too.
- 2
Rake out the old pointing
The cracked and loose pointing is raked out back to sound material so the new compound has something solid to key into.
Why it matters: New pointing over crumbling old pointing just fails again.
- 3
Re-bed where needed
If the mortar bed under a ridge cap has broken down, we re-bed the cap properly before pointing. Pointing alone won't hold a cap that's sitting on failed bedding.
Why it matters: The bedding holds the cap, the pointing seals it.
- 4
Apply flexible pointing
Flexible pointing compound goes on in a clean, even line, colour-matched to the roof.
Why it matters: Flexible compound moves with the roof and stays sealed.
Roof Repointing in Thornlie - FAQs
Do you provide roof repointing in Thornlie? ▾
Yes. Roof Restorers Perth provides roof repointing across Thornlie and nearby Sorrento, Applecross, Port Kennedy. Roof restoration in Thornlie for ageing 1970s and 1980s homes, including repointing and tile renewal. Dulux Acratex accredited, 15 year warranty. Free quotes. Call 6388 4492 for a free, no-obligation quote.
Is repointing just cosmetic or does it actually protect the roof? ▾
It's structural. Failed mortar is the main leak cause in Thornlie. Water runs straight under tiles where mortar's cracked. New mortar seals the joints properly and stops water penetration.
How long does repointing last? ▾
With flexible compound and Thornlie's climate, you're looking at 10 to 15 years. After that some joints may need touch-ups. If you skimp and use cheap rigid mortar it fails within 2 to 3 years.
How much does roof repointing cost in Perth? ▾
It depends on how many ridge and hip caps the roof has, how much bedding needs redoing, and access. Call 08 6388 4492 or request a quote for a fixed price on your roof. Repointing is far cheaper than a full restoration when the tiles themselves are still good.
What's the difference between repointing and rebedding? ▾
Bedding is the mortar bed the ridge cap sits on. Pointing is the flexible compound that seals the join on top. Rebedding relets the cap on fresh mortar; repointing seals it. A cap with failed bedding needs both, and we'll tell you which yours needs.
How long does repointing last? ▾
Flexible pointing applied over sound bedding typically lasts 10 to 15 years or more. The old rigid cement pointing it replaces often cracks within a couple of years because it can't move with the roof.
Do I need repointing or a full restoration? ▾
If the tiles are sound and only the pointing and bedding have failed, repointing fixes it for much less. If tiles are cracked and the roof's faded too, a restoration makes more sense. We'll give you a straight answer after we look.
Can you match the pointing colour to my roof? ▾
Yes. Flexible pointing comes in a range of colours, so we match it to the tiles for a clean, consistent look.
What Our Customers Say
"⭐⭐⭐⭐⭐ Really friendly, trustworthy. They did great work, kept everything tidy, and charged a fair price. Would definitely use them again!"
"The roof is looking better than ever! Took great care with clean up too. Great communication and professional service from these guys."
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