Masonry & Restoration in Collaroy
Concrete cancer, salt damage and coastal masonry across Collaroy and Narrabeen.
Quick answer
Romans Building Services provides masonry, heritage restoration and structural repair in Collaroy, Sydney, with work matched to the suburb's building age, materials and common movement or salt-damage patterns.
Last updated: 2026-05-29
Collaroy is beachfront Northern Beaches country. Salt air is relentless, storm damage is a real thing, and buildings show the wear. Apartment blocks along the beachfront and homes in the sloped streets behind all have the same issues: rusting reinforcement in concrete, render failing in patches, mortar eaten out of brickwork, retaining walls losing their grip.
Concrete cancer is the biggest job in Collaroy — most apartment blocks built before 1990 have it somewhere. We cut back to sound concrete, treat the steel with corrosion inhibitor, patch with salt-resistant mortar, and apply breathable protective coatings that actually hold up in this environment.
We also handle coastal render repair, retaining walls and general masonry across the Narrabeen and Collaroy area. The work that lasts here is the work done with the right materials — breathable, salt-resistant, and properly detailed.
What Collaroy homes and buildings need
Collaroy has beachfront apartment blocks from 1960s–80s, mid-century homes, and newer beach houses. Heavy coastal salt exposure. Concrete cancer common on apartment balconies, parapets and exposed slabs. Sandy soil on some blocks affects retaining walls. Storm damage from big swells can cause structural issues on beachfront properties.
Recent work across the Northern Beaches
Examples of jobs we've done with the same materials, conditions and craft you'd find on a property in Collaroy. Photography is from real Romans Building Services projects, not stock.
What we do in Collaroy
- Concrete cancer assessment and repair
- Balcony and parapet restoration
- Salt-resistant render replacement
- Coastal masonry repointing
- Retaining wall repair
- Strata-managed remedial programs
Masonry & building services we offer in Collaroy
Full scope of work Romans Building Services handles across Sydney. Click through for detail on each service.
Common Questions — Collaroy
How bad is salt damage in beachfront Collaroy apartments?
Severe. Buildings directly on the beachfront take 2–3x the salt load of inland apartments. Reinforcement concrete cancer is often visible by 15–20 years on beachfront blocks if the original concrete cover was marginal. Regular inspections and proactive repair are the only way to keep ahead of it.
What is the right render for a Collaroy beachfront home?
A breathable salt-resistant render — lime-based or polymer-modified, never a rigid cement render with acrylic paint. The render needs to let moisture escape from the wall rather than trapping salt inside.
How often should a Collaroy apartment block have a condition inspection?
For blocks within 500m of the beach, we recommend full condition inspections every 5 years. Sooner if concrete cancer has been identified in any section. Between inspections, keep an eye on balconies and parapets — if you see rust stains or cracks, call for a look.
Common problems we see in Northern Beaches
The structural and masonry issues that come up most often across Northern Beaches housing stock.
Need a quote in Collaroy?
Call Minas directly or fill in the form. We will get back to you within 24 hours.