Concrete & spalling repair
Concrete cancer in slab edges, balconies, columns and car parks. Break out, treat or replace reinforcement, reinstate, and apply protective coatings.
Strata & remedial building · Sydney
Remedial works for strata buildings.
Concrete repair, balcony waterproofing, roofs and façades, run by a licensed builder. Every quote is itemised, and every hidden stage is photographed before it's covered.
Licensed NSW builderHome warranty (HBCF) eligibleFixed once. Finished properly.
Heritage façade
Balcony & balustrade
53%
Why remedial work is growing
Half of NSW strata buildings inspected had a serious defect.
The 2025 NSW Strata Defects Report surveyed 520 buildings. Waterproofing was the most common defect (44%), and the average cost to fix serious defects was about $215,000 a building. Most NSW strata schemes were registered before 2000, so salt air, ageing membranes and concrete cancer are now routine work for capital works funds.
SOURCE: BUILDING COMMISSION NSW & STRATA COMMUNITY ASSOCIATION (NSW), 2025 STRATA DEFECTS REPORT
Services
The work that keeps a building watertight and sound.
We build to your engineer's scope, or arrange the engineer and regulated designs where the work needs them.
Balcony & podium waterproofing
Strip tiles and screed, re-grade, new membrane, 24-hour flood test, new tiles and drainage. Done one balcony stack at a time so residents can stay home.
Roof restoration & replacement
Tile and metal roofs on walk-ups and towers: rebed and repoint, valleys, flashings, box gutters, membranes and full re-roofs.
Façade, render & repaint
Crack repair, render, sealants and full repaints, using scaffold, swing stage or rope access depending on what the building and budget suit.
Windows, doors & balustrades
Replacing failed windows and sliding doors, re-flashing openings, and upgrading balustrades to current code.
Leak investigation & defect rectification
We find where the water is getting in before we quote a fix, then rectify defects listed in building and bond inspection reports.
How we work
The same six stages on every job, big or small.
Inspect
We walk the building with the manager or engineer, open up where we need to, and photograph everything.
Itemised quote
Line-item pricing with provisional sums and hidden-condition allowances shown upfront, so the general meeting votes on a realistic number.
Approvals & compliance
Contract, insurances, home warranty where it applies, regulated designs and declarations, SWMS and the asbestos register checked.
Resident notice
A programme in the lift lobby, letterbox notices before each noisy or access-affecting stage, and one phone number for questions.
Build with hold points
Every stage that gets covered is photographed and logged, and every variation is priced and approved in writing before the work is done.
Handover pack
As-built photos, warranties, product data, compliance certificates and a maintenance schedule for your capital works plan.
For strata managers & engineers
A contractor you can put in front of a committee.
You carry the relationship with the owners. We make sure nothing we do lands back on your desk.
Quotes that survive the EGM
Itemised, with exclusions and provisional sums written in plain English. No low headline number that turns into variations later.
One point of contact
One named project lead handles residents, trades, the engineer and the certifier. You get a summary, not twenty emails.
Small jobs too
Leaks, roof repairs and make-safes are how you get to know a contractor. We take them on and treat them like the big ones.
DOCUMENTNSBC Compliance Pack
ISSUED TOStrata managers
REVOn request
- NSW contractor licence (builder)
- Certificates of currency: public liability, workers compensation, contract works
- Home Building Compensation Fund eligibility (where the work requires it)
- WHS management plan and job-specific SWMS
- Sample itemised quote and handover pack
Selected work
Built to a high-end finish standard, in buildings people live in.
Our team comes from premium residential building on the North Shore and in the Eastern Suburbs. That's the finish standard we bring to common property.
Strata remedial case studies, with before and after photos, hold-point records and project values, will be added here as current projects finish.
Leaks & water damage
Water coming in? We find the source before we quote the fix.
Most failed repairs treat the stain, not the cause. We trace leaks from balconies, roofs, windows and wet areas with moisture mapping and flood tests, then give you a fix that's priced line by line.
Questions
What managers and committees ask us.
Will you quote to our engineer's scope?
Yes. We price exactly what's specified, list any assumptions, and flag anything in the scope we think needs the engineer's attention before tender rather than after.
How do you price what can't be seen until the tiles come up?
With provisional sums and rates that are agreed upfront (per square metre of concrete repair, per linear metre of crack injection, and so on). If we find more, you get photos and a price before any extra work starts.
Can residents stay in the building?
Almost always. We stage the work by balcony stack or elevation, give notice before each stage, and keep one phone number and a lobby programme up to date.
Do you take on small jobs?
Yes. Leak investigations, roof repairs and make-safes are a good way to see how we work before you trust us with a capital works project.
Do you work on houses?
Yes. Alongside strata buildings we take on leak investigations, roof repairs and water damage on houses, with the same itemised quote and photographed hold points.
Contact
Book an inspection or request a quote.
Send us the building address and what you're seeing. Photos help. We'll come back within one business day.
Andrew Stenos0450 477 992
Emailhello@northshorebuildco.com.au