Sydney remedial and strata builders since 1991.
Since 1991 we have specialised in remedial work and waterproofing across Sydney, and we are also the builders owners call for renovations, attic conversions and extensions. Licensed, insured, and still answering the phone the same day.
- Licence
- 285018C
- Reply
- Same business day
- Warranty
- 12 months workmanshipplus your statutory rights
- Accredited
- Master Builders · HIA
- Established
- 1991
- Where we work
- Greater Sydney
- Insurance
- Public liability, PIand Home Building Compensation where required
- Office
- Eastwood NSW
Finished properly, and finished when we said it would be
Balconies, bathrooms, roofs, facades and attic conversions across the north and west of Sydney.





What a proper repair changes, and what a cosmetic one hides
Drag the handle across. On the left is the finished balcony: a new membrane, falls corrected so water runs to the outlet, new tiles laid over the top, and a slab edge that has stopped weeping.
Before
After
Illustrative of the work, not a specific client property.
We are paid to know what a building is made of, and how it fails
Sandstone weathers, brickwork loses its mortar, render cracks, membranes go brittle and reinforcing steel corrodes, and each of them does so on its own timetable. Knowing which one you are looking at is the difference between a repair that lasts and one that only looks finished.



From a single leaking balcony through to a full renovation
Remedial work is our specialism and where most jobs begin, but whatever the job, it is the same crew, the same paperwork and the same warranty.
Waterproofing
Balconies, podium decks, rooftops, planter boxes and wet areas, stripped back and rebuilt with manufacturer-backed membranes.
AS 4654.2Concrete repair
Cut back to sound concrete, treat the exposed steel, rebuild with repair mortars and seal with anti-carbonation coatings.
Spalling · injectionFacade remediation
External wall repair, render patching, expansion joint replacement and protective coatings, to get the envelope sealed again.
Before a special levyRoofing
Restoration, re-pointing, leak detection and repairs to both metal and tile, built for what Sydney weather actually does.
National Construction CodeStrata maintenance
Scheduled inspections and a maintenance program for common property, so the small things get caught while they are still small.
Common propertyRenovations
Bathrooms, kitchens, attic conversions, extensions and commercial fit-outs, under the same licence and the same warranty.
Licence 285018CFour kinds of client, and one way of working
Most of our work comes through strata committees and their managers, but a homeowner with one bathroom gets the same crew, the same paperwork and the same warranty.
Strata and body corporate
Common property repairs, scheduled maintenance and capital works for unit blocks, with the documentation your committee needs.
Property managers
Repairs and upkeep across a rental portfolio. One person owns the job, so you are not chasing three trades for one address.
Homeowners
A leaking balcony, a bathroom, an attic conversion or an extension. The same discipline we bring to a forty unit block, on your own house.
Commercial and retail
Fit-outs, facade repair and building remediation for shops, offices and commercial space, worked around your trading hours.
Five standards this office runs on
Most builders promise good work, but the difference usually shows up in the paperwork, so ours is written down and everyone here is held to it.
We answer the same business day
Your enquiry is answered the same business day it arrives. Every quote is chased on day 7 and day 14, and ends with a written result: won, lost or expired.
We investigate rather than guess
Prices come off the rate list or from Rodney. What we cannot see, we exclude in writing rather than pad into the price.
Everything goes in writing
What was agreed is recorded with the name of whoever agreed it, your reference is copied exactly onto everything, and the work is photographed as it goes.
One person owns the job
One person owns your job from first email to work order, so you are never re-explaining the building to somebody new.
Anything unexpected is raised early
If the site visit turns up something you did not ask about, you hear about it before we quote, not after we invoice.
And the one nobody here bends. If the safety paperwork is not done, day one moves. Asbestos means stop. Heights mean a method statement. Those rules protect your residents as much as they protect our trades.
Two defects worth catching before they spread
Both have a cheap repair that looks finished on the day and fails again within a couple of years, and we would rather you could tell the difference before you accept a quote.

Staining on a balcony soffit
White salty deposits along the slab edge and a damp patch on the ceiling below usually mean the membrane under the tiles has failed, or was never turned up far enough at the door threshold.
Re-grouting seals the top and traps the water underneath.

Concrete spalling and cracking
Rust staining and cracks running in straight lines mean moisture has reached the steel inside. As it corrodes it expands and pushes the concrete off from within.
Patching without treating the steel lets go again inside a couple of years.
If you recognise either of these on your building, the inspection is free and you get what we find in writing, whether or not you go ahead with us.
Book a free inspection“I was braced for resident complaints the whole six weeks. Barely got any.”
- Scope
- 40 balconies
- Duration
- 6 weeks
- Leaks since
- None
- Variations
- Nil
We work across the north and west of Sydney
The office is in Eastwood, and the crews work right across the north and west of Sydney. If your building sits just outside that, ring anyway and we will tell you honestly whether we can get to it.
- Eastwood
- Epping
- Ryde
- Chatswood
- Macquarie Park
- North Sydney
- Parramatta
- Carlingford
- Marsfield
- West Ryde
- Meadowbank
- Gladesville
- Ermington
- Dundas
- Hills District
Are you licensed and insured?
Yes. RJ BIRD Building holds NSW builder licence 285018C and carries both public liability and professional indemnity cover. You can check the licence yourself on the NSW Fair Trading licence checker, which is the point of putting the number on the page.
How quickly will I hear back?
The same business day your enquiry arrives. If you send a reference number we copy it exactly onto everything that comes back to you, so it files cleanly at your end.
What does remedial work cost?
Every building is different, which is why the site inspection is free. You get an itemised quote with the scope written plainly and the exclusions stated, priced off our rate list rather than guessed. Nothing starts until you are comfortable with both the price and the scope.
Do you work with strata managers and owners corporations?
They are most of our work. You get photographic progress records, documentation tidy enough for your files, and one named person who owns the job from the first email to the work order. We are happy to attend committee meetings where that helps.
What is concrete cancer, and can it be fixed?
It is the steel reinforcement inside the concrete corroding. As it corrodes it expands and pushes the concrete off from within, which is why you see rust staining and straight-line cracks. It is very fixable: cut back to sound concrete, treat the exposed bar, rebuild with repair mortars and seal with an anti-carbonation coating so it does not start again.
Do you take on renovations and attic conversions?
Yes. Alongside the remedial and strata work we do bathrooms, kitchens, attic conversions and extensions. An attic conversion adds a room without extending the footprint, and we handle the structure, skylights, stairs and insulation under the one licence, with the same 12-month workmanship warranty.
We work out what is actually wrong, repair it properly, and stand behind it.
That has been the whole idea since 1991, and it has not needed changing.
Tell us what you have noticed, and we will take it from there
You will hear back from us the same business day. If you have a reference number, include it and we will copy it onto everything we send you.
-
Phone 02 8355 7766
-
Office Suite 5/1 Trelawney Street, Eastwood NSW 2122
-
Hours Mon to Fri, 7:00am to 5:00pm Open now
- NSW licence
- 285018C Verify (opens in a new tab)
- ABN
- 48 606 543 382
- Insurance
- Public liability, professional indemnity, and Home Building Compensation cover where the job requires it
- Memberships
- Master Builders NSW · HIA
Your request has reached the office.
We will be in touch the same business day. If it is urgent, call the office on 02 8355 7766.
- 1We call you
We ring you the same business day to understand the situation. Expect questions rather than a sales pitch.
- 2Free site inspection
We come out, work out what is actually wrong, and photograph everything, so the record is yours to keep.
- 3An itemised quote
The quote is priced off the rate list with every exclusion written down, so you can compare it honestly against anyone else’s.