Garage door replacement in Sydney
If you are swapping out a tilt door, know what changes. B&D says a tilt door protrudes forward as it opens, and offers its Flex-A-Door as a replacement: it sits behind the opening and lifts on a curving track from upright to flat near the ceiling, so a car can park right up against it.
A sectional door works differently. B&D describes panels that run up on tracks and then across the ceiling. Steel-Line makes its sectional doors at least 25mm wider than the opening on each side and 30mm taller, so a 2130mm opening takes a 2160mm door.
Room a new door needs: Steel-Line's figures
| Sectional | Roller, A and AA series | |
|---|---|---|
| Headroom above the opening | 290mm standard, 200mm or 150mm with a low headroom kit, plus 50mm with an opener | 430mm to 510mm, which Steel-Line calls a guide only |
| Side room | 125mm standard, 150mm for low headroom | 90mm to 125mm by hand, 120mm to 150mm with an opener |
| Where the door goes when open | Along tracks under the ceiling | Rolled up in a drum above the opening |
Bushfire-prone and coastal streets
A lot of Sydney sits near bushland, and the NSW RFS describes six Bushfire Attack Levels, from BAL-LOW to BAL-FZ. On new building work, the BAL assessment and the building surveyor set what a door has to meet. For an existing home, the NSW RFS says upgrading is recommended but not mandatory. B&D says its BAL-Maze system for Panelift sectional doors was tested by the CSIRO up to BAL-40, and that BAL-Maze is not available on roller doors.
Near the sea, read the warranty before you choose a finish. Steel-Line's warranty excludes installations within 800 metres of the sea, and Gliderol's 7 year corrosion cover on a roller curtain does not apply within 800 metres of a high salt concentration.
Adding an opener to a new door
B&D's Smart Pro manual asks for a properly earthed 3 pin power point on the ceiling within an arm's length of the opener, installed by a qualified electrical contractor. In NSW that is electrical wiring work, so a licensed electrician puts it in and submits a CCEW. Where a suitable point is already there, the opener just plugs in.
New doors around Sydney
Brand new estates
Camden had the strongest population growth of any Australian council area in the year to June 2021. Steel-Line says brick dust from building work nearby is a common cause of a noisy new sectional door.
Strata townhouses
Changes to the outside of a strata property are major renovations, the NSW Government says, and only the owners corporation can approve them. Ask the strata manager before ordering.
Paddington laneways
Woollahra's Paddington controls allow panel-lift doors and roller shutters on rear lane garages only inside a masonry surround, with a dark paint finish recommended.
The NSW position
Legal Aid NSW treats installing a garage door as outside home building work, but any wiring for its opener needs a licensed electrician.
What we would do
Ask every quote to name the exact door model, its finish and the opener. Then you can check the maker's own space figures and warranty terms against your garage, and compare one quote with another like for like.

