Staircase installation in Sydney: where to start
Staircase installation in Sydney might mean a new stair for a second-storey addition, a modern replacement for a tired timber stair, or new balustrades for safety. A staircase is a building element with strict rules on step sizes, handrails and balustrades. Design and measure carefully before choosing timber, steel, glass or a mix.
A stair is a designed building element. New installation and replacement require measured geometry and clear responsibilities for the structure, barriers and approvals.
What’s usually included
Every property is different, but a good quote for staircase installation should spell out items like these.
- Measured geometry and drawings
- Structural interfaces
- Materials and finish schedule
- Balustrade and handrail scope
- Installation and making good
How much does it cost?
A standard internal staircase is often quoted at around $4,000–$8,000 supplied and installed. Steel-stringer or open-riser designs can cost $15,000–$25,000, and floating stairs much more.
Supply and installation of the staircase, using national figures from a stair manufacturer's 2026 guide. Older Airtasker data puts basic stairs from about $900. Structural changes, new floor openings, balustrades and making good add to the cost.
Geometry, materials, support changes, access and finish influence price. Identify who coordinates the floor opening and structural work.
Indicative ranges only, compiled October 2026 from Aussie Stairs – The cost of replacing staircases in old homes (Aug 2026), Airtasker – How much does a new staircase cost? (updated Jan 2023). Your quote depends on your property and scope.
How long it takes: Installing a basic straight staircase can take around two days on site, after design and manufacturing time.
Licences, insurance and approvals
In NSW, staircase work worth more than $5,000 (incl. GST) usually needs a contractor licence, for example in carpentry, joinery or general building. New or altered stairs and balustrades must meet the National Construction Code.
Every member of our crew has their NSW licence verified and insurance sighted before joining, and agrees to quote in writing with their licence number shown. Before you sign, confirm the licence number on the quote using the NSW Government licence check, and make sure residential work over $5,000 (including GST) has a written contract.
Have these details ready
A clear brief gets you faster, more accurate quotes.
- New or replacement stair
- Available drawings
- Floor-to-floor dimensions if known
- Materials and access
Staircase installation: common questions
Can I order a stair from approximate measurements?
Final manufacture should follow verified site dimensions and approved details. Resolve tolerances and structural interfaces before ordering.
What are the rules for stairs in Australia?
The National Construction Code sets limits for riser height, tread depth and how they combine, plus rules for handrails and balustrades. For example, openings in a balustrade generally must not let a 125 mm sphere pass through. Your stair builder or designer should confirm that your design complies.
What staircase materials are popular?
Timber stairs in species such as spotted gum, blackbutt or Tasmanian oak are common and warm-looking. Steel stringers with timber treads suit modern homes. Glass balustrades open up a space, while timber or steel balusters suit more traditional styles. Choose materials that suit how much traffic the stair gets.
Can I replace just the balustrade?
Yes. Many homeowners update balustrades and handrails while keeping the existing stair. The new balustrade must meet current height and opening rules, and the fixings must suit the stair's structure. It is also a good chance to fix a wobbly handrail safely.
Do I need approval for a new staircase?
Replacing a staircase like for like inside a house often doesn't need a DA. A new stair in an extension, or changes to the structure or floor openings, usually form part of a building approval. Check with a certifier if the stair is part of larger works.