A skylight in Sydney generally costs $800 to $5,000 installed, and custom architectural glazing can cost more. A small fixed unit on an easy single-storey roof sits at the bottom of that range; a large opening or custom skylight on a steep or hard-to-reach roof sits at the top. Labour, flashing and internal finishing often cost more than the skylight itself.
This guide breaks the price down by skylight type and size, shows what you pay for supply, labour, and extras, provides worked examples of how a quote adds up, and explains the council, BASIX, and strata rules that apply in Sydney.
Key points:
- Compare installed quotes, not product prices. A low headline price usually leaves out labour or finishing.
- Roof access and condition move the price more than the product does.
- Bigger isn’t better: the Australian Government recommends a skylight area of 3-5% of the room’s floor area.
- Most skylights in NSW are exempt from development, but heritage areas, strata and bushfire-prone land change that.
Skylight Prices in Sydney by Type and Size
Installed skylight prices in Sydney range from about $800 for a small fixed unit to $5,500 for a large electric or solar-opening skylight, with custom glazing quoted individually.
| Skylight type | Size | Supply only | Typical installed |
| Fixed | Small to medium | $380 to $1,050 | $800 to $2,000 |
| Fixed | Large | $1,050 to $2,000 | $1,500 to $5,000 |
| Opening or ventilated, manual | Standard sizes | $1,250 to $2,050 | $2,000 to $4,000 |
| Opening or ventilated, electric or solar | Standard sizes | $2,400 to $3,250 | $3,200 to $5,500 |
| Custom or architectural glazing | Made to measure | Quoted individually | $3,000 to $8,000 and above |
Within each type, larger units cost more because they require more glazing, a larger roof opening, additional framing, and more complex flashing. Opening skylights cost more than fixed ones because of the hardware, and electric or solar units may also need an electrician. If you’re still choosing a type, Skylights 101 compares how each works.
What you Pay for: Supply, Labour and Extras
A skylight quote has three parts: the unit (supply), the work to fit it (labour), and anything your roof or ceiling needs beyond a standard installation (extras). Separating them is the easiest way to compare quotes.
| Supply | Labour | Extras (quoted separately) |
| Frame, glazing and hardware | Cutting and framing the roof opening | Roof repairs or replacing damaged tiles or sheeting |
| Flashing kit for your roof type | Fitting the frame, flashing and weatherproofing | Structural alterations or extra framing |
| Light shaft and ceiling diffuser, which were used | Building and lining the internal shaft | Scaffolding or elevated work platforms |
| Motor, controls or solar panel for powered units | Plasterboard, cornice and paint making good | Electrical work for powered units |
| Removal and disposal of an old skylight | ||
| Shaft insulation, heritage or BAL-rated products |
Labour for a straightforward Sydney installation generally runs from $800 to $2,000. Where access is difficult, the roof is steep or structural work is needed, labour alone can run from $2,000 to $3,200 and beyond.
What moves labour most:
- roof pitch, height and safe access
- roof material (terracotta tile, concrete tile and Colorbond each need different flashing)
- the size of the opening and the framing it needs
- the length of the internal shaft and ceiling access
- the condition of the existing roof once it’s opened
Flashing is where installations succeed or fail. A premium unit with poor flashing will leak sooner than a basic unit weatherproofed properly, which is why the installer matters as much as the product. Our skylight installation service includes flashing and weatherproofing in accordance with Australian Standards, and a final check of seals, flashings, and glazing alignment. Hidden roof damage, such as perished flashing or rotten battens, is the most common surprise once work starts.
What Size Skylight Do You Need?
Use the Australian Government’s YourHome guide: a skylight area of 3–5% of the room’s floor area is typically enough, and tubular skylights need only 1–2%. YourHome also notes that a skylight can admit more than three times as much light as a vertical window of the same size, so small skylights go a long way.
| Room (approx. floor area) | Recommended skylight area (3–5%) |
| Toilet or small ensuite (4 m²) | 0.12 to 0.20 m² |
| Bathroom or hallway (8 m²) | 0.24 to 0.40 m² |
| Bedroom or study (12 m²) | 0.36 to 0.60 m² |
| Kitchen (20 m²) | 0.60 to 1.00 m² |
| Open-plan living (30 m²) | 0.90 to 1.50 m² |
Oversizing costs you twice: once at installation and again in comfort. YourHome states that roof glazing receives almost twice as much heat as an unprotected west-facing window of the same area, and that heat transfer through sloped glazing is typically 40% greater than through vertical glazing. For large rooms, YourHome suggests spacing skylights about 1.5 times the floor-to-roof height apart for even light.
Worked Examples: What a Skylight Quote can Look Like
These examples show how the ranges above combine for typical Sydney jobs. They are illustrations built from our published price ranges, not individual customer quotes; your price depends on your roof and room.
| Scenario | Skylight | Expected installed range | Likely extras |
| Dark hallway, single-storey brick veneer home with concrete tile roof, Western Sydney | Small fixed, double-glazed glass | $800 to $2,000 | Usually, none beyond ceiling finishing |
| Windowless bathroom in a two-storey terrace, Inner West | Manual opening of the skylight for ventilation | $2,000 to $4,000 | Scaffolding or access equipment; heritage check if street-visible |
| Kitchen in a coastal home with a Colorbond roof, Northern Beaches | Electric opening skylight | $3,200 to $5,500 | Marine-grade flashing and fixings; an electrician for power |
In every case, ask for the supply, labour and extras lines separately so you can compare like with like.
What Changes the Price Across Sydney
Sydney isn’t a single market, and your suburb affects what a skylight costs to install.
- Inner West. Heritage conservation areas and older terraces. Street-visible roof work can move the job out of the exempt pathway, and tight rear access often means materials go through the house.
- Eastern Suburbs and the CBD. Apartments, townhouses and duplexes mean strata. Any roof penetration needs the owners’ corporation approval first, which affects timing as much as cost.
- Northern Beaches and Sutherland Shire. Coastal exposure attacks flashing and fixings first. Corrosion-resistant flashing and marine-grade fixings cost more upfront but last far longer near the sea; YourHome recommends cleaning skylight exteriors every six months in coastal locations (see our skylight maintenance guide).
- Hills District and Western Sydney. Two-storey homes and higher rooflines need scaffolding or elevated work platforms more often. Bushfire-prone land brings Bushfire Attack Level (BAL) requirements under AS 3959, which affect product choice.
We work across all Sydney regions and can tell you which of these applies to your address before you commit.
Glass or Acrylic: What the Price Difference Buys
Acrylic skylights generally cost less upfront, but glass lasts longer, maintains clarity, and performs better thermally when double-glazed.
| Feature | Acrylic | Glass |
| Upfront cost | Generally lower | Generally higher |
| Long-term behaviour | Can yellow or become brittle under UV | Holds clarity over a long service life |
| Thermal performance | Limited in single-skin form | Strong when double-glazed with a Low-E coating |
| Overhead glazing compliance | Not a like-for-like substitute where AS 1288 requires compliant overhead glass | Laminated or toughened safety glass to AS 1288 |
| Best suited to | Garages, utility spaces | Living areas, high-UV and coastal homes |
AS 1288 Glass in buildings is the standard the National Construction Code calls up for overhead glazing, and AS 4285 covers factory-made rooflights. Every skylight we install uses safety-grade laminated or toughened glass. To compare thermal performance, check products in the Window Energy Rating Scheme’s WERS for Skylights database, or read our guide to energy efficiency of glass roofs versus skylights.
Council Approval, BASIX and Strata
Do you need council approval for a skylight in Sydney?
Usually not. Skylights, roof windows and ventilators are exempt development under Subdivision 37 of the NSW State Environmental Planning Policy (Exempt and Complying Development Codes) 2008, so most installations in an existing home need no planning or building approval if they meet the development standards. Those standards cover matters such as distance from boundaries, the skylight’s share of the roof area and, in heritage conservation areas, street-facing roof planes. If your property is heritage-listed, in a conservation area or on bushfire-prone land, check with your council or a certifier first.
When does BASIX apply to a skylight?
Only when the skylight is part of a larger project that needs a BASIX certificate. In NSW, BASIX applies to alterations and additions valued at $50,000 or more. Within that assessment, the NSW Planning Portal asks for each skylight’s area at roof level, including frame, frame material and colour, glass type, shading and the room it serves. Skylights under 0.7 m² may be left out, and tubular skylights are not included. A stand-alone skylight installation in an existing home usually does not need BASIX.
Strata properties
In an apartment, townhouse or other strata-titled property, the roof is usually common property. You need owners’ corporation approval before any roof penetration, so build the by-law process into your timeline.
Ready to Price Your Skylight?
Skylight cost comes down to the type and glazing you choose, the roof you’re cutting into, how easy it is to reach, and what has to be made good underneath. Compare itemised quotes that separate supply, labour and extras.
For a site-specific figure, tell us about your room, your roof and the light you want. We’ll advise on size, glazing and what the installation involves: free on-site quote, no obligation.
Call 1800 452 946 or request a free skylight quote.
Frequently Asked Questions
How much does it cost to install a skylight in Sydney in 2026?
Most skylights cost $800 to $5,000 installed, including GST. A small fixed unit on an accessible single-storey roof costs the least; a large electric opening skylight or a steep, two-storey roof costs the most. Custom architectural glazing starts around $3,000 and can exceed $8,000; for larger glazed areas, compare the cost of a glass roof extension. A site-specific quote is the only accurate figure.
How much of a skylight quote is labour?
For small and medium fixed skylights, labour is often the larger share. Labour for a straightforward Sydney installation generally runs from $800 to $2,000, compared with $380 to $1,050 to supply the unit. Difficult access, steep pitches or structural framing can push labour to $3,200 or more.
How much does it cost to replace an existing skylight?
A like-for-like replacement on an accessible roof is usually cheaper than a new installation because the opening already exists. Costs rise if you upsize, switch to an opening unit, or the old flashing or roof timbers are damaged. If only the glass or seal has failed, repair may be possible; our Sydney glazier team can assess it.
Will a skylight make my home hotter?
It can if it’s oversized or poorly placed. Roof glazing receives almost twice as much heat as an unprotected west-facing window of the same area. Sizing at 3–5% of floor area, choosing double glazing with a Low-E coating, and adding shading or an insulated shaft keep a skylight comfortable year-round.
How long does skylight installation take?
It depends on the job. Replacing a unit in an existing opening is quicker than cutting a new one. At the same time, structural framing, scaffolding, strata approval or custom-made glass all add time before or during the work. Ask for the expected on-site time and any lead time for the product in your quote.
