Fixed vs Opening Skylights
Compare fixed (non-opening) and opening/venting skylights on cost, performance, ventilation benefit, maintenance requirements and the right application for each type — using Velux Australia (fixed and opening range) and Natural Lighting Products (glass fixed and opening specialist) as reference points.
Winner
Velux Australia
Best overall option once average cost, coverage, and specialist expertise are weighed together.
Average Gap
$300
Difference in average pricing across overlapping service types.
Market Range
$1,200 - $6,000
The full low-to-high range across both options.
Velux Australia
National (Danish brand) · Est. 1941
From
$1,500
Average
$2,783
Coverage
12 areas
Best for: Homeowners wanting the most trusted brand name in roof windows, the widest product selection, comprehensive flashing systems and strong warranty support — the first choice for quality-conscious renovations and new builds.
Natural Lighting Products
Sydney, NSW · Est. 1995
From
$1,200
Average
$3,083
Coverage
7 areas
Best for: Sydney and NSW homeowners wanting flat glass skylights with superior thermal performance for new builds and premium renovations, and commercial property owners requiring large-format or high-performance glazed roof systems.
Side-by-Side Price Comparison
Compare overlapping service types directly so the right price anchor is clear before you request quotes.
| Service | Velux Australia | Natural Lighting Products | Difference |
|---|---|---|---|
| Fixed Roof Window (Installed) | $2050 | N/A | N/A |
| Opening Roof Window (Installed) | $2800 | N/A | N/A |
| Electric Roof Window (Installed) | $3500 | N/A | N/A |
| Glass Fixed Skylight (Installed) | N/A | $1900 | N/A |
| Glass Opening Skylight (Installed) | N/A | $2750 | N/A |
| Commercial Glass Skylight System | N/A | $4600 | N/A |
Verdict
Fixed skylights deliver natural light at lower cost and with simpler installation, fewer moving parts and no maintenance requirements for the opening mechanism. They are the right choice for living areas, bedrooms and any room where light is the primary goal. Opening skylights justify their 30–60% premium in kitchens, bathrooms and stairwells where natural ventilation meaningfully improves comfort and air quality. Electric opening skylights with rain sensors are the most functional option but carry the highest cost. Both Velux Australia and Natural Lighting Products offer quality products in both categories — the decision is driven by application and budget, not brand.
Recommendation
Choose a fixed skylight if your primary goal is natural light and budget is a consideration — the fixed unit delivers most of the benefit of an opening unit at significantly lower cost. Choose an opening skylight if natural ventilation is a genuine priority in the room (kitchen, bathroom, stairwell) and the budget accommodates the premium. Specify an electric opening skylight with a rain sensor if you want the maximum functionality and convenience.
Skylight Comparison FAQ
Common questions about comparing skylight types, brands and installation options.
Velux Australia is cheaper on average in this comparison, but the right answer depends on your specific requirements including skylight type, roof construction, glazing specification, ventilation requirements and service area coverage.
Skylight type (fixed, opening, tubular or electric), roof type, flashing quality, glazing performance, installation complexity and whether the provider covers your location. Always confirm what is and is not included before comparing quotes.
Choose a fixed skylight if your primary goal is natural light and budget is a consideration — the fixed unit delivers most of the benefit of an opening unit at significantly lower cost. Choose an opening skylight if natural ventilation is a genuine priority in the room (kitchen, bathroom, stairwell) and the budget accommodates the premium. Specify an electric opening skylight with a rain sensor if you want the maximum functionality and convenience.