Fixed vs. Opening Skylights vs. Sun Tunnels – Which One Is Right for Your Home?

Skylights are a fantastic way to brighten your home, improve airflow, and reduce your reliance on artificial lighting. But when it comes to choosing the right type — fixed skylight, opening skylight, or sun tunnel — each option serves a different purpose.

In this guide, we break down the differences so you can make the best choice for your space, style, and budget.

1. Fixed Skylights – Bright, Simple, and Stylish

Overview:Fixed skylights are sealed units that allow natural light into your home without the option to open them.

Where They Work Best:

• Living rooms

• Stairwells

• Bedrooms

• Areas where ventilation isn’t needed

Advantages:

• Brings in plenty of daylight

• Sleek, modern look

• Fewer components = low maintenance

• Generally more cost-effective

Things to Consider:

• Doesn’t offer airflow

• Can increase heat without shading

Typical Costs (Melbourne):

• Skylight supply: $400–$900

• Installation: $600–$800

• Plaster Shaft $1200

Fix Skylight with a Plaster Shaft

2. Opening Skylights – Let There Be Light and Air

Overview:These skylights open manually or via solar/electric operation to allow ventilation and natural cooling.

Best Suited For:

• Bathrooms

• Kitchens

• Attics or upstairs bedrooms

• Anywhere moisture builds up

Advantages:

• Allows hot air and moisture to escape

• Reduces condensation

• Brings in both natural light and fresh air

• Can include blinds for heat control

Things to Consider:

• Higher cost due to mechanics

• Remote/electric options need setup

• Requires occasional maintenance

Typical Costs (Melbourne):

• Skylight supply: $1000–$3000

• Installation: $700–$900

• Plaster Shaft $1200

Opening Skylights

3. Sun Tunnels – Compact Light for Small Spaces

Overview:Sun tunnels (also called solar tubes) are reflective tubes that funnel sunlight into small or windowless rooms.

Ideal For:

• Hallways

• Pantries

• Closets

• Toilets or laundries

Advantages:

• Perfect for tight spaces

• Quick to install

• Very energy-efficient

• Clean and discreet design

Things to Consider:

• No ventilation

• Limited light spread compared to full skylights

• Not ideal for high ceilings or complex shafts

Typical Costs (Melbourne):

• All-inclusive installation: $1,000–$2,000

Quick Comparison Table

Feature	Fixed Skylight	Opening Skylight	Sun Tunnel
Daylight	✅✅✅	✅✅✅	✅✅
Ventilation	❌	✅✅✅	❌
Best Room Type	Living, Bedroom	Kitchen, Bathroom	Hallway, Closet
Maintenance	Low	Medium	Low
Installation Time	1 day	1–2 days	Half-day
Price Range (AUD)	$400–$900	$1,000–$3000	$1,000–$2,000 Total price supply and installation

How to Choose the Right One

• Fixed skylights are great for brightening large rooms without needing airflow.

• Opening skylights are perfect where moisture or ventilation is a concern.

• Sun tunnels are ideal when you want to brighten a tight, windowless area.

• 
  

Need help deciding? We’re happy to assess your space and recommend the best skylight solution for your home.

Let Us Help You Transform Your Space

At Luminous Skylights, we specialise in custom installations that blend light, airflow, and beautiful finishes. Whether you’re after a sleek flush look or a full plaster shaft build, we take care of the entire process — from roof cut to internal finish.

📞 Reach out today to book your on-site consultation or request a fast quote.