Rooflight sun tunnels are an ideal way to bring natural daylight into rooms where traditional roof windows are difficult, expensive or impossible to fit. They channel sunlight from the roof down a reflective tube to brighten dark spaces such as bathrooms, hallways, lofts and internal rooms. Professional rooflight sun tunnel fitting ensures maximum light performance and a weatherproof finish.

Why Choose Rooflight Sun Tunnels?

Rooflight sun tunnels give you much of the benefit of a roof window, but without major roof alterations or planning issues. As a result, they offer:

• Natural daylight all year round
• Lower energy usage
• Quick installation
• Minimal disruption
• No structural changes needed
• Discreet, modern interior diffusers

They are suitable for houses, bungalows, extensions, flats, loft conversions and garage roofs.

@home.for.you72

The best thing we put in our bathrooms … The sun tunnels! ☀️ Before we started this renovation I had no idea what a sun tunnel was but our architect had mentioned we use them in our main bathroom and landing to bring in more natural light and when we planned our windowless en-suite @salthaveninteriors recommended one to bring in light. We have two (we didn’t do the hall in the end) and they have transformed our bathrooms from dark rooms to bright spaces. We have also used big mirrors, white tiles and light floors to bounce light around. If you have a dark space or a room without a window I’d really recommend looking into them. You need to access the roof space for the light to come in (I’ll share a pic of our loft in stories so you can see how they work). Have you heard of these before? Would they be useful in your home? X (We bought our sun tunnels from @velux ) Taps and shower @crosswater_uk #homedecor #housedesign #homedesign #interiordesign #interiorstyling

♬ original sound – home for you

Suitable Roof Types

Rooflight sun tunnel fitting works on almost every roof type:

• Slate roofs
• Tile roofs
• Flat roofs
• Dormer roofs
• GRP and EPDM roofs
• Utility and extension roofs

A qualified installer will select the correct flashing kit for your roof material so the system remains fully weatherproof.

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Rigid vs Flexible Rooflight Sun Tunnels

Choosing the right type affects brightness, installation complexity and cost.

Type	Best Use	Brightness	Typical Cost (Installed)
Rigid	Long straight runs, high-ceiling rooms	Very high	£900 – £1,800
Flexible	Tight or awkward loft spaces	Medium	£600 – £1,200

Tip: Rigid tubes typically provide up to 60% more daylight than flexible tubes.

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Rooflight Sun Tunnel Brands

A range of trusted manufacturers supply rooflight sun tunnels in the UK:

Velux Rooflight Sun Tunnels

Reliable flashing systems for tile, slate and flat roofs.

Solatube Daylighting

Premium reflectivity and best-in-class daylight performance.

Fakro Light Tunnels

Great value fitting kits for standard pitched roofs.

LiteLite Tubular Rooflights

Affordable daytime lighting for smaller jobs and tight budgets.

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Rooflight Sun Tunnel Installation Process

A professional installer follows these steps:

1. Roof inspection and positioning
2. Cutting the roof opening
3. Fitting flashing and sealing
4. Installing rigid or flexible reflective tubing
5. Mounting the ceiling diffuser
6. Insulating around the tube to prevent condensation
7. Final weatherproof test

Most installations take 2–4 hours.

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Rooflight Sun Tunnel vs Standard Rooflight

Both products increase natural light, however they work differently.

Feature	Rooflight Sun Tunnel	Standard Rooflight (Velux)
Structural work	Minimal	Moderate to high
Cost	Lower	Higher
Privacy	Excellent	Moderate
Heat loss	Minimal	Moderate
Light type	Diffused daylight	Full daylight view

For rooms without a direct external wall or roof window space, sun tunnels are often the best solution.

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Typical Rooflight Sun Tunnel Costs

Prices depend on roof type, tube length and brand. Use the guide below for general budget planning:

• Basic installation: £600 – £1,200
• Premium rooflight sun tunnel fitting: £1,200 – £2,500
• Flat roof fitting: £1,200 – £2,800
• Rigid tube upgrades: £200 – £600

Get multiple quotes to find the best deal.

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Extra Options

Upgrade your system with:

• Condensation kits
• LED night lights
• Insulation sleeves
• Frosted or prismatic diffusers
• Dimmable daylight control

These add comfort and improve performance in specific rooms.

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Get Free Rooflight Sun Tunnel Fitting Quotes

Tell us about your home and receive up to four free quotes from local specialists. All installers are vetted, insured and approved for rooflight fitting across the UK.

Brighten dark rooms with natural light — request your free rooflight sun tunnel quotes today.

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Frequently Asked Questions

Do rooflight sun tunnels need planning permission?

Normally, no. They’re classed as permitted development for most properties.

Can you fit a sun tunnel through a loft?

Yes. Installers route the reflective tube through the loft space to the ceiling below.

Do rooflight sun tunnels work on flat roofs?

Yes. Flat roof kits and membrane seals ensure a weatherproof installation.

Is a rigid tube better than a flexible tube?

Rigid tubes deliver more daylight, especially on longer runs.

Can anyone fit a rooflight sun tunnel?

A professional roof installer should fit it to guarantee a watertight seal and proper insulation.