Before and after comparison of dark Toronto hallway transformed by VELUX skylight installation with natural light

Skylights for Hallways and Stairwells: Brightening Dark Spaces in Toronto Homes

  • Blog
  • April 10, 2026

Every Toronto home has them — dark hallways that never see natural light, interior stairwells that feel enclosed and cave-like even on the brightest summer days, and transition spaces that rely entirely on artificial lighting from morning to night. These are the forgotten spaces of residential design, often treated as purely functional corridors rather than rooms worthy of natural light. Yet a skylight hallway stairwell toronto installation transforms these neglected spaces from dark passages into bright, welcoming transitions that connect the entire home with natural illumination from above. This guide covers the best skylight solutions for hallways and stairwells, including VELUX sun tunnels, fixed skylights, and venting skylights — with sizing guidance, costs, and installation considerations specific to Toronto homes.

Why Hallways and Stairwells Are the Darkest Spaces in Toronto Homes

Before and after comparison of dark Toronto hallway transformed by VELUX skylight installation with natural light

The architectural layout of most Toronto residential homes — particularly the century homes, war-era bungalows, and post-war two-storey designs that dominate GTA neighbourhoods — concentrates wall windows in the primary living spaces (bedrooms, living rooms, kitchens) where they provide view and ventilation. Hallways, corridors, stairwells, and foyers are positioned in the interior of the floor plan, surrounded by rooms on all sides, with no exterior wall surface available for a window. Even in newer open-concept Toronto homes, the upstairs hallway connecting bedrooms is typically an interior corridor with no access to natural light. The result is a permanent dependency on artificial lighting in the very spaces you walk through most frequently — a dependency that increases your electricity costs, reduces your home’s connection to the outdoor environment, and creates a stark, unwelcoming contrast between the bright rooms and the dark passages between them.

Best Skylight Options for Hallways

VELUX Sun Tunnels: The Top Choice for Hallways

For most Toronto hallway applications, the VELUX Sun Tunnel is the ideal solution. A sun tunnel (also called a tubular skylight or light pipe) consists of three components: a small rooftop dome that captures sunlight, a highly reflective rigid or flexible tube that channels the light through the attic space, and a ceiling-level diffuser panel that distributes natural light evenly into the room below. The sun tunnel is specifically designed for spaces where a full-size skylight is impractical — narrow hallways where a large skylight would be disproportionate, corridors beneath upper-floor rooms where there is no direct roof access, and small spaces where the cost of a full skylight installation is not justified by the room size.

VELUX Sun Tunnel Model Tube Diameter Illuminates Best For Installed Price
TMR (Rigid tube) 10″ or 14″ Up to 200 sq ft Direct roof-to-ceiling runs with minimal bends $800 – $1,500
TMF (Flexible tube) 14″ Up to 150 sq ft Complex attic routes with obstructions to navigate around $700 – $1,300
TLR (Rigid, flat roof) 14″ Up to 200 sq ft Flat-roof homes and commercial buildings $900 – $1,600

The rigid tube (TMR) delivers approximately 20 percent more light than the flexible tube because the smooth interior surface reflects light more efficiently. However, the flexible tube (TMF) can navigate around attic obstacles — HVAC ducts, plumbing vents, structural members — that would block a rigid tube installation. Toronto Skylight Installers assesses your attic configuration during the consultation to recommend the right model for your specific routing requirements.

Fixed Skylights for Wider Hallways

For wider hallways with direct roof access above — particularly in bungalows, one-and-a-half-storey homes, and homes with cathedral ceilings in the hallway area — a VELUX fixed skylight provides dramatically more natural light than a sun tunnel. A fixed skylight delivers the full intensity and quality of natural daylight, including the changing light patterns throughout the day and the visual connection to the sky that a sun tunnel cannot provide. For hallways, a fixed (non-opening) skylight is typically the right choice because ventilation is not a priority in a transit space, and fixed skylights are the most affordable option in the VELUX range.

 

Skylight Solutions for Stairwells

Multi-story Toronto home stairwell flooded with natural light from large VELUX skylights above

Stairwells present a unique opportunity for skylights that goes beyond simple illumination. Because a stairwell is an open vertical shaft connecting multiple floors, a skylight installed at the top of the stairwell distributes natural light downward through the entire vertical space — illuminating the upper landing, the staircase itself, and the lower foyer or entry simultaneously. This single skylight effectively lights three distinct spaces at once, providing exceptional value per dollar invested.

Stairwell Skylight Sizing Guide

Stairwell Type Recommended Skylight Size Installed Cost
Straight enclosed staircase (2-storey) VELUX Fixed (FS) or Sun Tunnel 21″ x 46″ or 14″ tunnel $1,500 – $3,500
Open stairwell with landing (2-storey) VELUX Fixed (FS) or Solar Fresh Air (VSS) 30″ x 46″ or 30″ x 54″ $2,500 – $5,000
Multi-storey open stairwell (3+ floors) Multiple VELUX Fixed (FS) or custom 2-3 skylights, 21″ x 46″ each $4,000 – $10,000
Spiral or curved staircase VELUX Sun Tunnel (flexible tube) 14″ tunnel $800 – $1,500

Ventilation in Stairwells

A venting skylight in a stairwell provides a powerful natural ventilation mechanism through the stack effect. Hot air naturally rises through the vertical stairwell shaft and exits through the open skylight at the top, drawing cooler fresh air into the home through open windows and doors at ground level. This passive ventilation can be remarkably effective in summer — a single solar-powered venting skylight at the top of a two-storey stairwell can cool the entire upper floor without air conditioning on mild summer days and evenings. For this reason, Toronto Skylight Installers often recommends a venting skylight rather than a fixed unit for stairwell installations, despite the higher cost — the ventilation benefit provides ongoing value beyond just illumination.

VELUX sun tunnel ceiling diffuser emitting bright natural light in Toronto home hallway

 

Cost Comparison: Hallway and Stairwell Skylight Options

Solution Product Cost Installation Total Installed Light Output
Sun Tunnel (14″ rigid) $300 – $500 $500 – $1,000 $800 – $1,500 Moderate (equivalent to 100W bulb on sunny day)
Fixed Skylight (21″ x 46″) $600 – $900 $1,200 – $2,000 $1,800 – $2,900 High (full daylight quality)
Solar Fresh Air (30″ x 46″) $1,600 – $2,000 $1,500 – $2,500 $3,100 – $4,500 High + ventilation

 

Installation Considerations for Hallways and Stairwells

Attic Access and Routing

The primary installation challenge for hallway skylights is attic routing. Many Toronto homes have HVAC ducts, plumbing stacks, electrical wiring, and structural members running through the attic space directly above hallways. During the consultation visit, Toronto Skylight Installers inspects the attic space above the target area to identify any obstructions and determine the optimal product choice and placement. In some cases, minor rerouting of flexible HVAC ductwork or electrical wiring is required to accommodate the skylight or sun tunnel — this additional work is included in our installation quotes so there are no surprises.

Stairwell Safety During Installation

Working above a stairwell requires specialized scaffolding and fall protection systems that differ from standard room installations. The open vertical drop and angled surfaces of a stairwell create access challenges that require experienced installers with proper safety equipment. Toronto Skylight Installers has extensive experience with stairwell installations and carries the scaffolding and safety systems needed for safe, efficient work in these configurations. Our stairwell installations are completed with the same one-day timeline as standard installations — we bring the right equipment from the start to avoid delays.

Light Shaft Design for Maximum Impact

When a skylight is installed above a hallway with attic space between the roof and ceiling, the design of the light shaft significantly affects how much light reaches the hallway below. A splayed (angled) light shaft — where the shaft walls flare outward from the skylight to the ceiling opening — distributes light more broadly than a straight shaft, increasing the illuminated area in the hallway. Painting the light shaft interior with bright white reflective paint further maximizes light delivery. Toronto Skylight Installers designs every light shaft for maximum light output, using calculated splay angles and high-reflectance interior finishes that deliver noticeably more illumination than a basic straight shaft installation.

Toronto Home Types: Best Hallway Skylight Solutions by Architecture

Home Type Common Hallway Issue Recommended Solution Notes
Century home (pre-1920) Long, narrow hallways with high ceilings Sun tunnel or small fixed skylight Heritage considerations may apply — check with local building dept
War-era bungalow (1940-1960) Central hallway with attic directly above Fixed or venting skylight (direct mount) Easiest installation — no light shaft needed if cathedral ceiling
Split-level (1960-1980) Multiple short hallways at different levels Multiple sun tunnels Flexible tube navigates complex attic geometries
Two-storey colonial (1970-1990) Upper hallway connecting bedrooms Sun tunnel or fixed skylight Attic directly above upper hallway — straightforward routing
Modern open-concept (2000+) Minimal hallways but dark stairwells Venting skylight at stairwell top Dual benefit: light and natural ventilation for the entire home

 

Energy Savings: Reducing Daytime Artificial Lighting

A hallway or stairwell skylight directly reduces your electricity consumption by eliminating the need for artificial lighting during daytime hours. Most Toronto hallways have the lights on for 8 to 12 hours per day, 365 days per year. Even a single sun tunnel can provide sufficient illumination to keep the hallway lights off during all daylight hours — saving approximately $50 to $100 per year in electricity costs depending on your current bulb type and electricity rate. Over the 20+ year lifespan of a VELUX product, these savings contribute meaningfully to the return on investment, particularly when multiple hallways and stairwells are fitted with skylights simultaneously.

 

What is the best skylight for a dark hallway?

For most Toronto hallways, a VELUX Sun Tunnel is the best choice — it delivers natural light through a compact reflective tube at a fraction of the cost of a full skylight. For wider hallways with direct roof access, a VELUX fixed skylight provides maximum light.

How much does a hallway skylight cost in Toronto?

A VELUX Sun Tunnel for a hallway costs $800 to $1,500 installed. A fixed skylight costs $1,800 to $2,900 installed. A solar-powered venting skylight costs $3,100 to $4,500 installed.

Can I install a skylight in a hallway with rooms above it?

Yes — with a sun tunnel. A VELUX Sun Tunnel routes natural light from the roof through a reflective tube that can navigate through attic space between upper-floor rooms, delivering light to the hallway ceiling below.

Will a stairwell skylight make my home too hot in summer?

No — the opposite. A venting stairwell skylight creates a natural stack effect, drawing hot air up and out of the house while pulling cooler air in at ground level. This passive ventilation actually cools your home without air conditioning.

How long does a hallway skylight installation take?

A sun tunnel installation takes 2-4 hours. A full skylight installation takes approximately one full day. request a free consultation for a detailed timeline based on your specific installation.

Do sun tunnels work on cloudy days?

Yes. The highly reflective interior surface captures and channels available daylight even on overcast days. Light output is reduced compared to direct sunlight but still provides meaningful natural illumination equivalent to a 50-75W bulb.

 

Brighten Every Corner of Your Home — Call Toronto Skylight Installers

Dark hallways and stairwells are not a permanent feature of your Toronto home — they are a solvable problem with a range of effective, affordable skylight solutions. From compact sun tunnels to dramatic stairwell skylights, Toronto Skylight Installers has the expertise to bring natural light to every part of your home.

Call us today at (416) 365-7557 or book your free hallway and stairwell lighting consultation online.

Toronto Skylight Installers is the GTA’s certified VELUX skylight dealer, providing professional skylight installation, replacement, and repair services across Toronto and the Greater Toronto Area.