Skylight Installation
Residential Skylights
Universal Roofs brings natural light into Toronto homes with professional skylight installation services using industry-leading Velux and Fakro units. Whether you want a single deck-mounted skylight in a dark bathroom, a pair of venting skylights for your master bedroom, or a Sun Tunnel for an interior hallway, our factory-trained installation team handles every step — from structural assessment and roof cutting to interior finishing and final water testing — delivering a leak-free, energy-efficient installation backed by both manufacturer and workmanship warranties.
How Universal Roofs Installs Skylights on Residential Properties Across Toronto
A properly installed skylight transforms any room with abundant natural daylight while adding measurable value to your home. Studies show skylights increase perceived room size by 30-40% and can reduce daytime artificial lighting costs significantly. However, skylight installation requires precise craftsmanship — incorrect flashing, improper sealing, or inadequate ice protection will result in chronic leaks that damage ceilings, walls, and insulation. Universal Roofs ensures every skylight installation meets the highest standards of waterproofing and energy performance. We also offer skylight replacement for homeowners with aging or leaking existing skylights.
Common Challenges With Residential Skylight Installation in Toronto
Skylight installation is one of the most technically demanding roofing operations. It requires cutting through your roof’s waterproof envelope, reinforcing the roof structure around the opening, and creating a completely sealed transition between the skylight frame and the surrounding shingle system. Toronto’s heavy snow loads (up to 1.5 kPa design load) create additional challenges — snow accumulation above skylights causes ice damming and hydrostatic pressure that tests every seal and flashing joint. Poorly installed skylights are the single most common source of residential roof leaks that our roof repair team encounters. Universal Roofs eliminates this risk entirely with factory-certified installation methods and extended ice and water shield protection.
What We Deliver With Every Residential Skylight Installation
Every skylight project we undertake is designed to achieve four critical outcomes: maximum natural daylight for the rooms below, superior energy efficiency with Low-E argon-filled glazing (U-factors as low as 0.27), a permanently leak-free installation with redundant waterproofing layers, and beautiful interior finishing that integrates seamlessly with your existing ceilings and walls. For venting models, we also deliver improved indoor air quality through natural ventilation.
Our Residential Skylight Installation Process and Systems
We install the complete range of Velux skylights to match every residential application. Velux FCM fixed skylights provide maximum light for rooms where ventilation isn’t needed. Velux VCM manual venting skylights add fresh air circulation for bathrooms and kitchens. Velux VSM solar-powered venting skylights offer automated operation with no wiring required. And Velux Sun Tunnel tubular skylights bring daylight into interior rooms, hallways, and closets where conventional skylights aren’t feasible. Every installation includes the manufacturer-specific EDL or EDW flashing kit, Grace Ice & Water Shield extended 36 inches beyond the skylight perimeter, and Roxul insulation around the light shaft. When homeowners are also planning a roof replacement, we strongly recommend combining both projects for significant cost savings and superior integration.
How Universal Roofs Approaches Residential Skylight Projects in Toronto
1. Assessment & Preparation
Our process begins with a thorough assessment of your roof structure and attic space. We verify rafter spacing (standard 16″ or 24″ on centre), check for electrical wiring, plumbing, and HVAC obstructions, measure roof pitch (minimum 15° for deck-mounted skylights), and evaluate ceiling type (cathedral, vaulted, or flat with attic space) to determine the optimal skylight size and placement for maximum daylight distribution.
2. Design & Planning
Our skylight specialist works with you to select the right unit based on room orientation, roof pitch, ceiling height, and your priorities — maximum light, ventilation, or both. We consider solar gain (south-facing skylights deliver the most light), potential glare, and the relationship between skylight size and room dimensions. Velux recommends skylight area equal to 5-15% of room floor area for optimal daylighting. We provide a detailed plan showing exact placement, interior shaft geometry, and expected light patterns. Visit our skylights service page to see our full range of options.
3. Materials Selection
We use Velux and Fakro skylights exclusively — both are industry-leading brands with proven performance in cold climates. Velux units feature triple-layer Low-E glazing with argon gas fill (U-factor 0.27-0.35), maintenance-free copper-cladded or aluminum-cladded exteriors, and factory-applied weatherstripping rated for -40°C. All flashing kits are engineered specifically for each skylight model and interlace with the surrounding shingle courses to create a waterproof assembly that performs for the full life of the roof.
4. Installation & Craftsmanship
Our crew carefully removes shingles in the installation zone, cuts the roof opening to exact specifications (typically 3/4″ larger than the skylight frame on all sides), installs temporary weather protection, frames the opening with doubled headers and trimmers where required by code, and installs the skylight unit following Velux’s step-by-step protocol. The flashing kit is integrated course-by-course with the surrounding shingles, and ice and water shield is applied in overlapping layers extending 36″ beyond the skylight on all sides.
5. Quality Assurance
Every skylight installation is flood-tested with a garden hose before we close up the interior. We verify flashing integrity at every joint, check that venting mechanisms operate smoothly, and confirm insulation coverage around the entire light shaft. Interior finishing includes framing the light shaft (straight, splayed, or angled depending on ceiling type), installing vapour barrier, insulation, and drywall, and applying trim to blend with your existing ceiling. We also provide proper attic ventilation guidance to prevent condensation around the skylight opening.
What You Can Expect From a Universal Roofs Skylight Installation
Our residential skylight installations deliver dramatic results: natural daylight increase of 3-5x compared to standard windows, improved ventilation (venting models exhaust warm, moist air from kitchens and bathrooms), measurable energy savings through reduced daytime lighting, enhanced home value (skylights consistently rank among the top ROI home improvements), and a completely waterproof installation backed by both the Velux 10-year product warranty and our own 10-year workmanship guarantee. See what our homeowner clients say on our reviews page.
Premium Materials We Use for Residential Skylight Installation
Velux FCM fixed deck-mounted skylights, Velux VCM manual venting skylights, Velux VSM solar-powered venting skylights, Velux TGF/TGR Sun Tunnel tubular skylights, Velux EDL stepped flashing kits (shingle roofs), Velux EDW flashing kits (tile/metal roofs), Grace Ice & Water Shield self-adhering membrane, Roxul ComfortBatt R-22 insulation, 6-mil polyethylene vapour barrier, moisture-resistant drywall, and custom-milled Douglas fir or primed MDF interior trim.
Serving Homeowners Across the Greater Toronto Area
Universal Roofs installs residential skylights throughout Toronto and the GTA, from older century homes in the city core to new construction in suburban developments. Our team is experienced with every type of residential roof geometry — hip roofs, gable roofs, complex multi-valley roofs, and cathedral ceiling applications. We handle all building permits and coordinate inspections with the City of Toronto and GTA municipalities.
Why Toronto Homeowners Choose Universal Roofs for Skylight Installation
Universal Roofs is one of the few roofing companies in the GTA that specializes in skylight installation. Most general roofing contractors subcontract skylight work or avoid it entirely due to the specialized skills required. Our dedicated skylight team handles complex installations — including multi-skylight configurations, vaulted ceiling applications, and skylight additions on existing roofs — that most competitors cannot perform.
Are your skylight installers factory-trained?
Yes. Our skylight installation team is Velux Certified, meaning they have completed factory training on proper installation techniques, flashing integration methods, and quality standards required for full manufacturer warranty coverage. This certification is renewed annually and verified through on-site quality audits. Learn more about our skylight services.
Can you install a skylight on any type of roof?
We install skylights on asphalt shingle roofs, metal roofs, and flat roofs. Each roof type requires a different flashing system and installation method. For flat roofs, we use curb-mounted skylights with custom-built curbs integrated into the existing membrane — this requires both flat roofing and skylight expertise, which our team provides.
Will a skylight cause my roof to leak?
Not when properly installed. Skylight leaks are almost always caused by three things: incorrect flashing technique, insufficient ice and water shield coverage, or inadequate sealing around the flashing-to-frame junction. Our installation method addresses all three with manufacturer-specific flashing kits, extended ice and water shield protection (36" beyond perimeter), and precision sealant application at every joint. If you have an existing leaking skylight, our skylight replacement service can solve the problem permanently.
How long does a residential skylight installation take?
A single skylight installation typically takes one full day for the exterior roof work (cutting, framing, flashing, shingling). Interior finishing — light shaft framing, insulation, vapour barrier, drywall, and trim — usually requires one to two additional days depending on ceiling height and shaft complexity. Multi-skylight projects are scheduled accordingly, typically 2-4 days total.
Universal Roofs provides professional residential skylight installation services across the Greater Toronto Area, including Velux and Fakro units with factory-certified flashing and workmanship warranty.
Common Questions About Residential Skylight Installation in Toronto
How much natural light will a skylight add to my room?
A properly sized skylight delivers 3 to 5 times more natural light than a vertical window of the same size, because it captures light from the entire sky dome rather than just one direction. Velux recommends skylights sized at 5-15% of floor area for optimal daylighting — a 2x4 foot skylight is ideal for a 100-150 sq ft room.
Are skylights energy efficient in Toronto winters?
Yes. The Velux skylights we install feature triple-layer Low-E glazing with argon gas fill, achieving U-values as low as 0.27 — comparable to the best double-pane windows. Solar-powered venting models also qualify for certain energy rebates. Combined with proper insulation around the light shaft and adequate attic ventilation, a well-installed skylight has minimal impact on heating costs.
Do I need a building permit for a skylight in Toronto?
In Toronto and most GTA municipalities, a building permit is required for skylight installation because it involves structural modifications to the roof. Universal Roofs handles the entire permit application, fee payment, and inspection coordination as part of every project — you don't need to deal with the municipality directly. Visit our FAQ page for more details.
Can I add skylights during a roof replacement?
Absolutely. Combining skylight installation with a roof replacement is the most cost-effective approach because the roof is already open and stripped to the deck. This eliminates the cost of cutting into and patching a finished roof, and ensures the skylight flashing is integrated perfectly with the new shingle system from the ground up. We strongly recommend this approach for homeowners planning both projects.
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- 416-732-2421
- info@universalroofs.ca
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