# Commercial Skylight Replacement Toronto | $6K-$30K URL: https://skylightinstallationtoronto.ca/commercial-skylight-replacement/ Phased Replacement · Re-Roof Sequencing · $5M CGL # Commercial Skylight Replacement in Toronto, ON | Offices, Libraries, Retail & Industrial Roofs Last updated: October 4, 2026 · By The Skylight Installation Toronto Crew Skylight Installation Toronto [/ →](/) handles commercial skylight replacement across offices, libraries, retail plazas, atria and industrial roofs in Toronto and the GTA. We stage phased removal of failing acrylic domes, fogged glass units and leaking atrium panels, then tie in new Velux CFP, Velux CVP, Fakro DMG or Fakro DXW units with fresh membrane seams, fall-protection screens and interior containment so the business stays open through the swap. Projects run from a single same-size swap at $6,000 to a $65,000 Vaughan Metropolitan Centre office-tower atrium, and we often time the work with a scheduled re-roof to share mobilization costs with the roofer. Every unit is backed by WSIB-covered crews, $5M CGL, OBC 9.7 compliance, Velux 10/20-year or Fakro 10-year product warranty passthrough, and a lifetime leak-free flashing warranty on our install. - 20 Yrs GTA - Velux Certified - Fakro Certified - OBC 9.7 Compliant - $5M Liability - Lifetime Flashing Warranty Book a Free On-Site Assessment [/contact/ →](/contact/) (647) 254-2699 [tel:+16472542699 →](tel:+16472542699) $6,000 to $30,000+ per project CAD, published pricing ![Commercial crew replacing old skylight panels on a Danforth library roof](/images/misc/commercial-crew-replacing-old-wired-glass-skylight.webp) Active GTA Site Crew OBC 9.7 Certified - 5-Star Satisfaction - Top-Rated Toronto Skylight Installer - Velux Certified Installer - Fakro Certified - OBC 9.7 & 9.26 Compliant - $5M Liability + Full WSIB - Lifetime Leak-Free Flashing Warranty - 24/7 Emergency Leak Response Why GTA Owners Trust Us ## Why Toronto Trusts Skylight Installation Toronto for Commercial Replacement 2,000+ skylights installed across the GTA in 20 years, with in-house WSIB crews, certified Velux and Fakro installs and pricing you can see before anyone climbs a ladder. ### 20 Years of Skylight Installation Two decades installing Velux and Fakro skylights across the GTA, from our first VCI certification in 2004 to three install trucks on the road today. ### Velux + Fakro Certified Installer Both certifications verified every year. Direct dealer accounts, factory warranty passthrough and model-specific install protocols. ### OBC 9.7 + CSA A440 Compliant Every install follows Ontario Building Code 9.7 fenestration, 9.26 roofing and CSA A440. Permit coordination is part of the job. ### Full Crew, Zero Subcontracting Every installer is an in-house, WSIB-covered employee. No rental crews and no subcontractors on your roof. ### Written Workmanship Warranty Lifetime leak-free warranty on install flashing, plus Velux 10/20-year and Fakro 10-year product warranty passthrough. ### Transparent CAD Pricing Install, replacement, repair and accessory rates are published. Every quote itemizes unit, labour, permit, flashing and disposal. ![Cracked old polycarbonate dome beside a new clear commercial skylight with screen](/images/misc/old-cracked-yellowed-polycarbonate-warehouse-dome-.webp) Cracked old polycarbonate dome beside a new clear commercial skylight with screen ## What Commercial Skylight Replacement Involves Commercial skylights fail at scale. When one dome cracks, the other eleven installed at the same time are usually not far behind. Replacement is about doing them in a sensible order, keeping the building operating and making sure the new units are tied into the roof properly. We start with a condition survey of every unit, then plan phases around your tenants and any upcoming re-roof. Each unit is removed, the curb is checked, the membrane is tied back in and a fall-protection screen goes on the same day. ## The 5 Commercial Skylight Problems We Replace Most 1. **Cracked and yellowed polycarbonate domes** on warehouses and retail. 2. **Wired glass** on older industrial roofs. 3. **Failed atrium glazing** with fogged or leaking sealed units. 4. **Rotted wood curbs** under decades of patches. 5. **Missing fall protection** on units installed before current rules. ## Residential-Scale Replacement in Commercial Buildings ### Condo Amenity Rooms Board-managed replacements with notices and COI. Our King West condo retrofit covered 12 units in 2024 with zero tenant complaints, and we send the boards insurance rider and WSIB clearance letters before mobilization. Per-unit amenity replacements typically run $6,000 to $12,000 with screens included. ### Apartment Corridors Top-floor corridors in rental buildings brightened again. Apartment corridors over shops along Queen, the Danforth and Roncesvalles get the same tired yellowing polycarbonate treatment, and a single-day replacement per opening keeps tenants moving. We post notices in the stairwell a week ahead and carry full WSIB clearance for the landlord. ### Seniors’ Residences Quiet scheduling and laminated glass. Retirement residences run on a different clock than warehouses, so we keep cutting outside mealtimes and activity hours and use laminated glass to keep residents safe. In our opinion, common-room retrofits are some of the most satisfying jobs we do, the difference in daylight is immediate. ### Mixed-Use Main Street Buildings Apartments over shops along Queen, the Danforth and Roncesvalles. These Main Street buildings often have original 1980s or 1990s polycarbonate domes that have yellowed and cracked, and a same-day swap to a Velux curb-mount glass unit with a screen pays for itself in tenant satisfaction. We coordinate access with the retail tenants on the ground floor so the storefront keeps trading as planned. ## Commercial Replacement by Building Type ### Offices and Towers Our Vaughan Metropolitan Centre office tower replacement ran $65,000 over one week. Office tower work is almost always about keeping the lobby and elevators open while we work, so we phase panels around tenant hours and screen every opening the same day. The VMC project replaced 14 panels with new curb-mount glass units and upgraded fall-protection screens to current MOL standard. ### Libraries and Public Buildings City of Toronto Public Library branch on the Danforth, phased around public hours in 2024. Public buildings need clean COI, WSIB clearance and method statements, which we provide as standard so facility managers can pass them up the chain. The Danforth branch got new laminated glass units over the reading room and the lobby. ### Retail and Showrooms Single-day swaps before opening. Retail storefront skylights are usually one curb-mount unit over the main floor, replaced in a single day for $8,000 to $18,000. We schedule the cut, frame and glass set before the store opens so the floor is fully dressed by the time the first customer walks in. ### Warehouses and Industrial Bays replaced in phases with screens. Warehouse racking aisles stay in use while we swap one bay at a time, with fall-protection screens fitted the same day the opening is cut. Per bay pricing of $6,000 to $12,000 is typical, and we coordinate the tie-in to your roofer of record so the membrane warranty stays intact. ### Restaurants Atrium replacements worked around service. Restaurant dining-room atria get laminated interior glass, sealed interior enclosures during the cut and after-hours scheduling so lunch and dinner service are unaffected. Our Oakville Lakeshore restaurant atrium was replaced over three days at $28,500, open for dinner as usual. ### Schools Summer or holiday scheduling where possible. School skylight replacement is almost always easier during the July-August break or the winter holiday, and we phase around exam periods when a summer window is not available. Laminated glass over occupied classrooms is non-negotiable for us. ## Specialty Commercial Replacement ### Re-Roof Sequencing Units swapped while the roofer is on site so the tie-in is done once. Coordinating with your roofer of record saves a second mobilization and avoids cutting into a brand new membrane a year down the line. Sharing the tie-in work is the single biggest cost saver in any re-roof and skylight project, and we plan the sequence together with your roofer. ### Polycarbonate to Glass Clearer, longer-lasting glazing. A polycarbonate dome starts to yellow within ten years and crack within twenty, while a laminated glass curb-mount unit stays clear for thirty years or more. The swap usually pays for itself in lighting quality alone. ### Hail-Resistant Glazing For exposed roofs and impact risk. Hail-prone roofs in north Markham, north Vaughan and exposed Burlington industrial sites benefit from laminated or tempered hail-rated glazing. We size the glass and the screen package to the actual exposure on your roof. ### Smoke Vent Replacement Like-for-like ULC-listed units where required. Smoke-vent replacements have to keep the original ULC-S527 listing intact or the fire plan is no longer compliant, so we match the listing rather than substituting a cheaper unit. The fire panel tie-in is tested after install before sign-off. ## Materials | Item | Options | | --- | --- | | Units | Velux Dynamic Dome, curb-mount glass, custom atrium panels | | Glazing | Laminated, tempered Low-E, polycarbonate | | Tie-in | TPO, EPDM, SBS to the manufacturer’s detail | | Safety | MOL-standard fall-protection screens | ## Our Commercial Replacement Expertise We know that the hard part of commercial work is not the skylight, it is the logistics. Who holds the roof warranty, when tenants arrive, where the crane can stand, what the board needs to see. We sort those out before anyone climbs a ladder. ## What Actually Stops Managers From Replacing Skylights ### “Budget is already committed this year.” In our opinion, a condition survey helps here. We tell you which units are urgent and which can wait for next year’s capital plan, which is what facility managers actually want for a multi-year budget cycle. The written report is useful evidence at the next capital planning meeting. ### “Tenants will complain.” Phasing and after-hours cutting keep complaints rare. Our King West retrofit had zero tenant complaints over a 12-unit project, and that has been the rule rather than the exception across our commercial work in Toronto. Honestly, a tidy phase plan and a friendly foreman on the ground does most of the work. ### “We just re-roofed.” We tie into new membranes to the roofer’s details without voiding warranties. In our opinion, the roofer of record almost always has the cleaner tie-in detail, so we coordinate with them before any cutting starts. That single conversation protects your brand new roof for its full 20-year rated life. ### “Paperwork is a nightmare.” COI, WSIB letters, method statements and closeout docs, all standard. Our founders checklist insists on clearance letters being in the property managers inbox before mobilization, never after, so the paperwork never slows your project. Itemized closeout with photos and product data is what your auditors want to see in the file. ## Commercial Replacement Timeline ### Survey (Week 1) Every unit inspected and reported. We check glazing, curbs, membrane and tie-in condition, and tag each unit replace, repair or monitor. That written condition report is the document your capital planning meeting actually needs. ### Proposal and Approvals (Weeks 2 to 4) Phasing plan, permits if needed. We list the permit as its own line at actual cost, since some installers over-charge for permits thinking managers wont check other quotes. Property managers always check, and so should you. ### Phased Replacement One day to three weeks depending on unit count. Every opening is screened the same day it is cut, tied into the membrane and signed off by the crew lead against our founders commercial checklist. Our VMC tower replacement ran one week for 14 panels with no tenant interruption. ### Closeout Photos, warranties, documentation. We hand over a full closeout package so your auditors and your insurers can see exactly what was installed, where and how it ties into the membrane. That same package is what we use on warranty calls decades later. ## Commercial Replacement Cost in Toronto: What Drives the Price ### Number of Units Larger batches lower the per-unit cost. A warehouse with 12 failing domes sees a noticeably lower per-bay cost than a single-unit swap, because we mobilize once, share fall-protection setup, and run crews through the same checklist twelve times. ### Unit Type Domes cost less than glass curb-mount or atrium panels. A Velux Dynamic Dome or polycarbonate retrofit runs $6,000 to $12,000 per unit, while a curb-mount glass replacement lands at $8,000 to $18,000 and atrium panels climb above $30,000. Glass lasts longer and stays clearer, so the price difference pays back on most roofs. ### Curb Condition Rotted curbs need rebuilding. If the original wood curb has gone soft from decades of moisture, we rebuild it with a new pressure-treated or steel curb before the new unit goes on, and that rebuild is itemized so you can see the cost. Skipping curb work is the most common cause of a leak two years after a swap. ### Membrane Type SBS tie-ins take more time than TPO. SBS torch-down needs a hot-work permit and a roofer who does that work daily, while TPO and EPDM are mechanically fastened or adhered. The membrane type is a real line item on the proposal and worth checking against your existing roof. ### Screens Required on commercial roofs. MOL working-at-heights rules mean every commercial opening needs a screen the same day it is cut, and many older roofs need screens added even where they did not exist before. We include screens as standard, not as an upgrade. ### Scheduling After-hours and weekend premiums are itemized. Restaurant and retail work almost always runs after hours or before opening, and we write that premium into the proposal so the GC or owner is not surprised by a separate invoice at the end. A weekend callout for one retail unit typically adds $300 to $800 to the total. ## Commercial Replacement vs Installation vs Repair: Which Service You Need Failing units in place: replacement. New openings: commercial installation [/commercial-skylight-installation/ →](/commercial-skylight-installation/) . One leaking unit on a newer roof: leak repair [/skylight-leak-repair/ →](/skylight-leak-repair/) . ## Fixed, Venting or Solar: Choosing Your Skylight Type Most commercial replacements are fixed units or domes. Venting and smoke-vent units are specified where code or comfort requires. Smart and solar controls fit offices and clinics. ## Commercial Skylight Replacement Timeline in Toronto: What to Expect Week-by-Week Survey in week one, approvals in weeks two to four, phased work on site for one day to three weeks, closeout within a week. ## Why Facility Managers Call Us Back Clean phasing, proper tie-ins and documents your auditors will like. We have been doing this across Toronto, Vaughan, Markham and the wider GTA for over twenty years, certified for both Velux and Fakro since 2004 and more than 2,000 installs in. Every crew is in-house and WSIB-covered, no subcontractors on your roof, and every quote is itemized with the permit on its own line. OBC 9.7 for fenestration, OBC 9.26 for roofing, CSA A440 glass and a written lifetime leak-free flashing warranty are the things you are actually paying for. We specd it all out up front. Field-Tested Workflow ## How Our Commercial Replacement Process Works, 5 Steps The same five steps on every job, whether it is one skylight over a Leaside bathroom or a warehouse full of bays. 1. 1 ### Condition Survey We inspect every unit, note glazing, curbs, membrane and screens, and give you a condition report with replace, repair or monitor for each. 2. 2 ### Phasing Proposal Itemized proposal with a phasing plan around tenants, hours and any planned re-roof. 3. 3 ### Permits at Actual Cost Permits only where scope requires, listed separately. Some installers over-charge for permits thinking managers wont check other quotes. 4. 4 ### Phased Swap + QA Units removed and replaced one phase at a time, screened and tied in the same day, checked against our founder's commercial checklist. 5. 5 ### Closeout Docs Photos, warranties, product data and condition notes for your files. Then enjoy a roof you do not have to worry about. No Hidden Fees ## Commercial Replacement Pricing in Toronto (CAD) Commercial replacement includes removal, disposal, membrane tie-in and screens. Re-roof coordination and after-hours premiums are itemized. Most Booked Single commercial unit $6,000 to $12,000 CAD, installed Dome or curb-mount glass with screen Book Free Assessment [/contact/ →](/contact/) Multi-unit replacement $12,000 to $30,000 CAD, installed Phased around occupancy Book Free Assessment [/contact/ →](/contact/) Atrium / tower replacement $30,000+ CAD, installed VMC tower project: $65,000 Book Free Assessment [/contact/ →](/contact/) Every quote itemizes unit cost, install labour, permit, flashing and disposal. The on-site assessment is free anywhere in the GTA. See the full price list [/pricing/ →](/pricing/) Recent Work ## Our Commercial Replacement Work Across the GTA Real roofs, real flashing details. Click any photo to enlarge. Customer Results ## What GTA Clients Say About Our Commercial Replacement 5-Star Satisfaction · Top-Rated Toronto Skylight Installer > "Eight cracked domes replaced with glass units and screens, $27,600 CAD. Phased over two weekends, no disruption to our tenants." APAlan P.Facilities, Scarborough Business Park > "Our 1990s storefront skylight was replaced in a day for $9,400 CAD. Opened at noon as usual." KWKaren W.Retail Owner, Queen Street East > "They coordinated with our roofer during the re-roof and saved us a second mobilization. Clean paperwork, every unit photographed." JLJoseph L.Property Manager, Etobicoke Service Areas ## Commercial Replacement Across Toronto and 9 GTA Cities Same crews, same published pricing and the same lifetime flashing warranty from Rosedale to Milton. Pick your city for local permits, neighbourhoods and roof types. View All Service Areas [/service-areas/ →](/service-areas/) - Skylight Installation Toronto Downtown, Rosedale, Yorkville [/service-areas/toronto/ →](/service-areas/toronto/) - Skylight Installation Mississauga Lorne Park, Erin Mills, Port Credit [/service-areas/mississauga/ →](/service-areas/mississauga/) - Skylight Installation Vaughan Kleinburg, Woodbridge, Thornhill [/service-areas/vaughan/ →](/service-areas/vaughan/) - Skylight Installation Markham Unionville, Cornell, Angus Glen [/service-areas/markham/ →](/service-areas/markham/) - Skylight Installation Brampton Springdale, Bramalea, Mount Pleasant [/service-areas/brampton/ →](/service-areas/brampton/) - Skylight Installation Oakville Bronte, Downtown Oakville, Glen Abbey [/service-areas/oakville/ →](/service-areas/oakville/) - Skylight Installation Burlington Downtown Burlington, Aldershot, Alton Village [/service-areas/burlington/ →](/service-areas/burlington/) - Skylight Installation Richmond Hill Oak Ridges, Jefferson, Mill Pond [/service-areas/richmond-hill/ →](/service-areas/richmond-hill/) - Skylight Installation Pickering Pickering Village, Bay Ridges, West Shore [/service-areas/pickering/ →](/service-areas/pickering/) - Skylight Installation Milton Milton Industrial Park, Bronte Meadows, Harrison [/service-areas/milton/ →](/service-areas/milton/) Related Services ## Related Skylight Services ![Office tower lobby atrium with fourteen new glass skylight panels in Vaughan](/images/misc/commercial-office-lobby-atrium-with-fourteen-new-g.webp) From $6,500 ### Commercial Skylight Installation Toronto Skylight Installation Toronto handles commercial skylight installation across office towers, retail plazas, warehouses, restaurants, schools and medical buildings in Toronto and the GTA. We design, frame, flash and tie into TPO, EPDM, SBS and PVC roof systems without voiding the building warranty or shutting down the tenants below, and we coordinate crane lifts, after-hours access and permit filing so the install does not stop the business from running. Commercial jobs run from a single office daylight unit at $8,000 to a 14-panel lobby atrium at $65,000, with Velux CFP, Velux CVP, Fakro DXW walkable, Fakro DMC smoke-vent and custom-fabricated units on offer depending on fire-rating and daylight needs. Every install carries WSIB, $5M CGL, OBC 9.7 fenestration compliance, OBC 9.26 flashing to Grace Ice & Water Shield standard, and a written workmanship warranty. Explore Commercial Installation [Commercial Skylight Installation Toronto →](/commercial-skylight-installation/) ![Velux flat glass skylight on a raised curb atop a white TPO roof in Toronto](/images/misc/velux-flat-glass-skylight-on-raised-insulated-curb.webp) From $3,500 ### Flat Roof Skylight Installation Toronto Skylight Installation Toronto installs flat-roof skylights on condo terraces, laneway suites, rear additions, commercial roofs and modern residential cubes across Toronto and the GTA. We build raised insulated curbs on low-slope roofs, flash into TPO, EPDM, SBS and modified bitumen membranes, and set Velux CFP flat glass, Velux CVP curb-mount or Fakro DXW walkable units so ponding water, drifting snow and freeze-thaw never reach the opening. Flat-roof projects run from $3,500 for a single CFP install on a residential addition up to $45,000 for a walkable terrace or multi-panel commercial array. Every job carries WSIB-covered crews, $5M CGL, OBC 9.7 fenestration compliance, laminated or tempered glass to code, and a written workmanship warranty on the curb flashing, membrane tie-in and glazing seal. Explore Flat Roof Skylights [Flat Roof Skylight Installation Toronto →](/flat-roof-skylight-installation/) ![Glaziers lowering a new Low-E glass unit into an existing skylight frame](/images/misc/two-glaziers-lowering-new-laminated-low-e-glass-un.webp) From $450 ### Skylight Glass Replacement Toronto Skylight Installation Toronto replaces cracked, fogged, failed-seal and cloudy skylight glass units across Toronto, Mississauga, Vaughan, Markham, Oakville and the rest of the GTA. We measure the existing frame, order a matching Low-E, laminated or tempered insulated glass unit from Velux Canada, Fakro Canada or a Toronto glass fabricator, then swap the pane out of the existing curb and gasket in a single visit. Glass-only replacement runs $450 to $1,500 per unit depending on size, glazing type and whether argon-fill or Low-E coating is specified. Most swaps finish in half a day with no drywall or shaft disturbance, and every pane is backed by Velux 10-year or Fakro 10-year glass warranty passthrough plus a written workmanship warranty on our seal and gasket work. Explore Glass Replacement [Skylight Glass Replacement Toronto →](/skylight-glass-replacement/) ![](/images/misc/two-person-skylight-crew-on-a-toronto-residential-.webp) Free On-Site Assessment ## Ready to Book Commercial Replacement? Tell us about the room, the roof and your timeline. A crew lead visits, checks the roof and framing, recommends the right Velux or Fakro model and sends a written CAD quote within two business days. - Itemized CAD quote: unit, labour, permit, flashing, disposal - Lifetime leak-free flashing warranty - In-house WSIB crew, no subcontractors Call (647) 254-2699 [tel:+16472542699 →](tel:+16472542699) See Published Pricing [/pricing/ →](/pricing/) Book a Free On-Site Assessment Free roof condition check + model recommendation across the GTA. Thanks, we got your message. A crew lead will call you back within one business day. For leaks, call (647) 254-2699 now. Straight Answers ## Commercial Replacement FAQ: 12 Questions Toronto Clients Ask ### How much does commercial skylight replacement cost in Toronto? Commercial replacement runs $6,000 to $30,000 CAD for most projects, with larger atria and towers above that. Our Vaughan Metropolitan Centre tower replacement was $65,000. Quotes itemize units, removal, tie-in, screens and any after-hours work. ### Should we replace skylights during a re-roof? Yes, if the units are more than 15 to 20 years old. Sharing mobilization and doing the tie-in once saves money and avoids cutting into a brand new membrane later. ### Can you replace skylights while the building is open? Yes. We phase units, schedule noisy work outside business hours and protect the interior below with sealed enclosures. ### Do you replace polycarbonate domes with glass? Often. Glass lasts longer and stays clear. Polycarbonate still makes sense for hail-prone or impact-risk roofs, and we will recommend whichever fits. ### Will you add fall-protection screens? Yes. Screens to MOL standard are included on commercial replacements, and many older roofs need them added anyway. ### Do you work with our roofer of record? Yes. We coordinate tie-in details with your roofer so the membrane warranty stays intact. ### How long does a commercial replacement take? Single units take a day. Multi-unit projects run over several phases, typically one to three weeks. Our VMC tower project took a week. ### What insurance do you carry? $5M commercial general liability, $2M property damage and full WSIB, with COI and clearance letters supplied before mobilization. ### Can you give us a condition report first? Yes. We survey every unit and give you a written replace, repair or monitor recommendation, useful for capital planning. ### Do you handle public buildings? Yes. Our City of Toronto Public Library branch replacement on the Danforth (2024) was phased around public hours. ### What about sound and hail resistance? Laminated glass improves STC ratings for quieter interiors, and we can specify hail-resistant glazing on exposed roofs. ### What warranty is included? Lifetime leak-free warranty on our flashing and tie-in work, plus the manufacturer's product warranty. Still have a question? Talk to a crew lead, not a call centre. Call (647) 254-2699 [tel:+16472542699 →](tel:+16472542699) Send a Message [/contact/ →](/contact/)