# Double-Pane Glass Replacement Toronto | Elite Glass Toronto URL: https://eliteglassrepairtoronto.ca/double-pane-glass-replacement/ RESIDENTIAL Emergency & Residential # Double-Pane Glass Replacement Toronto, ON | Low-E Argon IGU Replacement Last updated: October 10, 2026 7-14 business days | $380-$1,100. 2-hr 416 / 4-hr 905 emergency arrival, 24/7. NOTICE: We do NOT repair automotive glass or windshields. Residential, commercial and storefront glass only. Double-pane glass replacement for spec-aware Toronto homeowners and property managers who want the unit built right the first time. We build each insulated glass unit to your sash: 3/16/3 standard or 4/19/4 window glass, Low-E coated with Guardian ClimaGuard or Pilkington OptiTherm, Argon-filled, with a warm-edge spacer and butyl plus silicone seal. Tempered or laminated lites where code needs them. $380-$1,100 per unit. 24/7 Emergency Callout: (416) 555-0100 Get a written quote [#quote-form →](#quote-form) Call 24/7 Dispatch: (416) 555-0100 [tel:+14165550100 →](tel:+14165550100) ![Glazier measuring a double-pane unit's overall thickness with a digital caliper](/images/misc/glazier-measuring-the-overall-thickness-of-a-doubl.webp) Published price $380-$1,100 per unit, CAD, itemised in writing 4.9★ Google rating 2 hr 416 emergency arrival 2,400+ Panels installed since 2002 85% Claims direct-billed What's Included ## What Does Our Double-Pane Glass Replacement Service Include? 3/16/3 standard or 4/19/4 Low-E Argon units with Guardian warm-edge spacer and butyl + silicone perimeter. - 3/16/3 standard, 4/19/4 Low-E Argon - Guardian warm-edge spacer - Butyl + silicone perimeter - Sash depth matching - Spacer colour matched to frame Timeline 7-14 business days Warranty Written 2-year workmanship, on the invoice ![Cutaway sample of a 4/19/4 Low-E Argon unit showing spacer and seals](/images/features/cutaway-sample-of-a-4-19-4-low-e-argon-insulated-g.webp) Cutaway sample of a 4/19/4 Low-E Argon unit showing spacer and seals. Work by The Elite Glass Repair Toronto Crew. ## What Is Double-Pane Glass Replacement? Double-pane glass replacement is ordering and installing a new double-glazed sealed unit, built to the exact specification your window needs. It is the same work as window glass replacement [/window-glass-replacement/ →](/window-glass-replacement/) , but for buyers who care about the build: lite thickness, gap width, coating, gas, spacer and seal. Getting those details right is the difference between a unit that lasts 25 years and one that fogs in 8. It is also the difference between a unit that drops cleanly into your sash and one that has to be forced, which is how glass gets cracked on install day. ## Anatomy of a Double-Pane Unit | Component | What it does | What we use | | --- | --- | --- | | Outer lite | Faces the weather | 3mm, 4mm or 5mm float, tempered where required | | Gap | Insulating space | 12-20mm, Argon filled | | Low-E coating | Reflects heat back into the room | Guardian ClimaGuard or Pilkington OptiTherm | | Inner lite | Faces the room | Matched thickness, coating on surface 3 | | Spacer | Holds lites apart | Warm-edge, colour matched to frame | | Primary seal | Gas and moisture barrier | Butyl (polyisobutylene) | | Secondary seal | Structural bond | Silicone | ## The Two Builds We Use Most **3/16/3** is the standard residential build in the GTA. Two 3mm lites and a 16mm gap give 22mm overall, which fits most vinyl casements and sliders made since the 1990s. It is light, efficient and the most affordable. **4/19/4** uses thicker 4mm lites and a wider 19mm gap for 27mm overall. It is stiffer, quieter and handles larger openings without deflecting in the wind. Many newer windows and most picture windows over about 16 sq ft use it. We build other specs too, like 5/16/5 for very large units or a laminated outer lite for noise on busy streets. The rule is simple: the new unit matches the overall thickness your sash was designed for. ## Common Spec Mistakes These are the mistakes we see when other installers have been in before us: 1. **Wrong overall thickness.** The unit is forced into a pocket that is too tight, or rattles in one that is too loose. 2. **Low-E on the wrong surface.** The coating faces outward and the window loses heat instead of keeping it. 3. **No setting blocks.** The unit sits on the frame and the bottom edge carries all the weight. Seals fail early. 4. **Aluminium spacer on a new unit.** Cheap and cold, with frost along the bottom edge every winter. 5. **Plain glass where tempered is required.** A code problem near doors, floors and tubs. ## Why the Spec Is on the Quote Every quote we write lists, unit by unit, the size, the lite thicknesses, the gap, the coating and which surface it goes on, the gas, the spacer type and colour, and whether any lite is tempered. That way you, your contractor or your property manager can check exactly what is being built before anything is ordered. If you already know your spec, send it to us [/contact/ →](/contact/) with sizes and we will price it. If you do not, our Toronto glass repair [/ →](/) crew will measure and spec it for you. Written by The Elite Glass Repair Toronto Crew. Last updated October 10, 2026. Straight Answers ## What Actually Stops Toronto Homeowners From Booking Double-Pane Glass Replacement ### Q.Does the exact build really matter, or is a sealed unit a sealed unit? In our opinion it matters more than anything else. A unit that is 2mm too thick will not fit the sash, and one that is too thin rattles and leaks. We measure overall thickness and pocket depth on site. ### Q.Why pay for Low-E and Argon? Because the glass is most of the heat loss in a Toronto window. A Low-E Argon unit insulates roughly twice as well as plain clear double glazing, which you feel as warmer floors near the window in January. ### Q.Will a new unit match my other windows? We match spacer colour, glass thickness and coating. If the rest of your windows are old clear glass, the new Low-E unit may look very slightly different in certain light. We show you samples first. ### Q.Is triple-pane worth it instead? Sometimes. Triple-pane only works if the sash pocket is deep enough. On most existing windows, a well-built 4/19/4 Low-E Argon unit is the better fit and value. The 5-Step Precision Glazing Standard ## How Does Our Double-Pane Glass Replacement Process Work? Same five steps on every job, from a single pane to a curtain wall bay. Typical timeline: 7-14 business days. 1. 1 ### Step 1: Assessment & Safety Stabilization We check the sash and frame, identify the current build from the spacer stamp, and secure any broken unit with a temporary pane. 2. 2 ### Step 2: Measurement Laser measurement of glass size, micrometer check of each lite and the overall unit thickness, and a steel-rule check of sash pocket depth. 3. 3 ### Step 3: Glass Sourcing Others buy non-certified import units off a price list. We order dual-seal units from Guardian, Pilkington and Cardinal fabricators built to your exact spec. 4. 4 ### Step 4: Dry-Fit and Spec Match The crew dry-fits each unit, confirms Low-E is on the correct surface, checks edges and squareness, and matches spacer colour before glazing. 5. 5 ### Step 5: Install & Seal Unit set on new setting blocks with glazing tape or wet seal, beads refitted, glass cleaned and both warranties written on the invoice. Published CAD Pricing ## How Much Does Double-Pane Glass Replacement Cost in Toronto? Double-Pane Glass Replacement runs **$380-$1,100 per unit**. Prices are in CAD before HST, published here rather than gated behind a call. | Job | Price (CAD) | What drives the price | | --- | --- | --- | | 3/16/3 Low-E Argon, small (up to 8 sq ft) | $380-$520 | Standard residential build | | 4/19/4 Low-E Argon, medium (8-16 sq ft) | $520-$800 | Thicker lites for larger openings | | 4/19/4 Low-E Argon, large (16-26 sq ft) | $800-$1,100 | Two or three-person lift | | Tempered lite option | +$80-$220 | Safety glass where OBC Part 9 requires | | Black or bronze warm-edge spacer | No charge | Matched to frame colour | Prices in CAD before HST. Spec builds like 5/16/5 or laminated outer lites are quoted on request. Why The Crew ## Why Choose Elite Glass Repair Toronto for Double-Pane Glass Replacement? ### Built to your sash We measure every lite, the gap and the pocket depth, not just the width and height. ### Dual-seal units only Butyl primary, silicone secondary. The construction that lasts 20 years, not 8. ### Warm-edge spacer Less edge condensation and frost, with spacer colour matched to your frame. ### 10-year Guardian warranty Manufacturer seal warranty on every Guardian unit, plus our 2-year workmanship warranty. ### Spec on the quote Every quote lists lite thickness, gap, coating, gas and spacer by name. ### Batch pricing Whole-house orders are quoted unit by unit so you can phase the work. Recent Work ## Our Double-Pane Glass Replacement Work Across the GTA Crew photos from recent jobs. Click any photo to enlarge. Full project gallery [/gallery/ →](/gallery/) Lawrence Park wood casement Whole-house batch, Bayview Village Sash depth check before ordering Kitchen window, after Client Reviews ## What GTA Clients Say About Our Double-Pane Glass Replacement 4.9★ average Google rating. Each review names the job, the neighbourhood and what it cost. > "Spec-matched 1998 Pilkington coating in 24-hr condo install. PM approved first walkthrough." Arjun S., Harbourfront $1,850 Foggy IGU > "Low-iron clarity is noticeable. Dorma hinges feel like a bank vault." Priya S., Rosedale $2,850 Frameless Starphire Shower > "Boarded 11pm, permanent Tuesday, Intact direct-billed. Zero out of pocket." Sarah K., Yorkville $4,200 Storefront After Break-In Ratings shown from our Google profile average of 4.9 stars. Toronto Buyers Ask ## Double-Pane Glass Replacement FAQs ### What does 3/16/3 or 4/19/4 mean on a double-pane unit? It is lite/gap/lite notation in millimetres. A 3/16/3 unit has two 3mm lites of glass with a 16mm gap between them, for an overall thickness of 22mm. A 4/19/4 unit has two 4mm lites and a 19mm gap, for 27mm overall. Thicker lites are stronger and quieter and are used for larger openings, while the gap width affects insulating value. Your sash is built for a specific overall thickness, so the replacement unit has to match it within a millimetre or so. That is why we measure each lite and the overall unit with a micrometer before ordering, and why ordering by width and height alone is a common DIY mistake. If you are not sure what you have, the stamp on the spacer usually tells us. ### How much does double-pane glass replacement cost? Double-pane units cost $380-$1,100 each in Toronto, in CAD before HST. A small 3/16/3 Low-E Argon unit up to about 8 sq ft runs $380-$520. A medium 4/19/4 unit of 8-16 sq ft is usually $520-$800, and a large 4/19/4 unit up to 26 sq ft runs $800-$1,100. Tempered lites add $80-$220. Spacer colour matching is included. ### Is Argon gas worth it? Yes. Argon is denser than air, so it slows heat moving across the gap. Combined with a Low-E coating it roughly doubles the insulating value of a double-pane unit compared with clear glass and air. It is standard on every unit we build. ### What is a warm-edge spacer? The spacer is the strip that holds the two lites apart around the edge. Old aluminium spacers conduct cold straight to the edge of the glass, which is why old windows frost and drip along the bottom. A warm-edge spacer uses low-conductivity materials, so the edge stays warmer and condensation drops. ### Which surface should the Low-E coating be on? In Toronto's heating-dominated climate, the Low-E coating usually goes on surface 3, the inner lite facing the gap, to keep heat in. For west-facing rooms that overheat, a solar control coating on surface 2 may be better. We spec this on the quote. ### How long do double-pane units last? A well-made dual-seal unit with a warm-edge spacer typically lasts 20-25 years. Units with a single seal or installed without setting blocks often fail in 10-15. ### Can you upgrade single-pane windows to double-pane? Only if the sash pocket is deep enough to take a sealed unit. Many older wood windows are not. We check on site and tell you honestly. For heritage sash, a storm window is often the better option. ### How long does a double-pane replacement take? 7-14 business days for the units to be made, then 30-90 minutes per window to install. The old units stay in until then. ### Do you replace double-pane glass in car windows? No. We do residential, commercial and storefront glass only. We do not repair or replace automotive glass or windshields. Still have a question? The crew answers the phone 24/7 and replies to messages within the day. Call (416) 555-0100 [tel:+14165550100 →](tel:+14165550100) Send a Message [/contact/ →](/contact/) Related Services ## Related Glass Services Jobs that often come up alongside double-pane glass replacement. ![Glazing crew lifting a new Low-E sealed unit into an existing vinyl frame on a High Park house](/images/misc/glazing-crew-lifting-a-new-low-e-argon-sealed-glas.webp) RESIDENTIAL [/window-glass-replacement/ →](/window-glass-replacement/) ### Window Glass Replacement Toronto [/window-glass-replacement/ →](/window-glass-replacement/) Window glass replacement for homeowners and condo PMs who want new insulated glass without tearing out the frame. We spec Pilkington OptiTherm, Guardian ClimaGuard IS-20 and Vitro Solarban 70XL Low-E with Argon fill and warm-edge spacers, measured to the sash in High Park, the Beaches and Davisville condos. Includes In Scope - Low-E Argon warm-edge sealed unit - Glass-only swap into existing sash - Same-day stock tempered option 7-14 business days | $320-$1,250 Get a written quote [/contact/ →](/contact/) [/window-glass-replacement/ →](/window-glass-replacement/) ![Two glaziers installing a sealed glass unit in a Harbourfront condo window wall](/images/misc/two-glaziers-installing-a-factory-sealed-insulated.webp) SPECIALTY [/insulated-glass-unit-replacement/ →](/insulated-glass-unit-replacement/) ### Insulated Glass Unit (IGU) Replacement Toronto [/insulated-glass-unit-replacement/ →](/insulated-glass-unit-replacement/) Insulated glass unit replacement for condo PMs, building owners and commercial facilities managers who need factory-sealed units matched to an old spec. We order from Cardinal, Pilkington and Guardian with warm-edge spacers, Argon or Krypton fill and Low-E on surface 2 or 3, matched to towers in Harbourfront, Yonge-Sheppard and Square One. Includes In Scope - Factory-sealed Cardinal, Pilkington or Guardian - Low-E surface 2 or 3, Argon or Krypton - Original spec and tint match 7-14 business days | $380-$1,500 Get a written quote [/contact/ →](/contact/) [/insulated-glass-unit-replacement/ →](/insulated-glass-unit-replacement/) ![Glazier measuring a foggy double-pane window in a Willowdale living room](/images/misc/foggy-double-pane-window-with-milky-condensation-b.webp) RESIDENTIAL [/foggy-window-repair/ →](/foggy-window-repair/) ### Foggy Window Repair Toronto [/foggy-window-repair/ →](/foggy-window-repair/) Foggy window repair for homeowners and condo boards staring at condensation trapped between the panes. A failed perimeter seal has let the Argon out and moisture in, so we order a matched replacement unit from Pilkington or Cardinal IGU and set it into your existing sash in Willowdale, Don Mills and Thornhill homes. Includes In Scope - Matched Pilkington or Cardinal unit - Existing sash kept, no trim damage - Sill and frame moisture check 7-14 business days | $350-$680 Get a written quote [/contact/ →](/contact/) [/foggy-window-repair/ →](/foggy-window-repair/) ![Glazing crew carrying a tempered patio door unit across a Port Credit deck](/images/misc/three-person-glazing-crew-carrying-a-tall-tempered.webp) DOORS & SHOWERS [/patio-door-glass-replacement/ →](/patio-door-glass-replacement/) ### Patio Door Glass Replacement Toronto [/patio-door-glass-replacement/ →](/patio-door-glass-replacement/) Patio door glass replacement for homeowners with a shattered or foggy 68-96 inch panel. We build double-pane sealed units with Guardian ClimaGuard or Pilkington OptiTherm Low-E and Argon fill, tempered both sides per CSA A440, and fit them to the existing slider in Port Credit, Lorne Park and Kleinburg backyards. Includes In Scope - Tempered Low-E Argon sealed unit - Existing frame and track kept - Temporary panel while unit is built 10-14 business days | $650-$2,400 Get a written quote [/contact/ →](/contact/) [/patio-door-glass-replacement/ →](/patio-door-glass-replacement/) Written Quote ## Get an Itemised Double-Pane Glass Replacement Quote Send a photo and the opening size if you have them. The crew replies with glass spec, price in CAD and lead time in writing. - 2-hr 416 / 4-hr 905 emergency arrival, 24/7 - Intact, Aviva, Economical and Co-operators direct-billed - WSIB cleared, $5M CGL, CGMA member ## Request an Itemized Double-Pane Glass Replacement Quote Tell the crew what broke. We reply with an itemised CAD quote on letterhead, usually within a few hours. For an active emergency, call 24/7. Thanks. We got your message. The crew will call you back within 24 hours. For an active emergency call (416) 555-0100 now. ![Glazing crew boarding up a broken storefront window at night in Toronto](/images/misc/two-person-glazing-crew-at-night-fitting-15mm-osb-.webp) 24/7 Emergency Dispatch ## Need double-pane glass replacement in the GTA? Call the crew 24/7. 2-hour arrival across the 416, 4-hour across the 905. Board-up tonight with 15mm OSB, permanent glass within 72 hours, and insurance direct-billed to Intact, Aviva, Economical and Co-operators. Call 24/7 Dispatch: (416) 555-0100 [tel:+14165550100 →](tel:+14165550100) Get a written quote [/contact/ →](/contact/) - Written 2-year warranty - Published CAD prices - WSIB + $5M CGL We do NOT repair automotive glass or windshields. Residential, commercial and storefront glass only.