New Construction Windows
Do you have a new house under construction or addition in Toronto or in the GTA? New construction windows do not resemble the normal replacement windows. The fact that the wall studs are completely open in new construction gives the advantage of installing the windows directly into the rough frame opening; this provides a more permanent and tight fit.
Milano Windows and Doors manufactures and installs new construction windows of high quality in Toronto and the GTA — the same team behind our trusted window replacement services. Moreover, all our windows are 100 percent Canadian Made, Energy Star approved and come with a lifetime transferable warranty.
Call today to book your free new construction window consultation.
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What Are New Construction Windows?
New construction windows are different in one aspect compared to retrofit or replacement windows. They have a nailing fin – a planar flange, wrapping round the edge of the frame. This fin is directly attached to the wall studs and then later exterior cladding, siding or brick is put on. Consequently, the window is completely incorporated in the building structure.
New Construction Window Styles We Supply & Install
Milano provides and installs all major modes of window designs in new construction projects within the GTA. Due to the architectural needs that are exclusive to each new construct, we provide the entire gamut of styles to accommodate any design.
Casement Windows
The most favoured new construction project in Toronto and the GTA is Casement windows. They are open on a side hinge and they squeeze into tight compression seals. Thus, they provide high-quality energy efficiency and air tightness, which is essential to various energy demands of new constructions in Ontario Building Code. Their sleek, slender structure is also fitting to the current GTA house architecture.
Awning Windows
Awning windows are installed at the top and swing out in the bottom. They are frequently used in new construction where ventilation is required but the outward swinging casements cannot be installed, such as over kitchen counters, in bathrooms and basement exit openings. Also, awning windows permit fresh air even in the case of light rain.
Single & Double Hung Windows
Hung windows are commonly used in a traditional and heritage style of new construction in Oakville, Aurora, and other GTA based community with older architecture. The Double hung window designs have the advantage of opening both upper and lower sash -giving superior ventilation. Moreover, the two sashes lean inwards so that they can be cleaned at the comfort of the home.
Sliding Windows
Sliding windows would be a viable and affordable option to use in new construction projects. They do not have anything protruding inwards and hence can fit in small areas like garages, basements, and side elevations. Milano provides single slider, double slider, end vent slider in new constructions in the GTA.
Picture Windows
Picture windows are non-opening, fixed windows that allow as much natural lighting and uninterrupted views as possible. They are an inseparable part of new construction houses nowadays, especially in the living rooms, dining room and any room with a view on the backyard, ravine or green space. Picture windows provide the best insulation value of any type of window too because they do not open.
Fixed Casement Windows
The fixed casement windows have the modern, narrow casement profile without any operating hardware. They are a very good selection to new build feature walls, expansive glass area and architectural focus where design effect is the order of the day.
Milano Windows & Doors has helped Toronto homeowners get their new builds right for over two decades. Your windows determine how much light enters every room, how well your home holds heat through a Toronto winter, and how your property looks from the street. Our team works directly alongside your builder, installs every window to Ontario Building Code standards, and backs every unit with a lifetime transferable warranty. Every window is custom sized and installed by our own trained crew — no subcontractors. Book your free consultation today and let us get it right from the start.
New Construction vs Replacement Windows
Many homeowners and builders ask about the difference between the two. Here is a simple breakdown:
| New Construction | Replacement | |
|---|---|---|
| Best For | New builds, additions, full renovations | Existing homes with intact frames |
| Installation Method | Nailed into exposed studs | Fits inside existing frame |
| Exterior Work Needed | Yes — before cladding goes on | Minimal — no exterior removal |
| Structural Fit | Strongest possible fit | Quick and cost effective |
| Frame Condition Needed | Studs exposed | Existing frame must be sound |
| Custom Sizing | Yes — built to exact specs | Limited to existing opening |
| Long Term Performance | Highest — fully integrated | Very good — frame dependent |
New Construction Windows Features
The following features are standard in all Milano new construction windows:
Nailing Fin Frame
Every Milano new construction window includes a built-in nailing fin that wraps around the outer edge of the frame. This fin attaches directly to your exposed wall studs before exterior cladding is applied. As a result, the window becomes fully integrated into the building structure — delivering a stronger, more permanent fit than any retrofit installation method.
Low-E Glass Coating
Our Low-E glass coating works as a two-way thermal barrier on every new construction window we install. It reflects radiant heat back into your home during Toronto’s cold winters and blocks unwanted solar heat gain during summer. Therefore, your home stays comfortable year-round without placing extra load on your heating and cooling system.
Argon and Krypton Gas Fills
All Milano new construction windows use Argon or Krypton gas fills sealed between the glass panes. These inert gases are significantly denser than air, which dramatically slows thermal transfer through the glass. Furthermore, our double-sealed gas retention system prevents leakage for decades — maintaining peak insulation performance long after installation.
Multi-Point Locking Hardware
Every operable window panel in our new construction range includes multi-point locking hardware as standard. This system engages multiple lock points simultaneously across the frame when the window is closed. Additionally, multi-point locking creates a tighter, more airtight seal compared to single-point hardware — improving both security and energy performance at the same time.
Energy Star Zone 2 Certification
All Milano new construction windows carry Energy Star Zone 2 certification — the standard required for Ontario’s demanding climate. This certification confirms that every window meets or exceeds the Ontario Building Code energy performance requirements for new residential construction. Moreover, Energy Star certified windows may qualify your project for the Canada Greener Homes Grant and other available Ontario rebate programs.
Custom Sizing Available
No two new construction projects have identical rough opening dimensions. Because of this, Milano produces every new construction window to your exact specifications. Whether your project involves standard sizes or completely unique openings, our manufacturing team builds each unit with precision — ensuring a perfect fit that eliminates gaps, drafts, and air infiltration from day one.
Full Range of Colours and Finishes
Milano new construction windows are available in a complete range of exterior colours and interior finishes. Choose from classic white, matte black, bronze, grey, and a variety of custom colours to complement your building’s exterior design. Furthermore, dual-colour options are available — allowing a different finish on the interior and exterior of the same frame for complete design flexibility.
100% Canadian Made
Every Milano window is manufactured right here in Canada to the highest domestic quality and performance standards. Because our products are built specifically for Canadian climate conditions — from Toronto’s humid summers to its harsh winters — they outperform imported alternatives in real-world long-term use. Additionally, buying Canadian Made supports local manufacturing and ensures faster production timelines for your project.
Are You a Builder or Contractor?
Milano works directly with builders, general contractors, and renovation companies on new construction projects across Toronto. We offer consistent product quality across every unit, custom sizing to your exact rough opening specs, and on-site installation that coordinates with your build schedule.
Furthermore, builders who work with Milano on multiple projects benefit from streamlined ordering and a single reliable installation partner across every development. Contact our commercial team today to discuss your project requirements.
Who Needs New Construction Windows?
New construction windows are appropriate in a number of scenarios. This is the option to consider in case you are:
You are building a brand new home in Toronto and need windows installed directly into exposed wall studs before exterior cladding goes on. New construction windows are the right choice at this stage. They integrate fully into the building structure using a nailing fin — delivering a stronger, more permanent fit than any retrofit method.
You are adding a home extension such as a sunroom, second storey, or rear addition to your existing Toronto property. Because the wall framing is fully exposed during an extension build, new windows are the correct installation method. They seal the entire perimeter before cladding is applied — eliminating air gaps from day one.
You are completing a full gut renovation where the exterior cladding or siding is being completely stripped from your home. Because the wall studs become fully accessible during this process, new construction installation is far superior to a standard retrofit. This is the ideal opportunity to upgrade your windows with a full structural installation.
You are replacing damaged or rotted window frames where the surrounding wall structure has also been compromised. In these situations, a standard retrofit replacement cannot create a reliable seal around a damaged opening. New construction installation addresses the structural issue properly — rebuilding the opening correctly before the new window goes in.
You are upgrading from old aluminum frame windows in an older Toronto home during a full exterior renovation. Because the exterior finish is already being removed, new construction installation adds minimal additional work while delivering a significantly stronger result. It is the smartest upgrade to make when the wall is already open and accessible.
You are a builder or contractor working on a new residential development project anywhere in Toronto. New construction windows are the industry standard for all new residential builds — installed after framing is complete and before exterior finishes go on. Milano works directly with builders to coordinate installation at exactly the right stage of your construction timeline.
Frequently Asked Questions — New Construction Windows
Q: What is the difference between new construction and replacement windows?
New construction windows have a nailing fin that connects to the wall studs which are exposed. The replaced windows on the other hand fit into an existing window frame and they do not interfere with the surrounding structure. New construction installation would be ideal with new buildings, extensions, and complete renovations where the outer layer of the building is being stripped off.
Q: Do new construction windows meet Ontario Building Code requirements?
Yes. Milano new construction windows in Ontario are all rated as Energy Star with Ontario climate zone and current Ontario Building Code of energy performance. We also make documentation of the compliance of building permits available upon request.
Q: Can I use new construction windows on an existing home?
Yes — in certain situations. New construction windows are a good alternative, in case you are undertaking a complete exterior renovation in which the siding or cladding is being stripped. But in most of the existing houses in which the exterior is intact, retrofit replacement windows are quicker and less
Q: How long does new construction window installation take?
The timeline depends on the number of windows and the stage of your build. The installation normally takes one to two days on a typical residential new build, since the windows are installed prior to the laying of cladding. We plan the work in agreement with your building timetable in order to eliminate delays.
Q: Do you supply windows to builders and contractors across the GTA?
Yes. Milano is a builder, direct contact with general contractors as well as renovation companies in Toronto and the GTA. Our products are of consistent quality, we provide custom sizing, on-site assembly and scheduling of our products to fit your project schedule.
Q: Are new construction windows available in custom sizes?
Yes. Due to the individual rough opening sizes of every new build, all our new construction windows come in custom size. We make each one to your very specification–so that it will fit in any of your apertures precisely, airtight.
Q: Do new construction windows qualify for energy rebates in Ontario?
Yes. The new construction windows by Milano are Energy Star certified and can be eligible to the Canada Greener Homes Grant and other Ontario energy incentive programs. Moreover, new constructions which correspond to energy efficiency levels can also be taken into consideration as an extra incentive measure with the Enbridge Gas and other companies. There are programs that our team can take you through during your consultation.
Book Your Free New Construction Window Consultation Today
Building in Toronto or the GTA? Milano Windows & Doors is ready to supply and install premium new construction windows for your project — on time, on budget, and to the highest Canadian quality standards. Call us today or fill out our contact form and our team will be in touch within one business day.
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