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Energy Plus Series Windows
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Energy Efficient Windows by Omega Windows & Doors Manufacturing
Omega Windows & Doors, based in Toronto, proudly offers high-efficiency Energy Plus Series windows designed to handle the challenges of Ontario’s four-season climate.
Featuring triple-pane glass, low-E coatings, and a highly effective engineered multi-chamber vinyl frame design, these windows help reduce energy loss while keeping your home comfortable and efficient—now available across Markham, Stouffville, and surrounding areas.
Ideal for homeowners seeking energy-efficient window replacements in the GTA, these ENERGY STAR®-rated windows provide long-term savings, improved insulation, and reliable performance in both new builds and retrofits.
What Are Energy Plus Windows?
Windows are a critical component of your home’s energy performance. In winter, standard windows allow indoor heat to escape; in summer, they invite solar heat inside. Omega’s Energy Plus windows are engineered to solve both problems with advanced materials and precision design.
Each unit is built with double or triple-pane insulated glass, gas-filled chambers—using argon or krypton—to block heat transfer, and advanced Low-E coatings that reflect infrared heat while minimizing UV exposure. The multi-chambered uPVC frames are expertly engineered to enhance thermal resistance and maintain long-term structural durability.
This high-performance system helps regulate indoor temperatures, minimizes hot and cold spots, and improves year-round energy efficiency—without compromising on aesthetics or ease of maintenance.
Premium Built-In Key Features & Options
Why Homeowners Trust Energy Plus Windows for Performance, Comfort, and Value
From freezing Toronto winters to humid Markham summers, Energy Plus Series windows by Omega are built to perform. With precision engineering, triple-pane glass, and advanced low-E technologies, these windows offer year-round energy savings, better indoor comfort, and long-term durability. Discover why homeowners in Stouffville, York Region, and the GTA choose Energy Plus for smart, energy-efficient window upgrades.
How to Get the Right Energy Plus Windows for Your Home
Not every home is the same—and not every window should be either. Omega helps homeowners in Toronto, Markham, and Stouffville choose the ideal Energy Plus configuration based on:
Climate zone and window orientation
Architectural style and aesthetic preferences
Energy performance ratings, including U-factor and SHGC
Installation best practices to ensure proper sealing and long-term efficiency
Local building code compliance and ENERGY STAR® eligibility
Local building code compliance and ENERGY STAR® eligibility
Professional installation is key. Omega’s trained teams ensure airtight fitting, maximizing the performance and lifespan of every Energy Plus window.
The Benefits of Energy Plus Windows
Choosing Energy Plus Series windows delivers proven energy savings and ENERGY STAR® performance across Ontario.
Up to 40% greater energy efficiency than standard single-pane windows
Improved indoor comfort, eliminating drafts and regulating heat
UV protection, minimizing sun damage to furniture and flooring
Soundproofing benefits with triple-pane glass
Reduced condensation, enhancing clarity and longevity
Increased home resale value with ENERGY STAR®-qualified upgrades
For many homeowners, these windows pay for themselves through lower energy bills and long-term durability.
Energy Plus Triple Pane Windows: Peak Performance You Can Count On
Omega’s triple-pane window systems are designed for homeowners who demand maximum performance in all seasons. Each triple-pane unit includes:
Three panes of glass, sealed with dual gas-filled spaces (argon or krypton)
Two ½” warm-edge spacers that enhance perimeter insulation
Multiple layers of Low-E coatings for climate-specific optimization
Increased sound control, perfect for urban and suburban areas alike
These windows deliver one of the highest possible R-values, helping to minimize energy loss and maximize indoor comfort—a critical advantage during Ontario’s harsh winters and humid summers.
Custom Energy Efficiency for Markham & Stouffville Homes
In neighborhoods like Unionville and Ballantrae, homeowners face everything from sub-zero winters to humid summer afternoons. That’s why Omega’s Energy Plus Series windows are optimized for the variable climate of Markham, Stouffville, and the entire York Region.
Whether you’re renovating a classic home in Angus Glen or outfitting a new build in Stouffville Village, these windows:
Balance solar control and insulation
Reduce heating and cooling loads
Protect interior finishes from fading
Support eligibility for Canada’s Greener Homes energy rebates
Toronto Winters. Stouffville Storms. Markham Summers. One Window to Rule Them All.
Energy Plus windows are manufactured locally by Omega to meet the needs of real Canadian homes. Their performance is a result of precision engineering and high-quality materials:
1 3/8” true triple-pane glass units for enhanced thermal and sound insulation
Dual ½” warm-edge spacers that reduce edge conductivity and condensation
Multiple Low-E options, including Low E² and LoĒ-i89 for tailored solar protection
Structurally reinforced vinyl frames with a multi-chamber profile for improved thermal performance—engineered to perform exceptionally well, even without foam insulation
This design approach ensures excellent energy performance while leaving room for future innovation or configuration upgrades.
LowE 180
When winter approaches our LowE 180 glass is the perfect solution. It keeps your home warmer and in return makes for a more comfortable living inside. It accomplishes this by blocking heat loss to the outside and lets the sun’s natural heat inside. By doing this it reduces your energy costs in the winter.
LowE squared
For an all weather glass that performs in the summer and winter look no further. In the hot summer days, its LowE coating blocks 63% of the sun’s heat and by not having a dark tint still allows you to see out without any haze. In the winter its design helps reflect your homes heat back inside reducing your homes natural heat loss.
LowE 366
For those customers looking to stop the heat when the temperature rises, LowE 366 is the only choice. The advanced LowE coating keeps the sun’s blistering heat out while still allowing natural light inside. Your home will stay cool and comfortable all summer long. As an added benefit to blocking the suns heat, LowE 366 also helps protect your furniture, carpets, etc. from the sun’s harmful ultraviolet rays which is the leading factor for fading.
LoĒ-i89 Glass (4th surface LowE)
For ultimate performance in a double pane window, Omega offers a 4th surface LowE. With a centre of glass U-factor of only 0.20 your double pane window now performs like a triple pane without all the extra costs. When i89 is paired with any one of our LowE’s it not only meets strict building codes for energy efficiency it surpasses them. An added bonus, i89 is easy to clean and more importantly does not block your view with any tinting or hazing.
Triple Pane
With triple pane glass you get the most energy efficient glass on the market. The extra layer of glass not only increases your windows U and R ratings it also increase sound dampening. Our triple pane units are a true 1 3/8 thick which allows for two 1/2 spacers which is the ideal thickness for maximum performance and energy efficiency. There are many LowE combinations you can do with triple glass and all of them will get you the highest levels you are looking for.
Spacer
At Omega our spacer is ideal for thermal performance and strength.
Key Features:
- optimized energy savings
- Excellent condensation and mold resistance
- Superior Argon gas retention
- Lower U-Vaule
- Allows for high desiccant content to absorb moisture at faster levels
- Extreme durability against harsh climates resulting in longer lasting windows
AFFORDABLE. ENERGY EFFICIENT. LOW MAINTENANCE
LIFETIME WARRANTY
20 YEAR WARRANTY
