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Slimline Aluminum Windows

DELCO ULTRASLIM SERIES

Slimline Aluminum Windows

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Free Estimate • No Pressure

ENERGY STAR Certified
Over 100 Windows Installed
Licensed & Insured
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<h2 style="font-weight:700;">Delco&#39;s Aluminum Replacement&nbsp;Windows</h2>

<p>Looking for windows that combine modern elegance, durability, and high energy efficiency?</p>

<p>Delco&rsquo;s Aluminum Low Profile Window Series is built for Toronto homeowners and builders who want it all: &nbsp;custom looks, lasting performance, and smart energy savings.</p>

<p>✅ Slim, Stylish, and Strong: Clean lines and a minimal frame give your home or commercial space a modern edge without compromising strength.</p>

<p>✅ Finish It Your Way: Choose from multiple finishes to perfectly match your home exterior or architectural vision.</p>

<p>✅ Energy Efficient by Design: Designed with a thermal break and full aluminum construction (interior + exterior).</p>

<p>✅ Versatile Configurations: Available in casement, awning, fixed, and more. It gives you full flexibility in design and function.</p>

<p>✅ Big, Bold Views: Perfect for large openings or curtain wall applications. It brings in natural light and architectural flair.</p>

<p>Whether you&rsquo;re remodeling a modern home, building a custom residence, or upgrading a retail or office space, Delco&rsquo;s aluminum windows deliver the performance you expect; and the style you deserve.</p>

<p><img alt="logo 5" src="/img/logo_5.png" /> <img alt="logo 11" src="/img/logo_11.png" /> <img alt="logo 12" src="/img/logo_12.png" /></p>

SLIMLINE ALUMINUM WINDOWS

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Delco's Aluminum Replacement Windows

Looking for windows that combine modern elegance, durability, and high energy efficiency?

Delco’s Aluminum Low Profile Window Series is built for Toronto homeowners and builders who want it all:  custom looks, lasting performance, and smart energy savings.

✅ Slim, Stylish, and Strong: Clean lines and a minimal frame give your home or commercial space a modern edge without compromising strength.

✅ Finish It Your Way: Choose from multiple finishes to perfectly match your home exterior or architectural vision.

✅ Energy Efficient by Design: Designed with a thermal break and full aluminum construction (interior + exterior).

✅ Versatile Configurations: Available in casement, awning, fixed, and more. It gives you full flexibility in design and function.

✅ Big, Bold Views: Perfect for large openings or curtain wall applications. It brings in natural light and architectural flair.

Whether you’re remodeling a modern home, building a custom residence, or upgrading a retail or office space, Delco’s aluminum windows deliver the performance you expect; and the style you deserve.

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Attention Builders / Designers / Architect

 We now carry Reynaers profiles

Let us inspire you! Send us your plans for a quote pdf download

  1. Construction

    The construction of Delco’s aluminum window profiles for the operating sashes are constructed using aluminum corners completely adjustable for a perfect exterior finish. The aluminum profile for the frame is fastened using aluminum corner keys and crimping technology.

  2. Frame

    The frame depth is 114mm (4 1/2") or 152mm (6"). The standard sash depth is 73mm (2 7/8") with a height of 44mm (1 3/4'') and designed for 32mm (1 1/4'') glazed units. Mullions are 116mm (4 9/16") deep.

  3. Sealing

    Continuous flexible weatherstrip and glazing beads, including the corners, on the glazed unit perimeter, ensure optimal insulation. A structural sealant joint is inserted on the window periphery on the interior part of the operating sash.

  4. Thermal Performance

    Delco’s new engineered window frame material, provides higher deflection of heat and cold, creating an insulating barrier between your hom and the outside . . . leading to much higher energy savings.

Thermal Performances

Venting Window (Casement)

Double Pane / Warm Edge Spacer / Low-e / Argon

termal performance
  • Uvalue = 0,27 (Btu/h*ft2*oF)
  • RE = 30 (Energy Rating)
  • ENERGY STAR® 2010 : ZONE C
  • 3 points (LEED for Homes)
 

Fixed Windows

Double Pane / Warm Edge Spacer / Low-e / Argon

termal performance 2
  • Uvalue = 0,26 (Btu/h*ft2*oF)
  • RE = 36 (Energy Rating)
  • ENERGY STAR® 2010 : ZONE D
  • 3 points (LEED for Homes)

Structural Performances

  • AAMA/WDMA/CSA 101/I.S.2/A4a40-08 A440S1-09
  • Classe CW-PG100, 915 X 1829mm (36" x 72")
  • Classe CW-PG80, 2388 X 1600mm (94" x 63")

The screens can be removed from the inside.

Frames

4 9/16'' et 6"

IG Configuration

1'' (25mm) Dual Pane

compliance

Compliance

  • The aluminum extrusions are made of alloy and quench aluminum 6063-T5, in accordance with the NAFS-08/11 standard.
  • The thermal insulation system is in accordance with the AAMA 303 standard.
  • The Royal Altitude Window Series meets the requirements of the AAMA/WDMA/CSA 101/I.S.2/A440-08 standard.

High Performance 

Delco's aluminum low profile window is designed for energy deflection and creating a solid barrier against the elements outside.
These windows can function like an insulated wall, while bringing natual light and warmth in.

 

 

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High Structural Performance

Delco's window series provides energy cost savings, longevity, durability and great looks.

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Sustainability

All of Delco's window materials are 100% recyclable or reusable. Make an upgrade to your home, and the environment too.

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Flexibility

Available in Casement, Awning or Fixed Window. Combination windows are achieved using either structural mullions with continuous frames or modular construction.

 

Finishes To Match Any Exteriorcolor swatch

Delco's Aluminum Windows are available in a wide range of colours.  Classic white, black or commercial brown come as standard and a two-tone option is also available giving you the option of having one colour on the interior and another colour on the exterior of the windows.  
Customizing with a clear anodized finish is achievable or we can colour match any finish to match your home's style. 

Ready to Upgrade Your Windows?

Get expert advice, accurate pricing, and professional installation from one of the GTA's most trusted window and door companies.

Free on-site measurement Written quote No obligation Installation included

Popular FAQs

How long would manufacturing take?
Manufacturing typically takes 4–8 weeks depending on the product, options, and current lead times. We’ll confirm an exact timeline when you place your order.
How long does window installation take?
Most window installations are completed in one to three days depending on the number of openings and the scope of the project.
What window sizes do you offer?
We offer a full range of standard sizes plus fully custom sizing to fit virtually any opening.
Do you handle permits and inspections?
Yes — where a permit is required, our team manages the paperwork and coordinates any inspections on your behalf.
Which method of installation should I go for?
We offer both retrofit and full-frame installation. During your free in-home assessment we’ll recommend the best method for your home.
Can I install these myself?
We recommend professional installation — it protects your warranty and ensures an airtight, energy-efficient fit. Every Delco install is completed by licensed, insured crews.
View more FAQs

Trusted by Homeowners Across the GTA

Adam Rivers
★★★★★

Amazing service and quality products. Installation was on time and on budget. Our windows look awesome. Edan gave us his full attention from the first call and every step of the way after. Highly recommend.

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Geraint
★★★★

New windows and door for basement and new metal/glass back door for main house - even through my indecisiveness and the covid-19 challenges Ayal and his installers were patient with me and I am very happy with the look and quality of the install.

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Ruven Y.
★★★★★

It was a pleasure dealing with Jack and all Delco's stuff. The windows arrived on the date for which were promised. The quality of the service, product and workmanship were excellent. I would gladly recommend Delco to anyone need Windows and Doors

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Jim Bird
★★★★★

We're so happy with our new front door. Very high quality finish, beautiful window. Installation was impeccable and done very quickly. Hinge and 3-point lock mechanism fit perfectly and feel very solid. Very attentive customer service. Door really ups our curb appeal!

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