Row of tall windows with bronze frames, installed on Hardie board siding

Windows

Window Systems Engineered for Comfort

European-style uPVC and aluminum profiles, matched to Missouri's climate and professionally installed.

uPVC Product Family

Three depths of the same idea: a well-sealed frame

Every uPVC series shares the same multi-chamber construction principle — more chambers and greater frame depth mean better insulation and a quieter home. The right series depends on the opening and how much performance the room needs.

58

Classic Dependability

2-1/4" depth · 3-chamber

The standard window and door layout for typical residential openings. A budget-conscious profile without compromising frame integrity.

71

High Thermal Efficiency

2-3/4" depth · 6-chamber

Advanced 6-chamber construction for diverse climate zones that need real heating and cooling retention through Missouri's seasons.

80

Ultra-Premium Shield

3-1/8" depth · 7-chamber

A triple-gasket weatherseal system with an additional central gasket, built for the least air leakage and the most sound deadening.

The Cross-Section

What's actually inside the frame

Every profile is multi-chambered uPVC with steel-reinforced corners, a warm-edge spacer bar, and an insulated glass unit sealed into place — not a hollow shell painted to look substantial.

Thermal Resistance (R-value, h·ft²·°F/Btu)

Series 58
R-3.5
FT 72 (Aluminum)
R-4.3
Series 71
R-4.8
Series 80
R-5.8

Higher is better. Series 80's multi-chamber configuration is equivalent to a U-factor below 0.18.

Cross-section render of a multi-chamber uPVC window profile with triple glazing

Architectural Aluminum

For larger openings and heavier glass

Series 38 and 46M are non-thermal aluminum solutions suited to interior vestibules and partitions. For exterior applications, the FT 72 thermal-break system uses polyamide strips to deliver structural stability for heavier glazed configurations — narrow sightlines, high mechanical strength.

Premium Sliding Systems

Wide openings, engineered to move smoothly

  • HS 180 Lift-and-Slide

    Thermal-break aluminum, sashes up to 10.5 ft (3.2 m) tall and 880 lbs (400 kg), with exceptional wind and water tightness.

  • ISS 147 Parallel-Sliding

    uPVC with active double-contour sealing — continuous compression, no lifting required to slide. Sashes up to 6.5 × 8.2 ft.

Customization

Finishes, glass, and hardware to match the house

Finishes & Swatches

Over 50 architectural woodgrain laminations and durable polymer foil color swatches, inside and out.

High-Performance Glass

Low-E glazing with warm-edge spacer bars and argon fill, up to triple-glazed units on the Series 80 profile.

Testing & Engineering

Profiles engineered against AAMA and NFRC testing metrics for air infiltration, water deflection, and wind load.

These are manufacturer engineering specifications, not certifications held by Elegant Windows & Doors. See Certifications for how we explain them to homeowners.

Recent window installations

Window frame detail on grey siding Corner window installation detail Window openings during the framing stage

Ready to Upgrade Your Windows?

Get a free, no-obligation estimate. We'll help you choose the right series for each opening and explain the pricing clearly.

Looking for full technical specifications? See our product documentation →