TRANSYLVANIAN WINDOWS
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Modern home with large VEKA tilt and turn windows installed
European Craftsmanship, American Homes

Born in Transylvania. Built for America.

VEKA & Schüco German profiles. Saint-Gobain triple glazing. Tilt & turn windows and lift & slide doors — delivered to all 50 states.

0.59 W/m²K Best Thermal Rating
15+ Years Industry Experience
50 States Nationwide Delivery

Born Where Winter
Is Unforgiving

Transylvania sits deep in the Carpathian Mountains — a region of extraordinary beauty and one of Europe's most demanding climates. Winters here reach −20°C and lower. Summers push past 35°C. The temperature swings are violent, the conditions unrelenting.

That environment shaped everything. Our craftsmen did not design windows in a controlled laboratory — they built them knowing they had to survive seasons that would expose every weakness. The result is a manufacturing standard that makes most North American energy codes look modest.

Today, that same discipline travels with every window we ship. Manufactured in Transylvania, delivered to your door — built from the best materials Europe produces, assembled by hands that know what real weather feels like.

DE — Germany
Profiles & Hardware

VEKA and Schüco profiles — the backbone of European fenestration for over five decades. Every gasket, locking mechanism, and hinge sourced from German-engineered systems built to last 40+ years.

FR — France
Saint-Gobain Glass

The world's most advanced glass manufacturer. Our triple-glazed units use Saint-Gobain PLANITHERM coating — the gold standard in low-emissivity, passive-house-rated glazing used across Europe's most demanding architectural projects.

RO — Transylvania
Manufactured & Assembled

Every frame cut, welded, glazed, and quality-checked in our Transylvanian facility by craftsmen with decades of experience. Each unit is pressure-tested and thermally certified before it leaves our floor.

US — All 50 States
Delivered to Your Project

We manage the full journey — export documentation, ocean freight, customs clearance, and final-mile delivery. Your complete window schedule arrives as one coordinated package, ready for installation.

DE
German Profiles
& Hardware
FR
Saint-Gobain
Glass — France
RO
Assembled in
Transylvania
US
Delivered Across
All 50 States

Engineered in Europe,
Perfected for America

Our multi-chamber profiles with thermal breaks achieve U-values as low as 0.59 W/m²K — exceeding Passive House standards. Triple glazing up to 3⅛″ (81mm) for ultimate insulation.

-10°F Outside
72°F Inside

Engineering That Sets Us Apart

Two breakthrough technologies, working together — built into every window we make.

Multi-Chamber PVC Profile Cross-Section
Technology 01

Multi-Chamber Profile

Our multi-chamber profiles trap still air across multiple insulating layers, achieving U-values as low as 0.59 W/m²K — exceeding Passive House standards.

  • Triple glazing up to 3⅛″ (81mm)
  • Polyamide thermal breaks eliminate cold bridges
  • Multi-point locking RC1–RC4 rated
  • 3–5× more efficient than standard US windows
V-Perfect Corner Welding Technology
V-Perfect® photo coming soon
Technology 02

V-Perfect® Corner Welding

Patented welding technology that completely eliminates the visible seam at every corner — transforming a functional joint into a seamless design element.

  • Zero visible welding bead — invisible corners
  • Stronger, more durable joints than standard welding
  • Works on coloured, foiled & acrylic profiles
  • Adopted by hundreds of manufacturers worldwide

See the Difference in Your Home

Outdated windows are the single biggest source of energy loss in most American homes. Our triple-glazed European systems cut heating bills, eliminate drafts, and last a generation.

70%
Energy Savings
45 dB
Noise Reduction
30 yr
Lifespan
Heat Loss by Window Type
Longer bar = more heat escaping. Lower U-value is better.
Single Pane U = 5.8 W/m²K
Standard US Double Pane U = 2.7 W/m²K
Energy Star Rated U = 1.4 W/m²K
Transylvanian Triple Glaze ✦ U = 0.59 W/m²K

✦ Certified value — PHI Darmstadt passive house standard. Comparative figures based on NFRC published U-factor data.

Your Monthly Heating Bill
Average 2,000 sq ft home, cold climate zone (DOE Zone 5).
Before
$267
per month
Aging single-pane
windows
After
$159
per month
Transylvanian triple-glaze
installed
$1,296 average annual saving
on heating & cooling

Based on US EIA average residential energy data. Results vary by home size, climate, and usage patterns.

From the Blog

View all articles
European vs American windows comparison — multi-chamber uPVC profile vs standard US double-hung
Guides 12 min read
European vs. American Windows: The Complete 2026 Comparison Guide
Why are European windows 3–5× more energy efficient? We break down multi-chamber profiles, thermal breaks, and tilt & turn vs. single-hung mechanics.
Mar 28, 2026
Triple glazed window cross-section showing three glass panes with argon-filled chambers
Energy Efficiency 7 min read
Is Triple Glazing Worth It? Cost vs. Savings Breakdown for US Homeowners
Triple-glazed windows cost 15–25% more than double, but can cut energy loss by up to 50%. We crunch the numbers for every US climate zone.
Mar 7, 2026
Schüco lift and slide door creating seamless indoor-outdoor living space in modern home
Design 8 min read
Lift & Slide Doors: Creating Seamless Indoor-Outdoor Living Spaces
MB-77HS doors weigh up to 600 kg yet glide with a fingertip. Explore 90° and 270° corner solutions that erase the boundary between inside and out.
Feb 7, 2026

Ready to Transform Your Home?

Get a free consultation and quote for your project. Our experts will help you choose the right VEKA or Schüco system for your needs.

1629 K Street NW, Suite 300
Washington, DC 20006
(919) 665-6911
info@transylvanianwindows.com
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