Vinyl profile brands
Two premium uPVC directions: VEKA for proven European vinyl performance, Koemmerling for deeper German profile families.
Vinyl windows are not all the same. The profile depth, wall thickness, reinforcement, gasket design, glazing thickness and spacer system decide how the window feels and performs. ECOWIN helps choose between VEKA and Koemmerling based on the opening size, glass package, colour, budget and installation detail.

VEKA vinyl uPVC windows
VEKA is the profile direction for European-style uPVC windows and doors with strong day-to-day value, clean operation and good thermal planning. ECOWIN commonly presents VEKA Softline 82 and Softline 76 for Ontario homes that need comfort, efficiency and reliable window geometry.

Koemmerling vinyl uPVC windows
Koemmerling is the German profile direction for clients who want a deeper profile catalogue, premium 88 mm centre seal options, 76 mm systems, modern Unity design and coordinated large-opening solutions such as Premidoor lift-slide systems.
Profile catalogue
Choose VEKA or Koemmerling, then open the exact profile page.
Each family is separated by manufacturer and sorted by real use: windows, entrance and balcony doors, hybrid aluminum-look systems, portals and lift-slide openings.
VEKA profile systems
VEKA windows, doors and VEKAMOTION portals.
VEKA is used when a project needs proven European uPVC geometry, dependable thermal planning and clean tilt-and-turn or door operation.

VEKA Softline 82
Premium 82 mm VEKA direction for warm triple-glass-ready tilt-and-turn windows, thicker insulated glass and strong comfort planning.

VEKA Softline 76
Balanced 76 mm VEKA profile family for efficient European windows and balcony doors where comfort and value must work together.

VEKA Softline 70
A practical VEKA window direction for renovation and standard openings where reliable European operation and sensible budget matter.

VEKA Euroline
Classic VEKA uPVC profile direction for straightforward windows, economical packages and dependable day-to-day performance.

VEKA Swingline
Rounded VEKA design family for windows that need a softer profile shape while keeping European uPVC performance.

VEKA Artline 82
Modern concealed-sash VEKA direction for cleaner glass lines, contemporary facades and high comfort window planning.

VEKA AluConnect
Aluminum-look VEKA uPVC system for projects that need warm vinyl performance with a sharper contemporary exterior appearance.

VEKAMOTION MAX
VEKA lift-slide portal direction for wide patio openings, more daylight and smoother movement of large door panels.

VEKA uPVC Entrance Doors
European vinyl entrance door systems with reinforced profile geometry, insulated panels or glass and durable daily operation.

VEKA Balcony Doors
Balcony and terrace door planning using VEKA window-door profiles, warm glass, reliable hinges and correct threshold details.

VEKA Interior and Office Doors
VEKA door direction for interior, office and utility openings where easy maintenance and stable operation are important.

VEKA Portals
Sliding and portal door planning for wide exterior openings where glass weight, threshold and drainage must be specified correctly.
Koemmerling profile systems
Koemmerling 88, 76, 70, Unity and PremiDoor families.
Koemmerling separates its catalogue into window/residential door systems and sliding systems, so ECOWIN presents the same logic for easier quoting.

Koemmerling 88 Centre Seal
Premium 88 mm centre-seal direction for high comfort windows, triple glazing and strong air-water-wind planning.

Koemmerling 88 Residential Door
Deep Koemmerling entrance door direction for insulated slabs, warm thresholds and coordinated 88 mm window packages.

Koemmerling 76 Centre Seal
Efficient 76 mm centre-seal system for Ontario windows where thermal comfort, tight seals and renovation value must align.

Koemmerling 76 AD
76 mm rebate-seal direction for dependable window packages, practical glass planning and standard European operation.

Koemmerling 76 AluClip Pro
Hybrid aluminum-cover version of the 76 centre-seal concept for projects that want uPVC warmth and a sharper exterior finish.

Koemmerling 70 Systems
Compact 70 mm Koemmerling family for standard windows and replacement projects with reliable German profile design.

Koemmerling Unity
Modern system family with a clean cubic look for coordinated windows, doors and sliding elements.

Koemmerling Residential Doors
Residential door systems for entrance and terrace openings with reinforced frames, insulated glass or panels and quality hardware.

Koemmerling PremiDoor 88
Premium lift-slide system for large patio openings, heavy panels and high insulation targets.

Koemmerling PremiDoor 76
Lift-slide direction based around the 76 mm platform for wider openings with a value/performance balance.

Koemmerling PremiSlide 76
Sliding patio-door system for slimmer everyday patio openings where smooth operation and efficient installation matter.

Koemmerling PremiLine 80
Classic sliding system direction for economical patio openings, balcony access and practical residential layouts.
Glass package and installation
Good vinyl profiles need warm glass and correct installation to perform.
For Ontario projects, ECOWIN does not choose the profile alone. We match VEKA or Koemmerling frames with insulated glass units, warm edge spacers, Low-E coatings, gasket details, drainage and installation depth.
- Double or triple glass: selected by opening size, budget, sound control and energy target.
- Warm edge spacers: used to improve edge temperature and reduce cold-edge comfort issues.
- Colour and reinforcement: important for black, anthracite or large windows exposed to sun.
- Hardware direction: tilt-and-turn, fixed, balcony door, sliding and lift-slide operation are specified before ordering.
Choosing between VEKA and Koemmerling
Both are good profile brands. The right choice depends on the project.
ECOWIN presents the difference clearly so homeowners can choose based on performance, design and budget instead of only the word “vinyl”.
| Profile direction | VEKA: strong European uPVC window value with Softline 82, Softline 76, AluConnect and entrance door systems. | Koemmerling: deeper German catalogue with 88, 76, Unity and Premidoor systems. |
|---|---|---|
| Best use | Efficient tilt-and-turn windows, doors and practical whole-home vinyl packages. | Premium uPVC windows, modern design families and larger patio or lift-slide openings. |
| Glass planning | Double or triple insulated glass depending on profile and opening. | Triple glass, warm spacers and larger glass packages where the selected system allows it. |
| ECOWIN recommendation | Choose VEKA when you want proven European vinyl performance with a clear value/performance balance. | Choose Koemmerling when the project needs more premium profile depth, modern styling or coordinated large-opening systems. |
Profile information and product direction are based on ECOWIN profile pages and manufacturer product data from VEKA and Koemmerling. Final performance depends on size, glass, colour, hardware, reinforcement and installation.
Need vinyl windows for a project in Ontario?
Send ECOWIN your sizes or drawings. We will help compare VEKA and Koemmerling profiles with the right glass package for the home.




