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Two-story house with large uPVC windows

Window installation

Windows made to order for new builds and renovations, delivered to your job site.

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Windows for new builds and renovations

Building a new house or opening up a wall? Send us your plans. We supply windows made to your openings, deliver them to your job site and connect you with trusted installation partners.

  • Send your plans

    Send your drawings or a window list and we will prepare your quote.

  • Made to your openings

    Each window is made in Europe to the dimensions of your openings.

  • Installed and sealed

    Trusted partners, or your own crew after our training, fit each window in the wall opening and seal it against air and water.

Why installation matters

  • Poor installation wastes a good window

    Gaps and weak seals let heat and water through, whatever the window.

  • Specified in writing

    We specify the system, opening types and finish, and put it in writing.

  • A realistic schedule

    We give you a realistic schedule for your build or renovation.

uPVC and aluminum systems

Choose a uPVC series or an aluminum system, then the opening types, glazing, hardware and accessories.

Schedule a measurement
Dining room with floor-to-ceiling glazing

Glazing for Michigan winters

Triple glazing is standard on Performant 88 and Comfort 76, with U-factors from 0.12.

Cutaway of a window frame with three glass layers

Multi-chamber frames

Our uPVC profiles have five to seven chambers that slow heat loss.

Cutaway of a uPVC frame showing its insulation chambers

Match your exterior

60 uPVC finishes and 35 aluminum colors and wood finishes.

See colors
Twelve window decors: white, grays, woodgrains and colors

How we anchor the frame

Each frame is screwed into the wall structure through its steel reinforcement, at set points all around the frame. This is our typical layout.

6-3/4" (170 mm) up to 25-5/8" (650 mm) 6-3/4" (170 mm) each side 94-1/2" (2400 mm) 72" (1830 mm) Frame screw into the structure
Typical layout of a two-field window, seen from inside; final layout per opening and wall.
At the corners
The first fixing about 6-3/4" (170 mm) from each corner of the frame.
At a mullion
One fixing on each side of a mullion, about 6-3/4" (170 mm) from it.
Between fixings
No more than about 25-5/8" (650 mm) apart.
Frame screws
7.5 x 112 mm (about 5/16" x 4-7/16") frame screws, through the steel reinforcement chamber of the frame into the structure.
The joint
A joint of about 1/16" to 1/8" (2 to 3 mm) between frame and wall, sealed.
Lift & slide doors
The sill is not screwed, only sealed; the head and the jambs are fixed.
Other fixings
Comfort 76 Plus frames can also be fixed with mounting dowels through the steel, with classic fixing brackets, or with dowels set in a dedicated chamber of the uPVC profile. Installation is quick and clean.
Nail flange
Comfort 76 Plus frames can be ordered with an optional PVC nail flange.

Typical; final layout per opening and wall. We set the exact fixing points for each opening when we measure.

Delivery & logistics

We bring your windows from Europe to Michigan and on to your project, and we take care of every step in between.

  • Standard sizes in 48 hours

    Standard windows in stock at our Michigan warehouse ship within 48 hours of your order.

  • Custom orders in 6 to 10 weeks

    2 to 4 weeks of production in Europe, then 4 to 6 weeks by sea. Containers leave Europe every week.

  • Import costs included

    Our prices cover transport from Europe to the US, brokerage and customs duties. We handle the logistics, customs and transport for you.

  • To your door or job site

    With logistics centers in Europe and the US, our dedicated trucks deliver from the Ava Window warehouse straight to your door or job site.

  • Free shipping over $35,000

    Orders over $35,000 ship free within 1,500 miles of Michigan.

  • No full container needed

    We consolidate shipments to keep your cost down, and adding a window or door later is easy and affordable.