The O'Brien Group distributes quality window and door products from the following manufacturers:


Gaulhofer Windows and Doors


Gaulhofer Windows and Doors



Since 1919 Gaulhofer has played a pioneering role as a supplier of sustainable wooden windows and a service-oriented full-range supplier of windows, front doors and sun protection. The company's HQ in Styria, Austria manufactures wooden and wood-aluminium windows, wooden and wood-aluminium front doors, as well as windows and front doors made from uPVC. Hundreds of selected specialist dealers and qualified installation experts guarantee that windows and front doors from Gaulhofer will remain functional for years to come.


  1. A century of experience and skill
  2. Premium quality "Made in Austria"
  3. An innovation every year
  4. Outstanding design
  5. Qualified specialist trade partners
  6. Well-trained installation partners
  7. 30-year warranty on wood-aluminium windows

Gaulhofer Windows and Doors manufactures a complete product line of European styled wood and aluminum clad windows and doors available in a wide range of operable and fixed configurations including:

  • tilt and turn inswing casement windows,

  • French tilt and turn inswing casement windows,

  • lift and slide windows and doors,

  • tilt and slide windows and doors,

  • entrance doors

Gaulhofer's triple weatherstripped wood windows, fitted with high performance glazing, are extremely energy efficient and can be configured to provide windows with U values suitable for Passive House construction.

Wood windows and doors are factory finished with the customer's choice of a wide range of environmentally friendly, stained or solid colored finishes.

All products are "custom made-to-order" and shipped by overseas container directly to the jobsite.


Download the Gaulhofer wood window and door brochure pdf file (18 MB) or contact The O'Brien Group for more information.


Gaulhofer Lift and Slide Door

Gaulhofer Lift and Slide Door




Gaulhofer Pure

PURE Sash Profile

Gaulhofer Plane

PLANE Sash Profile

SOFT Sash Profile

Gaulhofer Inline

INLINE Sash Profile




Lepage MillworkLepage Millwork



Located in Rivière-du-Loup Quebec, Lepage Millwork manufactures high quality wood, aluminum clad, and PVC windows and doors with distinctive quality and innovative details.

Lepage Millwork offers a complete line of customizable casement, awning, single hung and double hung windows, French casements, architectural specialty windows, French doors, patio doors, and custom entry systems. The choices are almost limitless: stain grade Eastern White Pine, Red Grandis, and Utile Mahogany wood species, interior and exterior factory applied stain or paint finishes, extruded aluminum cladding, hardward style and finish, brickmould type, glazing options, and grillwork style. Lepage Millwork's goal is to create traditional designs with modern technology.

For more information regarding Lepage Millwork products contact The O'Brien Group.

View the Lepage Millwork product brochures.



Heritage Windows and Doors

Heritage Windows and Doors


Heritage Windows and Doors has built a solid reputation on quality by manufacturing high performance, quality engineered vinyl windows, patio doors, handcrafted wood windows and custom entrance systems. Superb craftsmanship, attention to detail, and outstanding customer service are the trademarks of Heritage Windows and Doors. With the ability to custom design, engineer, and manufacture products to meet individual and unique species, configuration, and finish requirements, Heritage Windows and Doors are the obvious choice for architectural projects demanding custom solutions and historic restorations.

For more information regarding Heritage Window and Door products contact The O'Brien Group.