Ready to receive you at our new building since March 6, 2006.

A true family business R. Vaillancourt & Sons -a true family business- has been on Drummondville's industrial scene for more than half a century. In 1947, Raymond Vaillancourt, along with his son Réal, started their business in a small workshop located on Notre-Dame street. At the beginning, they were crafting wooden sliding vinyl replacement windows. In 1961, because of increasing demand for thier products, R. Vaillancourt and sons ltée move to a new building on St-Pierre Street. Since then it has expanded several times, going from 14000 to 60 000 square feet. In the mid 1980s, the arrival of a new material, called PVC, greatly promotes the fenestration market. The company has adapted very rapidly to this keeping their place among the leaders in the industry. In 1988, Pierre, later joined by his brother Carl and supported by the talent of highly qualified and versatile employees, takes over the family business. Nowadays, it specializes in the manufacturing and retail of steel door systems and fenestration products for residential, rental, and commercial buildings. Its market is spread out on the whole province. Since its early days, R. Vaillancourt has welcomed many projects inside its walls. Over the years, it has adapted to its increasingly demanding customers and took up the challenge of realizing their most daring dreams. The business has been renown for its strive to keep on being so outstandingly flexible and to pursue its tradition of excellence.

Quality products and services

For more than half a century, we have been manufacturing and warranting our products.

The expertise and knowledge we have acquired in the field of Windows and doors enables us to make you benefit from the best quality-price ratio.

We have developed a partnership with the greatest suppliers in North America.

A reassuring warranty

All the materials we use are warranted for a long period of time-up to twenty years for some of them. We know for sure that purchasing Windows and doors is a true investment.

These high-quality products will stand up to time. And, as we all know, a warranty is valid only when the commitments are respected.

For more than 60 years, R. Vaillancourt has warranted and respected its commitments!

A diversified showroom

A vast showroom was designed by our specialists to allow you to have a closer look at our different products and their many features.

Purchasing directly from the manufacturer will assure you the best selection and the best prices without going through the middle-man.

1- Intercept Glass (Robover)

Comparison of sealants

The process used by Robover to seal the glass panes is six times more effective than the traditional glass against humidity. DSE lets four grams of humidity go through while polysulphide lets 24 grams go through. It is also three times superior to double sealants because the barrier of DSE is of 7.5mm wide and that of butyl is of only 2.5mm. The ability of DSE to hold the glass walls together is 70% superior to that of traditional glass with polysulphide. The fibre strength of DES is of 300 psi while polysulphure does not exceed 175 psi.

In cold climate, the gas contracts and causes stretching of the polysulphide. Over time, small cracks appear, letting through humidity. In hot climate, the gas expands causing stretching in the butyl joints. Over time, this stretching greatly reduces the effectiveness of the barrier against humidity.

The interlayer adapts to the movement of the windowpane so that there is much less stretching of the sealant.

Manufacturing Process

Automated production has several advantages such as:

The interlayer frame is continuous without any plastic corners and therefore offers several advantages such as:

Gas chamber
When a gas such as air or argon is trapped between two panes of glass, it becomes insulated.

Desiccators
These little porous balls absorb humidity present in the gas. However, the balls have a tendency to produce dust particles that deposit themselves on the inside surface of the pane.

Interlayer frame
Four plastic corners hold the hollow aluminum frame. It contains the dissector and creates space between the two panes of glass. However, these plastic corners are often the cause of defects in thermal insulation windows.

Butyl
This 2,5 mm wide barrier stops humidity from forming inside the gas chamber.

Polysulphide
This sealant is used to hold the two window jambs together, but offers little protection against humidity.

Desiccators
A special paste applied around the thermal insolated glass absorbs humidity. This paste is 40% more effective than porous balls. In addition, this paste does not generate any dust particles.

Interlayer frame
This thin steel profile is less conductive than aluminum. It contains the desiccators and creates spacing between the two windowpanes. Its " U " shape offers only one passage for heat circulation, while the traditional frame opens many paths. To illustrate this principal, we can compare heat transmission to road circulation. The traditional interlayer frame would then be compared to a heat highway and the Robover frame to a narrow alley.