ABOUT OUR
BIG FAMILY
A family history that goes back over 35 years
In 1987, René Gosselin, father of Marie-Pier and Véronique, founded the company. After his retirement in 2014, his daughters Marie-Pier and Véronique, along with Serge Malenfant, took over the reins. Serge, Marie-Pier, and Véronique had already been working for the company for several years, with Serge heading up installations and responsible for taking measurements at customer sites.
In 2020, Serge’s daughter Audrey joined the team, and in 2024, she became co-owner alongside Véronique, Marie-Pier, and Serge. In 2025, Marie-Pier decided to leave the company to pursue new challenges, and Véronique, Audrey, and Serge continued the adventure together.
Today, the trio runs the company, preserving the values and family spirit established by René. At Portes et Fenêtres Valleyfield, that’s how we take care of you!
Experts
Discover the smiling faces behind every properly installed door and window: here are our leaders, the undisputed masters of the fenestration field, blending expertise with a touch of humour to turn each installation into a memorable experience.
Véronique Gosselin
Co-owner
Serge Malenfant
Co-owner
Audrey Malenfant
Co-owner
Proven expertise
With our particular climate, we don’t do things halfway! The windows and doors we sell have a proven track record in terms of comfort, efficiency and cost-effectiveness, both in summer and winter. Our manufacturers know our requirements and respect our high standards when it comes to value for money. That’s why we do business with Quebec companies like Fene-Tech, Standard and many others!
Experience
Find out what our customers have to say about us and how we’ve been able to brighten up their spaces with our innovative, customized window solutions.
