DOORS AND WINDOWS
Lachine
Whether you are building from the ground up or breathing new life into your existing home, our specialized knowledge in doors and windows in Lachine ensures outcomes that meet your vision and, more often than not, surpass it. Each project is an opportunity for us to reaffirm our dedication to quality craftsmanship and the genuine satisfaction of every customer we have the pleasure of working with.
Formulaire - Homepage EN
High-end door and window solutions in Lachine
Fenplast for residential projects and contractors in Quebec
A trusted ally for residential contractors and homeowners embarking on renovation journeys, D&P Marchand manufactures its doors and windows in Lachine through a fully integrated production process, spanning from the extrusion of PVC profiles all the way to the finished product. This end-to-end mastery of the manufacturing chain guarantees flawless results and consistent quality, regardless of the size or complexity of the project.
Our doors and windows in Lachine have earned a strong reputation for their durability, refined finishes, and superior insulating capabilities. The vast majority of our models carry ENERGY STAR® certification, translating into real, everyday advantages such as enhanced home comfort and noticeable savings on your energy bills.
Whether you are embarking on a brand-new construction or finally moving forward with a long-awaited renovation, choosing our doors and windows in Lachine means trusting in beautiful, long-lasting products built to withstand the demands of Quebec's harsh climate, season after season.
THE 3 ADVANTAGES OF CHANGING YOUR DOORS AND WINDOWS IN Lachine
+70%
Over 70% of homeowners in Quebec prefer a local manufacturer when undertaking door and window renovation projects. Choosing locally made products means supporting the local economy while benefiting from windows specifically designed for the Quebec climate.
15%
Energy-efficient doors and windows designed for Quebec winters can reduce annual heating costs by up to 15%. Improved insulation directly contributes to home comfort and long-term energy savings.
#1
Replacing doors and windows is among the top three residential renovations offering the best return on investment in Quebec. It's an improvement that increases property value, energy efficiency, and visual appeal.
COMMERCIAL PRODUCTS
A versatile and high-performance aluminum solution in Lachine
The Solarcom line delivers versatile, high-performance commercial doors and windows in Lachine, perfectly suited to multi-residential and commercial projects of any scale. Its modular architecture and broad selection of assembly configurations make it a go-to solution for architects, general contractors, and project managers who demand both flexibility and technical precision.
Engineered to combine durability, structural integrity, and energy efficiency, our commercial doors and windows in Lachine perform reliably throughout every season. CW-rated, the Solarcom collection strikes an outstanding balance between thermal performance, structural robustness, and installation efficiency, while integrating seamlessly into modern buildings, institutional settings, and professional environments.
With reinforced aluminum frames and high-performance thermal barriers, our commercial doors and windows in Lachine represent a solid, secure, and aesthetically refined investment, fully aligned with current construction standards and the climatic realities unique to Quebec.
OUR GUARANTEES
We designed our warranty program to provide Quebec homeowners with solid, relevant protection, particularly for replacement doors and windows in Lachine projects.
5-year labour warranty on the installation of residential doors and windows.
10-year warranty against thermal seal failure on replacement units.
1-year warranty against thermal breakage on replacement thermal units.
Our glazing is manufactured to withstand Quebec winters without losing its insulating properties, season after season. You also benefit from the manufacturers' warranties on the doors and windows in Lachine we distribute, for even broader coverage.
D&P MARCHAND DOORS AND WINDOWS ON THE SOUTH SHORE OF MONTREAL
Established in 1979, D&P Marchand is a Quebec family-owned business deeply rooted on Montreal's South Shore, with over 45 years of experience in the replacement of residential and commercial doors and windows. Throughout the years, we have been a reliable partner for homeowners and contractors navigating renovation projects, including doors and windows in Lachine, delivering durable solutions tailored to Quebec's climate and the practical realities of homes in our region.
Our experienced advisors offer personalized guidance at every stage of your project, whether you visit our showroom or prefer a consultation at home, ensuring we thoroughly understand your needs before recommending the products that best fit your property and budget. All installations are carried out by our own in-house teams, who take precise on-site measurements prior to any work, guaranteeing accurate execution, consistent quality, and dependable after-sales support.
For new construction projects or supply-only orders, our delivery service ensures that quality products arrive at your site exactly when needed. Our mission is straightforward: to deliver a smooth, transparent, and fully professional experience so that every doors and windows in Lachine project is handled with care and yields results built to endure.
WHAT OUR CUSTOMERS SAY ABOUT US
Jean-Philippe M.
5 weeks ago
Second home project and second project completed by D&P Marchand. WOW! What service! We are SO satisfied with the welcome, consultation, and installation service that we recommend them to everyone. Bravo to D&P Marchand and their ENTIRE team.
Robert L.
10 weeks ago
The best in their field, from their advice on existing windows and replacements to the installation team! No negative points in my experience with them.
Hi there.
2 weeks ago
Very high-quality work, highly competent staff attentive to customer needs. And finally, excellent after-sales service.
Linda T.
8 weeks ago
What a fantastic team! Our salesperson immediately put us at ease. He gave us excellent advice and helped us choose the products. The installation appointment was on time, down to the minute. We have nothing but praise for the entire team. Five thumbs up!!






















