DOORS AND WINDOWS
Nuns' Island
Whether you are working through the details of a new home or committing to a meaningful and long-overdue transformation of your existing living space, our well-honed expertise in doors and windows in Nuns' Island ensures outcomes that meet your vision and, in the overwhelming majority of cases, surpass it in every conceivable way. Every project is a fresh and welcome opportunity for us to reaffirm our deep-seated commitment to quality and to the wholehearted satisfaction of each customer we have the privilege of accompanying throughout the process.
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High-end door and window solutions in Nuns' Island
Fenplast for residential projects and contractors in Quebec
A trusted partner for residential contractors and homeowners setting out on renovation endeavors of all kinds, D&P Marchand crafts its doors and windows in Nuns' Island through a wholly integrated manufacturing process, spanning from the extrusion of PVC profiles all the way through to the careful delivery of the completed product. This end-to-end mastery over every phase of the production chain guarantees consistently impeccable results and unwavering quality, no matter the scale or complexity of the project in question.
Our doors and windows in Nuns' Island have earned a strong and well-founded reputation for their durability, elegantly polished finishes, and superior insulating performance. The vast majority of our models are ENERGY STAR® certified, translating into genuine and appreciable benefits including a noticeably more comfortable home and meaningful reductions in your energy expenditures throughout the year.
Whether you are taking on your very first construction project or finally following through on a renovation you have been thoughtfully planning for some time, choosing our doors and windows in Nuns' Island means entrusting your project to beautiful, long-lasting products built to withstand the full intensity of Quebec's unrelenting climate, reliably through every season of the year.
THE 3 ADVANTAGES OF CHANGING YOUR DOORS AND WINDOWS IN Nuns' Island
+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 Nuns' Island
The Solarcom line offers a versatile, high-performance range of commercial doors and windows in Nuns' Island, ideally suited to multi-residential and commercial projects of any size. Its modular design and extensive selection of assembly configurations make it a highly regarded solution among architects, general contractors, and project managers who demand both the flexibility to meet diverse requirements and the precision to execute them with excellence.
Engineered to unite durability, structural strength, and energy efficiency into one cohesive and dependable offering, our commercial doors and windows in Nuns' Island deliver outstanding performance throughout every season. CW-rated, the Solarcom collection achieves a remarkable equilibrium between thermal efficiency, structural reliability, and installation ease, while integrating effortlessly into modern buildings, institutional settings, and professional environments of every kind.
Featuring reinforced aluminum frames and robust thermal barriers, our commercial doors and windows in Nuns' Island stand as a durable, secure, and visually refined investment, fully consistent with prevailing construction standards and the particularly demanding climatic conditions that define Quebec.
OUR GUARANTEES
We designed our warranty program to provide Quebec homeowners with solid, relevant protection, particularly for replacement doors and windows in Nuns' Island 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 Nuns' Island 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 firmly anchored on Montreal's South Shore, with over 45 years of recognized expertise in residential and commercial door and window replacement. Throughout these decades, we have served as a dependable and committed partner for homeowners and contractors working through renovation projects of every kind, including doors and windows in Nuns' Island, providing lasting solutions that are carefully tailored to Quebec's climate and the practical realities of homes throughout our region.
Our knowledgeable advisors deliver personalized guidance at every step of your project, whether you stop by our showroom or prefer a consultation in the comfort of your own home, ensuring we develop a full and accurate understanding of your needs before recommending the products best suited to your property and your budget. All installations are carried out by our own dedicated in-house teams, who perform thorough on-site measurements before any work begins, guaranteeing precise execution, consistent quality, and dependable after-sales care.
For new construction projects or supply-only orders, our delivery service ensures that quality products are on your site at exactly the moment they are required. Our mission is straightforward: to offer a smooth, transparent, and entirely professional experience so that every doors and windows in Nuns' Island project is handled with care and produces results that are truly 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!!






















