Doors and windows in Saint-Constant

Un porche grillagé avec une table, des chaises et un canapé.

The solution to complete all your projects


Whether you're planning to build a new home or renovate your existing space, our expertise in doors and windows in Saint-Constant ensures results that meet and exceed your expectations. Each project is a new opportunity for us to demonstrate our commitment to excellence and customer satisfaction.

Your reference in fenestration in the region


D&P Marchand stands out for its diverse, high-quality offerings, tailored to the specific needs of each client. Our process begins with a detailed assessment of each property's needs, ensuring that each solution is perfectly tailored, both aesthetically and functionally.

Our products enhance the appearance of your home and contribute to better insulation, which can significantly reduce your annual energy costs. By choosing D&P Marchand for your doors and windows in Saint-Constant, you're opting for an upgrade that increases the comfort, security, and value of your property.

Un logo pour Renovert avec une maison et des feuilles

The tax credit on doors and windows in Saint-Constant


The RénoVert program consists of a refundable tax credit for carrying out eco-responsible residential renovation work in St-Constant and is established by the Quebec government on a temporary basis.


The tax assistance granted by this tax credit, which will be up to $10,000, will correspond to 20% of the portion of eligible expenses, exceeding $2,500, that an individual will have paid before October 1, 2018 to have eco-responsible renovation work carried out in Saint-Constant.


This tax credit is intended for individuals, including those who want new doors and windows and who have eco-responsible renovation work carried out by a qualified contractor on their principal place of residence OR their cottage under an agreement concluded after March 17, 2016 and before April 1, 2018.

Request a quote

For your door and window project in Saint-Constant

Complete our online submission form or contact us.


Online quote for doors and windows

Beyond the sale of doors and windows in Saint-Constant


  • Door Installation: Our options range from secure and stylish entry doors to garage doors, which combine functionality and aesthetics to enhance the security of your home.
  • Window Installation: Enjoy custom-designed windows to maximize thermal insulation and natural light, while minimizing maintenance.
  • Window Repair: Give your existing installations a second life thanks to our expert repair service, ensuring the longevity and performance of your windows.
  • Patio Door: Create an effortless passage between the comforting interior of your home and the natural beauty of your garden with our stylish and durable patio doors.

Services for doors and windows

We invite you to come meet our team at our showroom near St-Constant.


Delivery to St-Constant

For your non-installed projects and new constructions, our delivery service is at your disposal.

Thermos replacement in St-Constant

Do you have foggy or unsealed thermoses? Yes, we offer replacements!

Sale of doors and windows

Aware of the complexity of the door and window sector, DP Marchand's expert advisors will be able to judiciously advise you throughout your purchase, whether at home in St-Constant or in store.

Installation of doors and windows

Our installations are carried out by our own teams of professionals (without subcontracting) following a measurement by our installations director and will come to your home in St-Constant.

Parts Department

For your repairs, we have parts in stock or on order.

Repair in St-Constant

Whether it's for repairs or maintenance services, we have the qualified staff to meet your needs, whether it's for garage doors, doors, or windows.

Our story


Here is an overview of how D&P Marchand Inc. has evolved over time and has been able to offer doors and windows in St-Constant.

  • Quality

    We offer high-quality door and window products that you can visit our spacious showroom if you are traveling from La Prairie; as well as excellent value for money.

  • Experience

    A team of experienced representatives is available on site, or at your home in La Prairie, to advise you on the door and window products available.

  • Installers

    In addition, we have our own teams of installers (no subcontractors) who are trained and equipped according to the criteria of excellence that you are looking for for your doors and windows.

  • 5-year warranty

    Our door and window installations are guaranteed for up to 5 years. Our products are selected for you from suppliers offering excellent, particularly extensive warranties.

Our values


For direct and personalized service in St-Constant