Ottawa's Premium Custom-Built
High Energy-Efficient Windows
and opening Systems
Modern European Styles
Finest Materials & Engineering
We make your vision a reality.
Our success comes from consistently putting our clients' needs first.
Our experts will take the time to understand your vision and listen to your needs to bring your project to life.
We will guide you through the whole process to ensure that you make the best and most informed decisions.
Our family-oriented approach is to always bring comfort, trust and knowledge when meeting our clients.
You will never feel pressured. We care about your home, your well-being and you will be treated like family.
After all, our motto is that our products are Built for Comfort and Installed with Care..
Our thorough quality assurance and testing processes ensure that our products can withstand our tough Canadian climate.
We always measure twice for a perfect fit and to make sure we get it right the first time.
For these reasons, all products we install are backed by a 20 year warranty on parts and labour.
Dalmen Windows Series
(PVC or Hybrid)
Exceptional Performance and Strength
North-American Style Frames
(PVC or Hybrid)
Slim and Low Profile Design
Unparralleled Energy Efficiency
Modern European Look and Style
Next Generation Low Profile Design
Highest Performance and Efficiency
Modern European Style for Wide Openings
Triple-glazed windows are becoming increasingly popular due to their significant performance and energy-saving improvements. Our Energy Star-certified triple-glazed windows have an additional third pane included for insulation, compared to double-glazed windows with two panes and additional space between each section of glass.
This third window pane helps keep heat from escaping and reduces condensation. These windows can improve energy ratings by as much as 20 to 30% when comparing SHGC or U-value factors.
Low-Emissivity (Low-E) Glass from Germany
In this day and age, energy efficiency is on everyone’s mind. It’s no longer just about the environment — it’s about keeping energy bills low and ensuring homes and buildings boast greater thermal efficiency. Dalmen Windows are on the leading edge of this initiative, and our products are proudly using Saint-Gobain’s SGG Planitherm® LUX Glass glazing.
Produced in Germany, these new Low-E coated glasses are dedicated to triple-glazed units for better comfort, no matter the window size. Planitherm® LUX offers exceptional thermal insulation while maximizing passive solar gains:
Thermal Insulation: Ug = 0.7 W/m²K | Solar Gain: g = 62%
Simply put, Planitherm® LUX keeps your home cooler in summer and warmer in winter!
Ready to start your Project?
" If you’re looking for windows, Dalmen Pro is an excellent choice. We were able to receive the Greener Home Grant and purchased 15 triple pane windows with the white spacers. The updated windows look amazing. Customer service and satisfaction at its finest! Thank you for a job well done! "
“ I run a large private school. It is complex with various buildings and additions. In 2016, I needed all 107 windows and 6 doors replaced and updated. It was a big complex job. I got 9 different quotes. I was most impressed with Dalmen Pro. They came through on time and on budget. Students and school staff are hard on the doors and windows. Four years later, they are still like new. Every step of the way they have provided a superior product and superior service. Impressive organization. Impressive craftsmanship. Impressive products. ”
“ The windows installation work was done professionally and in accurate time frame, very friendly and satisfied with the work, and cleaned up after the work was done. Thank you for your service. ”
“ Dalmen Pro provided me with a great quote for high quality windows. The workmanship was outstanding and the guys were very professional and pleasant to deal with. Highly recommend them. ”
“ I had all my windows replaced by Dalmen Pro Windows and Doors. The sales representative was most helpful and knowledgeable, from measuring and choosing the type of product to setting a time frame that worked for me. The installation was done at the agreed time and the installers did a great job. Sarah from the office was also very pleasant to deal with. Overall...a very positive experience. Would highly recommend to family. ”