Window and Door Installation Ottawa
Energy-efficient windows and entry doors
In short
Aelia Construction and Design replaces windows and doors in Ottawa homes and businesses, including sealing, insulating and finishing the opening. Like-for-like replacements usually do not need a permit, while changing the size of an opening or altering the structure can. Estimates are free and written.
Reviewed October 2026
We provide professional window and door installation services in Ottawa for residential renovation and construction projects. Upgrade your home’s energy efficiency, security, appearance, and curb appeal with properly installed windows and doors available in a range of styles and materials.
Windows and doors affect comfort, energy bills, security and how your home looks from the street. Aelia Construction and Design installs windows and doors in Ottawa homes, for replacement projects and for renovations and new builds.
Even a premium window performs badly if it is installed poorly. We measure carefully, install level and plumb, and air seal and flash the opening so it keeps out drafts and water through Ottawa’s winters.
What our Window and Door Installation service includes
- Replacement windows in common styles and materials
- Entry doors, patio doors and garage-access doors
- Accurate measuring and product guidance
- Removal and disposal of old units
- Flashing, insulation and air sealing around openings
- Interior trim and exterior finishing
- New openings and size changes where required
- Hardware and lock set-up
Our Window and Door Installation projects
How your project works
- 1
Consultation and measuring
We review what you want to improve, such as comfort, noise, security or appearance.
- 2
Product selection and estimate
We help you choose styles, glass and materials, and give a written estimate.
- 3
Ordering
Units are made to measure, so we confirm the sizes before ordering.
- 4
Installation
Old units are removed and the new ones installed, sealed and flashed.
- 5
Trim and clean-up
Interior and exterior finishing is completed and the site cleaned.
What affects the cost
Every home and project is different, so we price each job after seeing it. These are the main things that shape your estimate:
- Number and size of windows and doors
- Frame material and glass package
- Custom shapes, colours and hardware
- Changes to opening size or structure
- Interior trim and exterior finishing
- Access and number of floors
Frequently asked questions
How long does window replacement take?
Units are made to order, so there is a lead time after you approve the order. Installation itself is usually quick, and we schedule it with you.
Do I need a permit to replace windows?
Like-for-like replacements usually do not need one. Changing the size of an opening or altering the structure can. We confirm for your project.
Will new windows lower my energy bills?
Modern, well-installed windows reduce drafts and heat loss, which improves comfort. Savings vary with the home and the windows you replace.
Can you install doors and windows in the winter?
Often yes, with careful planning. We advise on the best timing for your project.
