What are the Requirements for Basement Suite Windows in Alberta

Looking for the Requirements for Basement Suite Windows in Alberta?

When it comes to developing a legal basement suite in Alberta, windows play a bigger role than just letting in daylight. The rules around basement suite window requirements in Alberta are strict, and for good reason: these regulations protect families and tenants by ensuring safe escape routes in the event of an emergency. At Oriel Windows & Doors, we guide homeowners, landlords and property investors through the maze of local codes so you can build or renovate with total confidence. 

Why Basement Suite Window Requirements Matter 

Alberta’s building code treats basement suites as self-contained living spaces, which means every bedroom must have a code-compliant egress window. Egress windows are not just about ventilation or aesthetics; they provide a crucial escape path if fire or another emergency blocks the main exit. Meeting the proper basement suite window requirements in Alberta is not only about compliance, but also about safety and peace of mind for anyone living below grade. 

If you are considering converting your basement into a rental suite or secondary living space, ignoring these rules can put occupants at risk and make it difficult or impossible to obtain the necessary permits. We have seen far too many homeowners try to cut corners, only to face costly corrections or insurance complications down the road. 

Minimum Sizes and Egress Standards 

The Alberta Building Code sets out clear specifications for what qualifies as a legal egress window in a basement suite. As of the latest code cycle, these are the key criteria: 

• Every bedroom must have at least one window that opens directly to the outside, independent of the main entrance 

• The window must open without the use of keys, tools or special knowledge 

• The minimum unobstructed opening must be at least 0.35 square metres (3.77 sq. ft.) 

• No dimension (height or width) can be less than 380 mm (15 inches) 

• The window must be openable from the inside at all times 

It is important to remember that window wells can impact compliance. If your basement window opens into a well, the window must be able to open fully without obstruction, and the well itself must allow enough space for a person to exit. According to Alberta code, the window well must project at least 760 mm (30 inches) from the window. 

We always recommend consulting with professionals who are up to date on local and national building codes, as requirements can change with each code revision. For more detailed code references, the Government of Alberta’s building codes and standards page is an excellent resource. 

Window Height from Floor and Accessibility

Not all basements have the same layout, and sometimes a window must be placed higher up the wall due to exterior grading or foundation walls. Alberta building code states that the maximum height from the floor to the window opening is 1.5 metres (59 inches). If the window opening is higher, a permanent step or ladder must be installed to make the window accessible to all occupants, including children and older adults. 

Many older homes have smaller or higher basement windows that do not meet today’s egress standards. If you are renovating, it may be necessary to enlarge the window opening or lower the windowsill to achieve compliance. Our installation team frequently assists homeowners in safely cutting and resizing foundation walls to fit new, code-approved egress windows. 

Window Types Allowed in Basement Suites 

There is no single “best” window style for basement egress, but not all types will meet code. Casement windows (side-hinged) and sliding windows are common choices, but they must open wide enough for a person to climb out. Awning windows (those that hinge at the top) are usually not compliant for basement bedrooms because they do not open fully enough to allow escape. 

In every project, we help clients select the right type of window that balances safety, function and budget. We also offer modern, energy-efficient options that keep basements warmer and more comfortable year-round. 

Security and Energy Efficiency for Basement Suite Windows 

Homeowners often worry about basement windows as potential security risks. At Oriel Windows & Doors, we recommend products with reinforced locks and toughened glass. However, any security feature must not block egress or require tools to open the window in an emergency. Today’s high-quality windows can meet both safety and security needs without compromise. 

Energy efficiency is another important consideration for basement suites, where heat loss can be a real problem. New egress windows come with double or triple glazing and weatherproof seals to keep energy bills in check and boost year-round comfort. 

Permit Process and Inspections for Basement Suite 

Legal basement suites in Alberta must pass inspection by local authorities. Inspectors will verify that every bedroom window meets basement suite window requirements. Non-compliance can lead to delays, fines or even the requirement to undo your work. We work with homeowners from start to finish, ensuring every step, from product selection to installation and inspection, goes smoothly. 

If you are planning a basement renovation in Blackfalds, Red Deer or nearby, it pays to work with a local expert. Explore some of our recent projects and learn more about our basement window solutions on our basement windows page or read about our window replacement process. 

Are There Special Requirements for Legal Basement Suites in Alberta? 

If you are developing a legal suite, you must meet more than just window rules. Alberta’s building codes require proper fire separation, soundproofing and sometimes separate heating or ventilation systems. However, egress window compliance is always a must. Basement suites developed without proper egress windows can be denied occupancy or rental permits. 

For a full overview, see the Alberta government’s basement suite guidelines. 

Trusted Advice for Every Basement Project 

Choosing the right window for your basement suite is not just about ticking boxes. It’s about protecting lives and investments. At Oriel Windows & Doors, we offer free consultations and custom window solutions that satisfy all basement suite window requirements in Alberta. Our installation crews work year-round throughout Red Deer, Lacombe and surrounding communities. 

If you need expert advice on windows for a basement suite or are ready to book an installation, contact us today. We are happy to provide a quote, share code updates or answer any questions about legal secondary suites.

Book a Consultation & Upgrade Your Windows Today 

Whether you are planning a new basement suite or bringing an older rental up to code, we are ready to help. Discover the full range of egress windows, energy-efficient upgrades and custom solutions at Oriel Windows & Doors. Proudly serving Red Deer and the Central Alberta region, we make meeting basement suite window requirements in Alberta straightforward and stress-free.