What Are Awning Windows?
Awning windows are hinged at the top and crank open outward from the bottom, forming a natural canopy over the opening. This design is what makes them unique: when open, the outward-tilting sash deflects rainwater away from the gap — meaning you can ventilate your home freely even during Ottawa’s rainy spring and summer days.
They are operated with a smooth crank handle, making them practical at any height — above kitchen counters, high on bathroom walls, or in basement openings where a standard window would be awkward to reach.
All BestCan awning windows are ENERGY STAR® certified and custom manufactured to fit your home’s exact dimensions.
Why Awning Windows Are Ideal for Ottawa’s Climate
Ottawa experiences a full four-season climate: wet springs, hot and humid summers, dry autumns, and winters that regularly drop below –20°C. Awning windows are one of the few window styles designed to handle all of it.
Rain Protection
Ottawa averages over 900mm of precipitation annually. Because the sash projects outward when open, it acts as a built-in awning — directing rain away from the opening and preventing water from entering your home. You can leave them open during a summer shower without worry.
Airtight Seal in Winter
When closed, awning windows use a compression seal system — the sash presses firmly against the frame on all four sides, creating a tight barrier against Ottawa’s cold winter drafts. This is significantly more airtight than sliding or double-hung windows.
Energy Efficiency Year-Round
BestCan’s awning windows come standard with Low-E glass and argon-filled insulating glass units. Triple glazing is available for maximum thermal performance in Ottawa’s harshest winters. Properly specified awning windows can meaningfully reduce your heating and cooling bills.
Privacy Without Sacrificing Light
Because awning windows can be placed high on a wall, they allow natural light and fresh air in while keeping your interior private — making them perfect for bathrooms, bedrooms, and street-facing walls.
Where Are Awning Windows Used in Ottawa Homes?
Awning windows excel in locations where other window styles fall short. Here’s where Ottawa homeowners commonly install them:
- Bathrooms High placement on the wall preserves privacy while eliminating humidity and moisture after showers — even when it’s raining outside.
- Kitchens are installed above a sink or counter where a side-swinging casement window would be obstructed. The crank operation keeps them accessible without requiring you to lean over the counter.
- Basements Awning windows are a popular and practical choice for basement walls, where they provide ventilation and natural light while maintaining security. Their outward-opening design also makes them suitable for egress applications in finished basement bedrooms.
- Paired With Picture Windows One of the most popular window configurations in Ottawa new construction is a large fixed picture window with an awning window directly above or below it. The picture window maximizes the view; the awning window adds ventilation without interrupting the sightline.
- Laundry Rooms A small awning window above a washer and dryer eliminates trapped moisture and dryer odours without sacrificing wall space.
- Bedrooms Placed high on a bedroom wall, awning windows provide quiet ventilation while maintaining privacy from the street.
Awning Windows vs. Casement Windows — What’s the Difference?
These two window types are often confused because both use crank operation and compression seals. The key difference is hinge placement — and that one difference determines where each works best.
| Feature | Awning Window | Casement Window |
| Hinge location | Top | Side |
| Opening direction | Outward from the bottom | Outward to the left or right |
| Rain protection when open | Yes — sash deflects rain | No rain enters the opening |
| High-wall placement | Ideal | Possible |
| Best rooms | Bathroom, kitchen, basement, laundry | Living room, bedroom, dining room |
| Ventilation direction | Upward and inward | Directional (catches cross breeze) |
Many Ottawa homeowners use both: casement windows for primary living and bedroom openings, and awning windows for kitchens, bathrooms, and anywhere rain protection or high-wall placement matters.
BestCan Awning Window Features — Explained
Our awning windows are engineered for performance and longevity. Here’s what’s included and what it means for your home:
Fusion-Welded Corners (Frame & Sash) The frame and sash corners are thermally welded together rather than mechanically fastened. This creates a seamless, airtight joint that resists water infiltration and structural stress over decades of use.
Premium Super Spacer® with Low-E & Argon (Standard) The 7/8″ insulating glass unit comes standard with Low-E coating and argon gas fill. Low-E glass reduces heat loss in winter and blocks UV-driven heat gain in summer. Argon gas between panes adds a further layer of insulation. Optional 1⅛″ and 1⅜″ triple glazing is available for maximum Ottawa winter performance.
Nesting Operators — Smooth for Life The crank mechanism is designed to fold neatly away when not in use, keeping the window trim and unobtrusive. The handle is contoured for a comfortable, easy grip and smooth operation over the lifetime of the window.
Triple-Seal Weatherstripping & Step-Down Frame Three separate weatherstripping seals work together with a step-down frame design to block air and water penetration from multiple angles — critical for Ottawa’s freeze-thaw cycles and spring rains.
Tape Glazing System & Co-Extruded Flexible Seal A flexible seal on the exterior of the sash works with the tape glazing system to prevent leaks and reinforce structural integrity — keeping the glass firmly in place through Ottawa’s temperature extremes.
Two Frame Depth Options — 3¼″ and 4⅝″ Choose the frame depth that suits your wall construction. The deeper 4⅝″ frame provides added rigidity and better insulation continuity within the wall cavity.
How Much Do Awning Windows Cost in Ottawa?
Awning window installation in Ottawa typically ranges from $450 to $900 per window, depending on size, frame depth, glass package, and installation type (retrofit vs. full-frame).
Factors that affect cost:
- Window size — larger openings require more material and labour
- Glass package — standard double-pane vs. optional triple glazing
- Installation type — retrofit (existing frame stays) is less expensive; full-frame installation is more comprehensive and recommended for older homes with damaged frames
- Number of windows — replacing multiple windows in one project reduces per-unit labour costs
Government rebates may apply. ENERGY STAR® certified windows like BestCan’s awning windows may qualify for the Canada Greener Homes Affordability Program, which supports low-to medium-income households with energy efficiency upgrades. Ask us about current programs when you request your quote.
The BestCan Installation Process
Proper installation is as critical as the window itself. Poor sealing in Ottawa’s climate leads to drafts, condensation, ice formation, and long-term moisture damage.
Step 1 – Free In-Home Consultation We visit your home, assess your existing openings, discuss your goals, and provide a no-obligation written quote.
Step 2 – Custom Manufacturing Your awning windows are built to your exact specifications — size, frame depth, glass package, colour, and finish.
Step 3 – Professional Installation Our certified installers remove the old window, prepare the rough opening, and install the new unit with foam insulation, flashing, and high-performance sealant throughout.
Step 4 – Inspection & Cleanup We test every crank, seal, and weatherstrip before leaving — and we clean up completely.
Caring for Your Awning Windows
BestCan awning windows are designed for minimal maintenance, but a little regular care goes a long way toward maximizing their 20–40+ year lifespan.
- Clean the Glass Twice a year. Warm water and mild dish soap handle most dirt and fingerprints. For hard water deposits, a diluted white vinegar solution is effective. Avoid abrasive pads or harsh chemical cleaners.
- Lubricate the Crank Mechanism Annually Apply a silicone-based lubricant (not WD-40) to the crank operator and hinges once a year to keep the operation smooth and prevent wear.
- Inspect Seals in Spring. After Ottawa’s freeze-thaw season, inspect the weatherstripping and exterior caulking for any cracking, gaps, or separation. Address any issues promptly before spring rains arrive.
- Keep the Sash Track Clear. Clear any accumulated dirt, leaves, or debris from the bottom of the frame to ensure the sash closes flush and the compression seal operates correctly.
- Clean Screens From the Inside Because awning window screens are located on the interior side — protected from the elements — cleaning is easy. Simply remove and wipe down with a damp cloth as needed.
Get Your Free Awning Window Quote in Ottawa
BestCan has been installing quality windows and doors across Ottawa and the surrounding area for years. Our team will assess your home, recommend the right product, and provide a clear, written quote with no pressure and no surprises.
📞 613-226-7611 Or fill out the form to request your free in-home consultation.
Frequently Asked Questions
Can awning windows be left open in the rain?
Yes — this is one of their primary advantages. The outward-projecting sash deflects rainfall away from the opening, so light to moderate rain won’t enter your home. It’s the reason awning windows are particularly popular in Ottawa where spring and summer rain is frequent.
Are awning windows energy efficient for Ottawa winters?
Absolutely. BestCan’s awning windows use compression seal technology — which creates a tighter seal than sliding or hung windows — combined with Low-E glass and argon fill as standard. Optional triple glazing takes performance even further.
Can awning windows be installed in a basement?
Yes. Awning windows are one of the most practical choices for basement walls. Their compact profile, crank operation, and outward-opening design make them well-suited to above-grade basement openings. In some configurations, they can also meet egress requirements for finished basement bedrooms — ask us for details.
What's the difference between retrofit and full-frame installation?
A retrofit installation inserts the new window into the existing frame — faster and less costly, but only suitable if your existing frame is structurally sound. A full-frame installation removes the old window and frame entirely, which is recommended for older Ottawa homes where frames may have moisture damage, rot, or inadequate insulation. Full-frame installation typically costs 15–20% more but provides superior long-term performance.
Do awning windows qualify for government rebates in Ottawa?
ENERGY STAR® certified windows may qualify under the Canada Greener Homes Affordability Program. Eligibility depends on household income and the specific products selected. Contact BestCan and we can guide you through what’s available at the time of your project.
How long does installation take?
Most awning window installations are completed within a single day. Larger projects or those requiring full-frame removal may take longer.
