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The Not-So-Secret Guide to Standard Window Sizes (and Why You Should Care)
Let’s be real—windows aren’t exactly the sexiest topic. But hey, they’re kinda important, right? Whether you’re replacing that drafty basement window or upgrading to sleek energy-efficient windows for your entire home, understanding standard sizes is the secret sauce to avoiding headaches (and wallet-aches). Trust us, we’ve seen it all at A1 Windows and Doors here in Mississauga. So grab a coffee, and let’s nerd out over window dimensions like the pros we are.
Why Standard Sizes Matter More Than You Think
Ever measured a window opening only to realize nothing fits? Yeah, that’s the universe telling you to stick with standard sizes. Here’s the deal:
- Cost savings: Custom windows = $$$. Standard sizes? More like “budget-friendly magic.”
- Faster installation: No waiting weeks for a special order. We’re talking same-day service for many homes in Mississauga, Oakville, and Milton.
- Resale value: Future buyers won’t side-eye your “unique” window choices.
Pro tip: If your home was built after the ‘80s, chances are it uses standard sizes. But older homes? They’re like snowflakes—no two are alike. (Cue the custom-order drama.)
The Most Common Window Types (and Their Sizes)
Let’s break it down. Here’s what we install daily at A1 Windows and Doors, whether it’s a cozy basement window replacement or a full-blown commercial windows project:
Double-Hung Windows
The classic. Perfect for 90% of homes.
- Standard widths: 24”, 28”, 32”, 40”
- Standard heights: 36”, 44”, 48”, 60”
FYI: These are the jeans of windows—reliable, timeless, and they go with everything.
Casement Windows
Crave fresh air? These crank-open beauties are your jam.
- Common sizes: 18” x 24”, 24” x 36”, 28” x 54”
P.S. Casement window replacement is our #1 request in Oakville—blame the lake breeze.
Sliding Windows
Ideal for tight spaces (looking at you, basement window replacements).
- Typical dimensions: 36” x 24”, 48” x 48”, 60” x 24”
Picture Windows
Want a view without the ventilation? Go big or go home.
- Standard: 48” x 48”, 60” x 60”, 72” x 72”
“But What If My Windows Aren’t Standard?”
Hey, we get it. Maybe you live in a century home where “standard” means “whatever the builder had leftover.” That’s where A1 Windows and Doors shines. We’ve tackled everything from quirky custom jobs in Milton’s heritage districts to energy-efficient window and door replacements in Mississauga’s newest subdivisions.
When to go custom:
- Your window opening is wonky (thanks, settling foundations).
- You’re married to a specific style, like arched tops or hexagons.
- You want commercial windows that match your brand’s aesthetic.
Just remember: Custom = higher price tag. But IMO, it’s worth it if you’re staying put long-term.
The Cost Factor: How to Avoid Sticker Shock
Let’s talk numbers—because nobody likes surprises. Here’s a quick cheat sheet for window replacement costs in the GTA:
| Window Type | Average Price (Installed) |
|---|---|
| Double-Hung | $400 – $800 per window |
| Casement | $500 – $900 per window |
| Sliding | $450 – $850 per window |
| Picture | $600 – $1,200 per window |
Why the range? Materials (vinyl vs. fiberglass), energy efficiency ratings, and whether you’re doing a single window replacement or a whole-house refresh.
Hot take: Skip the “cheapest” option. Energy-efficient windows might cost 10-15% more upfront, but they’ll slash your heating bills faster than you can say “Mississauga winter.”
4 Burning Questions About Window Sizes (Answered)
-
“Can I install standard windows myself?”
Sure—if you enjoy YouTube tutorials and regret. For most folks, hiring pros like A1 Windows and Doors means avoiding leaks, drafts, and that one crooked window you’ll resent forever. -
“How long does window replacement take?”
Standard install? 1-2 days for a whole house. Basement window replacement? Often done in a morning. We’re speedy because, well, Canadians have better things to do than stare at scaffolding. -
“Are ‘best windows in Canada’ just a marketing gimmick?”
Not entirely. Look for ENERGY STAR® certification and local reviews. (Shameless plug: We’re rated #1 for window and door replacement in Mississauga. Just sayin’.) -
“Should I replace doors and windows at the same time?”
If your budget allows, 100%. Matching styles boost curb appeal, and you’ll only deal with construction chaos once.
Final Thoughts: Let’s Get You Sized Up
At the end of the day, windows are like a good haircut—nobody notices when it’s perfect, but everyone cringes when it’s wrong. Whether you’re in Oakville craving casement windows or a Milton homeowner needing basement window replacements, A1 Windows and Doors has your back.
Why us?
- We’ve been nailing window installations since before “near me” was a search term.
- No pushy sales pitches—just honest advice (and maybe a few bad jokes).
- Free quotes that won’t ghost you.
Ready to ditch the drafts? Hit us up. Let’s make your home the envy of the block—one perfectly sized window at a time. 😉
P.S. Seriously, though—measure twice, order once. Your wallet will thank you.
