5 Mistakes to Avoid When Choosing New Windows for Your Home

June 2, 2025 by

ubadmin

Choosing inappropriate windows can cost you comfort, money, and aesthetics. Here’s how to avoid the top five mistakes.

Did you know? Upgrading your windows to ENERGY STAR-certified models that are appropriate for your climate zone can help you better regulate your temperatures and keep your home more comfortable (Source). That’s a good enough reason to check into suitable replacement windows Ontario has to offer.

Unfortunately, many homeowners make unnecessary mistakes when shopping for new windows. These mistakes can lead to energy loss, poor design choices, and wasted money.

Let’s ensure this doesn’t happen to you.

Smart Guide to Picking the Right Replacement Windows in Ontario

Replacement Windows in Ontario

Purchasing new windows is an expensive decision. It’s not all about style or aesthetics: it is also about performance, price, and installation. Before you begin to shop for windows, learn how to avoid these five costly mistakes so you end up with the best windows for home use and a more energy-efficient, beautiful space.

Mistake 1: Ignoring Energy Efficiency Ratings

It can be tempting to get caught up in design, but a window’s performance is more important than its design.

If you are looking for modern exterior windows, look for energy-efficient features such as:

  • Low-E glass – Reflects heat while still allowing natural light.
  • Argon or krypton gas fills – Insulates better than air.
  • Double or triple glazing – Provides extra protection.
  • ENERGY STAR label – Meets government-approved standards.

Make sure to check:

  • U-Factor: Indicates how well a window prevents heat from escaping. Lower is better. 
  • SHGC (Solar Heat Gain Coefficient): Lower numbers mean letting in less unwanted solar heat gain. 

Windows that receive poor ratings can leak heat in the winter and allow heat gain in the summer, raising your utility bill. 

Mistake 2: Choosing the Wrong Window Styles for the Home

Window Styles for the Home

All windows aren’t created equal. Picking the wrong window styles for the home can lead to poor airflow, awkward layouts, or even water damage.

Here’s a breakdown of standard styles and when to use them:

Window StyleWhere It Works BestWhy Choose It?
Double-hungBedrooms, family roomsEasy to clean, classic appearance
CasementKitchens, bathroomsCranks open, seals tightly
PictureLiving areas, stairwellsBright, fixed for a scenic view
Bay/BowFront exterior wallsElegant, adds space and value
AwningBasements, bathroomsHinged at the top, suitable for rain
SliderPatios, wide openingsSimple and space-saving

Choose styles that match both the purpose of the room and the architecture of your home. Mixing a few can work, but stay consistent with trim and frame colour.

Mistake 3: Going Cheap Instead of Going Smart

Let’s be honest. We all want to save money. But when it comes to windows, the most inexpensive options can ultimately cost the most.

Low-cost window options can:

  • Fog up fast
  • Let cold drafts in
  • Break easily
  • Void warranties

Invest in durable, low-maintenance materials like: 

  • Vinyl – Inexpensive and weather resistant
  • Fibreglass – Strong and energy-efficient
  • Composite – The best of durable and beautiful.

If you’re not ready to maintain wood frequently, especially in Ontario’s fluctuating climate, you may want to avoid it. 

Bonus Tip: Always ask for the window’s NFRC label. This label provides performance ratings to support fair comparisons of brand performance.

Mistake 4: Forgetting the Front Windows on Houses

Curb appeal is everything. And your front windows on houses are a significant part of that first impression.

Choose the wrong product and your home will look outdated, or worse, even the value.

Here is how to get it right:

  • Match the shape of your windows to your home. Arched for classical, clean lines for modern.
  • Use bay and bow windows to allow the front to be more inviting.
  • Use architectural grilles or window boxes to add charm.
  • Match the colours on frames and trims to the siding and roof colours.

Mistake 5: DIY or Unqualified Installation

A window, no matter how good, will perform poorly if not properly installed.

While performing a window replacement in Ontario, here are a few points where things can go wrong if a pro isn’t consulted:

  • Gaps around the frame
  • Water leaking in
  • Draftiness and less energy efficiency
  • Warped frame

Professional installers:

  • Use correct sealing techniques
  • Install windows square or level
  • Follow local building codes
  • Provide warranties

Important Tip

  • Want your home to feel warmer in winter and cooler in summer?
  • Want attractive window styles that will make your neighbours jealous?

Don’t wait for draughty, outdated windows to be a problem. Get ahead of the issue today. The right replacement windows in Ontario can transform your whole living experience.

Be smart. Be stylish. Be energy efficient!

Choose the Right Window with Confidence!

Choosing windows is a big decision, but it does not have to be stressful! With professional guidance from United Builders, you can confidently choose stylish, durable, and energy-efficient windows. 

Whatever your needs, we will meet your requirements for style, quality, and price with top-quality modern exterior windows and certified installation that will protect your investment. Want to take the plunge and upgrade? Visit our website or contact us to book your free consultation today!

FAQs

1. What is the best type of window for energy efficiency?

Casement windows with Low-E glass and argon gas filling are usually the most energy efficient because they seal tightly when they are closed.

2. How long can I expect windows to last in Ontario?

Quality windows can last 20 to 25 years, especially if professionally installed and serviced.

3. Can I have windows installed during the winter?

Yes. Windows can be installed during the winter. Installers temporarily seal the windows and work in sections. Some companies even offer winter discounts!

Modern exterior windows are often very large interior picture or casement windows with skinny black frames and simple lines.

5. Are bay windows worth it?

Absolutely! Bay windows add style, light, space, and boost curb appeal, especially on house front windows.