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Key Considerations When Sizing Replacement Windows

Replacing old and damaged windows is one of the best investments you can make as a homeowner. Getting a correctly sized set of replacement windows gives your home maximum energy efficiency and aesthetic value. To find the right windows, renowned window and roofing contractor Window World of Boston lists several key considerations when sizing your replacement windows.

Key Considerations When Sizing Replacement Windows


The size of your old window is a good basis for the size of the new ones you’ll purchase. To ensure you get the best fit, take accurate measurements of the inside and outside dimensions of your windows. Include its sill height and frame widths to ensure a well-fit set of replacement windows. Also, measure the length between the top of the lowermost sill of the window excluding trim or casing. Lastly, see if your current treatments fit properly within the new window size. 

Take note that windows are usually measured in metric units, so convert any imperial scale units properly.

Window Style

Your window’s style determines the size that can bring out its beauty and achieve optimal functionality. For instance, double-hung windows are typically large and have the same height along both openings. On the other hand, awning windows are commonly small, open predominantly upwards and must have enough space to cover the tilt mechanism. You can also ask a professional window and roofing contractor to find the perfect style for your interiors and exteriors.

Your Climate

When selecting replacement windows, consider your local climate and the weather patterns you typically experience. You can choose to use double or triple-glazed windows for your home. These multi-pane windows have varying levels of energy efficiency that can help reduce heating and cooling costs while making your home more comfortable year-round. Double or triple-paned windows offer superior insulation values compared to single-pane options while also providing additional noise reduction benefits.

Window Type

The window type has a great impact on its size. Standard and sliding windows require a certain minimum width to open, whereas casement windows need space for crank handles or folding mechanisms. Your window and roofing company can measure these aspects accurately to ensure your window will operate well after installation.

Dimensions of Your Room

The dimensions of your room are a huge factor in selecting the right windows. Consider larger, wider windows to brighten your space, while rooms with higher ceilings may require taller windows to achieve excellent proportions.

Frame Material 

You can choose between a deep or shallow frame material profile. When framed, a deeper profile will require more space around the windows, while thin frames will need otherwise. Lastly, prolong your new window’s lifespan by choosing high-quality frame materials that won’t warp or crack for decades. You can ask your window and roofing company for frame suggestions that last for a long time.

Natural Light Levels

When deciding on window size, pay attention to how much natural light enters your rooms. A bathroom can have large windows with acid-etched or frosted glass to enhance lighting while maintaining privacy. Your hallway can benefit from various window types that accent its aesthetic while brightening the space. You can ask a window and roof replacement expert to help you find the best windows for optimal natural light.

Benefits of Getting New Windows

A new set of windows is always beneficial. They can make your space look modern and inviting, improving energy efficiency and home comfort. Here are the many benefits of owning new windows.

Energy Efficiency

New windows can do wonders for energy efficiency. Multi-pane window glass are designed to keep the warm air out in the summer months, trap hot air inside during winter times and help lower heating and cooling bills. To optimize your home’s energy efficiency further, consider improving attic and wall insulation and using UV-reflective materials for your upcoming roofing replacement.

Improved Home Value

Energy-efficient and beautiful windows can increase your property value. Many buyers are looking for homes with practical energy-saving features, making new windows a great investment for those looking to sell their properties.

Increased Comfort

New windows have features that improve overall home comfort levels. Window manufacturers continue to apply their research on longevity, energy efficiency and reliability, making their new products worthwhile investments.

Other Things to Consider When Buying Windows

Aside from style, size and materials, look into window glass options. Look for multi-pane windows that can reduce energy bills and provide comfort. Furthermore, consider having laminated safety or security glass for your windows to ensure your safety.

Lastly, make sure that the windows you choose are designed to last. Durability is crucial to getting your money’s worth out of them and keeping them in good condition for years. Also, look for manufacturers with long-standing warranty options and certified technicians who can install their quality windows for you.

Here at Window World of Boston, we can help you find the perfect windows for your home. Our team of window installation and roofing replacement experts can install your new windows perfectly and within the manufacturer’s warranty. Call us at the following numbers (781) 262-3925 (Woburn), (781) 343-7129 (Pembroke) and (508) 845-6676 (Shrewsbury). You can also fill out this contact form to reach us.

Services We Offer
Window World of Boston has an A+ BBB Rating and offers industry-leading solutions for replacement windows, doors, siding and more. We follow through every job from start to completion while our friendly, knowledgeable staff is there to answer your questions and provide any level of customer support you need. Window World is committed to providing the highest customer satisfaction.
Best Company!
Window world is the best company I have ever dealt with. Everything is explained in full and the people are courteous and informative. The installer did a beautiful job...
Sharon R
Pleasantly, Stress Free
My entire experience with Window World was pleasantly, stress free. This was the fourth company I had come to my home to give me an estimate. When the sales rep., David...
Susan Rocco
Extremely Positive Experience
We had nothing but an extremely positive experience with Window World. From the sales people to the installation crew, everyone was very nice, very helpful, and they we...
Howard Kelman
23 Windows Installed
Excellent. I had 23 windows installed and wrapped trim in not even two days. The installation team was professional. I was extremely happy with the quality of the produ...
Anne C
Professional & Courteous
My salesman from Windows world was great! He knew that I knew what I wanted and you didn't try and deter me from it. He listened and got through the whole sales process...
Cheryl Vassil
Very Fair Pricing
Excellent experience. Very fair pricing, great quality windows, and everyone who I spoke to or who came here to do work was extremely friendly. I really can’t say eno...
Lindsay B.
Window world was great, from the consultant Ron Hajj to the installers Quentin and Barry I cannot say enough. Perfection, I would definitely recommend Window World to anyone
Jeff Russell
Warranty is Outstanding
I went with Window World after getting a few other quotes but I was referred to them from a friend. The experience was great from the quote to the finished results. Mat...
Tanya Backer
I Would Recommend
The installers arrived at my house on time, and after introducing themselves got right to work. They were very knowledgeable, professional and willing to answer any que...
Ann Mccabe
Difference in the Temperature
Extremely friendly crew and customer service is easy to work with. I can already feel a difference in the temperature of our house.
Nicole Cronin
Caring About Customers
The installers were most efficient, friendly, polite, thorough. They answered all of my questions and engaged in conversation while they kept working. They made sure ev...
John Kurdzionak