When Should You Replace Windows?

February 9, 2026

Replacing your windows isn’t something most homeowners think about every day, until drafts, rising energy bills, or visible damage make it impossible to ignore. Knowing when to replace your windows can help protect your home, improve comfort, and avoid costly repairs down the road.

In this guide, we’ll walk through the most common signs that it’s time for a window replacement and the importance of hiring a window contractor.


Your Windows Are 15–20+ Years Old

Most residential windows are built to last between 15 and 25 years, depending on the materials used, the local climate, and how well they’ve been maintained. If your windows are approaching or beyond this age range, replacement is often the smartest long-term investment.


You Feel Drafts or Notice Temperature Changes

Drafty windows are a common sign that replacement may be needed. If certain rooms feel colder in winter or warmer in summer, your windows may be allowing outside air to enter and conditioned air to escape. This forces your HVAC system to work harder and makes your home less comfortable overall.

 

Condensation Between Glass Panes

Moisture or fog trapped between double- or triple-pane windows indicates seal failure. Once the seal is compromised, the window loses its insulating properties and can no longer perform efficiently. This issue cannot be fixed through cleaning or resealing, which means full window replacement is usually the only effective solution.


Difficulty Opening, Closing, or Locking Windows

Windows should operate smoothly and lock securely. If they stick, won’t stay open, or no longer lock properly, it may be due to warped frames, balance system failure, or structural settling of the home. These problems aren’t just inconvenient; they can pose safety and security risks.


Visible Damage or Deterioration

Cracked glass, rotting wood, peeling frames, or signs of water damage are strong indicators that your windows need to be replaced. Damaged windows can allow moisture intrusion, encourage mold growth, and lead to further structural issues if left unaddressed.


Rising Energy Bills

Unexplained increases in energy bills often point to inefficient windows. Older or damaged windows allow heat loss in winter and heat gain in summer, making your heating and cooling systems work overtime.


Why Work with Professional Window Contractors?

The quality of window installation is just as important as the quality of the windows themselves. Experienced window contractors ensure accurate measurements, proper sealing, and compliance with local building codes. Poor installation can lead to drafts, leaks, and premature window failure, even when high-quality products are used.


Contact Us Today for Window Replacement Services

If you’re experiencing any of these issues, it may be time to consider professional window replacement. New windows installed by trusted professionals can improve comfort, increase energy efficiency, and enhance the overall value of your home.


At ASAP Glass, we provide dependable window replacement services. Whether you need a single window replaced or a full home upgrade, our window contractors are ready to help. Contact us today to schedule a consultation and see how new windows can transform your home. We proudly serve the Bradford, PA; Warren, PA; Hamburg, NY; Hornell, NY; Jamestown, NY; Olean, NY; and West Seneca, NY areas. 

Storefront Glass: Making a Good First Impression

October 20, 2025
Enhance your curb appeal and attract more customers with quality storefront glass. Learn how it reflects professionalism. Contact ASAP Glass of Olean today.

How to Prepare Your Home for Summer with Windows

By lemaster • June 1, 2020
While the summer months may not stick around WNY for long, the warm weather and temperature increases are sure to affect homeowners across the region.

Is It Time For A New Roof?

By lemaster • April 14, 2020
As much as we’d like it, roofs don’t last forever. The typical shelf life of an asphalt roof is around 20 years. At that point your roof may be posing problems that have started to impact the interior of your home. In order to maximize the benefits of having a solid roof over your heads, check out the 5 indicators below that may signal it’s time to invest in a replacement.

Garden Oaks Hardie Siding

By lemaster • January 27, 2017
A two story 1940’s home nestled in the upcoming Garden Oaks subdivision recently had an exterior makeover from Allstate Siding & Windows.

Traditional Home Makeover

By lemaster • January 27, 2017
In a quaint neighborhood nestled on a golf course surrounded by trees is a 1978 traditional two-story home in Conroe, TX. The 3200 sq ft home sits on 1/3 an acre. The original home exterior included masnite hardboard siding and aluminum windows.

Houston Heights

By lemaster • January 27, 2017
A beautiful home located in the Heights Historical District brought the “WOW FACTOR” with the bold bright color. James Hardie Siding was installed and the shutters were taken down and painted white to tie into the windows, porch and front door. This is truly a historical house in Houston!

Jersey Village Home

By lemaster • January 27, 2017
It’s all in the details; with this traditional home nestled in the city of Jersey Village, Texas. The original home’s exterior was masonite hardboard siding and aluminum windows. We installed the double pane Home Craftsmen windows by Ply Gem with the white frame.

All About Vinyl Windows

By lemaster • January 27, 2017
When homeowners are considering new windows, vinyl windows are often the go-to choice. They are a popular option on the market and come with several advantages over other window options. Vinyl windows are made of a plastic material, called PVC. This allows them to be more cost-friendly than other options, and deflect issues that other window types may face. So, why should you consider vinyl windows as your new or replacement windows? Let’s begin with the benefits.

Which replacement windows should you choose?

By lemaster • January 27, 2017
When it’s time to choose new replacement windows for your home, it can sometimes be difficult to determine which would be the best fit. Different types of windows are each made up of unique features that provide solutions to a variety of conditions. The professionals at Allstate Windows are here to advise you on some things to consider when choosing replacement windows, to ensure that you will choose the best suited option for your home. Things to consider when choosing replacement windows: Price. When choosing replacement windows, keep an open mind about price – choosing the most expensive option doesn’t always mean it will be the best option for your home. Depending on the climate in which you live and specific features of the house, an option made of a particular material might do the job best, but be cheaper than others. Climate. As mentioned above, the climate in which you live can be a huge determining factor of what type of replacement windows would be best. There are certain kinds that are better at keeping heat in and cool air out, and vice versa, as well as others that are especially wind resistant. Window Style. There are several different styles of windows available on today’s market, including: single hung, slider, double hung, casement, and more! It’s important to know what type of features you want in a window, so a professional can advise you as to which style would best suit these needs. If you are in the process of choosing replacement windows for your home in the Houston, TX area, contact Allstate Siding and Windows today! Our team of window experts is waiting to help you make the best decision.