Thinking about replacing your windows—but not sure where to start? You’re not alone. Between all the styles, materials, features, and contractor options, it’s easy to feel a little overwhelmed. But here’s the good news: asking the right questions up front can turn that stress into confidence—and help you make a smart, long-term investment in your home.
Whether you’re dreaming of more natural light, better energy efficiency, or just a fresh new look, your window replacement journey starts with a few key decisions. And we’re here to help you navigate them with clarity.
From how long windows really last to whether it’s okay to install them in winter, we’ll walk you through the most common questions homeowners have—so you can feel informed, empowered, and excited about what’s next.
Answers to Common Questions about Investing in New Windows
How Long Do Replacement Windows Last?
Most high-quality windows last 20–40 years depending on the material they are made of and how well they are installed. Two elements are vitally important to how long your windows will last.
- Window material: Wood offers classic charm but comes with high maintenance. Vinyl can be insulated for greater energy efficiency, but fiberglass lasts 8 times longer than vinyl. Fiberglass is known for its beauty, durability, and longevity.
- Window installation: Take your time finding the right contractor for optimal installation.
Will New Windows Improve My Home’s Energy Efficiency?
Yes, new windows will reduce drafts and heating and cooling costs. They’ll also decrease wear and tear on your HVAC unit. Look for ENERGY STAR®-rated windows to ensure you will enjoy energy savings. The National Fenestration Rating Council (NFRC) rating label can also help you choose the best windows. It includes the results of measurements based on:
- U-Factor – This tells you how well your windows will keep heat indoors. Ratings range from .20 to 1.20. The lower the number, the better—particularly in cooler climates.
- Solar Heat Gain Coefficient (SHGC) – This describes how well windows keep heat out. It ranges from 0 to 1 with lower numbers indicating higher efficiency. This is most important in warmer climates.
What Is the Difference Between Full-Frame and Insert Replacement Windows?
Full-Frame Window Replacement – This is a more involved replacement window option. It includes both the window frame and sash.
Insert Replacement Windows – This keeps the existing window frame and replaces just the sash.
Can I Replace Windows During the Winter?
Yes, professional contractors use techniques to minimize heat loss during cold weather installations.
Will New Windows Reduce Outside Noise Intrusion?
Yes, double- or triple-pane windows with insulated frames and proper sealing will decrease noise intrusion from the outdoors. While no windows offer a soundproof interior, noise-reducing windows will create a more pleasant atmosphere inside your home. Sounds from barking dogs, heavy equipment, planes, trains, vehicles, and more will be minimized when you invest in replacement windows.
How Long Does a Window Installation Take?
The length of time it takes to have your windows installed depends on the condition of the window openings and the type of window replacements you choose. In general, it takes about 30–60 minutes per window.
Do I Need to Replace All of My Windows at Once?
No, you don’t have to replace all your windows at the same time. In fact, many homeowners replace them in phases based on their budget and need. While replacing all your windows at once will save you some time and money, you always have the option of doing it in phases.
Are Vinyl Windows Better Than Wood or Fiberglass?
The best material choice for your windows depends on your priorities. If you’re looking for a cost-effective choice for a starter home or rental property, vinyl may suffice. If you want the genuine look of wood, and you’re willing to take time for its high maintenance needs, wood may work for you.
If you’re looking for long-lasting windows that deliver energy efficiency, style, and durability, fiberglass is a smart option. Fiberglass is a manmade material that provides exceptional insulation and stability very similar to window glass, so the glass and fiberglass frame expand and shrink at similar rates, resulting in superior durability.
Can I Change the Style or Size of My Windows During Their Replacement?
Yes, custom window sizing and layout changes are possible, but may cost more and require extra framing. Work with an experienced contractor to plan the optimal window styles and sizes for your home. You also have the option of creating a window where there wasn’t one before, bringing increased natural light into your home and boosting its overall value.
Will New Windows Increase My Home’s Value?
Yes, windows will significantly increase your home’s value! Potential buyers appreciate the eye-catching curb appeal, increased indoor comfort, and exceptional energy efficiency replacement windows offer, making them a good selling point for your property.
What Type of Window Styles Do I Have to Choose From?
- Double-Hung Windows
- Casement Windows
- Awning Windows
- Bay Windows
- Bow Windows
- Picture Windows
- Specialty Windows
What Options Are Best for Window Glass?
Quality windows have 2–3 panes of glass separated by space filled with inert (argon) gas and then sealed. This decreases the amount of heat loss through your windows and limits condensation or frosting. Window glass is treated with a low-emissivity (Low-E) coating that blocks UV radiation and heat transfer.
Do You Need a Contractor to Install New Windows or Can You DIY?
To get the optimal long-term outcome, window installation is best left to the pros. By hiring a window contractor, you’ll save time, money, and frustration—and your warranty will be intact!
Entrust Your Window Installation to St. Louis’ Finest Window Contractor and Enjoy Lasting Results
You can strengthen and beautify your St. Louis area home with our window installation services. We offer durable fiberglass Infinity from Marvin Windows. At Replacement Windows by Lakeside, our expert team carries out your window installation with meticulous attention to detail, ensuring a seamless process, while keeping you updated every step of the way. You’ll delight in your home’s transformation and revel in the beauty and increased efficiency of your new windows, knowing you’ve chosen the best products and services for your home!
