Replacement Windows in Reston 

Are your windows outdated, drafty, or simply not performing the way they should at your home in Reston? Upgrading your windows is a smart investment that can improve the look of your home, lower energy costs, and increase comfort. At KCSI Construction, we install wood, vinyl, and fiberglass windows, giving you the flexibility to choose the best option for your style and needs. 

Choosing Your Replacement Windows 

Whether you prefer the warmth of wood, the low-maintenance appeal of vinyl, or the durability of fiberglass, new windows make a big difference in how your home in Reston looks and functions. 

  • Wood Windows: If you want a natural, timeless look, wood windows are a beautiful option. They provide excellent insulation and can be customized with various finishes. 
  • Vinyl Windows: A budget-friendly and low-maintenance option, vinyl windows are highly durable and available in a variety of colors and styles. 
  • Fiberglass Windows: Known for their strength and durability, fiberglass windows can withstand extreme weather conditions while maintaining their shape and integrity. 

How Long Do Windows Typically Last? 

The lifespan of windows depends on the material, climate, and quality of the window installation. Here’s a general guideline for how long different window types last: 

  • Vinyl Windows – Frequently last 20-30 years with proper care. These are a durable and low-maintenance option for many homeowners. 
  • Fiberglass Windows – Have a lifespan of 30-50 years due to their strength and resistance to temperature fluctuations. 
  • Wood Windows – Can last 30 years or more with routine maintenance, such as painting and sealing to prevent rot and moisture damage. 

Even the highest-quality windows won’t last forever. If your windows are older, here are key signs it’s time to contact our window installers in Reston, VA for replacements. 

Signs You Need Window Replacement 

Windows can last a long time, but after so many years, you may find yourself dealing with: 

Drafts & Higher Energy Bills 

If you feel a draft near your windows or notice rising energy costs, your windows may no longer be insulating your home properly. Over time, seals break down, allowing air to escape. New replacement windows with energy-efficient glass can help reduce heat loss and lower your utility bills. 

Difficulty Opening & Closing Windows 

Windows should open and close smoothly. If yours stick, refuse to stay open, or require extra force to operate, it could be due to frame warping, balance issues, or hardware failure. Our professional window installers in Reston, VA can assess whether a repair is possible or if a full window replacement is the best option. 

Condensation Between Glass Panes 

Fogging or moisture trapped between double- or triple-pane windows means the window seal has failed, allowing air and moisture inside. This reduces the insulating properties of the window, making your home less energy-efficient. 

Visible Damage – Cracks, Rot, or Warping 

Cracked or broken glass, rotting wood frames, or warping in vinyl windows are all clear signs that a window replacement is needed. Damaged windows compromise your home’s security and efficiency. 

Outside Noise is Louder 

If you’re noticing more street noise inside your home, it could be a sign that your windows have lost their insulating abilities. New replacement windows with multi-pane glass and proper sealing can significantly reduce noise levels. 

Water Leaks & Drafty Frames 

If you see water pooling near your windows after a rainstorm or feel cold air coming through the frames, your windows may no longer be providing a tight seal. Proper window installation is essential to prevent leaks that can lead to mold and structural damage. 

Windows are a major investment in your home’s comfort, energy efficiency, and security. While replacement windows are designed to last for years, they don’t last forever. Understanding the typical lifespan of windows and recognizing the signs that it’s time for a window replacement can help you avoid costly energy bills and potential damage to your home. 

Schedule Your Consultation Today 

At KCSI Construction, we want you to have smooth and stress-free window installation experience. That’s why we start every project with a consultation. 

During the consultation, we assess your current windows and discuss all available options, so you can have confidence in your decision. When you’re ready to move forward with our window company, you can count on us to take care of every detail to deliver the high-quality results you deserve. 

Schedule your consultation today to get started with new windows for your home in Reston! 

“KCSI recently replace a couple windows, a patio sliding door, and another exterior door. Their work was excellent, they were so respectful and clean, and we're very pleased with the overall experience! Mike (one of the owners) was so kind and easy to work with. He never tried to sell us anything, but simply explained what they could do and answered all the questions we had along the way.”

Brian B
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“Great work, but taking the time to write this review because of the exceptional level of communication from Mike and his team throughout the project and post the project when we've had questions about the windows or even other projects on our house. Mike's been available and a valued counsel as we navigate projects/budgets being first time home owners.”

Michael G

“KCSI recently replace a couple windows, a patio sliding door, and another exterior door. Their work was excellent, they were so respectful and clean, and we're very pleased with the overall experience! Mike (one of the owners) was so kind and easy to work with. He never tried to sell us anything, but simply explained what they could do and answered all the questions we had along the way.”

Brian B

“We hired KCSI to replace the roof, siding, windows and doors on our 50 year old house. They have just finished and we were very pleased with the final product and the entire process. Mike handled the job from the estimation to the installation. The job was completed in a week and a half and Mike made sure all of our concerns were addressed while the work was being done. We could not give KCSI a higher recommendation.”

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