Bright replacement window with flower vase by MSSV Construction

6 Signs It May Be Time to Replace Your One-over-One Windows

One-over-one windows, featuring one section of glass in the upper sash and one in the lower sash, are a familiar feature in many of Denver’s older homes. Although their classic design is not a reason to replace them, their condition could be.
 

Look for these warning signs:

• Drafts that continue after window sealing
• Soft, rotting, or warped window frames
• Windows that stick, will not close, or cannot lock securely
• Cracked glass or water entering around the frame
• Fog or moisture trapped between the glass in insulated windows
• Rooms that remain noticeably hotter or colder near the windows
 
Windows can be responsible for up to 30% of your home’s heating and cooling costs. Small issues like drafts or sticky windows can sometimes be fixed with a quick repair. But if you’re still feeling a chill after sealing, or you spot rotting frames or moisture between the panes, it might be time to think about a full replacement for better comfort and efficiency. If it’s time for new windows, you don’t have to give up that classic one-over-one look. Modern options let you keep the style you love while adding insulated, energy-saving glass.
Old wood-framed window during a home renovation project
Whether you prefer wood, vinyl, or fiberglass, you can choose features like double-hung or casement styles, argon gas fills, or triple-pane glass to boost comfort and savings. The right windows bring together timeless style and today’s performance. While you could try a DIY approach, working with a pro like MSSV Construction means your windows will be installed right, so you get the best in safety, efficiency, and long-term value. Energy-efficient windows can also help lower your utility bills. Not sure if your windows need a quick fix or a full replacement? Reach out to MSSV Construction for a professional assessment. We’ll take a look, walk you through your options, and help you find the best fit for your home and your budget. Let’s make your home more comfortable and efficient. Schedule your window assessment with us today.

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