Your windows play a vital role in protecting your home, maintaining energy efficiency, and enhancing curb appeal. Over time, however, wear and tear can cause common window issues that lead to discomfort, higher utility bills, or even structural damage.

At Modern Day Window & Door, we are happy to help you identify and resolve window problems quickly and professionally. Below are the most common issues we see — and how we can help fix them.

1. Wood Rot

What It Is:
Wood rot is a form of decay caused by moisture exposure over time. It weakens wooden window frames and sills, making them soft, crumbly, and structurally unsound.

Signs to Look For:

• Soft spots in the frame or sill
• Peeling paint or bubbling finish
• Discoloration or mold around the edges
• Musty odor near the window

Why It Matters:
Rot can spread and compromise your window’s structure, energy efficiency, and appearance. Left untreated, it may also lead to mold or insect infestations.

2. Difficult Operation

What It Is:
Windows that stick, jam, or won’t open or close properly are more than a nuisance — they’re a safety and energy concern.

Causes Can Include:

• Swollen wood from humidity
• Warped frames
• Broken balances or hardware
• Dirt or paint buildup in tracks

Why It Matters:

Poorly operating windows can prevent emergency egress, reduce ventilation, and lead to further damage from moisture intrusion.

3. Foggy Glass / Seal Failure

What It Is:

If your double- or triple-pane windows appear foggy or have condensation trapped between the panes, the insulating seal has likely failed.

Signs to Look For:

• Moisture or streaks between the panes
• Glass appears dirty even after cleaning
• Reduced energy efficiency

Why It Matters:
Seal failure reduces insulation, allowing heat transfer and increasing energy costs. It also impacts the look and clarity of your windows.

4. Warped Frame

What It Is:
Window frames can warp due to moisture, heat exposure, or poor installation. This causes the frame to bend, twist, or pull away from the opening.

What You Might Notice:

• Gaps between window sash and frame
• Window won’t close evenly
• Air or water infiltration

Why It Matters:
Warped frames compromise energy efficiency and security. They also affect the structural integrity of your home’s envelope.

5. Drafty Windows

What It Is:
Drafts are typically caused by poor seals, aging materials, or improper installation. You’ll feel air movement near the window — even when it’s closed.

How to Spot It:

• Feeling cold spots in winter or hot spots in summer
• Higher energy bills
• Light visible around the frame or sash

Why It Matters:
Drafty windows lead to major energy loss, make your HVAC system work harder, and create uncomfortable indoor temperatures.