Why are my new windows harder to open than my old ones?

New windows are often harder to open initially due to tight seals, adjustment periods, and different operating mechanisms compared to older windows. This is usually temporary and can be resolved with proper adjustment and break-in time.

Modern windows are designed with much tighter seals than older windows to improve energy efficiency. These weatherstripping seals create more resistance when opening and closing, especially when the windows are brand new. The rubber and vinyl seals need time to compress and conform to the window frame, which typically happens over the first few weeks of use.

The operating hardware on new windows may also feel different from what you're used to. Modern window cranks, locks, and sash balances are engineered for smooth operation but often require a different technique than older windows. If your old windows were single-hung with traditional sash cords, switching to modern double-hung windows with spring balances will feel quite different initially.

In Ottawa's climate, temperature changes can significantly affect window operation. New vinyl or composite windows expand and contract more noticeably than older wood windows, making them temporarily harder to operate during extreme temperature swings. Cold weather can make seals stiffer, while hot weather can cause slight frame expansion.

Several factors could indicate the need for professional adjustment. If windows remain difficult to operate after 2-3 weeks, the installation may need fine-tuning. Common issues include improper frame squaring, over-tightened hardware, or debris in the tracks. Licensed installers should return to make these adjustments under warranty.

Most window operation issues resolve naturally with use and proper maintenance. Clean the tracks monthly, lubricate moving parts with silicone spray (never oil-based products), and operate windows regularly to keep seals flexible. If problems persist beyond the break-in period, contact your installer for a warranty adjustment - reputable contractors will ensure your windows operate smoothly.

For professional window installation with proper adjustment and warranty support, Ottawa Window Pros connects you with experienced installers who ensure optimal window performance from day one.

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