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4 SIGNS OF POORLY INSTALLED WINDOWS

Correctly installed windows operate smoothly and efficiently. A fully functional window can boost your home’s curb appeal and energy efficiency. Working with a fly-by-night installer instead of a licensed contractor for your window replacement can, however, result in costly repairs or premature replacement.

4 Signs Of Poorly Installed Windows

Renewal by Andersen® of St. Louis, a premier windows installation company in the area, shares four telltale signs of poorly installed windows.

1. Visible Gaps

There’s no excuse for windows that don’t fit, most especially when you paid a contractor to finish the job for you. Incorrect window measurements can create gaps between the frame and sill or wall. This can compromise your windows’ ability to be airtight, which, in turn, reduces your home’s energy efficiency.

2. Drafts

Your casement windows are part of your home’s thermal envelope; they help keep your living space cozy all year round. Poorly installed windows, however, can cause drafts and lead to a sharp increase in your utility bills. In fact, drafty windows can result in a 10% to 15% increase in your energy bills.

3. Leaks

Water has a way of seeping through even the tiniest holes, which is why you need to have perfectly fitted windows. Fortunately, Renewal by Andersen provides custom-built replacement windows based on the existing wall openings of your home. This prevents window leaks that can damage other components of your interior space.

4. Difficulty in Operation

Your new windows must smoothly open and close. There’s no reason for it to squeak or get stuck unless it’s improperly installed. Hard-to-operate windows often have a sash that is slightly smaller or bigger than the rest of the window.

At Renewal by Andersen of St. Louis, we install energy-efficient windows to help drive your utility costs down. Call us today at (314) 310-3636 to learn more about our products and services. We serve residents of Missouri, including St Charles.

Reviews

"Have nothing but great things to say about the window installation done today by John Hutchinson with Renewal by Andersen! He was friendly, personable and professional and did a great job installing. He did a great job of putting down roller pads and tarps with next to zero clean up. Would highly recommend them for any window replacement needed!"

Mark V.
Jun 26, 2025

"We had our new Renewal by Andersen windows installed on June 5th & 6th, 2025 and we LOVE them! The quality, beauty, and functionality are best-in-class! The whole experience from dinner presentation at Lazy River Grill, the initial in-home sales consultation and measurement, the regular communications from the salesman and concierge, and the installation team’s professionalism and skills made the process so seamless. This is the second home we have opted for Renewal windows and doors and have been delighted both times! Thank you Renewal by Andersen STL! "

Jeff C.
Jun 7, 2025

"I had an excellent experience with RbA STL. Our designer, Courtney, was great and the finished product is awesome. The installation was easy and the gentlemen left our home cleaner than they found it upon entering. I would recommend RbA STL - you’ll get tired from their constant contacts, and that’s a GOOD thing!"

Jeramy D
Jun 3, 2025

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