Many window problems are caused by poor installation. This makes installation quality a crucial part of your windows’ long-term performance, and an important consideration when getting new windows. In today’s post, Renewal by Andersen® of Denver discusses how to spot signs of poor window installation — and what you can do to prevent them.

Signs of Poorly Installed Windows
Poor installation is common in DIY installations, and can be attributed to the lack of experience, proper tools and basic installation know-how. Some unscrupulous contractors may also resort to hiring inexperienced installers to cut costs. The following are some of the common signs of poor window installation:
- Gaps between the windowsill and frame indicate improper leveling. Gaps between any part of the window allow air leaks, which can lead to drafts and affect window energy efficiency.
- Leaking rainwater can be caused by a number of factors, including poor window construction and not properly sealing the transition between the wall opening and the window frame.
- Windows that are difficult to open and close can be attributed to faulty or incorrectly adjusted hardware, thermal expansion and contraction, or poor installation. Most of the time, hard-to-operate windows can be fixed with a few adjustments.
- Messy window seals are not aesthetically pleasing and are a reflection of the installer’s skill. In some cases, poorly applied seals can affect the window’s energy performance and develop into leaks over time.
Leave Installation to the Pros
Many people resort to DIY installation or the contractor with the lowest estimate because of the lower upfront cost, but that is just about its only advantage. When installed by trained professionals, your new windows can help you save on energy bills and avoid costly repairs. A professional installation can also help protect your property from damage caused by leaks and uneven temperatures.
Renewal by Andersen installers undergo strict training and certification before they can work on our clients’ windows. This helps make sure that every single window we install will meet or exceed our quality standards. In the unlikely event that our work does not meet these standards, our limited warranty includes a two-year installation coverage.
Renewal by Andersen® of Denver provides window installation services to customers in Denver and Colorado Springs, CO, as well as the surrounding communities. Give us a call at (303) 968-3287 or (719) 313-5403 to talk to one of our design consultants. You may also fill out our contact form to schedule an appointment.