Interior Window Trim Replacement in Lonsdale, MN
The Challenge: Resolving Gaps and Unfinished Details
In many homes, window trim is one of the first areas to show wear or reveal original installation shortcuts. This Lonsdale home had existing window trim that was deteriorating, with visible gaps and an unfinished appearance that allowed drafts to seep in and detracted from the room's aesthetic. Without a tight seal, these gaps can lead to minor energy loss and expose the inner wall to dust and moisture.
The TrueMark Solution: Custom-Crafted Character
At TrueMark Repair, we focus on restoring the original character of a home while improving its durability. We began by removing all damaged and outdated casing. Instead of using pre-fabricated, thin materials, we installed custom-built stained wood trim designed to match the specific dimensions of the window frame.
We paid close attention to the sill and apron detail, ensuring every joint was refined and flush with the wall. By addressing the gaps at the source, we created a durable, cohesive finish that provides a weather-tight interior seal and a clean, high-end look.
Project Highlights:
• Custom Stained Wood Trim: Professionally crafted and installed wood casing that fits the home’s original character.
• Precision Gap Sealing: Eliminated energy-wasting gaps around the window frame for a more comfortable interior.
• Refined Sill Restoration: Rebuilt the window sill and apron for a durable, polished finish that stands up to daily use.
• Seamless Finish: Carefully mitred corners and flush installation for a professional, "factory-finished" appearance.
BEFORE: Existing window trim showing wear, gaps, and an unfinished appearance around the window frame.
AFTER: Custom-built wood trim installed around the window for a clean, finished, and cohesive look.
BEFORE: Close-up of damaged and unfinished trim along the window sill prior to repair.
AFTER: Finished sill and trim detail following repair and installation, creating a durable and refined window finish.
BEFORE: Uneven trim and exposed areas around the window, detracting from the overall finish of the space.
AFTER: Updated window trim providing tighter lines, improved fit, and a more polished appearance.

