What causes doors to stop closing properly after renovations?

Doors that won't close properly after renovations are typically caused by structural settling, frame distortion, or changes to the surrounding structure during construction work. This is one of the most common post-renovation issues Toronto homeowners face, especially in older century homes where even minor structural changes can affect door alignment.

Structural Movement and Settling
The most frequent culprit is structural movement caused by renovation work. When contractors remove walls, install new flooring, or make changes to load-bearing elements, the house naturally adjusts to these modifications. In Toronto's older homes—particularly century properties in neighborhoods like Cabbagetown or The Annex—even small changes can cause noticeable settling. The house frame may shift slightly, causing door frames to move out of square. This settling typically occurs within the first 3-6 months after major renovation work and is completely normal.

Flooring and Threshold Changes
New flooring installation is another major cause of door closure problems. If contractors installed thicker flooring materials without adjusting door heights, doors may now drag on the floor or bind against new thresholds. Hardwood, luxury vinyl, or tile installations can add anywhere from ¼ inch to ¾ inch of height, significantly affecting door clearance. This is particularly common in Toronto condo renovations where original doors were cut to precise clearances for the original flooring.

Frame Distortion from Construction Activity
Heavy construction work can cause door frames to shift or become distorted. Vibrations from demolition, the weight of materials being moved through doorways, or accidental impacts during construction can knock frames out of alignment. In Toronto's post-war bungalows, where framing may already be settling after decades, renovation activity can exacerbate existing alignment issues.

Moisture and Climate Changes
Toronto's humid summers and dry winters cause wood doors and frames to expand and contract. If renovations involved opening walls or changing ventilation patterns, doors may be experiencing different humidity levels than before. Basement renovations are particularly susceptible to this issue, as improved moisture control can cause previously swollen doors to shrink, or conversely, new moisture sources can cause binding.

When to Call a Professional
While minor adjustments like sanding door edges or adjusting hinges can be DIY projects, significant alignment issues require professional attention. If multiple doors throughout your home are affected, or if doors are binding severely, this indicates structural movement that needs assessment. A qualified carpenter can determine whether the issue requires frame adjustment, door rehinging, or more significant structural correction.

Next Steps
Start by checking if the problem affects multiple doors—this indicates house settling rather than individual door issues. For single-door problems, inspect for obvious issues like new flooring interference or loose hinges. Document the problems and contact the renovation contractor first, as door alignment issues are often covered under their warranty. For persistent problems or multiple affected doors, consult a finish carpenter who can assess whether structural settling has stabilized or if further movement is expected.