Repair vs Replace Interior Trim: How to Decide

In an older house the trim is frequently better than anything you could buy to replace it, so this decision is worth taking slowly. It is also one where the cheapest-looking option is often the expensive one.

Start with what you have

Trim in the coal-era housing around Williamson and Logan is usually solid wood, taller than modern profiles, and cut to a pattern nobody has stocked in seventy years. Baseboard running eight or nine inches is normal in these rooms, and it is a large part of why they feel proportioned the way they do.

Replace that with a modern profile and the room reads flatter and smaller, whatever you spend. So the default position on original trim in good condition is: keep it.

When repair is the right call

Repair wins in more situations than people assume:

• Damage in one place. A section knocked loose, a length damaged when a door was changed, a run affected by a leak that has been fixed. Splice in and match.
• Joints that have opened. Mitred corners that have separated as the house settled can be recoped so they stay closed rather than filled again every few years.
• Trim that is sound but tired. Paint is not a reason to replace anything.
• Anything original in a room you are not otherwise touching. Matching one room to the rest of a floor is far easier than matching a floor to one room you replaced.

A good splice disappears. The profile gets built up from stock pieces to match what is there, and the join between old and new is cut as a shallow scarf rather than a butt joint, so there is no vertical line for the eye to find.

When replacement makes more sense

There are honest cases for starting over:

• Most of it is already gone. If previous work has replaced trim in half the rooms with something that matches nothing, matching the survivors is chasing a target that has moved.
• Water damage through a whole run. Baseboard that has swollen and cupped along an exterior wall is not a repair.
• It was never good. Not all old trim is worth saving — plenty of houses have thin post-war profiles that owe nobody anything.
• You are doing several rooms anyway. This is the real one, and it surprises people.

What to check before deciding

Pull a length off in an inconspicuous place, or look behind a section that is already loose. Two things matter.

First, the wall behind it. In a house that has taken water, baseboard is the lowest woodwork in the room and it reports what the wall has been doing. If what is behind it is damp or soft, the trim is not the job.

Second, how it was fixed. Trim on plaster and lath was often bedded as well as nailed, which means removal takes plaster with it. Budget for patching — in an older house you should expect some, and a quote that does not mention it has not thought about it.

The thing people regret

Doing one room at a time without recording what was used. Three years later the profile is discontinued, the paint is a slightly different white, and room five never quite matches room one.

If you are working through a house gradually, decide the profile at the first room, buy the run in one order where you can, and write down what it was. That single step prevents most of what goes wrong with trim over a long renovation.

Getting it looked at

We will tell you which of these situations you are in, including when the answer is that the trim is fine and the room just needs painting. The interior trim page covers profiles, matching, and what the work involves; finish carpentry covers the standard of the joints and the prep, which is what decides whether the result looks right.