iSpec LLC

Not every bad renovation looks bad at first glance.

Sometimes you walk into a bathroom and everything appears finished — painted walls, working fixtures, tile on the floor. It's only when you start looking closer, or when you open up a wall, that the real story comes out. And in older homes, that story sometimes has layers.

## What "Built Over" Actually Means

One of the more common — and more expensive — problems we encounter in Columbus-area homes is a DIY renovation that was built directly on top of the home's original construction. Instead of demoing the old bathroom down to the studs and doing the work properly, the previous owner simply framed new walls over the old ones, laid new flooring over the existing, and covered everything up with fresh finishes.

From the surface, it can look fine for years. But underneath, the original bathroom is still there — aging, deteriorating, and now impossible to inspect or maintain. When something eventually fails, you're not just fixing one bathroom. You're removing two.

## What We've Seen Behind the Walls

In a recent project on a 1940s ranch near Upper Arlington, we performed a home inspection before the buyer closed on the house. We already knew the rough plumbing was aging and the bathroom had been redone at some point. What we didn't know until demo was just how the previous work had been done.

The DIY renovation had been layered directly over the original 1940s bathroom. Framing over framing. Finishes over finishes. None of the original structure or systems had been touched — they'd just been buried. When we started pulling things apart, we found brick mold used as door trim, door casing repurposed as crown molding, and cracked grout throughout. Behind the walls, the electrical was the most concerning discovery. Extension cords had been cut and spliced in as permanent wiring in place of Romex. Nothing was to code. Nothing was salvageable.

That's two full layers of bathroom — the bad DIY and the original underneath — that had to come out of one room before a single piece of new work could begin.

## Why It Costs More Than Starting From Scratch

A homeowner doing a standard gut remodel on a 1940s bathroom is dealing with one layer of demo, one set of old systems to assess, and a clear path to rebuild. When there's a second layer of construction on top, the scope changes in ways that aren't always obvious from the outside.

Demo takes longer because you're removing more material and doing it carefully — you don't always know what's structural and what was added by the previous renovation. Disposal costs go up. And once you get to the original structure, you're often finding the exact problems the previous owner was trying to hide rather than fix.

In the case of this project, the 1940s drain lines were deteriorated and leaking — a problem the overbuild had effectively made invisible. Fixing it meant replacing the drain lines not just in the bathroom, but throughout the house. That's a scope increase that no one budgets for in a bathroom remodel, but it's the kind of thing that happens when problems get covered up instead of addressed.

## What Homeowners Can Do to Protect Themselves

If you're buying an older home — especially one that's been "updated" by a previous owner — a thorough home inspection is the single most important step you can take. Not a quick walkthrough, but a real inspection that looks at the systems, not just the surfaces.

When possible, have the inspection done by someone who understands construction, not just code compliance. A contractor who performs inspections can often tell you not just what's wrong, but what it's going to take to fix it — and what a realistic renovation plan looks like before you even close on the house.

That's exactly how the Highland project came together. The inspection identified the plumbing, the furnace, and the bathroom as priorities. The buyer went in with a clear scope and a plan. The drain replacement was coordinated with the bathroom remodel so the house only had to be opened up once. The furnace was replaced as part of the same project timeline. And the bathroom — stripped down to the cinder block and rebuilt from the joists up — became the home's best room instead of its biggest liability.

## The Takeaway

A finished surface doesn't mean the work underneath was done right. If you're looking at a home where a previous owner did their own renovation, assume nothing. Get it inspected by someone who knows what to look for. And if the walls need to come open, don't build over what's already there. Take it down to the structure, do it correctly, and build something that lasts.

The shortcut always costs more in the end.