Why Renovations Go Over Budget (and How to Stop It)

Why Renovations Go Over Budget (and How to Stop It)

Your renovation is going to go over budget. I've seen it happen on nearly every job I ran over 38 years. It's not bad luck. It's predictable. And yes, you can avoid most of it. Let me tell you why renovations go over budget and what to do about it.

First, a number: on average, expect the final cost to land 15 to 25 percent above the initial estimate. If you're planning a $50,000 kitchen, that means $57,500 to $62,500. Why does that happen? I've got four reasons that cover 90 percent of overruns.

The Number One Reason: Scope Creep You Didn't See Coming

You walk into a supply house for a new faucet. You see a tile that matches perfectly. Suddenly, you're tiling a backsplash that wasn't in the plan. That's scope creep. It happens on every job. I once had a client who stopped by a granite yard while I was demoing their kitchen. She came back white-faced because she saw a slab that cost $3,000 more than the one she picked. She bought it. Her budget went up by $3,000 before lunch.

Scope creep isn't just upgrades. It's "while we're at it" decisions. You open a wall and find old wiring. You can't leave it. That's another $1,200. You find rot in the subfloor. That's $800. If your budget doesn't have a 15 percent contingency just for surprises, you're setting yourself up. I always built a 20 percent cushion into my estimates. Most homeowners don't. That's why renovations go over budget.

Bad Bids and Hidden Costs

The second reason is the bid itself. Lots of contractors give you a number that covers the easy stuff – cabinets, countertops, labor – but leaves out the expensive bits. Things like permits, dump fees, moving costs, and temporary kitchen setup. I've seen bids that didn't include the cost of moving a load-bearing wall. That's a structural engineer and a steel beam – $2,500 to $5,000 easy.

You ask, "Is that in the bid?" They say, "We'll see when we open it up." That's code for "we'll charge extra." I'm not saying contractors are dishonest. Many are just optimistic. But a bad bid is the fastest way to blow your budget. Get three bids. Compare line items. Ask what's NOT included. If a contractor can't give you a detailed estimate, walk away.

Another hidden cost: the material markup. Some contractors add 10 to 15 percent for handling and delivery. That's fine if they tell you. But if they don't, you're paying for lumber that costs them $1,000 but shows up on the invoice as $1,200. That's part of why renovations go over budget.

I remember a job where the bid was $12,000 for a bathroom. The contractor didn't include the tile. The homeowner thought tile was included. That was $3,000 more. Then the plumber found the old galvanized pipes had to be replaced – another $2,000. The final bill was $17,000. The homeowner didn't know to ask. You have to ask.

The Old House Tax

If you own a house built before 1970, you're paying the old house tax. I know because I've been renovating my 1920s Colonial for 25 years. Every wall you open reveals something that wasn't built to modern code. Knob-and-tube wiring. Galvanized pipes that are rusted shut. A foundation that's settling. These aren't maybe problems. They're when problems.

Let me give you an example. A client wanted to add a bathroom in a 1950s ranch. The bid was $15,000. When we opened the floor, we found termite damage in the joists. That required a structural repair – $4,500. Then we discovered the main drain was cast iron and had a belly. Needed a reroute – $3,000. That $15,000 job became $22,500. The homeowner was shocked. I wasn't. If you don't budget for old house surprises, you're going to get burned.

In my own house, I wanted to replace a window. It looked simple. But the frame was rotted behind the siding. That meant removing siding, repairing the sheathing, then new window, then siding. The $500 window became a $2,500 job. Ask me how I know.

How to Actually Budget So You Don't Get Burned

Here's the system I used for 20 years. It works. First, decide what you want to spend total. Then add 20 percent to that number. That's your real budget. If you have $40,000 to spend, you shop like you have $32,000. The extra $8,000 is for surprises.

Second, write a scope of work that's as specific as possible. Don't say "new kitchen." Say "remove existing cabinets, install 10 linear feet of Maple shaker cabinets with Blum hardware, quartz countertop, under-mount sink, new garbage disposal, install backsplash in 4x4 subway tile." The more detail, the harder it is for anyone to add "unforeseen costs."

Third, hold 10 percent of the payment until the job is done. Some contractors hate that. I used to require it. It keeps everyone honest.

Fourth, make every change order – even small ones – in writing. If you decide to move a light switch, write it down and get a price. I've seen a $200 change order turn into $800 because nobody wrote it down. That's why renovations go over budget.

Lastly, ask yourself: is this a need or a want? That backsplash you fell in love with? It's a want. And wants break budgets.

I've been fixing houses since before cordless drills. You don't have to learn the hard way. Of course, I've screwed up plenty of jobs too. That's why I'm telling you this.