After 27 years and hundreds of renovation projects across Summit County, I've seen patterns. The same mistakes show up on job sites again and again — not because homeowners are careless, but because nobody ever tells them what to watch for.
Here are the seven most expensive mistakes I see, and exactly how to avoid them.
1. Starting Without a Clear Scope of Work
The most common and most costly mistake. When you don't have a documented scope of work, every contractor bids a different project. You can't compare bids, you can't hold contractors accountable, and change orders become a negotiation rather than a factual correction.
Fix: Before soliciting any contractor bids, develop a written scope of work with dimensions, material specifications, and explicit inclusions and exclusions.
2. Choosing the Lowest Bid
The lowest bid is almost never the best value. It usually means the contractor cut something from the scope, is planning to make it up in change orders, uses cheaper materials, pays their labor less (which affects quality and reliability), or simply made a mistake in their estimate.
Fix: Evaluate bids against the scope, not against each other. The goal is finding a contractor whose pricing is fair for the actual project — not finding the lowest number.
3. Skipping Permits
Unpermitted work creates cascading problems: it's a disclosure issue when you sell your home, it voids your insurance coverage if something goes wrong, and it may require you to undo the work later. Some contractors suggest skipping permits to "keep costs down" — they're not protecting you.
Fix: Require permits for all work that requires them. It's not optional.
4. Renovating Out of Sequence
Doing projects in the wrong order is one of the most expensive mistakes a homeowner can make. Common examples: installing hardwood floors before fixing a leaky pipe, painting before replacing a failing roof, updating cosmetics before addressing structural issues.
Classic example: I've seen homeowners spend $65,000 on a kitchen renovation, then discover 18 months later that their HVAC system is failing. Now they're disrupting that beautiful new kitchen to replace ductwork — a project that would have cost half as much if done before the kitchen.
5. Underestimating the Timeline
Every contractor has a "best case" timeline and a "realistic" timeline. The difference matters for your life — not just your schedule. If you're planning around an unrealistic completion date, you'll make decisions (furniture delivery, contractor scheduling, vacation timing) that compound when the project runs long.
Fix: Ask contractors for their 50th percentile estimate — the timeline they'd bet even money on — not their best-case scenario. Add 20% as your planning buffer.
6. Making Decisions Under Pressure
Once a contractor is on-site and work is in progress, the cost of changing course increases dramatically. The time to make decisions about fixtures, finishes, materials, and layout is before work begins — when you have options and leverage.
Fix: Make all finish selections before you sign the contract. This includes fixtures, hardware, tile, flooring, cabinet style, appliances, paint colors — everything. A decision made under pressure at a showroom on day 14 of a renovation is almost always a decision you'll regret.
7. No Independent Review Before Final Payment
The moment you hand over final payment, your leverage to get issues resolved disappears. Contractors move on to the next job. Punch lists get deprioritized. Issues that were going to be fixed "next week" never get fixed.
Fix: Walk through the completed project with your own checklist — or with a trusted advisor — before making the final payment. Don't pay 100% until you're 100% satisfied. Your contract should give you this right; if it doesn't, that's a red flag.
The Common Thread
All seven of these mistakes share something: they happen because homeowners don't have enough information. Not enough information about their home, about realistic costs, about how contractors work, about what good work looks like. That's an information problem — and it's exactly what the Home Clarity Report is designed to solve.