Why change orders happen: The gap between intent and contract#
Most change order disputes occur because the homeowner and contractor had different mental models of the finished project. When an estimate says "paint walls" without specifying primer coats, drywall repair levels, or trim, price friction is inevitable.
How to establish unbreakable change order rules in your contract#
- Mandatory written change orders: No extra work may proceed without a signed change order specifying cost and timeline changes.
- Pre-demolition visual modeling: Model finishes, layout boundaries, and fixture placements so all bidders quote identical scope.
- Contingency fund management: Keep a dedicated 10% cash contingency reserve outside the contractor’s contract for genuine hidden discoveries.
Scope boundary scorecard#
| Project Area | Vague Scope (High Risk) | Structured Scope (ModelQuoter Standard) |
|---|---|---|
| Tear-out / Demolition | "Remove old materials" | Itemized disposal bin, subfloor inspection, and daily site vacuuming |
| Electrical / Lighting | "Add pot lights" | Specific count (e.g., 6 x 4" slim LEDs on Lutron dimmer circuit) |
| Finish Materials | "Client supplies tile" | Tile specs, grout color, schluter trim profile, and layout orientation defined |