- Timelines and Budgets Are Almost Always Underestimated
Contractors often present optimistic timelines and cost estimates to secure your project—but real life introduces surprises like hidden damage, waiting for permits, supply delays, and poor weather.
Good Housekeeping recommends building a 20% buffer into your budget and timeframe.
Housely also suggests reserving 15–20% contingency to cover unexpected expenses.
- You’ll Need to Make Quick Decisions—Often Under Pressure
Once the project begins, contractors expect rapid choices on materials, finishes, and fixtures.
Housely highlights that delayed decisions can stall progress and inflate costs.
Good Housekeeping warns the phrase “while we’re at it” can lead to costly additions mid-project.
- Not All Materials and Workers Are What They Seem
If you don’t specify materials, contractors may use cheaper, builder-grade options without telling you.
Contractors often mark up materials significantly (10–30% or more), with little transparency.
Additionally, your project might be handled by subcontractors whose skill levels vary—something seldom disclosed.
- You May Be Responsible for Permits, Clean-Up, Utilities & Daily Disruption
Many contractors expect you to handle permits—don’t assume it’s included.
Clean-up after work often isn’t part of the service unless specified.
Contractors may use your home’s utilities, leading to higher bills, or you may deal with noise and blocked access.
Redditors also note: renovations disrupt daily life more than homeowners anticipate—with kitchen inaccessibility, debris, and scheduling frustrations being common.
- Poor Communication or Contracts Can Lead to Costly Mistakes
Clear, written contracts are vital. Contractors may favor vague agreements that leave room for surprise charges or changes.
Red flags include:
Large upfront deposits (over 10–25%)
Lowball bids or a lack of insurance
No permit handling clause
Reddit advice: document all changes in writing, get impacted parties to sign off, hold final payment until you’re fully satisfied, and consider photo documentation of your space before work starts.