1. Choosing on price alone
- The lowest bid almost always means corners are being cut on materials, labor, or both. Mid-range bids with proper itemization are the safer choice.
2. Skipping waterproofing on showers
- Cheap tile installs without membrane systems leak within 2–3 years. Always insist on Schluter Kerdi or equivalent.
3. Late design changes
- Change orders mid-construction are the #1 source of cost overruns. Lock every selection before demo.
4. Not pulling permits
- Unpermitted work haunts the home at resale. Insist on permits — they protect you.
5. Going DIY on plumbing/electrical
- Hidden inside walls for 30+ years. Save DIY for paint, not pipes.
6. Underestimating timeline
- Real timelines: bath 2–4 wks, kitchen 3–6 wks, full home 6–12+ wks. Plan accordingly.
7. No contingency
- Old homes hide surprises. Reserve 10–15% of your budget for the unknown.