Getting multiple quotes is one of the best ways to protect your budget, but only if you compare them correctly. Contractors format estimates differently, include different things, and make different assumptions. A bid that looks cheaper may simply leave out work you’ll pay for later.
Step 1: Give every contractor the same scope
Before anyone bids, write a one-page project description. List what you want removed, built, and installed, the finishes you’ve chosen (or price ranges), and anything you plan to handle yourself. Give the same document to every contractor. The more specific you are, the more comparable the quotes will be.
Step 2: Check what each quote includes and excludes
Read each estimate line by line and note anything one contractor included that another left out. Common gaps:
- Permits and inspection fees
- Demolition, haul-away, and dumpster costs
- Electrical or plumbing upgrades to meet current code
- Drywall repair, painting, and trim after the main work
- Protection of floors and furniture, and final cleanup
- Repair of hidden damage, such as rotted subfloor or decking
Step 3: Watch the allowances
An allowance is a placeholder budget for items you haven’t picked yet, like “$1,500 for light fixtures” or “$4 per square foot for tile.” A contractor can make a bid look low by using unrealistically small allowances. Then your real selections push the price up. Compare allowance amounts across bids and ask whether they match what you actually want.
Step 4: Build a simple comparison sheet
Put the bids side by side so differences jump out:
| Compare | Contractor A | Contractor B | Contractor C |
|---|---|---|---|
| Total price | |||
| Permits included? | |||
| Demo & disposal included? | |||
| Allowances (total) | |||
| Exclusions | |||
| Deposit & payment schedule | |||
| Start date & duration | |||
| Workmanship warranty | |||
| License & insurance verified? |
Step 5: Compare terms, not just totals
Payment schedule
Look for a reasonable deposit and payments tied to completed milestones. Be wary of large up-front payments or cash-only deals. Some states cap how much a contractor can collect before work starts.
Change orders
Ask how changes are priced and approved. A good contract requires written, signed change orders with the cost stated before the work is done.
Schedule
A contractor who can start next week isn’t always better than one booked a month out. Ask how many projects they run at once and who will be on site day to day.
Warranty
Compare how long the workmanship warranty lasts, what it covers, and how to request service.
Why the lowest bid can cost more
A quote that’s far below the others usually means something is missing: a smaller scope, lower-grade materials, thin allowances, no permits, or a contractor who plans to make it up in change orders. Ask the low bidder to walk you through how they priced the job. If the explanation holds up, great. If not, the middle bid is often the safest value.
Questions to ask before you choose
- “What’s not included in this price?”
- “What happens if you find damage once the walls are open?”
- “Who pulls the permits?”
- “Can I talk to two or three recent clients with similar projects?”
For more, read 5 questions to ask before hiring a local contractor, then use the form below to get quotes from contractors in your area.