Free homeowner guide
Why are contractor quotes so different?
Because they may be pricing different work, different assumptions or different terms. Before deciding that one company is too expensive, put the proposals beside each other and find out what each number includes.
Check that the starting request was the same.
Did each company hear the same goals? One roofer might price a basic replacement while another includes additional repairs. An HVAC proposal may change ductwork that the other quote leaves alone. Solar offers can use different system sizes or financing assumptions. Write down those differences before ranking the totals.
Mark each important item in three ways.
Included: The proposal expressly covers it.
Excluded: The proposal says it is outside the price.
Not stated: You still need an answer.
Do not treat “not stated” as free work or automatically as an exclusion. Ask the company to clarify it in writing. That answer can change which offer actually fits your budget.
Use trade-specific questions.
- Roofing: How are flashing, ventilation and damaged decking handled? What happens if additional repairs are needed?
- HVAC: Are the equipment models, proposed capacity, duct changes and electrical work the same? Ask the installer to explain their sizing and installation choices.
- Solar: Do the offers use comparable equipment and production assumptions? Are battery, roof and electrical costs included, and is the displayed figure a cash price or a financing illustration?
Ask what the price includes and what could cost extra.
You can ask what work you are buying and how uncertain items will be handled. That is different from asking a fixed-price contractor to disclose every wage, overhead cost and profit margin. A company declining an internal cost breakdown does not by itself tell you whether its proposal offers good value.
Thank you for the proposal. I’m comparing the work included and need clarification on the items below. Please show what is included, excluded or an allowance, and send an updated written offer if anything changes.
Do not use an online price as the verdict.
Another homeowner’s total may reflect a different property, scope, market or date. Use it to find questions you had not considered. Your decision needs proposals for your own job, plus an understanding of the contractor and terms.
If one bid is much lower, investigate what explains it. If one is much higher, ask what additional work or value it provides. Neither extreme proves the best choice.
What to do next.
Use our full contractor bid comparison checklist to record the answers. If you want help resolving the differences, explore our comparison and scope-clarification support.