How to Get Contractor Estimates: A Step-by-Step Guide
· Guide · 3 min read
The Problem With How Most People Get Estimates
Most homeowners call a few contractors, have them walk through the house, and wait for prices to show up. The problem is that without a consistent scope of work, each contractor is pricing a different project. One includes demo, one doesn't. One prices solid hardwood, another is pricing LVP. One is including the HVAC, one is excluding it. Comparing these estimates is like comparing apples, oranges, and a bicycle.
This guide shows you how to run a structured bid process so you can make a meaningful comparison.
Step 1: Prepare a Written Scope of Work
Before contacting any contractor, write a clear scope document. It doesn't need to be architectural drawings — a detailed description is enough for initial estimates. Include:
- Every room or area involved
- What's being demolished or removed
- Key materials you want (or material categories and budget ranges)
- Systems to be modified (electrical, plumbing, HVAC)
- Special requirements (permits, timeline constraints)
Send this document to all contractors so they are pricing the same project.
Step 2: Send a Pre-Qualification Questionnaire
Before scheduling a site visit, send each contractor a short questionnaire:
- License number and state
- Insurance carrier and policy limits
- Number of similar projects completed in the past 12 months
- Current workload and earliest available start date
- Reference contact information for one recent similar project
This filters out contractors who aren't licensed or too busy, saving everyone time.
Step 3: Schedule On-Site Walkthroughs
Invite your shortlist (3–5 contractors) to walk the site. Give each contractor the same scope document and the same amount of time. During the walkthrough:
- Walk every area to be affected
- Point out any known issues (water damage, asbestos testing results, structural concerns)
- Clarify your timeline requirements
- Ask what additional information they need to prepare an accurate bid
Step 4: Request Itemized Written Bids
Specify that you want an itemized written bid — not a lump sum. A good bid should include:
- Line-item labor and material costs by trade
- Material specifications (brand, grade, or allowance amounts)
- Subcontractor list
- Proposed payment schedule
- Proposed start and completion dates
- Exclusions — what is NOT included in the bid
- Assumptions made
- Permit costs (or confirmation that permits are included)
Step 5: Build a Comparison Spreadsheet
Once bids are in, build a spreadsheet with each major line item as a row and each contractor as a column. This makes it immediately obvious where bids differ — which contractor is using higher-quality materials, which is pricing cheaper labor, and which is missing scope items entirely.
Step 6: Clarify and Negotiate
Contact each contractor with specific questions about their bid before making a decision. Common points to clarify:
- What material grade are they pricing for line items where no specification was given?
- What does their exclusion list mean for your project?
- Are permits included?
- Is their timeline realistic given their current workload?
Negotiating on price is reasonable, but be wary of a contractor who drops their price significantly without changing scope — it usually means they padded the original bid or they'll cut corners later.
Find contractors who provide detailed, transparent estimates by browsing our verified contractor directory.
Frequently Asked Questions
- How many estimates should I get for a home renovation?
- Get at least three written estimates for any project over $5,000. Three bids give you a meaningful price range and help you identify outliers — a bid that is significantly lower or higher than the others signals something worth investigating. For projects over $50,000, consider collecting four or five bids.
- How long does it take to get a contractor estimate?
- After an on-site walkthrough, most contractors need 3–7 business days to prepare a detailed written estimate. Avoid contractors who quote a price on the spot during the first visit without reviewing plans or taking measurements — that estimate will be revised upward once they've looked at the scope more carefully.
- Why are contractor estimates so different from each other?
- Estimates vary because contractors price risk differently, use different subcontractors, include different scope, and make different assumptions about materials. A 20–30% spread between bids is normal. A spread of 50%+ usually means one contractor has missed scope items, is using lower-quality materials, or is lowballing to win the job and padding with change orders later.