Normalize the unit
A per-pier quote is compared per pier and a wall scope by section. Permit and hourly labor figures are not added a second time.
Private, client-side comparison
Enter the work type, measured scope, market and quoted amount. Your answers stay in this browser—we do not ask for your name, email or phone number.
No. 01 — Comparison logic
The checker builds the same method-and-quantity planning range as the foundation calculator, then compares your quote with that range. It does not diagnose the house or decide whether the work is necessary.
A per-pier quote is compared per pier and a wall scope by section. Permit and hourly labor figures are not added a second time.
Below 60% of the reference low is “well below.” Above 130% of the reference high is “well above.”
A difference can be legitimate. Ask which engineering, access, excavation, restoration and permit tasks explain it in writing.
They are deliberately labeled as review triggers, not market facts. A quote outside the range is not evidence of misconduct, and a quote inside it is not proof that the scope is correct. All ten pilot markets currently use the national fallback.
No. 02 — Written checklist
FTC consumer guidance supports comparing written estimates and checking the contract. Local building authorities determine permit and inspection requirements.
Do not treat a permit fee as a universal add-on. Requirements, fee bases and plan-review steps differ by jurisdiction and may already be included in the quoted total.
Use the estimate breakdown guide to turn a lump-sum proposal into method, quantity, site-work and contract questions before comparing the total.
No. 03 — Questions
No. The comparison runs in your browser. Quote amount, market, quantity and checkbox answers are not saved or sent to analytics.
No. Access, engineering, soil, permits and restoration can explain a difference. The checker gives you questions to ask; it does not determine misconduct or whether work is necessary.
Choose the closest method only for orientation, then compare the exact proposed method and measured quantity with the full foundation cost table.
They are an editorial triage policy, not market statistics. They separate ordinary range differences from quotes that deserve more scope questions; they do not prove that a price is fair or unfair.
No. 04 — Sources
Source date 2026-03-17; verified 2026-07-26. Evidence class: market-data; family: angi-homeadvisor. Primary upstream cost survey used for national, method, issue, engineer-report, permit and labor ranges.
Source date 2026-07-10; verified 2026-07-26. Evidence class: market-data; family: angi-homeadvisor. Primary upstream source for underpinning, pier counts, project labor and permit ranges.
Source date 2026-06-20; verified 2026-07-26. Evidence class: market-data; family: angi-homeadvisor. Shares an upstream cost-data ecosystem with Angi and should not be treated as an independent dataset.
Source date 2026-03-06; verified 2026-07-26. Evidence class: editorial-market-data; family: angi-homeadvisor. Editorial presentation derived from Angi cost data. It is not an independent price-data family.
Source date 2026-02-25; verified 2026-07-26. Evidence class: editorial-market-data; family: angi-homeadvisor. Secondary editorial synthesis. Its national anchor and engineer figure trace to Angi, so it is not counted as independent price evidence.
Source date 2026-01-01; verified 2026-07-26. Evidence class: official-consumer-guidance; family: ftc. Supports written-estimate, contract and payment checks. It does not support a fair-price threshold.
Source date 2026-01-01; verified 2026-07-26. Evidence class: official-licensing; family: ncees. Directory for the relevant state engineering licensing authority; it does not provide price data.