← All resources

Homeowners collecting bids

How to Compare Crawl Space Quotes

By the CrawlQuote team · Updated 2026-08-01

The short answer: Compare scope before price. Two quotes thousands of dollars apart are usually describing different jobs — different liner thickness, different wall and pier coverage, different handling of insulation, debris, drainage, and dehumidification. Normalize the scope line by line and the price gap usually explains itself.

The seven questions that expose the difference

Put every quote through the same checklist:

  • Liner thickness and coverage — 6-mil dirt cover or 12-mil+ liner across ground, walls, and piers? These are different products.
  • What's being removed — old barrier, fallen insulation, debris? Included or extra? How much?
  • Seam and penetration sealing — taped and sealed to the standard, or draped and weighted?
  • Dehumidification — included, excluded, or 'recommended later'? Is the unit sized to the space?
  • Drainage — if you have water entry, does the quote address collection and discharge, or does it encapsulate over the problem?
  • Measurement basis — measured area, or eyeballed? What happens if the real number differs?
  • Change policy — what happens when something unexpected turns up onsite? In writing?

Red flags worth taking seriously

Prices that drop dramatically when you hesitate. Scare photos with no moisture readings. 'Today-only' discounts. A refusal to leave a written scope. None of these mean the work is unnecessary — they mean the price wasn't real to begin with.

How we make comparison easy

CrawlQuote publishes the pricebook: $4.00/sq ft for 12-mil encapsulation of ground, walls, and piers with a $3,995 minimum, defined multipliers for height and access (capped at 2.00× combined), and fixed catalog prices for every add-on. Your proposal itemizes all of it, states the ±10% measurement tolerance, and locks the pricebook version. Take it, hand it to a competitor, and make them match the scope line for line. We're comfortable with that comparison — that's the point.

See your own number

Enter your address for a transparent, catalog-priced CrawlQuote. No email required to see pricing.