Free Resources

Contractor & Renovation Guides

Plain-language guides for homeowners navigating contractor bids. Built from real data — not generic advice.

Core Guide8 min read

How to Compare Contractor Bids

A step-by-step framework for evaluating bids side by side — materials, labor, payment terms, and red flags.

Red Flags10 min read

Contractor Bid Red Flags: 26 Warning Signs

The complete list of financial, structural, and behavioral red flags — with severity ratings and what to do about each.

Payment6 min read

How Much to Pay a Contractor Upfront

The industry standard is 10–33%. Here's what's normal, what's a red flag, and state-by-state deposit limits.

Checklist7 min read

What Should a Contractor Bid Include?

The complete checklist — every line item, document, and piece of information a bid must have before you consider signing.

Done reading? Put it to work.

Analyze your contractor bid with AI

BidLens checks pricing, flags red flags, verifies specs, and tells you what to negotiate — free.

Try BidLens free →