Last updated: October 17, 2026
Contractor Quote Guide is owned and operated by Ailu Studio, an AI AUTOMATION studio, and edited by the Contractor Quote Guide Editorial Team. This Editorial Policy governs our homeowner project checklists and interactive quote comparison tools.
Editorial mission
Our goal is to help homeowners identify missing scope, allowance gaps, permit responsibilities, and change-order traps in written residential contractor proposals before signing or paying a deposit.
Primary source hierarchy
When referencing safety rules, energy performance, hazardous materials (such as pre-1978 lead-safe work or radon mitigation), or building practices, we prioritize U.S. federal and state agencies (EPA, DOE, ENERGY STAR, FEMA, OSHA, CPSC), building-code bodies, and established trade associations. Secondary commentary never replaces a primary code or manufacturer installation requirement.
No fabricated testing or contractor endorsements
We do not fabricate homeowner case studies, invent local contractor pricing, or claim physical inspection of individual homes. Worked examples in our calculator and guides are clearly labeled as illustrative planning scenarios.
Role of AI assistance
As disclosed on our AI Disclosure page, AI tools assist with research structuring, draft preparation, illustration generation, and consistency checks. Every published guide undergoes editorial verification for trade accuracy, source validity, and homeowner clarity.
Corrections
Material updates and factual corrections are logged with an updated modification date. Report any broken link or technical correction through the Contact page.