01 / Separation
Commercial relationships stay outside the calculation.
Advertisers, sponsors, manufacturers, utilities, and contractors cannot change equations, default assumptions, evidence thresholds, editorial conclusions, source selection, or result ordering.
02 / Placement
A commercial link must look and behave like one.
- No affiliate links inside required form steps or results
- No commercial link styled as evidence or a result
- No sponsored contractor ranking
- No layout shift that moves a control
- No preselected commercial offer
- No sale of calculator inputs
03 / Guardrails
User completion and trust are release gates.
Affiliate shopping briefs appear only where they add relevant context. A placement is removed when it materially harms tool completion, responsiveness, accessibility, stability, or source use. Display advertising is not currently enabled.
04 / Disclosure
Material relationships must be visible near the claim.
Amazon links are identified as paid links near the recommendation. If a reader buys through one of these links, Home Upgrade Toolkit may receive a commission without changing the reader's purchase price. As an Amazon Associate I earn from qualifying purchases.