Negative Keywords for Contractor Google Ads That Actually Protect Budget

Why negatives matter more for contractors

Home-service searches mix emergency commercial intent with “how do I fix this myself” and “how much does this job pay.” Without negatives, a large share of spend goes to people who will never hire you. That inflates cost per lead and makes every channel look worse than it is.

Core negative categories (start here)

• DIY & self-help: diy, how to, how-to, fix myself, repair myself, tutorial, youtube, video
• Jobs & careers: jobs, hiring, career, salary, wage, apprentice, training, school, course, certification
• Free & cheap signals: free, cheap, cheapest, discount code (use carefully — some legitimate promo searchers exist)
• Parts & wholesale: wholesale, parts only, for sale, used, ebay, amazon (when not relevant to your offer)
• Wrong trade or scope: commercial only if you are residential-only, and vice versa; specific services you do not offer
• Informational only: what is, definition, meaning, history (unless you have strong answer-first content and want the top-of-funnel)

How to implement without over-blocking

Start with phrase-match negatives for the riskiest categories. Monitor the search terms report. Add exact-match negatives for clear losers. Revisit after seasonal shifts (heat waves, freezes, hail). Never bulk-import a 2,000-word list without reviewing it against your actual search terms.

Pair with positive structure

Negatives only work when campaigns are already segmented by intent and geography. Emergency, repair, replacement, and maintenance should not share the same ad groups and budgets. Combine this list with the revenue math in our lead-cost guide and the SEM playbook.