A search term can look relevant to a trade while leading to work the company never performs. It can also look unpromising and still precede a useful booking. Build negative-keyword decisions around service fit and observed outcomes, with enough restraint to avoid excluding the customer you want.
Start With A Written Service Boundary
List work the business performs, work it does not perform and work that requires staff review. A residential electrician may decline industrial maintenance but accept a homeowner asking about a commercial-looking panel brand. A word alone is rarely a complete statement of the job.
Use the boundary to classify actual search terms alongside intake notes. Separate employment, training, product-only and unsupported-service intent from ambiguous repair intent. A search containing a part name may come from a do-it-yourself shopper or a person describing a broken fixture. The first question is what the inquiry revealed, not whether the phrase sounds sophisticated.
Understand The Exclusion Mechanism
Google Ads documents separate broad, phrase and exact negative match types for Search. Negative keywords do not expand to close variants in the same way as positive targeting. The help page also explains that singular, plural and synonym choices may require separate consideration. Check the current negative-keyword documentation before importing a large list.
Treat match behavior as a tool for implementing a decision already made. Where only one exact query has demonstrated poor fit, a narrow exclusion may preserve useful neighboring searches. Where an entire service is genuinely unavailable, a broader restriction may be appropriate after checking for collisions with services the business does offer.
Build A Four-Column Review Sheet
For each candidate, record the observed term, why it is unsuitable, the proposed scope and a useful search that must remain eligible. This last column makes unintended consequences concrete. Review campaign-level changes separately from account-wide changes because an exclusion suitable for one service can damage another.
Illustrative example: a plumbing business sells water-heater installation but does not sell parts over the counter. A term clearly asking for a wholesale parts catalog may warrant exclusion. Excluding the word parts everywhere could also block a homeowner seeking service because a replacement part is needed. The business decision is to avoid retail shopping intent, not every mention of a component.
Avoid Using Price Words As Automatic Rejections
People asking about cost are not necessarily poor customers. They may be checking whether a diagnostic fee exists or whether the business handles a project within their budget. Compare actual booked and completed work before excluding price-related terms. An unclear offer can create disappointing calls that a keyword change only conceals.
Similarly, a competitor name can represent comparison shopping, an unsupported brand or an existing service relationship. Each case calls for a different choice. Record the reason for any exclusion and keep advertising copy truthful; a search strategy is not permission to imply an affiliation with another company.
Release Small Changes And Check The Cost
Save the previous list, apply a bounded set of changes and annotate the date. Review spend, suitable inquiries and completed work for the affected campaign while watching for lost demand in services that should remain available. Low volume can limit conclusions; a quiet week does not prove the exclusions worked.
Assign a regular reviewer who can speak with dispatch. The marketing team sees queries, while staff hear the intended job. That shared review is what turns a negative-keyword list into a useful business control. Remove stale exclusions when service scope changes, and document why a formerly rejected term is now worth testing.
Common Questions
Can We Reuse A Competitor's Negative List?
Use it only as a list of questions to investigate. Different service scope, brands and customer needs make unreviewed imports risky. Every exclusion should have a reason that applies to your operation.
Is A Term With No Bookings Automatically Waste?
No. Check sample size, inquiry handling, appointment availability and time to decision. A term with repeated confirmed poor-fit requests is stronger evidence than a term with a few clicks and no completed cycle.
Sources And Further Reading
- About Negative Keywords · Checked 2026-10-26
These sources provide context. Requirements depend on the actual activity and applicable jurisdiction. Business-process guidance does not replace professional advice.