Are your Google Ads paying for the wrong jobs?

To find wasted Google Ads spend, review the searches that actually triggered your ads—not just the keywords you selected. Group them by whether the person needs a service you sell, in a place you serve, at a stage you can handle. Add negative keywords for clearly irrelevant intent, but do not block a valuable query merely because it has not converted yet. Then check the outcome through qualified calls and booked jobs.

Contractors often see a campaign with acceptable click-through rates but disappointing calls. The search terms report can reveal a mismatch: an HVAC repair ad appearing for an apprenticeship, a roofer’s replacement ad attracting material shoppers, or a plumbing campaign reaching people outside the dispatch area. It can also reveal a legitimate service that deserves its own ad and landing page.

Query fit is only part of the audit. Use our Google Search Partners guide to compare where Search traffic originated and whether partner leads produce qualified bookings. If the pattern looks automated or malicious, follow the contractor invalid-traffic audit before treating every poor click as fraud.

Google says the report shows how ads performed when triggered by actual searches. It does not contain every search: some low-volume queries are omitted for privacy. Search terms insights can group some omitted queries into themes, but that is not a transcript of every click. Audit what is visible while keeping this limitation in mind.

Begin with the job, not a downloaded list

Write down the service menu before deciding what to exclude. Include jobs accepted, jobs declined, service radius, emergency hours, minimum job size and whether the company handles residential, commercial or both. That short operational brief prevents a common mistake: the agency adds “commercial” as a negative while the sales team wants more commercial maintenance contracts.

Separate campaigns where the economics or intent differ. A roofer’s storm repair, replacement and commercial flat-roof enquiries may need different ad copy, pages and qualifying questions. The same is true for emergency drain clearing versus planned repiping, or no-cool HVAC calls versus replacement estimates. Use our guide to decide whether each campaign should send traffic to the homepage, a service page or a dedicated landing page. See our roofing, HVAC and plumbing pages for how these services fit the wider lead system.

A four-bucket search-term audit

1. Qualified intent. The query describes a service you perform in a workable area. Preserve it; consider a better-matched ad or page if it is important.
2. Clearly wrong intent. The search is for a job application, training, a retail part, a DIY tutorial or a service you never sell. Consider a negative keyword.
3. Ambiguous intent. “Cost,” “free,” “near me,” “inspection” and brand/model terms require context. Check the full query, call outcomes and sales policy before excluding.
4. Wrong geography. The job is real but too far away. Review the advanced setting, exclusions and matched locations using our Google Ads location-targeting guide for contractors.

Use a working sheet with search term, campaign, cost, clicks, conversions, connected calls, qualified leads, booked jobs, proposed action and reason. A call marked “conversion” may be a supplier, recruiter or existing customer. A search with no form submission may lead to a phone booking later. A term-level decision deserves more than a red number in an ad dashboard.

Negative-keyword examples, with the important caveats

Consider employment terms such as “jobs,” “salary,” “apprenticeship” and “training” if the campaign exists solely to win customers. Review “DIY,” “how to,” “manual,” “parts,” “wholesale” and “tools” if you do not sell products or instruction. Exclude competitors’ names only if that reflects your bidding strategy. Review words for services you never offer: a repair-only shop might exclude replacement-related intent; a replacement business should not.

Be particularly careful with “free.” A query for a free estimate might be an excellent lead if you offer one, while a search for free equipment is not. “Cheap” may signal poor fit for premium replacement work, but some people use it loosely while comparing options. “Emergency” is a poor target only if the team cannot respond. No universal starter list understands your dispatch board.

How negative match types really work

Google supports broad, phrase and exact negative match in Search campaigns, but negative matches do not behave like positive keyword matches. A negative broad term blocks searches containing all its words, even in a different order. A negative phrase requires those words in the same order. A negative exact applies to the exact terms without extra words. Test a proposed exclusion against known good queries before adding it at account level.

Google also says negatives do not match close variants or other expansions. You may need separate singular, plural and synonym forms. The platform handles casing and misspellings automatically. That distinction matters: blocking “roofing jobs” does not mean every employment-related variant is gone, and adding the broad negative “roof” could wipe out the work you want.

Use account-level negatives only for terms that are wrong across the whole account. A campaign-specific exclusion can protect a repair campaign without preventing a replacement campaign from serving. More exclusions are not inherently better; Google warns that too many can shrink reach.

What about searches outside the service area?

Do not assume every distant click is caused by a keyword. Google’s default location option can include people interested in the targeted area, not just those in or regularly in it. A local emergency contractor may want to test the narrower “Presence” option if outside-area demand is poor, while understanding that it can reduce reach. Google notes that location signals are best-effort, not perfectly accurate.

Check the campaign’s geographic performance, actual lead addresses and dispatch decisions. A homeowner researching a property in your territory from another city may still be worth reaching. A person requesting service in a town two hours away is different. Document the reason before changing the setting.

How to make the audit useful to the business

New campaigns and campaigns after a major keyword change need more frequent review. Established campaigns can use a cadence that reflects spend and query volume. Review both the high-cost mistakes and the high-intent discoveries. For an agency, the monthly report should show which exclusions were made, why, which valuable terms earned dedicated ads or pages, and what changed in qualified opportunities.

Do not calculate “saved spend” by summing all historic costs of now-excluded queries and presenting it as future savings. Demand, bidding and traffic mix change. Compare periods carefully and keep the real scorecard: qualified cost per opportunity, booked jobs and gross profit where records allow. Our lead-conversion diagnosis shows why call handling must be measured alongside traffic, and the budget guide connects acquisition cost to job economics.

Questions to ask your Google Ads agency

• Which search terms spent the most without producing a qualified opportunity?
• Which apparently poor terms were kept because they match real services or later sales?
• Which negatives are account-wide, and which apply only to one campaign?
• Have location settings and actual lead locations been reviewed?
• Are calls classified as connected, qualified and booked—not simply counted?
• What new customer language should improve the ad and landing page?

If the answer is only “we added 200 negatives,” ask what happened to bookings. Our agency evaluation guide covers ownership and reporting expectations more broadly. For a channel choice rather than a campaign audit, see SEO versus Google Ads.

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Frequently asked questions