Negative keywords help stop your Google Ads appearing for selected searches that are irrelevant to your business. Used carefully, they protect your advertising budget while keeping your ads eligible for searches from potential customers.
If you’re getting clicks but few useful enquiries, the searches behind those clicks deserve attention. Someone looking for a plumbing apprenticeship has a different goal from someone who needs a leaking pipe repaired.
At Netmediasolutions, our PPC management in Shefford connects search-term reviews, conversion tracking and landing-page improvements to focus campaigns on useful enquiries.
Why Related Searches Can Still Waste Your Budget
A keyword can describe your industry without describing a customer’s intention to buy. Depending on your keyword and matching setup, advertising plumbing services could attract searches about courses, employment or doing repairs at home.
When someone clicks, that visit uses part of your budget. If your business cannot meet their needs, there may be little realistic opportunity for an enquiry.
When planning your ads budget, check search relevance before increasing spend. A larger budget can fund more of the same unsuitable traffic.
Suggested read: PPC for Plumbers, Builders & Trades: What Works in 2026
How Negative Keywords Filter Unwanted Searches
An exclusion tells Google which terms should prevent your ad from appearing, according to the negative match type you choose. For Search campaigns, the basic options are:
- Broad: blocks searches containing all the excluded terms, even in a different order.
- Phrase: blocks searches containing those terms in the same order, including searches with extra words around them.
- Exact: blocks that complete search, in that order, without extra words.
Choose an exclusion narrow enough to protect useful traffic. Blocking a complete unsuitable query is more precise than excluding a word that appears in many valuable searches.
Exclusions do not automatically cover synonyms or singular and plural versions. These negative match rules differ from positive keyword matching: excluding “course” does not also exclude “courses”. Casing and misspellings are automatically accounted for.
For an accountancy firm that does not recruit, a negative phrase match for “accountant jobs” would block “local accountant jobs”, but not “accountant for a local business”. The exclusion filters employment intent without blocking that potential customer’s search.
Build Your Exclusions From Actual Search Terms
The Search Terms Report shows queries that triggered your ads. Find it under Campaigns, then Insights and reports, then Search terms. Some low-volume queries are omitted for privacy, so it does not show every search. Review the available queries rather than applying a generic negative keyword list unchanged.
We check unwanted intent against the services being advertised. Group recurring themes such as employment or training, then record why each exclusion belongs in the campaign. Review those decisions when your offer changes.
Clearly irrelevant intent is usually the simpler decision. A plumbing company selling repairs has little reason to fund searches for plumbing qualifications if it provides no training.
Ambiguous intent needs more care. Blocking “free” could remove a useful search for a free quote. “Cheap” can signal a price-conscious buyer who still wants to book. DIY searches might be unhelpful for an installation-only business but valuable to a retailer selling supplies.
Before adding an exclusion, ask: could this search describe someone we can genuinely help? Check both the term and match type before applying it.
Our guide to Google Ads conversion problems covers the wider issues behind clicks without enquiries. Search relevance is one place to investigate, alongside the offer, page and tracking.
Check Whether Better Targeting Produces Better Enquiries
Fewer clicks could mean less waste or lost customers. Agree which actions count as useful enquiries, such as completed quote requests or booked calls, and check that tracking records them correctly.
After changing exclusions, review:
- Conversions: are suitable calls, forms or bookings still coming through?
- Cost per conversion: how much are you spending to generate the actions you value?
- Lead quality: do those enquiries match your services and turn into worthwhile sales conversations?
A search with no recorded conversion is not automatically irrelevant. Check its intent and whether there is enough evidence to judge it. We often see paid traffic expose an unclear offer, weak proof, slow loading or a difficult form. Investigate these barriers before excluding relevant searches.
For businesses using our Google Ads management in Hitchin, targeting must reflect their services and coverage. Keyword strategy, geographic targeting, ad copy and landing pages all need attention. Exclusions cannot repair a broken form or an unrelated page.
Suggested read: You’re Getting Leads But Not Sales — Fix the Follow-Up Problem
Frequently Asked Questions
Do negative keywords affect organic search rankings?
No. They control eligibility for paid ads, not where your website ranks in organic search. Your SEO content and Google Ads exclusions serve different purposes.
Can I use the same list across campaigns?
Only where the exclusions genuinely apply to every campaign using it. If one campaign promotes training and another promotes professional services, a shared exclusion for courses could block useful traffic.
Do exclusions work the same way on Display and Video?
No. Google applies negative keywords differently on Display and Video, so the Search-campaign rules described here should not be treated as instructions for every advertising format.
Negative keywords work best when every exclusion has a clear business reason. Keep useful searches eligible and judge changes by the enquiries they bring, not just the clicks they remove.
Need Help With Wasted Google Ads Spend?
If your ads attract irrelevant searches, we can review your queries, targeting and route to enquiry. Our managed PPC approach brings keyword research, ad copy, landing pages and performance tracking together, so exclusions are considered alongside other improvements.
Call 01462 530701 or email [email protected] to discuss your account. Explore our Google Ads campaign management or contact our team to talk through your next steps.