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Negative keywords for Google Ads — by industry

Curated from 144 public PPC agency guides, validated in Google Ads Keyword Planner. Each keyword is labelled HIGH / MED / LOW by search volume — biggest budget wastes surface first. Copy them in, save the spend.

Anton Kapelushny
Compiled by Anton Kapelushny
15+ years in PPC · $10M+ ad spend managed · ex-Madgicx

No vetted list for your locale yet — showing English fallback.

Plumbers / Plumbing — 64 negative keywords

10 universal · 54 industry-safe · 9 context-sensitive (opt-in)

Universal (apply to every account)

wikipediawikiredditquorayoutubetiktokwhat isdefinitionmeaningmeme

Industry-safe (auto-apply defaults)

sorted by monthly search volume
deal1M–10M/mojobs1M–10M/moschool1M–10M/mofree100K–1M/mohow to100K–1M/mocollege100K–1M/moresume100K–1M/mouniversity100K–1M/mocareers100K–1M/moclass100K–1M/moclasses100K–1M/mounion100K–1M/molearn100K–1M/moeducation100K–1M/moDIY100K–1M/mohow to fix100K–1M/motraining100K–1M/mosalary100K–1M/mohiring100K–1M/moplumbing supplies100K–1M/moinstructions100K–1M/modiagram100K–1M/motutorial10K–100K/mocheap10K–100K/modiscount10K–100K/mocertification10K–100K/mocourse10K–100K/mosupplies10K–100K/mopvc pipe10K–100K/moapprentice10K–100K/mohomemade10K–100K/moparts10K–100K/mopex pipe10K–100K/moyourself10K–100K/mojourneyman10K–100K/modo it yourself10K–100K/moplumbing school10K–100K/mohelper10K–100K/moplumbing fixtures1K–10K/moplumbing parts1K–10K/mocopper fittings1K–10K/mohow to unclog1K–10K/molicense exam1K–10K/moplumbing tips100–1K/moplumbing guide100–1K/momaster plumber test100–1K/moapprenticeshipwholesalebuyfaucet for salecheapestcouponbargainlowest price
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These may block money queries depending on your offering (e.g. free consultations, cash-pay patients, rental listings, service categories). Skim them and toggle include only what fits your business.
  • amazon10M+/mo — Retailer brand
  • home depot10M+/mo — Retailer brand — some operators do compete
  • lowes10M+/mo — Retailer brand
  • walmart — Retailer brand
  • roto-rooter — Competitor-brand bidding is a valid strategy
  • mr. rooter — Competitor-brand bidding is a valid strategy
  • hvac — Multi-trade home-services operators do want HVAC traffic
  • electrician — Multi-trade operators
  • landscaping — Multi-trade operators

How to add these in Google Ads

  1. Open your Google Ads account → Tools → Shared library → Negative keyword lists.
  2. Create a new list. Paste the copied keywords (one per line).
  3. Apply the list to your Search / Shopping / Performance Max campaigns.
  4. Match type: broad match is the safest default for negatives.

Sources

Compiled from these public PPC guides. Each entry lists which industries + languages it contributed to.

Show all 144 sources

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Last updated: 2026-08-17

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