Countertop shops running Google Ads typically waste 15% to 30% of their search budget on clicks that were never going to become jobs: DIY installers researching how to do it themselves, homeowners price-checking Home Depot and Lowe's, appliance shoppers searching "countertop microwave," and people looking for countertop fabricator job openings. A negative-keyword list built around four categories — DIY/self-install, big-box retail, appliance/unrelated-product confusion, and job-seeker terms — closes most of that leak within the first week of adding it.
Why do countertop shops waste ad spend on DIY and big-box searches?
Google's broad and phrase match algorithms group your core terms ("quartz countertops," "granite countertop installation," "kitchen countertop cost") with searches that share intent signals but not buyer intent. Someone typing "how to install granite countertops myself" is researching a weekend project, not requesting a quote. Someone typing "Home Depot quartz countertops" already has a retailer in mind and is comparing prices, not shopping fabricators. Both clicks can cost you $8 to $18 depending on your market, and neither converts to a template appointment.
Performance Max campaigns make this worse because Google auto-expands targeting based on your landing page content, and countertop pages are full of terms — "install," "kit," "DIY," material names — that also appear on big-box and hardware-store pages. Without account-level negatives feeding into PMax's search themes, that waste compounds every month.
What negative keywords should a countertop shop add first?
Start with these four buckets. Add DIY and appliance terms as broad match negatives at the account level so they suppress across every campaign, including PMax. Add big-box brand terms as phrase match so you don't accidentally block legitimate comparison searches like "better than Home Depot countertops."
| Category | Example negative keywords | Recommended match type |
|---|---|---|
| DIY / self-install | diy countertop, install countertop myself, countertop installation instructions, how to cut granite at home, countertop overlay kit, peel and stick countertop, laminate countertop kit, concrete countertop diy, countertop resurfacing kit, unfinished butcher block | Broad (account-level) |
| Big-box / retail | home depot, lowes, ikea countertops, menards, costco countertops, wayfair countertop, amazon countertop | Phrase |
| Appliance / unrelated product | countertop microwave, countertop ice maker, countertop dishwasher, countertop fryer, countertop oven, countertop water filter, countertop convection oven | Broad (account-level) |
| Job-seekers / trade / wholesale | countertop fabricator jobs, countertop installer hiring, countertop templates woodworking, wholesale countertop slabs, countertop factory seconds, used countertops for sale, countertop remnants free | Phrase |
| Free / price-shopping | free countertop samples, countertop cost calculator free, cheap countertops near me under $500 | Phrase |
That's roughly 30 starter terms. Most shops don't need more than 50 total negatives to catch the bulk of irrelevant spend — beyond that you're chasing diminishing returns and risk over-restricting reach.
Should countertop shops treat "remnants" and "remodel" searches as negatives?
No — not automatically. "Countertop remnants near me" and "remnant granite for sale" often come from real buyers looking for a lower-cost small project (bathroom vanity, laundry room), which many fabricators fulfill profitably. Don't lump remnant searches in with "free samples" or "factory seconds" — those are different intents. If your shop doesn't sell remnants, negate that specific phrase; if you do, let it through and route it to a dedicated remnant landing page instead of your full-kitchen page, since the buyer journey and average job size are different.
How do you find the negative keywords unique to your market?
Pull the Search Terms report in Google Ads (Campaigns → Search Terms) every 7 to 10 days for the first two months of a new account, then monthly after that. Sort by cost, not clicks — a term with 40 clicks and zero conversions costing $6 each is a $240 leak; a term with 5 clicks costing $2 each isn't worth your time yet. Look specifically for:
- Material brand names that aren't yours (competitor slab brands, other fabricators)
- City names outside your service radius
- Commercial/architectural terms if you only serve residential ("commercial countertop supplier," "restaurant countertop")
- Repair-only searches if you don't do repairs ("countertop crack repair," "countertop chip fix")
- Rental property or landlord terms if your average job skews owner-occupied ("cheapest countertop for rental")
Add anything that's clearly off-intent as soon as it shows spend with zero conversions across 15+ clicks. Don't wait for a full month of data on obvious mismatches — a search for "Home Depot countertop installation cost" doesn't need three weeks of proof before you cut it.
How much can a negative-keyword list actually save?
Industry benchmarks put home-service Google Ads cost-per-lead in the $40–$120 range depending on trade and market, and countertop-specific CPLs often run on the higher end of that band because of elevated CPCs on material and installation terms. A clean negative list typically cuts wasted spend by 15% to 30% within the first billing cycle, which either lowers your blended CPL directly or frees budget to bid more aggressively on high-intent terms like "quartz countertop installation [city]" or "granite countertop quote near me." Shops like Stone Masters Inc, one of Nova's named case studies in premium stone fabrication, have used tighter search-term hygiene as part of the process behind a lower cost-per-lead and more qualified inquiries — the negative list isn't the whole strategy, but it's one of the cheapest levers to pull.
Frequently asked questions
Should I add "cheap" and "affordable" as negative keywords?
Not necessarily. Many legitimate buyers search "affordable quartz countertops" while still budgeting $3,000–$6,000 for a full kitchen. Only negate price-qualifier terms if your search-term report shows they're pulling in sub-$500 remnant or repair shoppers who don't match your minimum job size.
Will negative keywords hurt my Performance Max reach?
Account-level negatives apply to PMax and can meaningfully improve lead quality, but PMax gives you less visibility into exactly which search terms triggered a click compared to standard Search campaigns. Check the "Insights" and asset-group search category reports monthly and add negatives as patterns emerge rather than guessing upfront.
How often should I update my negative-keyword list?
Review the search terms report weekly for the first 60 days of a new campaign, then monthly once the account stabilizes. Seasonal shifts (spring remodel searches, holiday DIY project spikes) can introduce new junk terms, so a quarterly deep review is worth the 20 minutes even on mature accounts.
Can negative keywords replace better ad copy and landing pages?
No. Negative keywords stop the wrong clicks from happening; ad copy and landing pages convert the right clicks once they land. A shop with a tight negative list but a generic "contact us" page will still underperform a shop that pairs clean targeting with a landing page built around slab selection, template scheduling, and fabrication lead times.