Local Service Ads vs. Google Search Ads — Which Pays Back Faster?

By Martin Lasarga, Founder & Fractional CMO

TL;DR

Local Service Ads (LSA) usually beat Google Search Ads on cost per lead by 30–60% for residential service categories, but Search Ads still win for complex sales, commercial work, and categories LSA doesn't support. Most East Bay service businesses should run both, weighted toward LSA. Here's how to decide the split.

What's actually different between LSA and Search Ads

LSA shows you at the very top of Google for service queries with a 'Google Guaranteed' or 'Google Screened' badge. You pay per lead (call or message), not per click. Google qualifies the lead before charging — wrong-number and obvious-spam leads can be disputed. Search Ads put you in the standard text-ad slot, pay-per-click, and Google doesn't filter intent before charging.

LSA is available for ~70 service categories (HVAC, plumbing, electrical, roofing, locksmith, lawyers, real-estate, etc.). If your category isn't supported, Search Ads is the only paid option.

Cost per lead — what we see in East Bay campaigns

Across 30+ East Bay service campaigns we've run in the last 18 months, the typical CPL pattern is:

HVAC: LSA $35–$70/lead, Search Ads $85–$160/lead. Plumbing: LSA $30–$60/lead, Search Ads $70–$140/lead. Roofing: LSA $50–$110/lead, Search Ads $120–$240/lead. General contractor: LSA $60–$140/lead, Search Ads $110–$220/lead. Dental (new-patient): LSA not available; Search Ads $90–$180/booked patient.

Numbers vary by city, account history, and review profile, but LSA wins on CPL in every category where both are available.

Conversion quality — the hidden tradeoff

LSA leads are higher volume but lower intent on average. Many are price shoppers comparing 3–5 'Google Screened' badges. Search Ad leads tend to be further down the funnel — they clicked through to your site, read your offer, and reached out. Close rates we see: LSA 18–28%, Search Ads 28–40%.

This means LSA's CPL advantage shrinks somewhat on a cost-per-job basis, but in most categories LSA still wins overall.

Ramp time and budget floors

LSA ramps in 2–6 weeks once Google Guarantee/Screened is approved (approval itself takes 1–4 weeks). Budget floor is essentially $0 — you only pay for leads, so a slow week costs you nothing.

Search Ads ramp in 1–2 weeks for click volume but 6–12 weeks to optimize CPA. Budget floor for a useful test in the East Bay: ~$1,500/month per category.

The recommended split for most East Bay service businesses

If LSA supports your category: 60–80% of paid budget into LSA, 20–40% into Search Ads to capture branded queries and commercial-intent searches LSA misses. Drop Search Ads if your branded search volume is low and LSA is delivering on volume.

If LSA doesn't support your category (dental, med spa, most B2B, niche trades): Search Ads + LSA-style review/reputation work + Local SEO to compensate.

Frequently asked

Do I need Google Guaranteed to run LSA?

Yes — Google Guaranteed for home services and Google Screened for professional services are the badges that unlock LSA. Approval requires background checks, license verification, and insurance docs. Plan 2–4 weeks.

Can I dispute bad LSA leads?

Yes. Wrong numbers, spam, and clearly out-of-area leads can be disputed inside the LSA dashboard. We typically see 8–15% dispute approval rates, which lowers effective CPL further.

Should I drop my Search Ads if LSA is cheaper?

Not entirely. Keep a small Search Ads budget for branded keywords (so competitors don't bid on your name) and high-intent commercial queries LSA doesn't surface for.