HVAC Google Ads resource
LSA vs Google Ads for HVAC: the decision matrix per shop size
Local Service Ads (LSA) and Google Ads are different products. LSA is pay-per-lead, Google-vetted, displays as a green-checkmark card at the top of mobile search. Google Ads is pay-per-click, advertiser-managed, displays as text or PMax surfaces. For a mid-sized HVAC shop (5-15 trucks, $5K-$15K monthly PPC), the right answer is run both. Solo shops should usually be LSA-only. Shops above 15 trucks need both plus brand defense plus PMax. The decision matrix below.
Quick answers
Why both LSA and Google Ads matter for HVAC
LSA is Google's pay-per-lead product for local services. The shop applies, Google verifies licensing and insurance and reviews the business; if approved, the shop appears as a green-checkmark 'Google Guaranteed' card at the top of mobile search results for relevant local queries. The shop pays only when a lead is generated (a phone call or a message form). The price per lead is set by Google, varies by service category and geography, and typically runs $25-$80 for HVAC in the Boston metro.
Google Ads is the pay-per-click product. The shop writes ad copy, picks keywords, sets bids, and pays per click. The price per click is set by the auction; HVAC non-branded queries in the Boston metro run $8-$25 CPC. Conversion rate from click to booked job determines effective cost per booked job (typically $80-$300 in healthy accounts).
These are different products with different strengths. LSA wins on bottom-of-funnel ready-to-book intent and on the trust signal of Google verification; Google Ads wins on top-of-funnel research, brand defense, retargeting, and service-specific landing pages. For a mid-sized HVAC shop the answer is run both. For solo shops the answer is usually LSA-only because the management overhead of Google Ads is hard to justify on $1K-$3K monthly budgets.
Your shop
The decision matrix by shop size
Five shop-size profiles. Find yours; the recommended channel mix follows. Adjust for service-line mix (installation-heavy shops can justify more Google Ads investment than service-call-heavy shops).
Audit logic
How the audit reviews your LSA + Google Ads mix
The audit reviews both channels separately and then together. The Google Ads side gets the standard 8-step review (structure, tracking, copy, landing pages, negatives, geo, schedule, quality) plus PMax-specific checks. The LSA side gets configuration review (eligibility settings, hours of operation, lead-quality dispute history, weekly budget and pacing).
When both channels are running, the audit cross-references lead-quality. LSA leads come with a built-in dispute mechanism (you can dispute leads as non-qualifying for Google credit), and the dispute rate is a useful proxy for lead quality. Google Ads leads have no built-in dispute, but lead-to-booking conversion rate (when CRM data is shared) tells the same story. Comparing the two over 90 days reveals which channel is producing higher-quality leads for your shop specifically.
When only one channel is running, the audit recommends the missing channel with a specific budget recommendation based on shop size and current ad spend. For solo shops running Google Ads, the recommendation is usually 'pause Google Ads, move budget to LSA.' For large shops running LSA-only, the recommendation is 'add Google Ads brand defense first, then non-branded.'
Related pages
Where this connects
LSA + Google Ads is a channel-mix question; the rest of the cluster covers the tactical execution within Google Ads once you decide the share.
Math gate
Good ROAS for HVAC Google Ads →
Once the channel mix is set, the ROAS gate is the same: 1 divided by gross margin. The ROAS page covers the formula and the branded-vs-non-branded benchmarks that decide whether each channel is profitable.
Budget context
HVAC Google Ads cost →
The sibling page on cost. Budget recommendations by shop size live there. Read this page for the channel split, then the cost page for the absolute monthly numbers.
PMax fix
Performance Max not converting →
Performance Max is part of the Google Ads channel mix. The placement-quality fix is what gets PMax converting; without it, PMax burns budget against the overall channel mix.
Money page
HVAC Google Ads management →
The vertical-level page: positioning, audit substrate count, common findings across every HVAC account audited. Read this for the vertical specialization stance separate from this page's channel-mix decision.
Send your domain. Get an LSA + Google Ads audit back.
Free, ~48-hour turnaround, no sales call. The audit reviews your LSA configuration (when accessible), your Google Ads setup, and the lead-quality split between the two so you can decide where to push spend.
Get the audit