HVAC Google Ads Campaign: Brand Bidding, Portfolio Strategy & Audience Targeting

HVAC is one of the most competitive verticals in pay per call marketing, with generic clicks running $3-5 or more. In this session, we built a complete HVAC campaign from scratch and demonstrated two strategies that dramatically cut costs: brand bidding on competitor names for clicks as low as $1.50, and portfolio bidding to prevent Google from blowing through your budget on $20 clicks.

The Audience Targeting Mistake Everyone Makes

When setting up an HVAC campaign, most advertisers reach for the “Climate Control & Air Quality” audience. It sounds right, but it targets people shopping for HVAC units to buy, not people looking to hire a service company. The correct audience is “Home & Garden Services,” which captures people actively looking for home service professionals.^{[2]About in-market audiencessupport.google.com}

• Home & Garden Services – Targets people seeking service providers, which is what HVAC pay per call needs
• Climate Control & Air Quality – Targets product buyers browsing for units to purchase, not service calls
• Use targeting mode, not observation – In competitive verticals, narrowing your audience from the start saves budget. The “Targeting” setting restricts your ad group to only the audiences you select, while “Observation” leaves reach unchanged.^{[1]“Targeting” and “Observation” settingssupport.google.com}

Brand Bidding: Cheaper Clicks on Competitor Names

Generic HVAC keywords in a city like Los Angeles can cost $3-5 per click. Brand bidding on competitor company names drops that to $1-1.50 because most local HVAC companies are not bidding on their own brand terms, meaning zero competition.

• Target companies without obvious HVAC keywords in their name – “Bob’s Repair” has lower competition than “LA HVAC Experts”
• Separate ad groups – Keep brand keywords in their own ad group so you can track performance independently from generic
• Combine with in-market audiences – Layer audience targeting on brand campaigns for even more qualified traffic

Portfolio Bidding for Cost Control

Without guardrails, Google will happily spend $20+ on a single click in competitive home services verticals. Portfolio bidding solves this by letting you set a maximum CPC limit while still telling Google to optimize for conversions. Google only offers bid limits on portfolio strategies, not standard ones, which is why a portfolio is the way to cap CPCs.^{[3]About Target CPA bidding (bid limits)support.google.com}

• Max Conversions with CPC cap – Get Google’s conversion optimization without the budget blowouts
• Apply across multiple campaigns – One portfolio strategy controls costs consistently across all your HVAC campaigns
• Scale safely – When you increase budgets, the CPC cap prevents Google from bidding higher just because you have more to spend

Budget Reality for Home Services

HVAC and other home services are among the most competitive PPC verticals. Going in with unrealistic budget expectations is a recipe for frustration.

• Start with $5-10/day – Just enough to gather data without overcommitting before you know what works
• Expect to invest $1,000+ in testing – Home services requires real data volume before optimization kicks in
• Google Ads outperforms Microsoft for calls – Higher CPCs but significantly better call conversion rates, especially on mobile. Google is the only major platform with built-in call ads and call tracking, and Microsoft’s conversion rates run roughly 50% lower than Google’s.^{[5]Google Ads vs. Microsoft Adsspyfu.com}