HVAC PPC Mistakes: 10 Things Killing Your Campaign Performance

By Harham Maeng. Updated September 28, 2026.

HVAC PPC is its own beast. The seasonality is brutal. Emergency intent looks nothing like routine intent. The keyword set spans heating, cooling, refrigerants, ductwork, indoor air quality, and a dozen sub-services with completely different margins. Most generic Google Ads advice doesn’t account for any of this.

Underperforming HVAC accounts tend to share the same patterns. The account was set up by someone who built ecommerce campaigns or attorney campaigns, and the structure leaks money everywhere because HVAC was an afterthought. Or the account was built three years ago when HVAC search behavior looked different, and it hasn’t been updated since. Or the contractor built it themselves with Google’s default recommendations and trusted the system.

This article covers 10 common mistakes in HVAC accounts. If you recognize three or more, your account is bleeding money.

Mistake 1: Bidding on “AC Repair Near Me” Without Geo-Fencing to Your Actual Service Area

“AC repair near me” is one of the highest-volume HVAC search queries in summer. Every HVAC contractor wants to win it. Contractors lose money on it when they show for searchers outside their service radius.

Google’s default location setting (People in, or interested in, your targeted locations) is the problem. Switch it to “Presence: People in or regularly in your targeted locations” only. Then build your radius around your actual operating area, zip code by zip code if needed. Not a circle around your downtown HQ. The zip codes you actually dispatch to profitably.

Mistake 2: Mixing Emergency and Tune-Up Keywords in the Same Campaign

An emergency AC repair searcher at 9 p.m. on a Saturday is not the same buyer as a tune-up shopper at 11 a.m. on a Tuesday. They have different conversion rates, different ticket sizes, different price sensitivities, and different willingness to wait.

Yet many HVAC accounts have “AC repair,” “emergency AC repair,” “AC tune-up,” and “AC maintenance” all in the same campaign, often the same ad group. The bids are the same. The ads are the same. The landing pages are the same.

Split them. Emergency keywords get a dedicated campaign with 24/7 ad scheduling, premium bids, and a landing page that screams “Same-Day, On Your Way.” Tune-up keywords get a separate campaign with business-hours scheduling, lower bids, and a landing page focused on scheduling convenience and seasonal value. Two campaigns instead of one let the algorithm optimize each intent separately.

Mistake 3: Not Separating Heating and Cooling Seasons

In most of the country, HVAC has two distinct seasons that produce wildly different search behavior. Summer cooling demand and winter heating demand. A single year-round campaign with year-round keywords leaves money on the table during peak season and burns money during shoulder season.

The right structure has at minimum: a cooling-focused campaign that ramps up in March, peaks May through August, and ramps down in September; a heating-focused campaign with the inverse calendar; a year-round maintenance campaign for tune-ups and indoor air quality; and an emergency campaign that runs all 12 months.

Budget should shift seasonally. For example, an account might run 70 percent of summer budget through cooling, 60 percent of winter budget through heating, and 30 to 40 percent through maintenance and emergency campaigns during shoulder months. One-campaign accounts cannot do this. They flatline at average performance.

Mistake 4: No Call Duration Filter on Conversion Tracking

If you count every phone call as a conversion, you’re counting wrong numbers, hang-ups, telemarketers, and existing customers calling about their bill. None of those represent new revenue.

A call duration filter solves this. Most call tracking platforms let you require a minimum call duration (typically 60 to 90 seconds) before the call counts as a conversion. That single filter removes junk conversions.

Smart Bidding stops chasing the patterns that produced 12-second hang-ups and starts chasing the patterns that produced 4-minute genuine inquiries.

Mistake 5: Generic Landing Pages for Specific Searches

The HVAC contractor who bids on “ductless mini-split installation” and lands the click on a generic homepage with 14 services listed is paying full price for a click.

Build dedicated landing pages for your top 5 to 7 service categories. Mini-split installation is one. Furnace replacement is another. Emergency AC repair, AC installation, heat pump installation, indoor air quality, and routine maintenance round out a typical set. Each page has one offer, one form, the relevant trust signals (manufacturer certifications, financing options specific to that service), and a CTA that matches the search intent.

This is the single highest-payoff change you can make in an HVAC account once tracking is clean.

Mistake 6: Bidding on “Furnace Repair” in July

Search demand for “furnace repair” exists year-round (people have furnace issues in any season, especially in commercial buildings or rental properties), but the volume in July is a tiny fraction of December. Bidding aggressively on it through the summer wastes spend on a low-volume, low-conversion keyword.

The fix isn’t to pause the keyword. It’s to scale bids and budgets seasonally. Use scripts or rules to reduce bids on out-of-season keywords by 60 to 80 percent during off-season months. Increase them again as the season approaches. Many HVAC accounts treat their keyword bids as fixed numbers across all 12 months. That leaves efficiency on the table.

Mistake 7: No Equipment Brand Negative Keywords

HVAC searchers often include brand names: “Carrier AC repair,” “Lennox furnace replacement,” “Trane installation.” If you’re an independent contractor who services multiple brands, those are great keywords. If you’re a single-brand dealer, the other brands are negatives.

The mirror mistake: bidding on equipment brand names with zero context. “Carrier” as a broad match keyword in an HVAC account is going to trigger ads on aircraft carrier searches, carrier strike group searches, mail carrier searches, and dozens of other unrelated queries. Always use brand keywords with a service modifier or in phrase/exact match, and always pair them with negatives for the irrelevant senses of the word.

Mistake 8: Treating Local Services Ads as Optional

LSA is not a competitor to your Google Ads campaign. It’s a complementary product. For HVAC, published Local Services Ads cost per lead runs below published Google search ads cost per lead.

The mistake is treating LSA as either a substitute for Google Ads (it’s not, the inventory is smaller and the intent is narrower) or as something you’ll get to later (it takes weeks to verify and you should already be running it). Run both simultaneously. LSA captures the “I want someone now” buyers at the top of the page. Google Ads captures everything else.

Mistake 9: Not Using Seasonal Smart Bidding Adjustments

Google’s seasonality adjustments feature lets you tell Smart Bidding about predictable conversion rate changes ahead of time. A heat wave forecasted for next week. A cold snap. A holiday weekend when nobody books a tune-up.

Most HVAC accounts never use this feature. Without it, Smart Bidding has to discover the change after it starts, so the first days of any anomaly are mis-bid. With it, you preemptively tell the algorithm “expect conversion rate to spike 60 percent for 7 days starting Friday” and bids adjust immediately.

This matters most during weather events.

Mistake 10: Reviewing the Account Monthly Instead of Daily

HVAC is volatile. Weather changes the auction. A competitor’s emergency campaign launching mid-week can spike CPCs overnight. A landing page going down silently can erase a day of conversions before you notice. None of these problems show up in time when you’re checking the account once a month.

The right cadence for HVAC accounts is daily spend pacing and conversion volume checks, weekly search terms and negative keyword reviews, biweekly bid strategy and budget review, and monthly creative refresh. Most contractors don’t have time for that. That’s why HVAC accounts get managed by agencies. The question isn’t whether the work needs doing. It’s who’s doing it.

What Fixing These Looks Like

Fix the mistakes above in sequence, not all at once. The order we usually run: tracking and call duration filter first, geo-fencing second, campaign segmentation by intent and season third, landing pages fourth, LSA fifth, seasonality adjustments and bid strategy refinement ongoing.

Get a Free Google Ads Audit

If you run HVAC PPC and suspect three or more of these mistakes apply, request a free Google Ads audit. You get a written list of what is broken, with screenshots. No call required. Start the free audit here.

About RYN Digital. RYN Digital manages Google Ads for local service businesses, home services first. $1,000 a month flat regardless of spend, month to month with 30 days notice, no setup fee, and the account stays in your name.

Frequently Asked Questions

What’s a realistic CPL for HVAC Google Ads in 2026?

It depends on market and account quality. LocaliQ’s home services benchmarks put the median search ads cost per lead at $127.74 for air conditioning and $129.02 for heating and furnaces, from US campaigns run April 2024 to March 2025.

Should HVAC contractors use Performance Max?

Carefully. Performance Max can work for HVAC if you have strong conversion data and tight asset groups by service category. It’s a disaster if you launch it on top of weak tracking, because it will optimize toward spam and low-quality conversions even faster than Search campaigns. Run Performance Max as a supplement to well-structured Search campaigns, not as a replacement.

How much should I spend on HVAC PPC monthly?

The right starting point depends on close rate and average ticket size. Use an ROI calculator with your own numbers, not industry averages.

How long until HVAC Google Ads start producing real calls?

With clean conversion tracking from day one, real calls can start soon after launch. An account that goes weeks without real calls has a structural issue, not a patience issue.

Can I run heating and cooling campaigns simultaneously year-round?

Yes, and you should. Both have year-round demand at lower volumes. The mistake is running them at equal budgets year-round. Use seasonal budget shifts: heavy on cooling in summer, heavy on heating in winter, with maintenance and emergency running steady through shoulder seasons. Pausing campaigns entirely between seasons resets the learning phase and costs you when the season ramps up.