One hot week funds the quarter.

Your cost per lead triples in July. Plan the whole year around it.

In February, a Dallas HVAC click costs almost nothing and nobody is searching. In late July, when the metro hits its third consecutive 100-degree day, every contractor in DFW is bidding on the same terms and cost per lead can run three times the spring baseline. Both of those facts are true and both are useful.

The mistake is treating the year as one campaign with one budget. Shoulder seasons — March through May and September through October — are where you should be buying replacements, maintenance agreements, and duct work at low competition. Peak summer is where you take repair calls at whatever they cost, because your techs are booked solid and the constraint is capacity, not leads.

Write the calendar down. Decide in January what your peak-week daily cap will be and what you'll spend in October when your competitors go dark. Those two decisions matter more than any keyword you'll ever add.

What HVAC leads cost in Dallas.

DFW residential HVAC ranges. Peak numbers hold for roughly two to three weeks around the hottest stretch, then settle. First-cold-snap heating demand in November behaves the same way at smaller scale.

Five structural choices for a Dallas HVAC account.

• Split repair from replacement, permanently

  They're different buyers with different urgency, and they need different landing pages. Sharing a budget means the cheap repair click always wins and your replacement pipeline quietly starves through the shoulder season.

• Cap your peak-week spend at your truck capacity

  Buying more leads than you can service on a 104-degree Thursday produces angry voicemails and one-star reviews. Set the daily cap to fill your board, not to beat a competitor.

• Run maintenance-plan campaigns in March and September

  Agreements are the only thing that flattens the revenue curve. A $60 lead that produces a recurring member with priority service is worth more over three years than two summer repair calls.

• Bid on the age-of-system signal

  Searches like '20 year old ac unit repair or replace' and 'r22 refrigerant cost' come from homeowners on the edge of replacing. They're cheap, low volume, and they convert into the biggest jobs in your book.

• Adjust bids by ZIP heat and housing age

  Older housing in East Dallas and Garland generates repair and duct work. Newer Collin County construction generates warranty-adjacent replacements and IAQ upgrades. Same metro, different jobs — bid like it.

In July, the phone is your bottleneck — not the ads.

At $180 a lead, a call that rings out is a genuine financial event. Yet nearly every Dallas HVAC company we audit discovers 15–30% of peak-week calls went unanswered or ended without a booked appointment. No keyword change recovers that.

The fix is boring and enormously profitable: extra phone coverage staffed before the heat arrives, a script that books before it diagnoses, and text confirmations with an arrival window. During a heat wave the homeowner is calling four companies — the one that gives them a time first usually wins, even at a higher price.

Then use the summer to build next spring. Every repair over a certain dollar amount gets a documented replacement quote left behind and a follow-up in September when it's 82 degrees and nobody's panicking. That's how a hot July becomes an October replacement calendar.

Questions from Dallas owners

What should a Dallas HVAC company budget for Google Ads?

A residential shop competing in core DFW ZIPs usually needs $3,000–$6,000 per month year-round, with peak summer weeks running two to three times the shoulder-season daily budget. Seasonal-only advertisers pay more per lead because they re-enter the auction with no recent conversion history.

Should I advertise $89 tune-ups?

Only in shoulder season, and only if your techs are trained to convert them. A tune-up campaign in July fills your board with low-margin work while $300 repair calls go to competitors. In March, the same offer is one of the cheapest ways to get inside a home before replacement season.

How do I get more replacement leads instead of repairs?

Fund a separate replacement campaign, bid on system-age and refrigerant keywords, send that traffic to a page with financing and efficiency comparisons, and feed installed job values back into Google so bidding optimizes for revenue rather than lead count.

Is it worth advertising in a Dallas winter?

Yes, at lower spend. North Texas heating demand is real but brief, concentrated around the first hard cold snaps. More importantly, winter is when replacement shoppers research without pressure, and clicks are a fraction of summer prices.