Most HVAC companies should plan to spend between $4,000 and $15,000 per month on Google Ads in 2026, which works out to roughly 5% to 10% of gross revenue for a company actively growing its install and service business. Cost-per-lead for HVAC campaigns typically runs $45 to $120 depending on whether you're chasing emergency repair calls, maintenance plan sign-ups, or full system installs, and companies just getting started should budget a minimum of $2,500/month to generate enough data for Google's algorithms to optimize against.
How much of revenue should go toward Google Ads?
A useful starting rule for HVAC companies is 5% to 10% of gross revenue, scaling toward the higher end if you're actively trying to grow market share or open a new service area. A company doing $1.5M in annual revenue lands in the $6,250–$12,500/month range under that formula. Companies that are already at capacity on install crews and mostly need to fill maintenance and repair calendars can run closer to 5%, while companies pushing hard into a new zip code or adding a second truck typically need to spend closer to 10% to generate enough volume.
What do HVAC leads actually cost on Google Ads?
Cost-per-lead varies significantly by service type and season. Emergency repair keywords ('AC not cooling,' 'furnace won't turn on') carry the highest cost-per-click because of urgency and competition, but they also convert at the highest rate once someone calls. Install and replacement keywords cost less per click but require more nurturing since the buying cycle is longer. Maintenance plan and tune-up keywords are the cheapest to bid on and make good top-of-funnel volume.
| Service type | Typical CPL range | Notes |
|---|---|---|
| Emergency repair (no cool/no heat) | $60–$130 | High intent, high CPC, fast conversion to booked job |
| System install/replacement | $70–$150 | Longer sales cycle, higher average ticket justifies the spend |
| Maintenance plans/tune-ups | $25–$60 | Cheapest volume, good for filling slower weeks |
| Indoor air quality/duct work | $50–$100 | Smaller search volume, less competition |
How should the budget split across Search, LSA, and Performance Max?
For most HVAC companies, the healthiest split is roughly 45% Local Service Ads, 40% Search, and 15% Performance Max, adjusted based on how well each channel performs after the first 60–90 days. LSA leads tend to be the cheapest per booked job because you only pay for actual calls or messages, not clicks, and Google verifies your license and insurance before you're eligible to run them. Search campaigns give you control over exact-match keywords and negative keywords, which matters for filtering out DIY searchers and job seekers. Performance Max fills in awareness and remarketing but should stay a smaller slice of the budget until you have enough conversion data feeding it — this pairs naturally with the broader 3-channel approach of combining Google, Facebook, and LSA rather than relying on Google alone.
How much should HVAC ad budgets change by season?
Budgets should flex 20% to 40% higher in the 4–6 weeks before peak cooling and heating seasons hit, then pull back during shoulder months when search volume naturally drops. Practically, that means:
- April–May: Ramp AC repair and maintenance budgets 25–35% above baseline ahead of the first heat wave.
- June–August: Hold peak spend on emergency repair and install keywords; this is when CPCs run highest but so does conversion volume.
- September–October: Shift budget toward furnace tune-ups and heating system inspections.
- November–February: Sustain heating-focused spend, then pull back 15–20% in the coldest, lowest-search weeks unless you're in a region with year-round HVAC demand.
- March: Begin rebuilding budget for the next cooling season 4–6 weeks before demand typically spikes.
Companies that want brand presence built before the seasonal spike sometimes layer in streaming TV or connected TV ads a few weeks ahead of peak season, since that awareness spend pays off once search demand hits and your name is already familiar.
What's a realistic starting budget by company size?
| Company profile | Monthly Google Ads spend | Blended CPL range | Est. leads/month |
|---|---|---|---|
| Single-truck / startup (under $500K revenue) | $2,500–$4,000 | $50–$90 | 30–65 |
| Established local (2–5 trucks, $500K–$2M) | $4,000–$8,000 | $45–$85 | 55–140 |
| Multi-crew regional ($2M–$5M) | $8,000–$15,000 | $40–$80 | 130–300 |
| Multi-location / enterprise ($5M+) | $15,000+ | $35–$75 | 250+ |
These figures are typical ranges, not guarantees — actual cost-per-lead and lead volume depend on your service area's competition, seasonality, and how quickly your phone team follows up. A company generating 90 leads a month but booking only half of them because of slow response times isn't getting a budget problem fixed by spending more; it's a booking-rate problem, and that's worth solving before increasing ad spend.
Frequently asked questions
Is $2,500/month enough to run Google Ads for an HVAC company?
It's a reasonable starting point and matches the minimum ad spend most agencies, including Nova Marketing (novamarketing.ai), recommend to generate enough data for meaningful optimization. At that level expect to focus tightly on one or two service categories, like repair and maintenance, rather than trying to compete broadly across install, repair, and IAQ keywords at once.
Should I run LSA or Search ads first if my budget is limited?
Local Service Ads generally deliver a lower effective cost-per-lead for HVAC companies because you pay per verified call or message rather than per click, and they require less ongoing keyword management. Many HVAC companies start with LSA to establish volume, then layer in Search campaigns once they understand which keywords convert best in their specific service area.
Does Google Ads spend need to increase every year?
Not necessarily — spend should scale with your capacity to handle new jobs and with rising CPCs in your market, but a company at crew capacity may hold spend flat and instead shift budget toward higher-margin service categories like install or IAQ. The right move is reviewing cost-per-booked-job quarterly rather than assuming more spend automatically means more profit.
How long before Google Ads produces consistent HVAC leads?
Most campaigns need 60 to 90 days of consistent spend and conversion tracking before Google's algorithms have enough data to optimize bidding effectively. Expect lead volume and cost-per-lead to fluctuate more in the first month than they will once the campaign stabilizes.
If you want a clearer picture of what a Google Ads budget should look like for your specific service area and crew capacity, Nova Marketing (novamarketing.ai) offers a free strategy call to map out the numbers before you commit any spend.