Here’s how most business owners decide how much to spend on Google Ads: they pick a number that feels safe.
$500 because it won’t hurt too bad if it doesn’t work. $2,000 because someone on a podcast said so. $300 because that’s what’s left after payroll.
None of those are strategies. They’re guesses. And guessing with ad spend is how you end up three months in, $4,000 lighter, with nothing to show for it.
So let’s fix that. Here’s what you actually need to spend on Google Ads as a local service business in 2026, with real numbers, not vague percentages.
Why the “Percentage of Revenue” Advice Doesn’t Work
You’ve probably seen it: “Spend 5-10% of your revenue on marketing.” Neil Patel says it. HubSpot says it. Google’s own resources dance around it.
The problem? That formula ignores everything that matters.
A contractor doing $800,000 a year and a brand-new medspa doing $120,000 have wildly different cost-per-click landscapes, close rates, and average ticket sizes. Telling both of them to spend “7% of revenue” on Google Ads is like telling a marathon runner and a sprinter to wear the same shoes.
How much you should spend on Google Ads depends on three things: what a click costs in your industry, how many clicks it takes to get a lead, and what a lead is worth to your business. Everything else is noise.
The Real Minimum Viable Budget (By Industry)
Let’s talk floors. Not aspirational budgets. Not “if you really want to dominate” budgets. The minimum you need to spend on Google Ads to get enough data and enough leads to know if it’s working.
Here’s what we see across our clients:
Contractors (HVAC, plumbing, roofing, electrical): $1,500-$2,500/mo. Average CPC runs $8-$25 depending on the trade and metro area. You need at least 60-80 clicks per month to generate meaningful lead volume. Below $1,500, you’re buying 3-4 clicks a day. That’s not a campaign. That’s a coin flip.
Medspas and aesthetic clinics: $2,000-$3,500/mo. CPCs for “Botox near me” or “laser hair removal” hit $15-$40 in competitive metros. A medspa we work with in Atlanta spends $2,800/mo on Google Ads and pulls 40-60 leads monthly at a $47 CPL. Drop that budget to $800 and you’re looking at maybe 12 leads. Not enough to fill a schedule.
Consultants and coaches: $1,000-$2,000/mo. Lower CPCs ($5-$15) but longer sales cycles. You need volume to find the people who are actually ready to book a call, not just browsing.
Home services (cleaning, landscaping, pest control): $1,000-$1,800/mo. CPCs are lower ($6-$18), but you’re fighting Local Services Ads and Map Pack for attention. Budget needs to account for both search ads and LSAs if they’re available in your category.
If you’re spending below these floors? You’re not running ads. You’re donating to Google.
What $500 Can Actually Do (And What It Can’t)
Let’s be honest: $500/mo on Google Ads isn’t useless. But it’s limited.
At $500/mo with a $15 average CPC, you’re getting about 33 clicks. If your landing page converts at 10% (which is solid), that’s 3 leads. Three.
Three leads might be fine if your average job is $15,000 and you close 1 in 3. That’s a $15,000 return on $500. Great math.
But three leads is also a terrible sample size. You can’t optimize a campaign on 3 leads a month. You can’t A/B test headlines. You can’t figure out which keywords are wasting money and which ones are printing it. You’re flying blind.
So $500 works if your ticket size is high and your close rate is strong. For everyone else, it’s the budget equivalent of putting one chip on the table and wondering why you’re not winning.
The Number That Actually Matters: Cost Per Lead
Forget your total ad spend for a second. The number you should obsess over is cost per lead.
Here’s why: if you’re spending $2,000/mo and getting leads at $35 each, that’s 57 leads. If your close rate is 25% and your average job is $3,000, that’s $42,750 in revenue from $2,000 in ad spend. That’s a 21:1 return.
But if you’re spending $2,000/mo and your CPL is $200, you’re getting 10 leads. Same close rate, same ticket, that’s $7,500 in revenue. Still profitable. But barely.
The difference isn’t budget. It’s efficiency. And efficiency comes from three things your Google Ads account needs before you increase spend by a single dollar:
A landing page that converts. Not your homepage. A dedicated page built for the one thing the ad promised. We’ve seen conversion rates jump from 4% to 14% just by switching from a homepage to a focused landing page.
Negative keywords. If you’re a plumber running ads on “plumber” without negatives, you’re paying for clicks from people searching “plumber salary,” “how to become a plumber,” and “plumber snake Home Depot.” That’s 30-40% of your budget, gone.
Conversion tracking that works. If you can’t tell Google which clicks turned into phone calls and form fills, the algorithm can’t optimize. You’re paying full price for dumb traffic. Google Tag Manager, call tracking through GoHighLevel or CallRail, and proper event setup, that’s the baseline.
When You’re Ready to Scale (And When You’re Not)
Here’s the rule: scale your Google Ads budget when your cost per lead is stable and your close rate can handle more volume.
If your CPL is $40, your close rate is 30%, and your team can handle 20 more leads a month, increase budget. That’s a system that works. Pour more fuel on it.
If your CPL is $120 and you don’t know why, don’t spend more. Fix the landing page. Fix the keywords. Fix the tracking. More budget on a broken campaign just means more waste, faster.
And if you’ve never run Google Ads before? Start at your industry’s minimum viable budget for 90 days. Don’t judge it at 30 days. Google’s algorithm needs 2-4 weeks just to learn who’s clicking and converting. Give it time, watch the CPL, and make decisions with data, not feelings.
The Bottom Line
How much should you spend on Google Ads? Enough to get real data, generate real leads, and make real decisions. For most local service businesses, that’s $1,500-$3,000/mo.
Anything less and you’re guessing. Anything more without tracking and you’re just guessing louder.
Want to know exactly what budget makes sense for your business before you spend a dollar? We’ll run a free ads audit, look at your market, your competitors’ CPCs, and your close rates, and tell you the honest number. No pitch, no pressure. Just math.
