Set the budget from capacity, not from a platform suggestion.
Google Ads will happily suggest a daily budget based on keyword volume and competition. That number tells you nothing about whether the business can answer the calls, qualify the enquiries, and fulfil the work. A useful budget starts with what the team can handle this month and what the owner is prepared to spend before a useful verdict is possible.
Pay-per-click vs pay-per-lead: the math that matters
Google Search Ads charge per click. Local Services Ads charge per lead. The difference is not academic — it changes how you think about spend.
Example: if a Search campaign produces 100 clicks at $5.00 each, that is $500 of spend. If 10 of those clicks become leads, the cost per lead is $50.00. If 5 become leads, the cost per lead is $100.00. The platform will not tell you which outcome you got; only a conversion-tracked account can.
LSA charges you per call or message, so the cost per lead is visible on the platform. But a "lead" in LSA is any contact — the business still has to qualify it, book the job, and confirm the value.
Industry cost-per-lead benchmarks and minimum budgets
The table below gives typical cost-per-lead ranges and minimum monthly budgets based on what the platform produces in well-managed accounts. These are starting points, not guarantees.
| Industry | Typical CPL | Recommended monthly minimum |
|---|---|---|
| Residential cleaning | $25 – $45 | $750 – $1,200 |
| Plumbing and HVAC | $45 – $85 | $1,500 – $2,500 |
| Mobile detailing | $20 – $35 | $600 – $1,000 |
| Pest control | $30 – $50 | $900 – $1,500 |
The ranges above are typical market figures. Your actual results depend on the trade, the market, and how well the account is built and managed.
The golden rule: budget for 20 – 30 leads per month
Smart bidding algorithms need enough conversion data to learn. A budget that produces fewer than 20 leads per month leaves the algorithm guessing. The practical rule: your monthly budget should be enough to produce at least 20 – 30 leads at the expected cost per lead.
For example, if your expected CPL is $30, plan for at least $600 – $900 per month. If the budget cannot support that math, the test is not fair — the algorithm will not have enough data to optimise, and the results will be unreliable.
Budgets under $500 per month are hard to optimise for any trade. The algorithm does not get enough weekly conversion data to learn, and the test period stretches beyond what most owners are willing to wait.
Allocate across channels
For businesses running both Search Ads and LSAs, a practical starting allocation is 70% Search and 30% LSA. Search Ads give you keyword control, landing-page testing, and deeper tracking. LSAs supplement with pay-per-lead simplicity and a trust badge. As the test matures, adjust the split based on which channel produces better cost-per-booked-job, not just cost-per-lead.
The three biggest budget leaks
Most wasted spend falls into three categories. Each one is preventable with proper setup.
1. Broad match without negatives. A broad-match keyword like "house cleaning" will trigger ads for searches like "how to clean oven door glass." Without a negative keyword list, the budget trains on irrelevant queries. This is the single most common source of wasted spend in local service accounts.
2. Location settings left on default. Google Ads defaults to "Presence or interest," which means your ads show to people who have shown interest in your location but may not be physically there. A residential cleaning company in Orlando should not pay for clicks from people browsing from New York. Switch to "Presence: people in or regularly in your targeted locations."
3. Broken or missing conversion tracking. Without accurate conversion data, the bidding algorithm optimises for clicks, not for leads. It will happily spend your budget on traffic that never becomes a phone call or a form fill. Tracking must be verified before the first dollar is spent.
The cleaning company case study on this site shows what fixing these three leaks looks like in practice: the account went from 3 reported leads at $149.00 each to 51 leads at $27.89 each in 60 days, once the structure, negatives, and tracking were rebuilt. The full record is in the evidence library.
Write down the bounded first bet
Before launch, put three things in writing:
- The spend cap — the maximum amount you are prepared to spend in the proving period
- The proving period — how long the test runs before the verdict date
- The verdict date — the day the Ledger says continue, adjust, or stop
These are safety rails, not a guarantee. They give the owner a known maximum downside and a date when hoping ends. If the numbers say stop, the report says stop.
Questions business owners ask
What is a fair starting budget for my trade?
The table above gives a starting range. The real answer depends on your market, your job value, and how many new jobs you can handle. A plumbing company that books jobs worth $800 can justify a higher test budget than a cleaner whose average ticket is $150. The budget should be enough to produce 20 – 30 leads in the proving period.
Can I start with a small budget and scale later?
You can, but the test must be fair. A budget that produces 5 leads in a month is not enough data for the algorithm to learn from, and the results will be noisy. Start with enough to produce a real signal, then scale what is proven.
How do I know if the budget is being wasted?
Check the search terms report. If you see irrelevant queries triggering your ads, the negative keyword list is missing entries. Check the location report. If clicks are coming from outside your service area, the location setting needs to change. Check the conversion tracking. If the platform reports leads but the phone is not ringing, the tracking is broken. A free audit catches all three.
When should I increase the budget?
When the numbers prove the return at the current level. The proving period exists to answer that question. If the Ledger shows a positive trend and the business can handle more work, increase the budget. If the Ledger says stop, fix the account before spending more.
I count conservatively. Every untracked job is your upside, not my credit.