When a home service company moves from Local Services Ads to Performance Max pay-per-lead, the first setting that trips people up usually isn’t anything fancy. It’s the budget. On Local Services Ads you picked a weekly number and Google spread it out for you. Now the campaign lives inside your regular Google Ads account, and it follows Google Ads habits: a daily budget, monthly pacing, and reporting that looks like the rest of your ad spend.
None of that is hard once you’ve seen it laid out. It’s just different, and the interface doesn’t explain the difference. So here’s how I’d set the budget from scratch: where the starting number comes from, how daily budgets actually spend, and what to watch before you change anything.
Start from what a lead is worth, not from what you spent last year
The tempting move is to take last year’s Local Services Ads spend, divide it by twelve, and call it done. That’s a reasonable starting point for the dollar amount, but it skips the question the budget is supposed to answer: how many leads can you afford, and how many can you actually handle?
Here’s the math I walk through with owners. Say your average job is $6,000 and you close about 30 percent of the leads that reach an appointment. That means a lead is worth roughly $1,800 in revenue to you. If your margin lets you spend, for example, 10 percent of revenue to win a job, you can afford around $600 in marketing per booked job. At a 30 percent close rate, that works out to a ceiling of about $180 per lead before the math stops making sense.
Your numbers will be different, and that’s the point. Once you know your ceiling, the budget question gets simpler. If your leads have been costing $90 and your ceiling is $180, you’ve got room to grow. If they’ve been costing $170, the budget isn’t really the lever. Close rate or targeting probably is.
Turning a weekly number into a daily budget
Performance Max works on a daily budget, but Google treats that as an average across the month, not a hard cap on any given day. On a busy day the campaign can spend more than your daily figure, and on a quiet day it’ll spend less. Over a month, it aims to land close to your daily budget times the number of days.
So the conversion is simple. Take the monthly amount you’re comfortable with and divide by about 30.4, the average number of days in a month. A $3,000 month becomes a daily budget of roughly $99. Don’t divide a weekly number by seven and assume you’ll spend exactly that each week. Some weeks will run over and others under, and that’s normal.
What I’d avoid is setting the daily budget high as a safety margin and planning to watch it. Because a single day can overspend, a daily budget set well above what you want to spend will eventually spend it. Set the number you actually mean.
How many leads the budget can buy
This is the check most people skip. Divide your daily budget by your expected cost per lead and you’ll know how many leads a day you’re funding. If your daily budget is $99 and leads are running around $95, you’re paying for about one lead a day. That’s fine for a small crew. It’s too thin if you’ve got three estimators waiting for calls.
It also works in reverse. If the budget buys two leads a day but your office can only return one call promptly, more budget won’t help much. The leads will come in, but fewer of them will turn into booked jobs. I’ve watched a company with perfectly healthy lead volume get only about two thirds of its leads to a scheduled appointment. Tightening that up added around fifty appointments a month without another dollar in ad spend.
The first few weeks: set it and leave it alone
A new Performance Max campaign needs time to learn who converts. Every meaningful budget or target change restarts part of that learning. So I’d pick your starting budget, confirm the tracking is recording each lead once, and then leave the budget alone for at least two to three weeks unless something is clearly broken.
If you do need to adjust, move in steps of about 15 to 20 percent rather than doubling or halving. Smaller moves let the campaign adapt without resetting everything it’s learned. I go into the rest of that ramp-up period in your first 60 days on Performance Max pay-per-lead.
Two numbers that tell you when to raise the budget
Once the campaign has settled, two numbers do most of the work.
- Impression share lost to budget. This is the one I spend the most time teaching. It doesn’t mean customers looked at you and chose a competitor. It means your daily budget ran out and you stopped showing for part of the day. If it’s sitting at 30 percent, roughly a third of your possible visibility is going unused for budget reasons alone.
- Cost per booked job. Not just cost per lead. If leads are cheap but few of them book, raising the budget buys more of the same. If cost per booked job is comfortably under your ceiling, you’ve earned the right to spend more.
When both line up, meaning you’re losing a real share of impressions to budget and your cost per booked job has room, that’s a clear case for an increase. When only the first one is true, look at lead handling before you add spend. I wrote more about the difference between those two numbers in cost per lead vs cost per booked job.
Where to find the numbers
In Google Ads, open Campaigns and click into your Performance Max campaign. Your average daily budget sits in the campaign settings. For impression share, go back to the Campaigns view, open the column options, and add the impression share columns, including the one for impression share lost to budget, if they’re available for your campaign type. Set the date range to the last 30 days so one odd day doesn’t skew the picture.
For cost per booked job you’ll need one number that isn’t in Google Ads at all: how many of those leads actually booked. Pull it from your CRM or your scheduling calendar once a month and divide your ad spend by it. It takes ten minutes and it’s the most useful number in the whole account.
Plan for the season, not just the month
Most home service trades aren’t flat across the year. Demand builds in some months and fades in others, and a budget that’s right in March can be too tight in October. Nothing in the campaign settings will remind you of that, so I’d put a note on the calendar a few weeks before your busy season to revisit the number. There’s a full walkthrough of that in why a flat ad budget works against seasonal demand.
What good looks like
- A daily budget that’s your intended monthly spend divided by about 30.4, with no hidden safety margin.
- Cost per lead comfortably under the ceiling you worked out from job value and close rate.
- Impression share lost to budget under about 20 percent, unless you’re capping spend on purpose.
- Budget changes made in steps of 15 to 20 percent, with a couple of weeks between them.
- Cost per booked job reviewed monthly, using real bookings from your calendar or CRM.
If you’ve already made the switch and you’d like a second set of eyes on how your budget, tracking and targets are set up, my free account audit covers exactly that. You’ll get a plain-language summary of what’s working, what I’d change, and why.