How much should a Grantham business spend on Google Ads?
Nobody likes the honest answer to this one, so let’s give it up front. “How much should I spend on Google Ads?” is the wrong first question. The right one is: “How much is a new customer worth to me, and how many do I want next month?” Answer that, and the budget starts to answer itself.
This guide is written for small and medium businesses in Grantham and the wider Lincolnshire market: trades, professional services, clinics, e-commerce sellers. It covers what clicks actually cost round here, what a sensible starter budget looks like by industry, what you need in place before you spend a penny, and when it’s worth turning the tap on further. We run Google Ads accounts every day at Codesky, and this is how we think about it in practice.
Why “how much should I spend” is the wrong first question
Google Ads is a mechanism, not a marketing plan. You feed it money. It buys clicks. Some of those clicks become enquiries, and some of those enquiries become paying customers. The maths only works if you know two numbers before you start:
- The average value of a customer to your business (first job, or lifetime, depending on what you sell).
- What percentage of enquiries actually become customers.
If a new roof job is worth an average of £6,000 to you and you close roughly one in three enquiries, then an enquiry is worth about £2,000 on average. That figure decides everything. It tells you what you can afford to pay for a click, what your cost per enquiry can be before you’re losing money, and how much monthly budget makes sense.
Compare that to a business selling £30 phone cases online. Now an enquiry (or in that case, a sale) is worth pennies on the pound. The same click price would sink you.
This is why the answer isn’t a number. It’s a ratio. Set the budget after you’ve done the sums, not before.
What clicks actually cost in Lincolnshire
There’s a myth that being in Grantham automatically makes your Google Ads cheaper than being in London or Nottingham. Only partially true. Yes, competition is thinner in a smaller catchment, and yes, you’ll often pay less per click than a business in a big city fighting the same keyword. But the cost of a click is set by who else is bidding on it, not by the town on your address.
A few patterns we see in Lincolnshire markets:
- Local trades (electricians, plumbers, roofers, damp specialists) can often see clicks in the low pounds range, but the exact figure jumps around depending on time of year and how many competitors are actively running ads that month.
- Legal and financial services (solicitors, accountants, financial advisers) sit noticeably higher per click, because a single client is worth a lot and everyone knows it.
- Cosmetic and clinical services (dental, aesthetics, private healthcare) tend to be more expensive again, especially for treatments with high customer lifetime value.
- E-commerce, done through Shopping ads, works differently. You’re paying for product clicks against margins, not enquiries, and the maths gets tight fast on low-ticket items.
None of these are quotes. Costs shift week to week and are shaped by your Quality Score, your ad copy, your landing page, and what your competitors are up to. But the shape of it is real: your industry sets the price of a click far more than your postcode does.
What you need in place before spending a penny
If you skip this section, please close the tab. Running Google Ads without conversion tracking is setting money on fire in a dark room. You won’t even know how bright the fire got.
The absolute minimum before you launch:
- Conversion tracking on every meaningful action. Contact form submissions, phone calls from the website, WhatsApp clicks, quote requests, bookings. Tag them individually in Google Ads. Not “all conversions in one bucket” tracking. Separate them so you can see which campaign is bringing in real enquiries and which is bringing in tyre-kickers.
- Call tracking on any phone number that appears on the site, if phone leads matter to you. Otherwise you’ll never know which half of your ad spend is bringing the phone to life.
- A landing page built for the ad, not your homepage. Homepages try to serve everyone. Ad landing pages should answer one question for one type of visitor, then make it obvious what to do next.
- A working Google Business Profile with recent reviews, accurate hours and real photos. Ads and organic search reinforce each other. People search you after they click your ad. They also read your reviews before they call.
- A sensible geographic radius. Don’t advertise to Peterborough if you don’t want jobs in Peterborough. It sounds obvious. You’d be surprised.
Get these in place first. Everything downstream depends on them.
Sensible starter budgets by industry
Right, actual numbers. These are starter ranges we’d typically use to test a campaign in Grantham and the surrounding area. They aren’t ceilings and they aren’t recommendations for every business. They’re realistic starting points for testing whether the channel works for you at all.
Local trades and home services
For a Grantham electrician, plumber, roofer, gas engineer or similar, a test budget of roughly £500 to £900 a month is usually enough to gather meaningful data on a tight geographic radius and two or three main services. Below that, you often can’t collect enough clicks to know if a campaign is broken or just unlucky. Above it, you’re better off waiting until the campaign proves itself before you scale.
Focus the budget hard. Two services, one town, a ten-mile radius. That’s your test. Not seventeen services across Lincolnshire.
Professional services (accountants, solicitors, financial advisers)
Click costs are higher here, so the budget needs to match. A meaningful test tends to sit in the £800 to £1,500 range monthly. That’s not because these campaigns need more clicks, it’s because each click costs more. You can spend £600 in this market and end up with fifteen clicks total for the month, which tells you nothing.
Split your budget by service line if you can. Tax returns and probate are different customers with different intent. Same firm, different campaigns.
E-commerce
Different beast. Google Shopping is doing most of the work, and the budget question becomes: what’s the daily spend at which Shopping consistently returns a profitable ROAS on your bestsellers? For most small independent retailers, a fair test is £600 to £1,200 a month, provided your product feed is clean and your margins can carry it. If your margins are thin, Google Ads may not be your best channel. It’s fine to admit that.
High-value niche services (private healthcare, cosmetic, specialist consultants)
These often justify the biggest budgets and the highest click costs, because a single client can be worth several thousand pounds. But you need the process on the other end to convert them. There’s no point paying £15 per click if enquiries sit in someone’s inbox for a week before anyone replies.
Judge the campaign on cost per enquiry, not cost per click
This is the single most important shift in how to think about Google Ads. Beginners obsess over CPC (cost per click). Experienced advertisers care about CPA (cost per acquisition, or cost per enquiry). They are not the same thing.
Here’s why it matters. A campaign with a £1.20 click cost sounds better than one with £4.50 clicks. But if the cheap clicks bring in one enquiry per hundred, and the expensive ones bring in one enquiry per ten, your cheap campaign is delivering enquiries at £120 each and your “expensive” one is delivering them at £45.
Cheap clicks that don’t convert are the most expensive traffic you can buy.
When we look at a campaign at Codesky, we ignore the CPC in isolation. We look at:
- Cost per enquiry, by campaign and by keyword.
- Quality of enquiry (not every form fill is a real lead).
- Conversion rate from enquiry to customer.
- The actual pound value of jobs won versus the ad spend that generated them.
If that ratio works, we scale. If it doesn’t, we fix the landing page, tighten the keywords, or admit the channel isn’t right for that business.
How we actually run Google Ads at Codesky
Since the whole point of writing this is honesty, here’s the pattern we run.
Start sensibly. We rarely recommend spending big on day one. We’d rather set a smaller test budget, put good tracking in place, and let it run for four to six weeks with real oversight. That’s usually enough to see which keywords, ads and landing pages are pulling their weight.
Measure everything against enquiries. Not clicks, not impressions, not “engagement”. Enquiries. And where possible, we tie those enquiries back to closed jobs so you know your real return.
Cut the losers early. Most campaigns have a handful of keywords that do 80% of the work. The rest is usually noise. After a few weeks, we shift budget away from the underperformers and pour it into the winners.
Scale what works. Once we’ve got a campaign delivering enquiries at a cost that leaves margin, we push more budget through it. Scale slowly. Google Ads doesn’t reward sudden budget jumps, and it’s easy to break a working campaign by feeding it money it can’t spend well.
Report honestly. No dashboard theatre. You get told what the cost per enquiry is, what’s working, what isn’t, and what we’re changing next month. If a campaign isn’t earning its keep, we say so.
That’s it. There’s no magic. Google Ads that work are the result of a fair budget, a good landing page, careful tracking, and someone actively managing the account week to week.
When to scale (and when to stop)
You’ve been running for a couple of months and the numbers are in. Now what?
Scale up if: your cost per enquiry is comfortably below the value of a customer to you, your close rate on those enquiries is holding steady, and there’s more search demand out there you haven’t captured yet. Push more budget through, watch the numbers, adjust.
Stay where you are if: you’re at capacity. If you can’t handle more work, more leads just means more people you can’t help. That’s bad for reputation and bad for reviews. Sometimes the right answer is to run a tight, small campaign that keeps your pipeline full without overwhelming you.
Stop or rethink if: after two or three months of proper management, you’re still spending more per enquiry than an enquiry is worth to you. That’s a signal something’s wrong, either with the offer, the market, the landing page, or the fit between your service and paid search as a channel. Throwing more money at it won’t fix it.
Google Ads isn’t the right channel for every business. It’s brilliant for some. For others, SEO, referrals, or a well-run Google Business Profile does more per pound. Part of running ads well is knowing when to stop.
The short version
If you want to summarise the whole guide in a paragraph: work out what a customer is worth to you, put proper conversion tracking in before spending anything, plan a starter budget of roughly £500 to £1,500 a month depending on your industry, judge the campaign on cost per enquiry not cost per click, and scale what works while cutting what doesn’t. That’s Google Ads for a Grantham small business, minus the jargon.
If you want a hand setting it up properly, or you’ve been running ads that don’t feel like they’re delivering, we do this daily. Have a look at our PPC service or drop us a line on 0800 699 0037.
FAQs
Is £500 a month enough for Google Ads? For some businesses, yes. Local trades on a tight radius with two or three services can gather meaningful data at that level. For competitive markets like law or private healthcare, £500 usually buys too few clicks to draw conclusions from, and you’d be better off starting at £800 to £1,000 or waiting until you can commit to a proper test.
How long before Google Ads starts working? Realistically, four to six weeks of active management before you’ll have enough data to trust. The first couple of weeks are usually spent tightening keywords, cutting waste, and improving the landing page. Anyone promising results in a week is either lucky, misleading you, or running an old campaign they’ve reheated.
Should I spend on Google Ads or SEO? Different jobs. Google Ads gets you traffic tomorrow at a cost per click. SEO builds traffic over months at no cost per click, but takes longer and needs investment upfront. Most Grantham businesses we work with benefit from both: ads for immediate leads while SEO builds, then a gradual shift as organic starts pulling its weight.
What’s a good cost per enquiry for a local Grantham business? Depends entirely on the value of a customer. If a customer is worth £2,000 and you close one in three enquiries, £150 per enquiry is comfortable. If a customer is worth £300 and you close one in five, £150 per enquiry is a disaster. There’s no universal number. Work out your own.
Can I run Google Ads myself without an agency? Yes, and plenty of businesses do. Google’s interface has become easier to use. The catch is that “running ads” and “running ads profitably” are different skills. If you’re spending under £500 a month, DIY often makes sense because agency management fees eat the budget. Above that, someone who does it every day will usually find enough waste to more than cover their fee.
What does Codesky charge to manage Google Ads? Depends on the size of the account and how much active management it needs. We’re not the cheapest and we’re not the most expensive. Get in touch and we’ll be straight with you about whether we’re the right fit for your budget.
Want us to run it? We manage Google Ads for businesses across the area. See our Google Ads in Grantham page, or the digital marketing in Grantham overview.
