TLDR;
- When choosing a user acquisition firm in Bath, prioritise proven expertise and relevant case studies over their physical address. The best partner might be remote.
- Ignore agencies that promise guaranteed results. Real paid advertising is about testing and optimisation, not magic wands. Look for transparency and a clear process.
- Before you even speak to an agency, you must understand your own numbers. The most important one is your Customer Lifetime Value (LTV), which dictates how much you can afford to spend to acquire a customer.
- The initial consultation is your chance to vet them. Ask tough questions about their strategy for your specific business. If they give vague answers, walk away.
- This guide includes two interactive calculators: one to figure out your LTV and another to help you budget for ad spend, giving you the numbers you need to have a sensible conversation with any potential agency.
So you're running a business in Bath and you've hit a point where you need to properly scale. You need more customers, more users, more leads. You need a user acquisition (UA) firm. The problem is, how do you find a good one? How do you sort the experts who will actually grow your business from the cowboys who will just burn through your cash?
It’s a big decision, and getting it wrong can be costly. I've seen too many businesses get burned by picking the wrong partner. Tbh, it's not about finding someone with a fancy office near the Royal Crescent; it's about finding a team that has the right expertise for your specific niche and goals. Let's break down how you can actually do that.
Does my agency really need to be in Bath?
This is usually the first question people ask. It feels right to want a local partner, someone you can meet for a coffee with. And while there can be some benefits to a firm understanding the local Bath and Bristol business scene, it's honestly not the most important factor. Not by a long shot.
The number one thing you should be looking for is proven expertise in your industry. Have they successfully scaled a B2B SaaS company before? Do they have case studies showing massive ROAS for an eCommerce brand similar to yours? That's what matters. We work with clients all over the world from our UK base. The principles of good paid advertising—solid strategy, constant testing, brilliant creative, and sharp data analysis—are universal. An expert in London or Manchester who has a track record of success with businesses like yours will be infinitely more valuable than an average agency just down the road on Milsom Street.
The only exception might be if your business is hyper-local, like a restaurant or a local service provider that only serves the BA1/BA2 postcodes. Even then, a skilled remote agency can easily master local targeting. The real question isn't "Are they in Bath?" but "Can they get me the results I need?"
What should I actually be looking for?
Alright, so if location isn't the top priority, what is? When you're vetting potential user acquisition firms, you need to be ruthless. You're not looking for a friend; you're looking for a growth partner. Here’s what you should be digging into.
1. Relevant Case Studies
This is non-negotiable. Don't just accept a glossy PDF with a few logos. Ask to see detailed case studies that walk through the strategy and, crucially, the results. I'm talking about real numbers. We have detailed breakdowns for clients, showing things like reducing a SaaS client's Cost Per Acquisition from £100 down to just £7, or generating £107k in revenue for another client at over 600% ROAS. These are the kinds of specific, verifiable results you want to see.
Pay close attention to whether they have experience in your niche. Running ads for a high-ticket B2B service is a completely different ball game to promoting a £20 eCommerce product. If they don't have experience that's at least adjacent to your industry, it's a major red flag. They'll be learning on your dime.
2. A Clear, Logical Strategy
When you get on that initial consultation call, listen very carefully. Are they asking you smart questions about your business, your customers, and your goals? Or are they just launching into a sales pitch about their "secret formula"?
A good agency will want to understand your business inside and out before they even suggest a strategy. They should be able to talk you through a logical process, something like: "First, we'd audit your existing accounts. Then, based on your ideal customer, we'd test these three audiences on Meta against these two creative angles. We'll measure success by looking at Cost Per Qualified Lead, and we'll optimise from there."
If their plan sounds vague or overly simplistic ("We'll just run some Google Ads and get you leads!"), they don't have a real strategy. For more on this, you might find our guide on how to choose the right UK paid media agency helpful as it goes into more detail on the questions you should be asking.
3. Transparency
You should have full ownership and access to your ad accounts. Always. If an agency wants to run ads through their own accounts, run for the hills. It means if you ever leave, you lose all your data and campaign history. You also need to know exactly how your money is being spent. They should be clear about their management fee versus your actual ad spend. Regular, easy-to-understand reporting is a must. If you don't understand what they are reporting on, ask them to explain it until you do.
How much is this actually going to cost?
This is the million-dollar question, or hopefully, a bit less. The cost is broken down into two parts: the agency's fee and your ad spend (the money that goes directly to Google, Meta, etc.).
Agency fees in the UK can vary wildly. For a proper, expert-led service, you should expect to pay a monthly retainer starting from £1,500 - £2,000 and going up from there depending on the scope of work. Some agencies also charge a percentage of ad spend. Be wary of anyone offering to do it for a few hundred quid a month; you will absolutely get what you pay for. For a deeper dive, our guide on UK Google Ads management pricing breaks down the different models you'll encounter.
The bigger question is your ad spend. How much should you budget? Tbh, the answer depends entirely on your goals and your business economics. This is where most businesses go wrong—they pick a random number out of thin air. You need to work backwards from your goals, and to do that, you first need to understand a critical metric: your Customer Lifetime Value (LTV).
You must know your LTV before you spend a single pound
The real question isn't "How low can my Cost Per Lead go?" but "How high a CPL can I afford to acquire a great customer?" The answer is your LTV. It tells you what a customer is worth to your business over their entire relationship with you. Once you know this, you can make intelligent decisions about your ad budget instead of just guessing.
For example, if a customer is worth £10,000 to you over their lifetime, paying £300 for a qualified lead that has a 1 in 10 chance of closing suddenly looks like a brilliant investment. Without knowing your LTV, that £300 CPL just looks terrifying. Calculating it is the first step to building a profitable, scalable acquisition machine.
Customer Lifetime Value (LTV) Calculator
Use the sliders to input your business metrics. This will calculate the total gross margin you can expect from a typical customer over their lifetime.
So, what ad spend budget do I need?
Once you know your LTV, you can set a target Cost Per Acquisition (CPA). A healthy ratio is typically 3:1 (LTV:CPA), so if your LTV is £10,000, you can afford to spend up to £3,333 to acquire a customer. From there, you can work backwards to figure out your ad spend.
You'll need to estimate your cost per lead (CPL). This varies massively by industry. Based on campaigns we've run, B2B software leads on LinkedIn might be around $22 (£18), while a local cleaning service might get leads for £5. For a new campaign, it's wise to start with a conservative estimate. The calculator below can help you translate your monthly lead goals into a starting ad budget.
Monthly Ad Spend Budget Calculator
Estimate a starting ad spend based on your lead generation goals and your expected Cost Per Lead (CPL). Adjust the sliders to see how the budget changes.
I usually recommend a minimum ad spend of £1,000-£2,000 per month to start with. This gives the ad platforms enough data to learn and optimise effectively. If you want to dive deeper into this, our UK Google Ads budget guide provides a more detailed framework for how to plan your spending.
Typical Cost Per Lead (CPL) Ranges in the UK
Based on our campaign data
Red flags: what to run away from
Finding a great agency is also about knowing what to avoid. There are a few classic red flags that should have you heading for the door immediately.
-> Guarantees of results. This is the biggest one. No one can guarantee results in paid advertising. It's impossible. There are too many variables. Anyone who promises you a specific ROAS or number of leads is either lying or inexperienced. What they should promise is a solid process and a commitment to testing and optimisation to achieve your goals.
-> Lack of transparency. As mentioned before, if they won't give you access to your own ad accounts or are cagey about how your money is being spent, it's a massive problem. You should always know exactly where every penny is going.
-> Long-term lock-in contracts. A good agency will be confident enough in their ability to deliver that they won't need to tie you into a 12-month contract from day one. A 3-month initial commitment is reasonable, as it takes time to get campaigns ramped up, but after that, it should ideally move to a 30-day rolling agreement. That keeps them accountable.
-> Poor communication. Are they slow to respond to emails? Do they cancel meetings? If they're a pain to deal with during the sales process, imagine what it'll be like when they're actually managing your money. Communication is absolutely vital for a good partnership.
The Final Check: Making your decision
Okay, so you've done your research, you've checked their case studies, and you've had a few promising intro calls. You've narrowed it down to a couple of contenders. How do you make the final choice?
At this point, it often comes down to chemistry and trust. Which team do you genuinely believe understands your business the best? Who gave you the most insightful advice on the call? Who seems most invested in your success? These aren't just fluffy feelings; they're indicators of a good working relationship.
Here's a simple diagram outlining a solid vetting process you can follow.
Agency Vetting & Onboarding Process
Choosing a user acquisition firm is a serious investment for any Bath business. But by focusing on genuine expertise over postcodes, demanding to see proof of performance, and understanding your own numbers first, you put yourself in the best possible position to find a partner that will become a true engine for your growth. Don't rush the decision. Do your homework. The right firm is out there, and finding them can completely transform your business.
If you're currently looking for a partner to help scale your user acquisition and want an expert, no-obligation opinion on your current strategy, we offer a free initial consultation. We'll review your accounts and give you some actionable advice you can take away, whether you decide to work with us or not.
Lukas Holschuh
Founder, Growth & Advertising Consultant
Great campaigns fail without expertise. Lukas and his team provide the missing strategy, optimizing your entire advertising funnel—from ad creatives and copy to landing page design.
Backed by a proven track record across SaaS, eLearning, and eCommerce, they don't just run ads; they engineer systems that convert. A data-driven partnership focused on tangible revenue growth.