A marketing automation agency sets up the systems that follow up leads, nurture prospects and bring customers back without someone doing it by hand. The good ones save a small business hours a week and recover sales that were slipping away. The bad ones sell a retainer, build a few emails and leave you with software nobody understands. Here's what these agencies do, what they cost in the UK and Australia, and how to choose one, or whether a specialist freelancer is a better fit.
1. What a marketing automation agency does
- Lead follow-up: instant replies to forms, missed calls and ad leads by text and email.
- Nurture sequences for leads who aren't ready yet, over weeks or months.
- Booking and reminders, so prospects book themselves and fewer people no-show.
- CRM setup: pipelines, tags, lead sources and reporting so you can see what's working.
- Reviews and referrals requested automatically after a sale or job.
- Reactivation campaigns that bring past customers back.
- Integrations between your website, ads, CRM, accounting and booking tools.
- AI tools such as chat assistants and AI call answering, set up with sensible limits.
Some agencies also run your ads, write your emails and manage social media. Others only build and maintain the systems. Ask which kind you're talking to before comparing prices.
2. Which platforms they work with
| Platform | Usually suits |
|---|---|
| HubSpot | B2B companies with sales teams and longer sales cycles |
| ActiveCampaign | Email-led businesses, coaches and online sellers |
| Klaviyo | Ecommerce brands, especially on Shopify |
| Mailchimp | Simple newsletters and basic email journeys |
| GoHighLevel | Local and service businesses that need texting, calls, booking, reviews and email in one place |
| Zapier, Make or n8n | Connecting tools that don't talk to each other |
A good agency recommends the platform that fits your business, not the one they get commission on. If you already pay for a tool, ask whether it can do the job before moving. See GoHighLevel vs HubSpot and GoHighLevel alternatives.
3. What it costs
Most agencies charge a setup fee and then a monthly retainer:
- Setup or build: a one-off fee for the CRM, workflows and integrations. In the UK, published agency rates for a basic GoHighLevel setup start around £2,500, and bigger builds cost more.
- Monthly management: UK automation retainers commonly run from about £500 to £2,500 a month. Full-service retainers that include ads and content cost several times that.
- Software: the platform subscription is usually separate and paid by you.
Australian agencies price in a similar way: a build fee plus a monthly retainer. Get at least two quotes for the same written scope. A freelance specialist usually costs much less for the build because there are no account managers or office overheads; my prices are on the pricing page. For a breakdown of rates by region, see how much a GoHighLevel expert costs.
4. Agency or freelancer?
| Agency | Specialist freelancer | |
|---|---|---|
| Best for | Businesses that want ads, content and automation handled together | Businesses that need the systems built and maintained |
| Who does the work | A team, sometimes junior staff or subcontractors | The person you speak to |
| Cost | Higher, often with a minimum term | Lower, often fixed-price or hourly |
| Risk | Less dependent on one person | Ask about cover for holidays and documentation |
I'm a freelancer, so weigh that as you read. If you need someone to run your ads and write your content too, an agency may suit you better. If you need the follow-up, booking and CRM side built properly, a specialist is usually faster and cheaper. More detail in VA vs agency vs freelancer.
5. Questions to ask before you sign
- Can you show me automations you've built, with results, not just logos?
- Who will actually build it, and will I speak to them?
- Who owns the accounts? The CRM, domain, phone numbers and data should be in your name.
- What happens if we stop working together? You should keep everything, with documentation.
- How do you handle consent? They should explain UK GDPR and PECR or the Australian Spam Act without hesitation.
- What's the minimum term and notice period?
- How will we measure success? Look for numbers like reply time, booked calls or recovered revenue.
6. Consent rules in the UK and Australia
Automation sends more messages, so the rules matter more. In the UK, marketing emails and texts generally need consent under PECR, with an easy opt-out, and personal data must be handled under UK GDPR. See GDPR for UK and EU businesses. In Australia, commercial messages need consent, sender identification and a working unsubscribe under the Spam Act 2003. See the Spam Act and SMS in Australia. An agency that brushes this off is a red flag.
7. What to automate first
- Instant reply to every new lead, including missed calls. See missed-call text-back.
- Booking with reminders to cut no-shows.
- Follow-up for quotes or proposals that went quiet.
- Review requests after every sale or job.
- Reactivation of past customers and old leads.
Results from my builds: a law firm got 3.2x more consultations (case study), a dental clinic cut no-shows by 27% (case study), and an Australian building and pest inspection firm removed 8 manual steps from quote to invoice (case study). More figures are in the automation results benchmarks.
In Australia? See the AI automation agency in Australia guide for costs and questions to ask.
In Australia? See marketing automation in Australia for AUD costs and the Spam Act.
Need the automation built, without an agency retainer?
I'm Arslan Mumtaz, a software engineer who builds GoHighLevel and AI automation systems for small businesses in the UK, Australia, Europe and the US. You own every account, and I document what I build. Start with a $97 audit of where leads are slipping, see AI automation services, or check pricing.
Frequently asked questions
How much does a marketing automation agency cost in the UK?
Most charge a one-off setup fee plus a monthly retainer. Published UK rates for a basic GoHighLevel setup start around 2,500 GBP, and automation management retainers commonly run from about 500 to 2,500 GBP a month. Software subscriptions are usually extra.
Should I hire a marketing automation agency or a freelancer?
Choose an agency if you want ads, content and automation handled together by a team. Choose a specialist freelancer if you mainly need follow-up, booking and CRM systems built and maintained, which is usually faster and cheaper.
What should I ask a marketing automation agency before signing?
Ask to see automations they've built with results, who will do the work, whether you own the CRM, domain, numbers and data, what happens if you leave, how they handle consent rules, and the minimum term.