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Key takeaways
Specialist social media agency vs full-service marketing agency cost depends on scope. A specialist usually charges £950–£2,500 a month for social media alone. A full-service agency covering social, website, search and email costs more in total but can coordinate channels. Pay for breadth only if you will use it.
- Specialist social media agencies charge most UK SMEs £950–£2,500 a month.
- Full-service agencies cost more in total because they cover more channels.
- Specialists usually go deeper on content and community.
- Full-service suits firms that need several channels coordinated.
Want to know which type of agency fits your plans? Message us on WhatsApp.
Chat on WhatsApp →What is the difference?
A specialist social media agency focuses on social channels: strategy, content, community and paid social. A full-service marketing agency covers several disciplines, such as website, search, email, PR and social, under one contract. The social media part of a full-service retainer may be smaller than it looks.
How do the costs compare?
Most UK SMEs pay a social media specialist £950–£2,500 a month. A full-service retainer adds other channels on top, so the total is higher. Ask any full-service agency how many hours a month go on social media specifically, then compare that figure with a specialist's quote. These are indicative figures, not a GBL price list.
- Specialist social: £950–£2,500 a month for most SMEs.
- Full-service: higher total, split across channels.
- Compare hours on social, not headline fees.
- Media budgets: separate in both cases.
Want a like-for-like comparison of two quotes? Send them to us on WhatsApp and we will discuss your requirements.
Chat on WhatsApp →What does a specialist do better?
A specialist usually knows platform changes faster, produces more social content per pound and handles community management better, because it is their whole job. They also tend to have deeper experience of social-first formats such as short video and creator content.
What does full-service do better?
Full-service agencies coordinate messages across website, search, email and social, and give you one point of contact. That matters for launches and campaigns spanning several channels. The risk is that each channel gets a thinner slice of attention.
When should you choose each?
Choose a specialist when social media is your main channel or the one that needs fixing. Choose full-service when several channels need work at once and you lack the time to coordinate suppliers. Many small firms use a specialist plus a separate web partner.
What does this look like in practice?
A pattern we see with UK small businesses on full-service retainers: social media gets a few hours a month and posts are generic. Global Bridge Labs (GBL) runs social media and websites as separate services that work together, so each gets its own scope and hours while messaging stays consistent.
Agency type checklist
Ask every agency these questions.
- How many hours a month go on social media?
- Who does the social work, and what is their experience?
- Which channels are included?
- How are channels coordinated?
- Can you drop one service without ending all of them?
Next step
Tell us which channels need work now. We will tell you whether a specialist or a broader partner makes more sense.
Message us on WhatsApp for a comparison, or book a 30-minute consultation.
Chat on WhatsApp →Sources and further reading
- Employee earnings in the UK (Annual Survey of Hours and Earnings) · Office for National Statistics
- Advertising Association / WARC Expenditure Report · Advertising Association
- The Long and the Short of It: balancing short and long-term marketing strategies · IPA
Frequently asked questions
Is a full-service marketing agency more expensive?
In total, usually yes, because it covers more channels. Per channel it can be similar or lower, but the social media share may be small. Ask how many hours a month go on social specifically and compare that with a specialist's quote.
Should a small business use a specialist social media agency?
If social media is your main marketing channel or the one that most needs fixing, a specialist usually gives more depth for the money. If you need website, search and social improved at once, a broader partner or two coordinated specialists may suit better.
Can I combine a social media agency with other suppliers?
Yes. Many small firms use a social media specialist alongside a web developer or search consultant. Share a simple brief and calendar between them so messages and campaigns line up, and name one person in your business to coordinate.
What questions reveal how much social work a full-service agency does?
Ask how many hours a month are spent on social media, who does the work, how many posts and replies are included, and what reporting you get. Vague answers usually mean social is a small part of the retainer.
Written by

Global Bridge Labs (GBL) is a UK–Sri Lanka partner for social media, websites and BPO. Everything here comes from client delivery, not theory.




