Guide
Freelancer vs Agency
The Breakdown
Choosing
Who Runs Your Email
Short answer
This guide is written by Swayleo, a Klaviyo agency. We’ve tried to give each option a fair hearing, including when an agency is the wrong call.
Hire a Klaviyo freelancer when you have one clear gap (design, copy or a technical fix) and someone in-house who plans and checks the work. Hire an agency when you need strategy, design, build, testing and reporting to run without you managing each piece. Hire in-house when email and SMS are big enough to justify a full-time owner, often alongside an agency rather than instead of one.
What does each option actually give you?
Every email that goes out on time needs five jobs done: deciding what to send and to whom, writing it, designing it, building it in Klaviyo with the right audience and settings, and checking it before it goes. The real question is who does each of those jobs.
Here’s who usually covers each job under each option:
Strategy and calendar: with a freelancer, usually you; with an agency, the agency, with your approval; with an in-house hire, your hire.
Copy: a freelancer only if they’re a copywriter; an agency copywriter; an in-house hire, who is often stretched.
Design: a freelancer only if they’re a designer; an agency designer; in-house, often a shared brand designer.
Klaviyo build and audiences: a freelancer only if they’re a Klaviyo specialist; the agency; your hire.
QA and reporting: with a freelancer, usually you; at an agency, a second person; in-house, your hire.
Few freelancers are strong at all five. That’s not a criticism; specialists are specialists. It just means the jobs they don’t do come back to you.
When is a Klaviyo freelancer the right choice?
A freelancer is usually right when most of these are true:
You have one clear gap. Your emails read well but look dated, or the design is strong and the copy is flat, or a flow is broken.
The job has an end. A template refresh, a migration clean-up or building a single flow.
Someone in-house owns the plan. They decide what goes out and review it before it does.
You can live with a single point of failure. Freelancers get sick, get busy at peak season and move on. Keep a backup.
When hiring one, ask whether they build and test in Klaviyo or only hand over design files, and ask to see live emails for real brands.
When is an agency the better choice?
An agency is usually right when:
Nobody in-house can plan and check the work. You need emails to arrive finished.
Consistency is the problem. Campaigns slip or get skipped when the team is busy.
You need cover in peak weeks. A team absorbs a sick day; one person can’t. See our Black Friday email & SMS playbook for why that matters.
You want one party accountable for results, not five freelancers you stitch together.
Retention is becoming a real revenue line and you want people who see patterns across many brands.
The risk with agencies is the opposite of freelancers: activity that looks busy without moving the numbers, and senior people who sell the work and juniors who do it. Ask who actually does your work. Our guide to choosing from the best Klaviyo agencies lists the questions.
When should you hire in-house?
In-house makes sense when email and SMS are a large enough part of revenue that a full-time owner pays for themselves, and when you can support that person with design and data help. The benefits are focus and deep brand knowledge. The risks are cost once you add salary, benefits and tools, and the fact that one person rarely covers strategy, copy, design, build and analysis equally well. If they leave, the knowledge often leaves with them.
Many 7-figure brands end up with a hybrid: an in-house owner who sets direction and an agency or specialists who produce and test the work.
How do you decide? A simple test
Answer these honestly:
Do we know what to send, to whom and when? If no, you need strategy, which usually means an agency or a senior hire.
Do we have someone who reviews every send? If no, a freelancer will leave gaps.
Is the gap one skill or several? One skill points to a freelancer; several point to an agency.
Are we measuring retention, not just email revenue? If nobody can tell you your repeat purchase rate or time to second order, start there. Our guide on getting a second purchase explains what to track.
What happens in our busiest month if this person disappears?
Don’t compare sticker prices. Compare each option against the revenue from returning customers it should produce, at your current stage.
What should you ask before hiring anyone?
The right questions depend on which option you’re weighing, because each one fails in a different way.
For a freelancer: What’s your backup if you’re sick or booked solid in November? Do you build and test in Klaviyo, or hand over design files for someone else to build?
For an agency: Who on the team will touch our account each week, and how many other brands does that person handle? What did you stop doing for a client because it wasn’t working?
For an in-house hire: Which of the five jobs above are you strongest and weakest at, and who would cover the weak ones? What have you shipped in Klaviyo that you’d show a stranger?
For all three: Will everything live in our own Klaviyo account? How will you measure success beyond open rates?
How Swayleo approaches this
We’re an agency, so we’re biased, and we’ll say plainly when we’re not the right fit. If you have a strong in-house marketer and just need on-brand design, we take design-only work as well as full service. Where we fit best is 7-figure brands that want the founders, Arsia and Carter, owning strategy and design together, with your customer data deciding who hears what and our playbook improving with each test. We work alongside in-house teams too. See how we work.
Talk to Swayleo
Want the founders to look at this for your brand? If you’re a 7-figure Shopify or DTC brand, book a strategy call.
Shopify & DTC brands
Quick Answers
Frequently
Asked Questions
Is it better to hire a Klaviyo freelancer or an agency?
A freelancer is better for one clear gap when someone in-house owns the plan. An agency is better when you need strategy, design, build, testing and reporting handled together without managing each piece yourself.
Where do brands find Klaviyo freelancers?
Common places include Upwork, Fiverr, LinkedIn and referrals from other founders. Klaviyo’s own partner directory mainly lists agencies. Always ask for live emails built for real brands.
When should a DTC brand hire an in-house email marketer?
When email and SMS revenue is large enough to justify a full-time owner and you can support that person with design and data help. Many brands pair an in-house owner with an agency.
Can an agency work with my in-house team?
Yes. A common setup is an in-house owner who sets direction while the agency produces, builds and tests the emails.
What is the biggest risk with each option?
With a freelancer, a single point of failure. With an agency, busy activity that doesn’t move results. With an in-house hire, cost and knowledge that leaves when they do.
Shopify & DTC brands