Three different models can run your HVAC marketing: a full-time marketing hire, a fractional (part-time) marketing manager, or an agency. They aren't interchangeable. An agency does marketing work. A manager owns the outcome and directs whoever does the work. A full-time hire is a manager who works only for you, all week. The right answer depends on how much management work your company really has, not on how big you want to look.
This guide is written by HVAC.Management, a fractional marketing management service. We have an obvious interest in one of these answers, so we've tried to be fair about when each model wins, including when ours doesn't. We are a marketing and consulting service, not an HVAC contractor.
What each model actually gives you
The simplest way to compare them is by who decides, who does and who checks.
| Full-time hire | Fractional manager | Agency | |
|---|---|---|---|
| Decides what marketing does | Yes | Yes, with the owner | Proposes; owner decides |
| Does the hands-on work | Some | Rarely; directs vendors | Yes, within its scope |
| Checks results across vendors | Yes | Yes | Usually its own work only |
| Knows your company deeply | Yes, over time | Fairly well | Varies |
| Has seen many HVAC setups | Depends on the person | Usually | Usually |
| Cost behaves like | Fixed salary | Monthly fee for set scope | Monthly fee plus media |
The key distinction is in the third row. Only a manager, whether full-time or fractional, has the job of checking every vendor on the same measure. An agency can be excellent at its work and still be the wrong party to judge it.
Signs you need a manager, not more marketing
Most owners notice the symptoms before they name the problem. If three or more of these are true, adding another vendor or channel will probably make things worse, not better.
- You approve marketing invoices without being sure what they bought.
- Different vendors give you different lead counts for the same month.
- You don't know who holds owner access to your Google Business Profile or ads account.
- Your marketing calendar is set by whatever each vendor proposes.
- You can't say what a booked replacement job cost you last month.
- Marketing decisions get made in the evening, after the real work is done.
- An office manager has been "doing marketing" on top of a full role.
These are management gaps. More spend poured into an unmanaged setup tends to amplify the gaps.
The real cost of each option: a worksheet
To compare options fairly, count everything each one costs, not just the headline number. Fill in your own figures; the example uses round, illustrative numbers rather than market data.
Full-time hire
- Base salary (from your own job posting research)
- Benefits, payroll taxes and statutory costs (often a meaningful percentage on top)
- Software and tools they'll need
- Training and conferences
- Recruitment time or fees
- Your time managing them, especially in the first six months
- The cost of a bad hire: if it doesn't work, you start again
Fractional manager
- Monthly fee for an agreed scope
- Your time in one monthly review plus occasional questions
- Any delivery work they recommend, through your existing vendors or new ones
Agency only
- Monthly fees and media spend
- Your time briefing and checking them, which is the management work you're still doing yourself
Example
Suppose a hire would cost you a salary of $S plus 20% in benefits and payroll costs, plus $300 a month in tools. Annual cost: 1.2 × S + $3,600, before recruitment and your management time. Compare that with twelve months of a fractional fee. If the fractional option is less than the hire and covers the hours you need, it wins until your management workload grows. If your workload genuinely fills a week, the hire wins, and the fractional manager can help you recruit.
Then add a third line: what the current gap costs. If a stack audit or monthly review shows a channel eating a fifth of your budget for very few booked jobs, that waste belongs in the comparison.
When each model is the right answer
Each option has a stage where it clearly fits.
Agency only
Best when you run one or two channels, you have a single vendor you trust, and the owner has a little time each month to read their summary and ask good questions. Many smaller HVAC companies sit here comfortably for years. Delivery through HVAC.Agency is an example of this model.
Fractional manager
Best when you run several channels or vendors, spend enough that waste hurts, and have nobody whose job is to own the result. It's also the right bridge if you're unsure what a full-time marketer should do; a fractional manager can define the role before you hire it. See our fractional manager service.
Full-time hire
Best when marketing work fills a week: multiple locations or brands, constant content and campaign approvals, a large budget, and in-house production such as video or photography. The hire should come with a clear plan, a scorecard and clean accounts, or they'll spend their first months doing clean-up.
Common mistakes in making this decision
Owners usually get this decision wrong in predictable ways.
- Hiring a junior marketer to fix a senior problem. A coordinator can post on social media, but can't hold an agency to account or rebuild a budget.
- Letting the agency also be the manager. It's convenient, but it means the people doing the work are also grading it. If you do this, insist on raw data access.
- Choosing on fee alone. The cheapest option can be the most expensive if nobody checks whether marketing books jobs.
- Skipping the plan. Whichever option you choose, write a one-page marketing plan first so you can brief them.
- Never revisiting the choice. Re-check every year. A company that was right for an agency at five trucks may need a manager at fifteen.
How a fractional engagement hands off to a full-time hire
Well-run fractional engagements make themselves smaller over time. When your workload justifies a hire, a good fractional manager should help write the job description, take part in interviews, and hand over the plan, the vendor ledger, the account custody sheet and the scorecard history. That handover is worth asking about before you start with anyone.
Next steps
If you've read this and you're still unsure, write down three things: every marketing vendor you pay, your rough monthly spend, and who decides what marketing does next month. Then read our vendor management guide and try the scorecard on last month's numbers. If you want a second opinion, call, text or email.
Frequently asked questions
When should an HVAC company hire a full-time marketing manager?
When there's enough work to fill the week: several channels running at once, multiple locations or brands, regular campaigns and content to approve, and a budget large enough that day-to-day attention pays for itself. Before that point, a full-time hire tends to drift into other office work.
Can my office manager run marketing?
They can run parts of it, like collecting photos, asking for reviews and tagging job sources. Setting strategy, judging vendors and reading the data is a different skill set, and it usually loses out to urgent office work.
Is an agency the same as a marketing manager?
No. An agency delivers work such as ads, SEO or a website. A manager decides what work is needed, briefs whoever delivers it and checks the result. Some agencies offer account managers, but their first loyalty is to their own service.
What does a fractional manager cost compared with a hire?
Use the worksheet in this guide with your own numbers. Count salary, benefits, payroll costs, software, training and the time it takes you to manage the person, then compare it with a fractional fee for the hours you actually need.