Are staffing agencies and recruiters worth it for HVAC and plumbing hiring?
How contingency, retained and temp-to-hire fees work, when an agency is worth it for a small shop, and what to settle in writing before you sign.
Sometimes — an HVAC recruiter or staffing agency earns its fee when an empty truck is costing you work you can't reschedule and your own channels have come up dry, and it's a poor deal when you haven't yet tried the channels that carry no agency fee.
Our research found no verified figure for what agencies charge in this trade, so the decision turns on understanding the three fee models and reading the agreement closely.
How do contingency and retained recruiter fees work?
Start with the data gap, because it shapes everything else: our research found no primary source for cost-per-hire figures in HVAC and plumbing, and no verified figure for what a recruiter or staffing agency charges in this trade — no industry survey we could verify publishes one.
The fee you are quoted comes off the agency's own rate sheet and gets fixed in a contract — we found no verified industry standard to check it against, so the written agreement is the thing you are actually evaluating.
What follows is the plain meaning of each fee model plus our judgment about how each behaves for a contractor, not survey data.
Under a contingency arrangement, the recruiter is paid only if you hire a candidate they presented.
You pay nothing upfront, and nothing stops you running several agencies on the same search in parallel alongside your own posting — unless the agreement you sign says otherwise.
The fee is triggered by the hire itself; whether that means a signed offer or a first day worked is one of the terms you negotiate.
The trade-off is focus: when several agencies and your posting are chasing the same search, each one's incentive is to submit fast, and depth of screening varies shop by shop.
How is the fee sized?
It may be quoted as a flat amount for the search or as a share of the hire's first-year pay, and the contract should say which, what triggers it, and what happens if the new tech quits soon after starting.
Ask what happens if the hire leaves inside a window the contract defines: the answer, when an agency offers a guarantee, is a re-run search, a credit or a refund — and both the window's length and the remedy are negotiated terms, not constants.
Get both in writing.
A retained search inverts the payment.
You engage one recruiter exclusively and pay as the search runs, in stages — before work starts and at agreed milestones — whether or not the search ends in a hire.
In exchange, the search is that recruiter's project: a defined brief, a shortlist built with referencing, one firm accountable for the result.
Consider a retained search for the hard, specific fills — a service manager, a lead tech for a new commercial account — where the right person is rare and a flood of near-miss contingency submissions wastes more time than it saves.
Which model fits depends on how the seat pays you back.
Contingency suits a standard tech vacancy you could also fill yourself — you owe no fee if the agencies come up empty.
Retained suits a search you cannot afford to botch.
We found no verified industry standard for pricing either, so the only number you can rely on is the one the contract puts in front of you.
What do temp-to-hire markups cost?
Temp-to-hire is a different product from a placement search: instead of finding you a permanent employee, a staffing agency sends you a tech who stays on the agency's payroll while working your jobs.
You are billed an hourly rate for their time; at a point the contract defines, you can convert them onto your own payroll — or send them back and take the next one.
The try-before-you-hire part is what you are buying: a working interview stretched across real jobs, covered in depth in our guide to working interviews.
What you pay is the billed rate, not the wage.
The markup — the gap between the two — is where the agency's own costs and its fee sit, and it applies to every hour the tech works your jobs, week after week.
Agencies may itemize that gap differently, so ask for the breakdown on the rate sheet: what goes to the tech's pay, what covers payroll burden, and what is the agency's charge.
If an agency won't itemize it, that tells you something too.
The cost dynamics are simple arithmetic once you have the rate sheet.
Every week before conversion is billed at the marked-up rate, so the longer the temp period runs, the more total spend piles up on top of the eventual hire.
An agreement may also charge a conversion fee if you put the tech on your payroll before the contract's temp period ends — effectively a partial placement fee.
Read when conversion is allowed, what converting costs, and who carries the tech's benefits in the meantime, before you sign.
Is the markup worth it?
Our research found no verified figure for staffing markups in this trade — the same data gap that hides recruiter fees hides these — so the honest comparison is your own arithmetic: the temp route's total billing against the wages you would have paid a direct hire over the same period, plus what a mis-hire costs you in callbacks and a re-run search.
The temp period is buying information: how the tech handles customers, pace and your equipment.
The less you already know about a candidate, the more that information is worth — which is why temp-to-hire fits strangers far better than referrals you have already watched work.
When is an agency worth the fee for a small shop?
This decision exists because the openings keep coming: BLS projects about 40,600 openings a year for HVAC mechanics and installers over 2025–2035, mostly to replace workers who leave or retire, and about 42,000 a year for plumbers, pipefitters and steamfitters.
For a small shop, one empty truck is a big share of capacity — the calls you cannot book are the fee's real benchmark.
An agency earns its fee for a small shop in three situations.
First, the seat is already empty and hurting: you have run referrals, the supply house and a trade-board posting without a hire, and each week of vacancy is dropped maintenance agreements and overtime for whoever is left.
Second, the fill is specific and credentialed — a licensed journeyman, a commercial-experience tech — and you do not have the reach to surface that person yourself.
Third, the work is temporary by nature: a large install contract, a peak season, a builder account — staffing for capacity you should not carry on permanent payroll.
In all three, you are buying speed or certainty you cannot manufacture in-house that week.
The agency fee is hardest to justify while the no-agency channels are still unworked.
Referrals, supply-house counter relationships, trade-school programs and a well-written posting on a niche board charge you no agency fee — their price is your time, your relationships and, if you set one, a referral bonus.
Our guide to where to find HVAC technicians ranks the ten channels that actually produce hires.
Agencies are also, in our judgment, a poor fit for entry-level seats: merit-shop contractors find apprentices through ABC's chapters and PHCC state chapters' registered programs, and you train an apprentice to your standards instead of paying for someone finished.
What an agency does best — a ready-now, credentialed tech — is, once those channels are built, a hire you can source yourself.
Before you sign anything, price the do-it-yourself route honestly: a posting where the trade actually reads, your crew briefed on the referral, a week of phone calls.
That is the alternative an agency has to beat — see what candidates see on the HVAC technician jobs page.
The sourcing half of hiring HVAC and plumbing techs lives in one guide.
If the posting is up, the channels have been worked, and the seat still sits empty a few weeks later — that is the moment an agency conversation makes sense.
This page is employer business information, not legal advice. Staffing and recruiting agreements are contracts — have an attorney review one before you sign, and measure every promise the agency makes against the agreement itself.
Get it in writing before you sign
- The fee schedule: exactly what the fee is, how it is calculated (a flat amount or a share of the hire's first-year pay), and when it becomes payable.
- The trigger: is the fee owed on the signed offer, the first day worked, or something else — and what happens if the start date slips.
- The replacement guarantee: how long it runs, what it covers, and whether the remedy is a re-run search, a credit or a refund.
- Exclusivity: whether you can keep your own posting and other agencies running while one firm holds the search.
- Candidate ownership: how long a presented candidate stays theirs — that clause decides whether a later direct hire triggers the fee.
- Temp rates: the full hourly billing breakdown, what the agency handles while the tech temps, and what stays on your side.
- Conversion: when you can hire the tech outright, what a conversion fee would be, and how the temp period ends.
- Credentials: who verifies the tech's licence and certifications before the first day, and what happens if they arrive without them.
Questions employers ask
How much do HVAC staffing agencies charge?
Our research has no verified answer: no figure for recruiter fees or staffing markups turned up in HVAC and plumbing, and the percentages that circulate online carry no source we could verify.
Fees are set agency by agency and negotiated into a contract — contingency recruiters are paid only on a hire, retained searches are paid as the search runs, and temp agencies bill an hourly rate on top of the tech's pay.
Ask each agency for its rate sheet in writing and compare those, not a national average.
What is the difference between a staffing agency and a recruiter?
The terms overlap in practice, but the core distinction is the product.
A staffing agency employs workers and places them on temporary or temp-to-hire assignments at your shop, billing you by the hour.
A recruiter — contingency or retained — searches for candidates you hire onto your own payroll, for a fee per placement.
A firm may do both, so ask which hat it is wearing on your search before you compare quotes.
Does the technician pay the agency, or do I?
You do — under the three models this page describes, the employer is the agency's customer.
A contingency or retained fee is billed to your company on a placement, and a temp agency bills your account for the hours worked.
A firm that asks a technician for money to find them work is running a different business than the one described in this article.
Is temp-to-hire worth it for a small HVAC shop?
It is when the hiring decision itself is the hard part.
Temp-to-hire lets you watch a tech on real jobs — pace, customers, paperwork — before adding them to your payroll, which is worth the billed markup when you know nothing about the candidate or have been burned by a mis-hire.
If the person comes recommended by someone you trust, the temp period adds cost without adding information; hire direct or negotiate a short, early conversion.
More hiring resources
Skip the agency fee: post where techs already read
Post the opening where HVAC and plumbing techs already read — every listing sits next to the trade's own career guides, and candidates reach you direct.