Janitorial subcontracting: how it works and how to get subcontracts

Janitorial subcontracting is the quiet back door into commercial cleaning. A bank branch, a grocery store or a federal office may never put your name on a contract, yet your crew can be the one mopping its floors every night. The building signs with a big company. The big company signs with you.

That arrangement suits some cleaning companies and slowly bleeds others. This guide covers who hands out subcontract cleaning jobs, how to get on their lists, how to price the work and which clauses deserve a second read. For direct accounts, subcontracts and franchises side by side, see the three ways to get janitorial contracts.

What is janitorial subcontracting?

Janitorial subcontracting is an arrangement where a prime contractor holds the cleaning contract with the building owner or tenant and pays your company to do some or all of the work. You answer to the prime, the prime answers to the client, and the prime sets your rate, your scope and your payment schedule.

Whoever the prime is, three facts follow:

• You did not sell the account, so you did not pay to win it.
• You do not own the relationship, so you can lose the work without the client ever deciding against you.
• Your money passes through someone else's hands first, so their payment habits become your cash flow.

Every pro, con and red flag below comes back to those three. The glossary has a one-line definition to share with a partner or bookkeeper.

Who hires commercial cleaning subcontractors?

Commercial cleaning subcontractors are hired by three kinds of prime: national vendor networks run by facility management firms, local and regional cleaning companies, and businesses holding federal contracts. Each works differently.

How do national facility management companies use local subcontractors?

National facility management companies sign multi-site contracts with retailers, banks and office portfolios, then fill each location with a local provider. Most publish a way for vendors to raise their hand. Here is what each firm's own page said when we checked in October 2026:

• CBRE runs a general supplier page where you can "Register your interest as a potential supplier" through an online form, plus a separate CBRE Provider Network for service providers in the US and Canada. The trades listed on the Provider Network page were repair and exterior services such as HVAC, plumbing, landscaping and snow removal. Janitorial was not named there, so the general supplier form is the likelier route for a cleaning company.
• JLL moved supplier onboarding to one system it calls the JLL Global Supplier Platform, built on Aravo. New suppliers complete a health, safety, security and environment questionnaire, and JLL says onboarding typically takes two to three business days depending on how complete the submission is.
• Cushman & Wakefield has a Prospective Supplier Registration Portal that is free to join and lets you describe your business for future work.
• ABM manages its supplier network through Supplier.io, with registration on a platform called SupplierOne. Its supplier inclusion page says registration is free and puts your business in front of its procurement teams, and that registering does not guarantee a partnership.
• Lessen, a property services company, has a "Join the Lessen Network" page that lists janitorial among its recurring services. It asks vendors to be licensed, insured and bonded where required, to submit photos, completion confirmations and invoices, and it states payment comes about 30 days after a batch invoice, with an early pay option.
• ServiceChannel is a work order platform that facility teams use to manage contractors. Its marketplace page says providers cannot pay for placement and are discovered only by doing work for clients already on the platform, and that ServiceChannel earns a sourcing fee from providers when it connects them to new clients. In practice you usually arrive on ServiceChannel because a client or prime puts you there.
• KBS (Kellermeyer Bergensons Services) has a vendor login for existing vendors and a "Partner with KBS" contact form on its home page. We could not find a public self-serve subcontractor application, so the contact form is the way to start that conversation.

These pages change often, so check them before planning around any one firm. If you also offer repairs or day porter work, the same portals apply, and our page on facility maintenance leads covers selling those services directly.

How do local prime contractors use subcontractors?

Local primes use subcontractors when they win more work than they can staff, land a building outside their usual drive time, or need a skill they lack, such as stripping and refinishing. These deals start with a conversation between owners, not a portal, and the person who pays you is the person you talked to.

How does federal subcontracting work for cleaning companies?

Federal subcontracting works through large companies that must share part of their government work with small businesses. The SBA explains that federal contracts awarded to large businesses over a set dollar threshold must contain a small business subcontracting plan with goals for using small firms. For most service contracts, FAR 19.702 sets that threshold at contracts expected to exceed $900,000.

The SBA points small businesses to several places to find those primes:

1. SUBNet, the SBA's subcontracting database, where large primes post opportunities. When we checked in October 2026, the SUBNet listing could be filtered by state and keyword, and it held no janitorial postings. It is worth a monthly look rather than a daily one.
2. The SBA Directory of Prime Contractors with Subcontracting Plans, which tells you which large firms have goals to meet.
3. Small Business Search, the profile primes use to find small firms. The SBA advises making sure your profile there is complete.
4. APEX Accelerators (formerly PTACs), which give free help finding subcontracting work.

Two federal rules follow you into a subcontract. The Service Contract Act requires contractors and subcontractors on prime contracts over $2,500 to pay prevailing wages and fringe benefits, so your labor cost is set by a wage determination, not by you. And under FAR 52.232-40, when a prime receives accelerated payments from the government, it must pass accelerated payments to its small business subcontractors within 15 days, to the extent practicable. For the registration side (SAM, NAICS codes, set-asides), see our guide to government cleaning contracts.

Is subcontracting worth it for a cleaning company?

Subcontracting is worth it when you have crew hours to fill and no sales engine yet, and it stops being worth it when it crowds out work you could own. Here is the honest trade.

What you gain

• Volume without selling. The prime found the client. You skip the prospecting, the walk-through rounds and the proposal chase.
• Steady nights. Recurring subcontract sites can keep a crew on payroll through a slow quarter.
• A track record. Cleaning to a national brand's checklist, with photo proof and inspections, teaches standards that direct clients will later pay for.

What you give up

• Margin. The prime adds its own overhead and profit on top of your rate. You see a slice of the contract value, not the whole thing.
• Payment speed. Your invoice waits on the prime's process, and sometimes on the prime's client. A short cash cushion feels it fast.
• The relationship. The client may not know your company name. When the prime loses the contract, you lose the building, however good your work was.
• Say over scope. If the prime promises extra tasks to keep its client happy, the extra work often lands on you without a matching rate change.

Treat subcontracts as one tool among several, sized so that losing any single prime would not sink you.

How do you get onto vendor networks?

You get onto vendor networks by registering on each firm's portal, uploading a complete compliance packet, stating your rates and coverage area clearly, and then performing well on the first small jobs they send. Registration is the easy part. Getting dispatched is earned.

What should go in your vendor profile?

Your vendor profile should make it easy for a coordinator to say yes: clear coverage, a quick start date and current documents.

Vendor profile checklist

• Legal business name, EIN and a W-9 ready to upload
• Certificate of insurance showing general liability, workers' compensation and auto if you drive to sites
• Ability to add the prime and its client as additional insured on short notice
• Bond information, if your state or the prime asks for it
• Services offered, listed in plain terms (nightly janitorial, day porter, floor care, carpet, windows)
• Coverage area by ZIP code or county, not just "the metro"
• Days, hours and how fast you can start a new site
• Background check and drug screening policy for your staff
• A named contact who answers the phone and email the same day

What compliance documents do primes ask for?

Primes most often ask for a certificate of insurance naming them as additional insured, proof of workers' compensation, a W-9, a signed vendor agreement and a safety or code of conduct acknowledgment. Insurance minimums vary by prime and client, so get the exact limits before you call your agent, and track renewal dates. An expired certificate gets you pulled from dispatch fast.

Should your cleaners be employees or 1099 contractors?

Your cleaners should almost always be employees, and primes increasingly check. Under the Department of Labor's economic reality test, a worker who is economically dependent on you, works schedules you set and does work integral to your business looks like an employee, and the DOL says signing an independent contractor agreement does not by itself make someone a contractor. As of October 2026, the DOL's fact sheet notes a 2024 rule still in effect for private litigation, a 2025 enforcement bulletin and a February 2026 proposed rule, so the details are in motion. The direction is not. A prime that asks for proof of workers' compensation is protecting itself from your classification risk, and a misclassification claim against you can end the relationship.

How do you price a janitorial subcontract?

You price a janitorial subcontract from your own costs upward, then compare the result to what the prime is offering, never the other way around. Primes often arrive with a number already in mind. Your job is to know your floor before you hear it.

1. Time the work. Use the scope sheet to estimate production minutes per visit, the same way you would for a direct bid. Our guide on how to price commercial cleaning walks through production rates and labor math.
2. Load the labor. Add payroll taxes, workers' compensation and any required benefits. On federal work, start from the Service Contract Act wage determination.
3. Add drive time and travel. Remote single sites are where subcontract margins vanish. Count the minutes on the road.
4. Add the hidden admin. Portal check-ins, photo uploads, work order notes and invoice formatting take real office hours.
5. Add supplies, unless the prime supplies them. Get this in writing.
6. Add overhead and the margin you need. Then compare.

If the offered rate sits below your number, negotiate the scope down, ask for more with your math attached, or decline. A job taken below cost to "get in the door" usually keeps you at that rate.

What are the red flags in a subcontract agreement?

The biggest red flags in a subcontract agreement are payment clauses that shift the client's risk onto you, non-solicitation terms that outlast the work, and chargeback rights the prime can use on its own judgment. Read every subcontract with these in mind, and have a lawyer review any agreement covering serious money.

Pay-if-paid deserves special care. The wording decides whether it only delays your money or lets the prime keep it if its client never pays, and state courts treat these clauses differently. The subcontract checklist in our contracts guide covers the basics; this table covers the clauses worth fighting over.

How can subcontracts help you build direct accounts?

Subcontracts help you build direct accounts by paying for the crew, the equipment and the experience you need while you sell your own clients on the side. The trick is to plan the exit from the start.

• Cap the share. Decide how much of your revenue any one prime can be. When a single prime grows past that line, put sales effort into direct work rather than accepting more of their sites.
• Use the hours you have. Subcontract sites often run on fixed nights, which leaves gaps elsewhere in your crew's week. Our guide to filling empty hours in a cleaning crew's schedule shows how to map those gaps and sell into them.
• Collect proof and respect the non-solicit. Keep inspection scores and photo logs for your proposals, and pitch buildings that are not your prime's clients.
• Sell direct where it is cheapest to win. Small offices and medical suites near your existing routes are a good start. Our guide to landing your first commercial cleaning client covers where those first direct accounts usually come from.

Once direct accounts carry your payroll, keep the subcontracts that pay well and let the rest lapse. A direct client is worth more over time because nobody takes a cut of each invoice; see the lifetime value of a janitorial client.

Where does LeadWharf fit?

If subcontracts keep your crew busy and you are ready to own accounts, the slow part is finding decision-makers who want a new cleaner. LeadWharf janitorial leads are exclusive, pay-per-lead contacts in the area you choose, each a named decision-maker who has said they want regular cleaning. You book the walk-through and write the quote, so the account and the margin are yours. To talk it through, book a call.