Reddit is the world's most efficient destroyer of middleman business ideas, and it is usually right. The proposals that get torn apart share one feature: the poster wants to be paid for an introduction. The middlemen who survive - and every main contractor, distributor and agency is one - get paid for a function. I run a middleman business by any honest definition, with 1,400+ subcontractors delivering work I win and manage, so this post takes Reddit's demolitions seriously and shows exactly where the model stops being fragile.
The demolition threads, in their own words
Start with the thread that should be mandatory reading: r/sweatystartup's "why don't more people start a middleman commercial cleaning agency?" - 101 comments answering a proposal to land cleaning clients, pass the work to a cleaning company and keep about 25% forever. The answers, paraphrased: at a 25% cut there is no profit left for the operator, so they will go around you; a detailing-business owner says middlemen offering those deals get told to pound sand; a 15-year commercial cleaning veteran pays an in-house salesperson 8-15% of contract revenue, which is the actual market price of the function the poster wanted 25% for; and middlemen fold first in downturns while inheriting every quality complaint.
Then "how do I make sure my buyer doesn't cut me out and go straight to my supplier?" in r/smallbusiness. The top comment, at 30 points, is a single question: do you provide anything of value beyond linking the two businesses? One commenter describes cutting out a middleman as a customer and saving 15% with faster delivery. Nobody in the thread found a contract clause that protects a valueless position, because none exists.
And r/sweatystartup's "lead gen and subbing home services is not sweaty" - a manifesto against what its author calls e-middleman schemers, with a moderator confirming they mass-delete just-sub-it-out posts. Read it to the buried concession: the model fails on thin-margin small services and works on big contract work with fat margins. Hold that thought.
The value test that separates survivors
Line the threads up and Reddit's objection is one sentence: an introduction is worth a finder's fee once, not a margin forever. The middlemen that keep their margin do at least three of these, permanently:
| Function | What it means in practice | Who pays for it |
|---|---|---|
| Aggregation | One contract instead of ten trades to manage | The client |
| Quality control | Vetting, standards, evidence, redo-it-if-wrong | The client |
| Guarantee and liability | Your insurance, your warranty, your name on the contract | The client |
| Demand generation | A pipeline the supplier could never build | The supplier |
| Fast, reliable payment | Paid in days, not chased for months | The supplier |
The 8-15% sales-only number from the cleaning thread is the honest floor: that is what a pure introduction function is worth. Everything above it has to be earned by the other rows.
Where the maths actually holds
The cleaning thread's economics fail because a £300-a-month office clean cannot feed two businesses. Now change the sector. UK property maintenance: the client is a letting agent or housing provider with statutory duties, dozens of properties and no interest in managing fifteen trades. The work is compliance-loaded - the client is legally exposed if it goes wrong - and it arrives in volume, year round. This is construction arbitrage: win the maintenance work as the main contractor, subcontract delivery, carry the contract, the vetting, the evidence trail and the warranty, and keep a margin that Reddit's own GC threads price at 20-40% markup as the residential standard.
Notice the model passes every test the demolition threads apply. Disintermediation? The client does not want to run trades - accountability is the product. Margin exceeding value? The markup evidence file shows the market already pays it to every main contractor. Downturn fragility? Maintenance is non-discretionary; boilers do not wait for interest rates. Quality complaints? They are the job - the middleman who owns them is the one who cannot be cut out.
The ideas Reddit is right to kill
For balance, the middleman shapes I would not touch, for the threads' exact reasons: lead-gen-and-sub for small-ticket home services (margins cannot feed two mouths), dropservicing digital gigs where the client can find the freelancer in one search, and anything where your plan is a contract clause instead of a function. If your idea's answer to "why can't they go direct?" is "they won't think of it", they will.
The full method for the sector where it works - finding the work, pricing the spread, managing subs you never stand next to - starts at the pillar, and the wider Reddit picture is in the construction arbitrage Reddit roundup.
This page summarises public Reddit discussions and our own operating experience. We are not affiliated with Reddit.
Frequently asked questions
Do middleman businesses actually work?+
Only the ones that add real value between the two sides: aggregation, quality control, a guarantee, accountability. Reddit tears apart the pure connector who just links buyer and supplier - correctly, because that person gets cut out. Every large main contractor, agency and distributor is a middleman that survived the value test.
What is Reddit's main objection to middleman ideas?+
Disintermediation: the buyer and supplier meet once, then deal direct. In the r/smallbusiness thread on exactly this fear, the top answer asks whether the middleman provides anything of value beyond the introduction. If the answer is no, being cut out is deserved.
What margin can a middleman take?+
What the function is worth. The threads give the market rates: a pure sales function is worth 8-15% of contract revenue; a proposal to skim 25% off commercial cleaning got destroyed because the number exceeded the value. Construction main contracting sustains 20-40% markups because the middleman carries the contract, liability and management.
Which middleman ideas does Reddit say fail?+
Thin-margin small services: lead-gen-and-sub for cleaning, lawn care and small home services. r/sweatystartup's anti-middleman threads make the point that the margins cannot feed two businesses. The same threads concede the model works on bigger contract work with real margins.
Why does construction middleman work when cleaning middleman fails?+
Three reasons: the margins are big enough to share, the client is buying accountability and compliance (not just labour), and the coordination is genuinely hard - multiple trades, evidence, sign-off, warranty. The harder the middle is to do, the safer the middleman. That model is construction arbitrage.
Mohamed El HadriCo-Founder
I'm a co-founder of several construction companies. I built a construction business from a 30-van operation into a lean model with 1,400+ subcontractors in the database - winning the work as the main contractor, subbing it out, and running it as a system from a laptop across multiple countries. I write this site from what actually works.
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