Selling more to the customers they already had

When Dan Spracklin bought Gray Brothers from his father-in-law in 2013, the septic company had 22,000 customers and did about $1 million a year. One of the first things he did was give those customers more to buy: inspections, construction work and emergency municipal jobs, sold to households and towns already in the file. Two years later the company did roughly $3 million. Several other owners in this database grew the same way, and their entries are specific about which add-ons earned their keep.

Start with the file you already have

Spracklin's entry is careful about credit. The new services arrived alongside GPS routing on the trucks and price increases on rates that had not moved in years, so nobody can say how much of the jump from $1 million to $3 million each change produced. Margins went from the industry's usual 10 to 15 percent to more than 30 percent over the same two years. What the entry does say plainly is where the value sat: a customer file of 22,000 households on a three-to-five-year pumping clock, which takes decades to assemble. That is also why he recommends buying a septic company over starting one, the argument our buy or build piece works through.

Same customer, harder deadline

For Cristobal and Sandra Mondragon, standard house cleaning is the volume base. Airbnb turnovers and move-out cleans are where the premium sits, because a host or property manager on a deadline is paying for certainty as much as for cleanliness. Bumble Bee reports $120,000 to $140,000 a month, and Mondragon puts early-stage margins at 40 to 50 percent before staff and management layers compress them.

Joshua Brown found the same split in pressure washing. Driveways get the company in the door. Roof cleaning, a soft-wash chemical process rather than raw pressure, commands prices well above driveways and siding, and homeowners do not want to do it themselves because it means standing on a roof. Brown's reported about $2 million a year by 2023.

Trevor Kokenge runs the landscaping version. Mowing, trimming and routine yard work keep Plan-It Vision's crews busy and the cash flow predictable, and design and construction projects for the same property owners carry the margin. UpFlip's coverage puts the business at $22,000 to $29,000 a month at roughly 30 percent margins, against an industry average his entry puts nearer 5 to 6 percent.

Same machines, a second way to pay

Dave and Carla Menz added wash-and-fold across their Queen City Laundry stores and launched pickup and delivery in 2016, a service their timeline says grew past the stores. The four locations now report over $2 million a year at roughly 40 percent margins. Both services run on machines the stores already had, sold to people who would rather pay than spend an afternoon in a laundromat.

Christian Sanya came in from the other direction. She started washing strangers' laundry through the SudShare app in 2019 while working as a lab technologist, earned $46,000 from it in 2022, and used that income to open The Laundry Room, a 40-machine store bringing in about $24,000 a month. She still fulfils around twelve hours of laundry requests a day. Her entry describes the model as two revenue shapes on one set of machines, and the laundromat category page has both owners side by side.

Owning what the job needs

Clayton Roll takes the idea furthest. Rolling Operations in Quincy, Illinois rents roll-off dumpsters, then shipping containers for storage, excavation equipment and apartments. A demolition job rents his excavator, and the debris goes into his boxes. Roll does not disclose revenue, and we do not estimate it, but his entry makes the mechanism clear: each line keeps the others' equipment busier than a dumpster-only competitor's would be.

Daniel Tom's version is narrower. Construction sites above a modest crew size must provide sanitation by law, which gives Bay Area Sanitation its base demand. Events stack a seasonal layer on top of the same fleet of almost 2,000 units, which reported $4.3 million of total income in 2025. The legally mandated demand piece covers the construction side.

When the add-on gets its own name

Steve Hunsaker books more than $800,000 of holiday lighting in about eight weeks. Once that brand was established he added permanent exterior lighting under a second brand, for installs that run all year. His entry describes it as a layer on top of the seasonal business, which still carries the headline figure.

The same logic shows up from the buyer's side. When Sam Evans sold You Call We Haul in 2024, the buyer ran a house-flipping and estate-transition company that produced constant cleanouts. For him a junk removal operation was a captive vendor, worth more than it was to anyone without that pipeline. The exits ledger keeps finding buyers like that.

What the entries suggest

The add-ons that paid were sold to people who already trusted the operator, and they mostly ran on trucks, machines or crews the owner was already paying for. The premium sat in work with a deadline or a ladder attached: a move-out date, a guest arriving, a roof. None of the owners describes a second line that needed a new kind of customer found from scratch.

There is a cost. Every new line adds people to schedule, and Mondragon is direct that margins compress as staff and management arrive. Our piece on the margin cliff shows how revenue can grow while the owner's share shrinks, and the margin ledger has each trade's figures. Every owner named here is in the database with sources, and start here explains how we document them. This site is one of SideRoad's weekly builds.

Common questions

Keep reading

• The size of one bill, ranked
• The margin cliff: why doubling revenue can cut your income
• Buy it or build it?