A college degree is not the only road to degree-level money. For some people, one trailer could get there faster. This guide covers six boring businesses: seamless gutters, concrete flatwork, pole barn erection, spray foam insulation, asphalt driveway paving and whole home standby generator installation. Each one leaves something permanent on a property, and each is measured against what a bachelor's degree pays. For every business, we count how many installs a month could pass that number, income first and startup cost second.

This article is for educational purposes only and is not financial advice. Income figures are published ranges and examples, not promises. Licence, permit and insurance rules vary by state, county and city, so check the rules where you live.

Key Takeaways

  • The scoreboard is the Bureau of Labor Statistics median for people with a bachelor's degree: $1,578 a week in 2025, or about $82,000 a year, or about $6,800 a month.
  • Seamless gutters have the lowest cost to start. Used rigs turn up for about $8,000, and about four installs a month beat the degree number on sales alone.
  • The pole barn pays the biggest single check. Labor on a 40x60 barn sits around $14,000 at the middle of CurrentCost's range, about twice the monthly degree number.
  • Spray foam has the highest equipment wall, at $55,000 to $125,000 for a new rig. Standby generators carry the highest price tag, with installed systems up to about $23,000.
  • All six follow one idea, the Leave Behind Install: homeowners pay more for things that stay, and the thing that stays keeps selling the next one.

The Scoreboard: What a College Degree Pays

The Bureau of Labor Statistics (Education Pays) reports that people with a bachelor's degree earned a median of fifteen hundred and seventy eight dollars a week in 2025. That is about $82,000 a year, or about $6,800 a month. For each boring business below, the question is simple: how many installs a month could pass that number?

The story follows Harry, a propane truck driver on a rural fuel co-op route. Every day he fills tanks behind other people's houses, and he keeps noticing who gets paid to build things on those properties. That observation led to his list of boring business ideas, easiest first and hardest last.

1. Seamless Gutter Installation

A seamless gutter trailer turns a plain roll of aluminum into a finished gutter in the customer's driveway. One owner on Contractor Talk plans his whole business around an average sale of about $2,000 a house.

The income

eFinancialModels puts a gutter install at $1,000 to $5,000 a job, or $3 to $20 a foot. An installer on Reddit says he gets about $10.50 a foot on houses. Picture six installs in one month at $2,000 each: that is $12,000 in sales. eFinancialModels says owners keep about 20 to 30 percent, so at 25 percent that is about $3,000 kept.

On sales alone, four installs a month beat the degree number. On what you actually keep, it is closer to fourteen.

Fourteen sounds like a lot until you see how few people do this. IBISWorld counts about 4,929 gutter service businesses in the whole country in 2025, which is fewer than 5,000 for every roof in America.

The cost

A new portable K-style gutter machine runs about $9,000 to $18,000 or more, according to New Tech Machinery. eFinancialModels puts a full start at $10,000 to $30,000, with licensing and insurance at $500 to $2,000. Used rigs come up, though. One Reddit poster saw a 16-foot trailer in Dallas with the machine, ladders and tools for about $8,000.

No national gutter certificate turned up in the research. What matters is the local licence, the insurance and practice. Beginners run the machine on scrap coil before they touch a customer's house.

Getting the first customers

Roofers pay subcontractors because gutter work comes after the roof is done, and that gap is the opening. The same Reddit installer says window, siding and roofing companies pay subcontractors about $5 a foot and bring the leads. Direct homeowner installs pay more, about $10 to $15 a foot. So start with the roofers, then build your own list with a Google Business Profile, flyers on streets with older houses and a review request from every happy customer.

Real operators do this. Joseph Carter, a former power line installer, runs M and A Seamless Gutter and Construction Services in St. Albans as a family business built on craftsmanship. A KRGV news profile covered David's Aluminium Seamless Gutters, a family firm that added carports and pergolas to its gutter work.

Pro tip: carry a short piece of finished seamless gutter to every estimate. The homeowner holds it, sees there is no seam, and the price starts sounding like a gutter instead of a number.

2. Concrete and Flatwork

Concrete flatwork covers driveways, patios, sidewalks and shop floors. Wexford Insurance puts flatwork at about $4 to $10 a square foot. A 600-square-foot driveway at $7 is $4,200 on one pour. Wexford says owners keep about 10 to 20 percent, so at 15 percent that driveway leaves about $630. About eleven driveways a month at that margin could pass the degree number. That is a busy crew, not a solo weekend, but the pond is huge: IBISWorld counts about 90,964 concrete contractor businesses in 2026.

HostPapa says a small concrete business could start with as little as $17,000. That is about $5,000 down on a truck plus $7,000 to $9,000 in tools, including a towable mixer. Bizzby puts a lean start at $10,000 to $30,000 with a used truck or trailer.

For a credential customers recognize, the American Concrete Institute runs a Flatwork Finisher certification. It asks for 1,500 hours of finishing experience plus a performance exam, and costs about $325 to $625 depending on who runs the class. To start, work under a finisher until the hours add up, then take small patios and walkways first. Month one might be one patio. By month twelve, a builder could be sending you a driveway a week.

Pro tip: photograph every finished slab before the first car parks on it. That photo becomes the next quote.

3. Pole Barn and Post Frame Erection

CurrentCost puts the labor alone on a 40x60 pole barn at about $9,600 to $18,000. BuildMat Insight lists shell labor at $16,900 to $27,500, and its turnkey labor range climbs to $33,700 to $53,900. That is labor only. The customer owns the land and the kit, and you bring the crew, the rented machine and the know-how.

At the middle of CurrentCost's range, one barn's labor check is about $14,000, about twice the monthly degree number from a single building, before you pay your crew. BuildMat says a seasoned four-person crew puts up a 40x60 shell in about seven to ten working days, so one crew could finish about one barn a month, maybe one and a half.

Where the customers come from

Kit sellers sell the building, and the buyer still needs someone to stand it up. Keen's Buildings and Hansen Pole Buildings both sell 40x60 kits, from about $12,013 for an open one to about $21,100 to $28,600 enclosed. Every kit that ships is a pile of posts and trusses waiting for a crew, so call the kit dealers near you and ask who they send buyers to.

Simplywise points out that a pole barn usually takes two crews: one frames, and a separate concrete crew pours the slab. BuildMat prices that slab at $9,600 to $14,400 on turnkey jobs. An owner who can do both keeps the slab money too, which is why concrete is on this list.

The cost

You do not have to own the big machine. A telehandler or skid steer with a truss boom rents for about $350 to $600 a day, and fall arrest and roof gear runs about $800 to $1,500. The building permit usually belongs to the owner, and ProjectCostPro puts it around $250 to $600. Lester Buildings says permit rules vary by state, county and city, and ProjectCostPro tells buyers to confirm their builder is licensed and insured.

Month one might be zero barns while you call dealers. By month six, one barn a month is realistic for a crew that already knows framing. Pro tip: rent the telehandler by the day for the first barns and buy only when the barns keep coming.

4. Spray Foam Insulation

SprayEZ, which sells spray foam equipment, says one residential project brings in about $10,000, with about $5,000 in gross profit. They put the net at about 25 percent, or about $2,500 kept from one house. Three projects a month at that rate is about $7,500 kept, which beats the degree number. That is the equipment seller's math, so check it against real quotes in your own area. Fortune Business Insights puts the US foam insulation market at about $6.13 billion in 2025.

The cost is the real wall. Oak Ridge Poly puts a new rig and equipment at $55,000 to $125,000 and says payback takes about five years. A fresh air respirator system adds about $300. The Spray Polyurethane Foam Alliance runs a Professional Certification Program that costs about $500 to $600, calls for an OSHA 30 card and renews every seven years.

It works because builders keep framing houses, and every framed wall gets insulation before the drywall goes up. The foam crew that shows up on time becomes the builder's first call. To start, work a season on someone else's rig and get certified before buying your own. Month one could be one attic. By month twelve, a builder or two could be sending you every new house they frame.

The Mistake That Almost Cost Harry His Best Month

In month eight, Harry landed his first big direct homeowner install. He measured the house footprint, wrote a quick price and shook hands. At the install he found extra corners and extra downspouts that were never in the price.

He did not eat the loss and he did not argue. He measured again on the spot, added the extras as a line on the invoice and had the homeowner approve it before cutting more coil. The homeowner said yes. His rule after that: count corners and downspouts before you price.

The Leave Behind Install

Each business so far leaves something behind: a gutter on the roofline, a slab, a barn, foam inside the walls. Harry calls this the Leave Behind Install. Homeowners pay more for things that stay, and the thing that stays keeps selling for you. The neighbor sees the new gutters, the farmer down the road sees the new barn, and one install can become the reason for the next one.

5. Asphalt Driveway Paving

The Asphalt Advisor says a two-car driveway runs about $3,000 to $5,500 installed. LatestCost averages about $4.50 a square foot, with a range of $2 to $7, and its numbers put about $1.50 to $3.50 of each square foot in labor. Two average driveways is about $8,500 in sales, which is above the degree number in sales, not in profit. Nobody in the research published a clean paving margin, so none is invented here. Material runs about $70 to $130 a ton at the plant, according to Asphalt Calculator, so price every driveway with that ton number in front of you.

IBISWorld counts about 138,636 paving contractor businesses in 2026, which shows people keep paying for this year after year. The machines are the cost. Di Tran Enterprise, in a paving startup guide, puts a good used paver at $50,000 to $80,000 and a used roller at $15,000 to $25,000.

A driveway is the first thing a visitor sees, and once one house on a street gets fresh asphalt, the house next door looks tired. Paving owners on Reddit say the first move is not the machine but a relationship with an asphalt plant and a gravel supplier. Licence rules vary by state. To start, crew with a paver for a season and learn how they quote. Month one could be one driveway, and by month twelve a few driveways a month in season could be realistic.

6. Whole Home Standby Generator Installation

GeneratorMatch shows an average standby install of about $8,000 to $15,000. Modernize puts installed systems at $8,000 to $23,000. Angi's national average is lower, about $5,156, with most between $1,512 and $8,803. Generators are sized to the house, so the price follows the house, and the installer's slice is the labor. Modernize puts installation at $3,000 to $8,000, and Angi puts labor and installation at $1,500 to $5,000. On Modernize's installation line, two or three installs a month could pass the degree number, before your own costs. That is two or three houses, not fourteen.

Certification

The Generac Installation Training course is online, costs about $100 and can take as little as three hours. You pass three modules at 80 percent, there is no prerequisite and the certificate lasts two years. You do not have to be an electrician to take it. The licensed part is the hookup, and that is where a licensed partner can come in. Angi puts electricians at about $50 to $100 an hour.

To service generators too, Generac's air cooled service certification is separate. It takes online prerequisites plus a hands-on class at one of eight US sites. The level one tool kit costs $1,699, and the certification renews every year for about $150.

Customers and cost

Generac's dealer program offers pre-qualified leads, rebates and marketing funds, and its dealer locator sends homeowners to listed dealers. GeneratorMatch connects homeowners with installers for quotes. C and C Generator Services in Danville, Virginia is listed as a Generac authorized dealer for service. This is the biggest Leave Behind Install on the list: when the power goes out, the one house with the lights on becomes a showroom.

Nobody in the research published a clean startup number for a generator business. The known pieces are the $100 course, the $1,699 tool kit if you add service, a work truck and insurance. Wiring and gas hookup are licensed work in many places, so check your state. Pro tip: walk the house with the owner and list everything the family wants to keep running in an outage. That list sets the generator size, and the size sets the price. Some of these generators run on propane, the same kind of tanks Harry fills every week.

Where Harry Landed

Harry's rig was paid off by month six, and his first direct homeowner installs came in month eight. By month fourteen his best month was six installs, about $12,000 invoiced and $2,987 kept, about 25 percent, right inside the range eFinancialModels gave. He still drives the propane truck. On the scoreboard he is at six installs out of about fourteen, and he knows what the other eight look like: same rig, same roofer, more streets.

The book that changed how he counts is Profit First for Contractors by Shawn Van Dyke. Its big idea flips the usual math: sales minus profit equals expenses. Take your profit first and run the business on what is left. Harry stopped counting what he invoiced and started counting what he keeps.

Three Filters Before You Pick One

  • Does it leave something behind that the neighbors can see?
  • Can you start under someone who already has the customers, like a roofer, a finisher or a dealer?
  • Can one truck and one trailer carry your whole first year?

Three yeses, and your first install could happen this season. Lowest cost: gutters. Biggest single check: the pole barn. Highest price tag: the generator. If you want to compare other low-cost ideas, see 6 Boring Businesses That Make Money (Under $500 to Start), or look at credential-based paths in 5 High-Paying Trades Most Grads Ignore (Under $2K to Certify).

One Free Step to Take in 24 Hours

Walk around three houses on your street and count the corners and downspouts on each. Then call one roofer near you and ask who does their gutters and what they pay a foot. That one call tells you whether your first subcontract is already out there.

Watch the Full Video

Want to see the numbers and the Leave Behind Install idea in action? Watch the full video walkthrough, 6 BORING Businesses That Pay More Than a College Degree (One Install at a Time). Then drop a number from one through six in the comments for the business you would start, and vote on the lane for the next list: trades, machines or home businesses.

Sources include the Bureau of Labor Statistics, eFinancialModels, Contractor Talk, IBISWorld, Wexford Insurance, HostPapa, Bizzby, CurrentCost, BuildMat Insight, Simplywise, ProjectCostPro, Lester Buildings, SprayEZ, Oak Ridge Poly, the Spray Polyurethane Foam Alliance, Fortune Business Insights, The Asphalt Advisor, LatestCost, Asphalt Calculator, GeneratorMatch, Modernize, Angi and the Generac dealer program.