Parking Lot Seal Coating
Apply a thin layer of asphalt sealant to parking lots to protect and restore them. Charge 15-25 cents per square foot while material costs only 6 cents per square foot. A 46,900 sq ft church parking lot generates ~$9,000 in revenue in one day with ~60% profit margins. Best day revenue was $13,000 for a single seal coating job. Requires a trailer with a 275-gallon tank and spray system (~$6,000 used).
Startup Budget
$6K – $15K
Difficulty
Intermediate
Business Type
Offline
Location
Anywhere
Time Commitment
Full-time
Revenue Potential
$20000+/month
Skills Needed
Watch the Full Breakdown
Watch on YouTube — Chris Koerner
Related Offline Intermediate Ideas
Wholesale Snack Distribution
Distribute snacks, jerky, candy, chips, and sodas to gas stations, convenience stores, and gift shops as a wholesale distributor. No vending machine needed. Highly scalable.
$5k-20k/month
Insulation Removal & Reinstallation
Remove old cellulose insulation from attics, seal air leaks, and reinstall blown fiberglass insulation (R49+). Average ticket is $10,000 for a 2,000 sq ft home with 52% gross margins and 15-20% net. Can be fully subcontracted with no equipment needed.
$50k-100k+/month
Duct Sealing (Aeroseal)
Seal leaky ductwork using Aeroseal technology, which pressurizes the duct system and sends sealant particles to automatically seal holes and cracks. Can be sold standalone or bundled with insulation services. Third biggest revenue driver mentioned, contributing to over $1M/year.
$30k-80k/month
Home Performance Business (Full Suite)
Comprehensive home energy and air quality business combining insulation, duct sealing, duct cleaning, air scrubbers, and HVAC upsells. Uses a subcontractor model requiring no tools or crew of your own, with Facebook ads driving free attic inspection leads. Can generate over $1M/year net profit in one metro area.
$80k-200k+/month