At our facility
Hosted at the Spencer training center in Peabody, Massachusetts — classroom plus real equipment and job sites.
$70B
U.S. water & sewer line construction every year — over 40% the size of all HVAC contracting.
$3.98M
Average revenue per underground firm, against roughly $1.32M for the average HVAC contractor.
+200%
More revenue per firm than HVAC contracting. About 17,600 firms compete for it — not 120,000.
Sources: IBISWorld, 2026 — Water & Sewer Line Construction and Heating & Air-Conditioning Contractors. Revenue-per-firm derived from industry totals and firm counts, and rounded.
Depth 0′–2′ / the problem
The trade nobody trains
Plumbing, heating and electrical all have a path — apprenticeships, coaching networks, business training. Sewer, water, drainage, excavation and restoration have almost none of it. The knowledge sits in the heads of a few experienced foremen, and the day they retire it walks off the job site with them.
That gap is the opportunity. Fewer competitors, bigger jobs, higher tickets — and very few companies running it as a business. Most owners learn the money side by losing money until they figure it out. This program is the shortcut.
Depth 2′–5′ / the program
Four days, 8:00 a.m. to 4:30 p.m.
Day 1
Foundations. The whole trade and the iron: sewer versus septic, the methods menu, crews and fleet, OSHA and the cost of non-compliance, what it really costs to start, how to price, enterprise value, and daily demand.
Day 2
The business and the money. Your true cost of doing business and a defensible billable hour, job costing, reading your financials and KPIs, marketing that generates drain calls, the CSR, in-home sales, and how to pay people.
Day 3
People, safety and operations. Building the team, trench safety under OSHA Subpart P, materials and pipe, laying pipe to standard, connecting to the main, reading blueprints and tie cards, quality control, and scaling.
Day 4
Restoration, wealth and wrap. Restoring asphalt, concrete and landscape to standard; warranties and reinsurance to lift sales and build wealth; and your written 90-day launch plan.
Depth 5′–8′ / what you keep
What every company leaves with
- A printed classroom guide book — every key point, real job-site photography and technical diagrams.
- A working job-costing and billable-hour model in Excel, so you price to a target net profit.
- A complete, best-practice commission plan you can adopt.
- Reference guides and checklists — connections and bypass, blueprints and tie cards, quality control, scaling.
- Your own written 90-day launch plan for standing the division up.
Depth 8′–10′ / how it runs
Two ways to take it
At your location
Bring the program to your company, your group, or a regional or association meeting.
Depth 10′+ / who teaches it
Taught by an operator
Underground Advisory Group is the training arm of Spencer Contracting Corp. and Spencer Home Services — a multi-trade home services and underground utility contractor established in 1982 in Peabody, Massachusetts.
Founder Peter Holland has worked in the trade since 1979 and built and runs the sewer, drain and underground division he teaches. This is not a consultant’s theory. The trucks are still on the road.
Next step
Get the class dates
Tell us about your company and we will send the upcoming dates, the full agenda, and pricing. No obligation.
Prefer to talk? Call (978) 994-4813 or email peter@undergroundadvisory.com.
Just exploring
Or just ask a question
Not ready to talk dates? Ask anything about the trade — what the iron costs, whether your market supports it, how long it takes to turn a profit. A real answer from someone who runs the division, not a sales call.