Mechanical Contractor Equipment Deposit Cash Flow

TL;DR: Mechanical contractors place 30–50% deposits on HVAC equipment, boilers, chillers, and cooling towers with 12–30 week lead times. Without a material procurement or equipment deposit line in the schedule of values, those deposits are funded from operating cash for months. On a $600,000 mechanical subcontract with $180,000 in equipment deposits, the procurement cash hole can exceed the value of the first three pay apps. SPM negotiates equipment deposit SOV lines for every mechanical client before signing.

The Problem

What You Are Dealing With

Equipment Deposits Months Before Any Billing Event

A mechanical contractor orders a boiler with a 20-week lead time and a 40% deposit. The $72,000 deposit goes out in week one. The boiler arrives in week 20. Installation completes in week 22. The first pay app including the boiler line item is submitted in week 23 and paid in week 27. The deposit was funded from operating cash for 27 weeks — 6.5 months — before billing recovery.

Multiple Equipment Orders Stack the Cash Hole

A $600,000 mechanical subcontract might include a boiler, multiple air handlers, a cooling tower, and mechanical distribution equipment. Each has its own lead time and deposit requirement. If deposits total $180,000 and each is placed at order — staggered over the first 8 weeks — the cash hole at week 8 can be $180,000 with no billing events yet on any of the equipment.

Coordination Delays Extend the Timeline

Mechanical installation depends on other trades completing prior phases — structural, electrical rough-in, plumbing rough-in. When coordination delays push the mechanical installation schedule back, the equipment that has already been procured and deposited sits in a warehouse — funded from operating cash — for longer than the estimate assumed.

The Fix

How to Fix It

Equipment Deposit Line in the SOV Before Signing

The ask: a line item in the schedule of values for each major equipment category — HVAC equipment, boiler, cooling tower, mechanical distribution — billable at deposit payment with deposit documentation. This is the most important SOV line for a mechanical contractor. It converts a 6-month cash hole into a 30-day cash delay. Most GCs will accept it on equipment with documented lead times and deposit requirements.

Equipment Delivery Line Separate from Installation

Even if the GC will not accept a deposit-at-order line, ask for an equipment delivery line — billable when equipment arrives on site with a delivery receipt. This recovers the deposit cash 12–20 weeks earlier than waiting for installation to be complete. On a 20-week lead time boiler, delivery billing in week 20 versus installation billing in week 22 is a 2-week improvement — minor. But delivery billing versus installation-plus-inspection billing can be a 6–8 week improvement.

13-Week Forecast With Equipment Deposit Schedule

Every equipment deposit is mapped in the 13-week cash flow forecast at expected payment date. Billing recovery from the SOV procurement line is mapped at expected pay app approval. When a deposit goes out in week 3 and billing recovery is week 10, the 7-week gap is visible at week 1 — enough lead time to arrange short-term financing at planned rates rather than emergency rates.

Separate Job Costing by Equipment Category

ControlQore cost codes by equipment category — HVAC, boiler, cooling tower, piping distribution, controls — track procurement cost, installation labor, and commissioning separately. When a piece of equipment is procured and sitting in the warehouse, its cost is visible in the job costing as a procurement entry without a corresponding billing event. The underbilled position flags on the WIP schedule immediately.

Client Outcome

Real Results — Real Numbers

Electrical Contractor (Cross-Trade Equipment Deposit) · $2.3M Revenue

The mechanical equipment deposit dynamic is identical to electrical switchgear deposits. SPM's approach is the same — negotiate the SOV line before signing, map deposits in the 13-week forecast, track procurement in ControlQore.

$365,000 in AR recovered

Including equipment-related underbillings where deposits had been made without corresponding SOV lines.

Equipment deposit SOV lines

Added to all new subcontracts at execution — no more 6-month procurement cash holes.

FAQ

Frequently Asked Questions

What SOV line items should mechanical contractors negotiate?

Equipment deposit lines (billable at deposit payment with documentation), equipment delivery lines (billable at on-site delivery), phase-based installation milestones, and commissioning as a separate last line. The most impactful is the equipment deposit line — it recovers cash 12–26 weeks earlier than waiting for installation.

How do mechanical contractors handle long lead time equipment in cash flow?

Map every equipment order in the 13-week cash flow forecast at deposit payment date. Map the billing recovery at expected SOV line approval. The gap between the two is the procurement cash hole — visible 8 weeks before the deposit goes out. With 8 weeks of lead time, the response is planned (arrange a short-term credit line) rather than reactive (emergency MCA).

What overhead rate should a mechanical contractor use in bids?

Mechanical contractors at $1M–$3M typically run 13–20% overhead. At $3M–$6M, 11–18%. Equipment ownership cost — service vehicles, tools, testing equipment — is often excluded from overhead calculations even though it runs year-round regardless of project volume. Including it raises the overhead rate 2–4 points and produces more accurate bids.

How does mechanical coordination delay affect cash flow?

When structural or electrical delays push mechanical installation back, equipment already procured and deposited sits in a warehouse longer than estimated. The deposit cash hole extends proportionally. Mechanical contractors should track coordination delays in daily reports and evaluate whether they constitute owner-caused delay — potentially billable as additional overhead cost under the contract.

Equipment Deposits AreFunding the GC's Cash Flow.