Mechanic's Lien

A pricing structure where subcontractors charge a marked-up "rack" rate for materials, plus a separate fee for delivery or handling. It allows field service companies to recover supply chain costs beyond base labour rates.

A measure of how long a company takes to pay its invoices after receiving them. For subcontractors, a high DPO from your client means slower payment and tighter cash flow. Tracking client DPO helps you anticipate payment delays and manage operating costs.

The direct costs subcontractors pay to deliver field work, including labour, materials, fuel, and equipment. These costs fluctuate with market conditions, directly squeezing margins if contracts aren't priced accordingly. Tracking them closely helps subcontractors identify when to renegotiate rates or escalation clauses.

A fixed, all-in rate quoted to a client that requires no further negotiation or adjustments. Subcontractors often offer a cash price to secure faster payment or simplified invoicing. It typically excludes extras like mobilisation, standby time, or material markups.

A formal written amendment to an existing contract that modifies scope, cost, or schedule. Subcontractors should never perform out-of-scope work without a signed change order. Undocumented changes are a leading cause of unpaid invoices and disputes.

A charge issued by an operator or general contractor to a subcontractor for costs incurred due to defective work, delays, or failure to meet contractual obligations.

Mechanic's Lien Rights for Subcontractors: What to Do When You're Not Getting Paid

A practical guide to mechanic's lien and materialman's lien rights for oilfield and construction subcontractors in Texas, Oklahoma, and Alberta — deadlines, filing steps, and leverage tactics.

What Happens to Subcontractor Billing When a Project Stalls, Goes Over Budget, or Never Gets Commissioned

You did the work. The project was cancelled, shelved, or never activated. Here is what subcontractors need to know about billing rights, legal remedies, and how to get paid when no one wants to discuss the invoice.

Post-Completion Warranty and Punch Work: Protecting Your Margins After the Job Ends

Warranty walks, punch lists, and post-completion callbacks eat into subcontractor margins. Learn how MSA warranty clauses work, when you can push back on mobilization costs, and how to document your way out of disputes.