A temporary heating system using fluid-filled coils laid on the ground to thaw frozen soil or maintain process temperatures. Subcontractors are often hired to install, monitor, and remove these systems during cold-weather operations. Common in northern pipeline and facility projects where ground conditions affect construction timelines.
Surface Coil System
Related Terms
Transmission Planning
IndustryThe long-term process of designing and expanding power grid infrastructure to meet future energy demand. For subcontractors, it drives project pipelines for line construction, right-of-way clearing, and equipment installation. Winning transmission work often requires early engagement with utilities and grid operators.
Leader (drilling Rig)
IndustryA vertical guide structure on a pile-driving or drilling rig that keeps the drill string or pile aligned during penetration. Subcontractors working near this equipment must follow strict exclusion zone protocols. It is also called a mast or leads on some rigs.
Design-Bid-Build
IndustryA project delivery method where design is completed before subcontractors are invited to bid. Scope is fully defined upfront, reducing ambiguity in your quote. Common in construction; less flexible once awarded, so price your bid carefully.
Surface Alignment
IndustryThe process of ensuring above-ground equipment, piping, or structural components are precisely positioned and levelled before commissioning. Subcontractors are often responsible for completing alignment checks as a hold point prior to handover. Poor alignment can trigger costly rework and delay final sign-off.
Tunnel Liner
IndustryA structural shell installed inside a bored tunnel to support surrounding soil or rock and maintain bore integrity. Subcontractors installing liners must meet strict tolerances and inspection hold points. Work is often sequenced tightly with boring crews, requiring close schedule coordination.
ABC (Associated Builders and Contractors)
IndustryA U.S. trade association representing merit-shop contractors in construction and industrial sectors. Subcontractors use ABC membership for training resources, safety programmes, and industry networking. Membership can also signal credibility when bidding on open-shop projects.
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