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Mechanical Construction and Commercial HVAC Installation Services

P1 Construction, LLC provides a full line of mechanical construction and HVAC installation services for a variety of commercial, industrial, and government markets.

Single-Source: from engineering and design to off-site construction and installation, P1 does it all for an exemplary, seamless experience with your construction project.

All Trades Together: from the fabrication shop to the jobsite, P1’s mechanical, electrical, plumbing, pipe, and millwright teams work together to bring complex projects to life.

More than Construction: full MEP, millwright, and architectural metal capabilities, supported by design build, engineering, estimating, virtual design & construction, off-site construction, and construction manufacturing

helicopter install of rooftop hvac unit

Pipe and Plumbing

  • HVAC Piping

  • Industrial Process Piping

  • High Purity Piping

  • Polypropylene Piping

  • Water, Waste, and Vent Systems

  • Storm Drainage Systems

  • Medical Gas Systems

  • Chemical Waste Systems

  • Backflow Installation and Testing

Sheet Metal

  • Ductwork (Supply, Return, and Exhaust Air Systems)

  • Variety Of Alloys (Stainless Steel, Aluminum, Hastelloy)

  • Dust Collection Systems

  • crane installing fabricated system
  • hvac technician installing hvac system
  • installing new cooling tower
  • piping and plumbing inspection
  • piping system construction
  • sheet metal instsallation

    Related Construction Services

    Design Build and Design Assist

    P1 design-build solutions provide a single point of responsibility and offers the building owner many unique project delivery advantages. Constructing design-build and design-assist projects is a strength of P1. Due to our depth of expertise in a wide range of markets, we are qualified to suggest alternate solutions at both a basic and advanced system level.

    Virtual Design and Construction

    Through multi-trade, in-house VDC (Virtual Design and Construction), or BIM (Building Information Modeling) capabilities, P1 creates 3D computer-generated models of buildings, bringing all facets of a project together so potential conflicts can be identified prior to construction.

    Off-site Construction (Fabrication)

    P1 Construction LLC has fabrication and construction manufacturing facilities in Lawrence, KS, Las Vegas, NV, and Kansas City, MO to fabricate and build multi-trade integrated assemblies, with all trade shops working together, including pipe, plumbing, sheet metal, electrical, millwright, modular, and architectural metal.


    P1 can create complete in-house designs or effectively manage outside consultants. Depending on the budget constraint, P1 can offer cost reduction options from minor specification changes to major system changes.


    Using documented and proven historical cost information, P1 is able to provide reliable cost opinions and GMP (Guaranteed Maximum Price) Estimates used to determine the completed cost of the work and assist in the budget analysis.


    P1 develops a detailed schedule, taking into consideration design and drawing status, equipment deliveries, manpower loading, and project milestones, showing the involvement of all related project team members.


    P1 Construction, LLC partners directly with the customer or a commissioning agent to ensure new facilities will function optimally when turned over to the owner.

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    Work with Our Mechanical Construction Experts

    If you are ready to start your next mechanical construction project, contact our team of mechanical contractors today.

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    View Our Project Portfolio

    Still not sure if P1 Construction, LLC is the right fit? We encourage you to check out examples of our past work and hear from our satisfied customers.