Los Angeles World Airports: HVAC & refrigeration bid work guide

What an LAWA facility portfolio generally includes

At LAX the visible buildings are the passenger terminals arranged around the central terminal area, the connecting concourses and the international terminal complex. Behind them sit buildings most travelers never see: airline maintenance and ground-support facilities, cargo and air freight buildings, a central utility plant arrangement serving the terminal core, administrative and operations offices, ground transportation and parking structures, and public safety and police facilities. Confirm the current inventory with the agency, because LAX has been under a long-running modernization program and the list changes.

Van Nuys is a different animal. It is a busy general aviation airport with hangars, fixed base operator buildings, an administration building, maintenance shops and fire-rescue facilities. Hangars bring their own mechanical questions, including large-volume heating, ventilation for fuel and solvent areas, and conditioned office mezzanines attached to otherwise unconditioned space.

For the purposes of scoping, think in categories rather than addresses: public terminal space, back-of-house airline and operations space, concession and food-service space, cargo and warehouse space, central-plant and utility space, and parking and support structures. Each category has its own equipment mix, its own owner or tenant, and often its own access rules.

Where the mechanical load actually lives

A terminal is a high-occupancy envelope with a lot of glass and a lot of internal heat. Large built-up air handlers, chilled-water coils and variable-volume terminal units do most of the work, and the central plant behind them matters as much as the air side. Chiller sequencing, condenser-water quality, pump performance and controls that stage capacity against a swinging passenger load are where efficiency and reliability are won or lost. See our chillers and central plant service overview for the equipment side.

Concessions are the second load center. Food courts and restaurants bring walk-in coolers, reach-ins, ice machines, hot water demand and kitchen exhaust with make-up air, all in leased tenant space that is hard to shut down in the middle of the day. Ice machines in airport concessions run hard and are often fed by water that was never designed for them. Our notes on commercial ice machine service and kitchen ventilation and make-up air apply directly.

Third are the spaces where failure is operationally serious rather than merely uncomfortable: IT and telecom rooms, security screening areas, airline operations rooms, police and fire facilities, and cargo areas that hold temperature-sensitive shipments. Those are the spaces where redundancy, alarming and fast diagnosis matter most.

How work is generally procured

LAWA is a City of Los Angeles department, so its contracting generally runs through the city's framework: board-level approval of larger contracts by the Board of Airport Commissioners and, depending on size and type, city council action. Capital projects are typically formally bid or procured through a qualification-based process, while maintenance and repair needs are commonly handled through multi-year service agreements, on-call contracts or job-order style vehicles. The mix changes by program.

Vendors generally register through the city's business assistance and bid-notification systems and through any portal the agency uses for its own solicitations. The city and the airports have also operated small, local and disadvantaged business participation programs that can affect how a bid is structured and which subcontractor tiers are expected. Confirm current requirements, thresholds and portal names directly with the agency before relying on any of this.

Airside versus landside access

The single biggest planning difference between an airport and any other building type is where the work sits relative to the security line. Landside work, in public lobbies and parking structures, is a matter of traffic control, public protection and noise. Airside and secured-area work, on the ramp, in the sterile areas of the terminal or in baggage handling areas, adds airport security rules, movement-area restrictions and, in some places, vehicle permits and driver training.

Rooftop units on terminal buildings and on cargo or maintenance buildings can be reached from the ramp, from within the building or by crane from landside, and each route has a different approval path. Crane lifts near aircraft operations in particular require coordination with airport operations and, where applicable, review for height and obstruction. Plan these lifts early and treat them as schedule drivers, not afterthoughts.

Badging, background checks and escorts

Anyone who works unescorted in secured areas of a commercial airport generally needs an airport-issued identification badge, which in turn requires a background check, fingerprinting, security training and sponsorship by the contractor. Processing time varies and is rarely short. A team that is staffed at the last minute will lose weeks to badging alone.

Escorted work is possible in some areas but it consumes airport staff or badged contractor staff, limits crew size and slows production. For a large replacement, the sensible assumption is that every crew member, supervisor and delivery driver who needs recurring access should be badged ahead of mobilization, with a short list of escorted exceptions. Confirm current badging procedures, fees and processing times with the airport's security office.

Phasing work in a building that never closes

Airport schedules are built around the flight day, seasonal peaks and major events, not around the construction calendar. Holiday periods, summer travel and large international events tend to be blackout or restricted-work periods. The practical result is that shutdowns are small, scripted and repeated: one air handler, one zone, one chiller at a time, with temporary cooling or load transfer in place before the existing unit is isolated.

• Build the sequence of operations before the first isolation valve closes, including what the building does if a step has to be reversed.
• Identify spaces that cannot lose cooling at all, such as IT rooms and security operations, and design temporary cooling for them first.
• Pre-fabricate and stage as much as possible offsite so that the on-site shutdown window shrinks to connection and startup.
• Schedule noisy or disruptive work for the quietest operational windows the agency will approve, and expect those windows to be short.

Labor and wage compliance

Public works for a City of Los Angeles department are generally subject to California prevailing wage law, with contractor registration with the Department of Industrial Relations and electronic certified payroll reporting. City and airport programs may layer additional requirements, such as local hire or targeted hiring provisions, and some large airport capital programs have been delivered under project labor agreements. Whether a given solicitation is covered is stated in the bid documents, so read them closely and confirm current requirements.

UA Local 250 labor, PLA readiness and certified payroll are how Davinci staffs prevailing-wage projects, which fits airport programs that carry labor provisions. Our prevailing wage guide explains the general mechanics.

How Davinci approaches airport-class work

Davinci mobilizes from Orange County and pursues LAWA work as larger bid-level projects, with staging planned inside the airfield rules. For a large airport project that means the questions we ask first are about logistics: where materials stage, how badging is sequenced, what the shutdown windows look like and who owns controls integration.

We start with root-cause diagnostics instead of replacing parts until the symptom disappears. On a recurring comfort complaint or a chiller that trips at peak load, we want to know why before anyone writes a replacement scope. Every asset we service can be tied to a QR-coded record in the DaVinci Portal, with service history, readings and photos, which is the kind of documentation an airport asset manager can actually use. See also airports, ports and transit and the Los Angeles County regional page.

What to have ready before you bid

• Current California contractor license and DIR registration, plus any City of Los Angeles business registrations the solicitation calls for.
• Insurance and bonding documents meeting the limits stated in the bid package, confirmed with your broker before the bid date rather than after.
• A staffing list with names, trades and badge status so that security processing can start the day after award.
• A draft phasing and temporary cooling narrative, since reviewers at an airport read for it.
• A certified payroll process and a plan for any apprenticeship or local-hire reporting the bid requires.
• Subcontractor and supplier lists including any small or local business participation the solicitation expects.