Most owners meet ASE through one of these and end up using two. A service agreement turns into an equipment replacement. A general contractor's plan and spec package turns into design-assist on the next building. The capabilities are separable on purpose — and worth more together.
Diagnostics, preventive maintenance, and emergency response on chillers, boilers, rooftop units, hydronics, controls, and process systems in operating facilities.
Service → 02 · ConstructionPlan and spec mechanical, renovations, equipment replacement, self-performed piping and sheet metal, and process work — for general contractors and owners.
Construction → 03 · EngineeringLoad calculations, equipment selection, Revit modeling, and construction documents, applied as design-assist, design-build, or problem solving on existing systems.
Engineering →Technicians know how equipment actually performs after ten years in a building — where it fouls, where it short-cycles, what nobody can reach to service. That goes into the next design.
Reading design intent the way an engineer does means conflicts surface during coordination instead of in the ceiling, and equipment gets selected with installation and access already considered.
The people maintaining a system understand how it was installed, how it was commissioned, and how it was meant to operate — because in a lot of cases they installed it.
Field experience is what keeps a design from being theoretically correct and practically miserable. Constructability is settled on the drawing, not argued about in the field.
| Service agreement | Scheduled preventive maintenance and on-call response, from a single rooftop unit to a manufacturing campus with cleanrooms and process cooling. |
|---|---|
| Plan & spec | Competitively bid mechanical scope from a design engineer's documents, as a subcontractor to a general contractor or direct to an owner. |
| Design-assist | The owner's engineer stays on the project. ASE joins early for pricing, constructability, existing-conditions modeling, and long-lead equipment. |
| Design-build | When a project benefits from a single mechanical partner, engineering and construction come under one line of responsibility from concept through certification. |
| Owner-direct / prime | Prime contracts on renovations, equipment replacement, and process work — frequently growing out of an existing service relationship. |
| Preconstruction | Early involvement, clear assumptions, and progressive pricing from ROM through GMP — scope gaps, long-lead equipment, and schedule risks identified before they become field problems. |
|---|---|
| Estimating | Complete, legible scope letters stating what is included and what is not, so the number a general contractor carries is the number they get. |
| Documentation | Cloud-based construction documentation (Bluebeam Revu or Procore, scaled to project size) so the owner and team always work from current drawings, RFIs, and submittals. |
| Communication | Weekly OAC meetings during design and construction kickoff. Real-time schedules shared by read-only cloud link. Our guiding principle: bad news does not get better with time. |
| Field discipline | Integrated Work Plans for every task; Method of Procedure documents to facilities at least 7 days before any utility-affecting work; locked and monitored construction access. |
| Closeout | TAB, startup, controls checkout, commissioning, and certification responsibilities defined before construction begins — then executed by the same team that did the work. |
Service call, bid invitation, or a system you need designed and built — start with the people who will actually do the work.