Crane lifting a 90 ton rooftop unit onto a roof

Our Commitment

One contractor, one phone number, a team that knows your equipment. We stand behind the work and the people who do it.

The AMS Standard

One call covers HVAC and HVAC-related piping and plumbing, with trusted subcontractors when a job needs them.

Members of Pipefitters Local 537 maintain, repair and replace your mechanical systems. You stop managing vendors.

The Pillars of Our Mechanical Standard

Four things we do on every job.

Whole-System View

We trace a problem through the whole system, not just the unit that tripped.

Reliable Equipment

Scheduled PM visits keep equipment running and repair costs predictable.

Clear Communication

You know what we found, what we fixed and what is next.

Safety Compliance

Whole team OSHA 30 trained, a written safety program and full OSHA compliance.

Safety

Safety is how we work, on every job.

Your building stays open while we work. We plan around occupants, staff and schedules, and we work safe.

  • Our entire team is OSHA 30 trained.
  • AMS has a written safety program.
  • Our safety training is ongoing.
  • We follow all OSHA compliance requirements on every job site.
  • Our technicians are members of Pipefitters Local 537.

Have your own site safety rules or sign-in steps? We follow them.

Precision on Every Call

It starts with the first site walkthrough.

We check each system against how your building actually runs, then set PM visits to match.

Ductwork along a commercial ceiling
Piping with pressure gauges in a mechanical room

Long-Term Partnership

Beyond the Service Call

Spring chiller startup, fall boiler startup, and every visit between. We know your equipment because we keep coming back.

Heating manifold and circulator pump

Reliable Service for Every Building

One building or a whole campus, the plan fits the equipment you have.

Technician servicing a rooftop condensing unit
Boston street with historic brick buildings

Service-First Perspective

Maintenance first. Repairs when needed. One number either way.

We stay ahead of wear on PM visits and fix the root cause when something does fail, so your facility stays online.

“One Call That Solves It”

“We used to juggle three different vendors for our rooftop units and exhaust fans. Since bringing in AMS, we have one call that solves the problem. They caught a major issue during a routine check that would have shut us down in July. Great team that knows the equipment and gets the job done.” Facility Manager