Frequently asked questions.
Find answers to common questions about our building management systems, open protocols, maintenance services, and utility incentive programs.
How a BMS works.
What is a BMS?
A Building Management System is the nervous system of a commercial building. It's a network of controllers, sensors, and software that ties together HVAC, lighting, and other mechanical systems so they operate as a coordinated whole instead of a collection of isolated equipment. Practically, it's what lets a building engineer see what's happening everywhere from one screen — and fix most of it without leaving the office.
Why do I need a BMS?
Without one, equipment runs when it doesn't need to, small faults drift for weeks before anyone notices, and every schedule change is a walk around the building flipping switches. A BMS turns that into a system you can manage from one place — and it usually pays for itself through energy savings and longer equipment life well before the warranty period runs out.
Can you customize a BMS for my building?
Yes — every building we work on gets its own sequences of operation, graphics, and setpoints. We don't install a generic, copy-paste configuration. The hardware and software platforms we use (Tridium Niagara, ALC, Reliable Controls) are designed to be programmed to fit the specific mechanical plant and the specific way your team runs it.
What service areas do you cover?
Our core service area is eastern Massachusetts, greater Boston, and most of New England within driving distance of our Chelmsford office. For customers with multiple sites, we travel further for projects and provide remote support nationally. If you're outside our regular area, give us a call — we can usually sort out coverage.
What's the difference between BMS and BAS?
The industry uses them interchangeably, and honestly the line is fuzzy. If we had to draw one: a Building Automation System handles the control logic for individual pieces of equipment (a rooftop unit, a boiler, a VAV box), while a Building Management System is the layer above that coordinates those pieces and gives you visibility across the whole facility. On most jobs, the two are the same system — just marketed with different labels.
What's the difference between an EMS and a BMS/BAS?
An Energy Management System is focused on a single question: how much energy is this building using, and where. A BMS is broader — it runs the equipment, enforces schedules, and holds setpoints. In practice, most of our customers end up with one integrated system that does both, because energy data is most useful when you can act on it through the same interface you already use for everything else.
Why we build vendor-neutral.
What is an open protocol?
An open protocol is a published, standardized way for devices to talk to each other — meaning anyone can build equipment that speaks it, and any of that equipment can be integrated into your system. The alternative is proprietary: a chiller controller that only talks to its manufacturer's software, or a thermostat locked to one vendor's cloud. We build exclusively on open protocols so you're not stuck with whoever installed the system.
What are the benefits of an open-protocol BMS?
Three big ones: you can mix vendors on the same system (so you're buying the best chiller, not the chiller that talks to your controls), you can bring in a different contractor down the road if you need to (you're never locked into a single service provider), and you can add new equipment years later without ripping out the network. Put simply: you own the building, and the system works for you instead of the manufacturer.
What are common open protocols?
The big three in our world are BACnet, Modbus, and LonWorks. BACnet is the standard for building-level HVAC integration and is what we reach for on most new work. Modbus shows up constantly on pumps, VFDs, and meters. LonWorks is older but still widespread in existing lighting and HVAC installations — we integrate with all of them routinely.
Is building automation expensive?
It's not cheap, but the question we'd rather answer is "when does it pay for itself?" On most of the buildings we work on, energy savings alone close the gap in three to five years — and that's before counting extended equipment life, avoided service calls, and Mass Save or utility incentives that can knock 30-70% off the upfront cost. We're happy to walk through the numbers for your specific building before you commit to anything.
Maintenance and service.
Does a BMS need maintenance?
Yes — a BMS is a system of sensors, controllers, and software, and all three drift over time. Sensors miscalibrate, controller batteries fail, building use changes so the old schedules no longer fit. An annual tune-up keeps the system reading reality correctly and keeps the control sequences aligned with how the building is actually being used — without it, even a well-installed BMS loses about 10-20% of its performance per year.
Do you provide onsite support?
Yes. We keep a team of field technicians in Chelmsford who handle onsite service across New England — diagnostics, repairs, sensor replacement, programming changes, and scheduled PM visits. Most service-plan customers see the same two or three techs on every visit, which matters when your building has quirks that don't show up in the documentation.
Do you offer remote assistance?
Yes — most systems we install are remotely accessible through a secure VPN, so we can diagnose alarms, make programming changes, and resolve issues without a truck roll. For service-plan customers, our team monitors alarms proactively; often we've already looked at the problem before you call us about it.
What's the best maintenance plan for my building?
It depends on building size, equipment age, and how critical uptime is for your operation. A small office with a few rooftop units has different needs than a municipal water treatment plant. Our service plans are designed to match that range — we can walk through which one fits after one site visit and a look at your current system.
Why should I buy a service plan?
Two reasons. First, service plans make you a scheduled customer — when something breaks, you're ahead of the queue, and our techs already know your building. Second, the preventive maintenance catches small problems before they cascade: a failing differential pressure sensor gets replaced during a scheduled visit instead of at 2 AM during a heatwave. The math usually works out in favor of the plan within the first year.
How do you handle cybersecurity?
We treat control networks as critical infrastructure, because they are. BMS networks are isolated from your office network, remote access is VPN-only with MFA, and we follow vendor security advisories closely (including coordinated patching for Niagara vulnerabilities). For customers with formal IT security requirements, we work directly with your team on configuration, network segmentation, and documentation.
How utility incentives work.
What are utility incentives?
Utility incentives are rebate and cost-sharing programs that utilities (like National Grid and Eversource, through Mass Save) use to reduce peak demand and overall energy consumption. For building automation, that usually means paying a portion of the equipment and installation cost for projects that will cut energy use. They're not loans — you don't pay the money back.
Does my building qualify?
Most commercial, institutional, and municipal buildings in Massachusetts qualify for at least one incentive program. The qualifying factors are usually building type, utility territory, and the type of work being done — a lighting retrofit has different rules than an HVAC control upgrade. We run the qualification check as part of our normal project scoping.
How much can I save?
Incentives typically cover 30-70% of the project cost for qualifying work, depending on the scope and the calculated energy savings. On BMS retrofits in Massachusetts, we've seen incentives cover more than half the install on several recent jobs. The exact number comes out of a utility energy model — which we build and submit as part of the project.
What happens after installation?
The utility verifies the work was done to spec and that the energy savings are real. That usually means a post-install inspection, submission of trend data from the new BMS, and sometimes a measurement-and-verification period (three to twelve months of usage data). We handle all of that documentation — you shouldn't have to talk to the utility directly.
Where can I find available incentives?
For Massachusetts, the main entry point is Mass Save, which consolidates programs from National Grid, Eversource, and the other utilities. But the useful programs aren't always on the public site — utilities run custom incentives for larger projects that require an application directly through an approved contractor. We've been on the approved-contractor list for years and know which programs will actually apply to your job.
Working with FMC.
Do you accept credit card payments?
We accept payment by check or ACH/EFT (electronic funds transfer) — no credit cards. For most commercial projects this is standard, and our accounting team can walk you through ACH setup in about 10 minutes if it's new to you.
Are you union or non-union?
We're a non-union shop, but we work alongside union trades regularly on larger projects — particularly in Boston, where most of the general contractors we partner with run union crews. For public construction work subject to prevailing wage, we bid and staff accordingly.
How quickly can you respond to an emergency?
For service-plan customers, there's a named engineer on the account and a guaranteed response window — typically four hours for critical issues, same-day for non-critical. For non-contract customers we do our best based on crew availability, but contracted accounts always go first. The fastest path is almost always remote — most alarms we can triage and resolve without a truck.
Still have questions?
Our team is ready to discuss your building's needs and answer any additional questions.
Or call 978·856·7862