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Commercial Building Automation System Installation & Integration
Com+ Mechanical designs, installs, and integrates BAS/BMS platforms for office towers, multi-tenant properties, and institutional facilities across the NYC metro. We bring chillers, boilers, RTUs, AHUs, and VAV systems onto one open BACnet front end you can actually run.
BAS Problems We Resolve During Installation & Integration
Proprietary controls locked to one vendor
Legacy or closed-protocol systems force you to call one contractor for every change and pay for every point. We install open BACnet architecture so any qualified integrator can service the building and add points without licensing roadblocks.
Equipment 'islands' that don't talk to each other
Chillers on one platform, RTUs on another, and boilers running standalone means no coordinated control. We integrate each system over BACnet or Modbus gateways onto a single supervisory front end with unified scheduling and alarming.
Pneumatic or analog controls that drift
Aging pneumatic actuators and receiver-controllers lose calibration, waste air, and can't trend or alarm. We retrofit to DDC with electronic actuators and digital sensors for repeatable setpoint control and full visibility.
Nuisance alarms nobody trusts
A flood of meaningless alarms trains staff to ignore the system. We configure alarm classes, delays, and priorities so an alert means a real fault — a frozen coil, a failed VFD, or a space out of range — not noise.
No trending, so faults stay hidden
Without historical trends you can't see a fouling coil, a hunting valve, or simultaneous heating and cooling. We set up trend logs and dashboards that surface drift before it becomes a tenant complaint or an energy penalty.
Tenant comfort complaints with no data
Hot and cold calls with no way to verify space conditions burn engineering hours. Zone-level sensing and graphics let your team confirm space temperature, airflow, and damper position before rolling a truck.
Open-Protocol BAS Installation Built for Multi-Tenant Buildings
A building automation system is only as good as its integration. Com+ Mechanical installs and integrates BAS/BMS platforms that put your entire mechanical plant on a single supervisory front end — air handlers, rooftop units, chillers, boilers, pumps, VAV and fan-powered terminal boxes, and metering — communicating over open BACnet/IP, BACnet MS/TP, and Modbus so you are not locked into one manufacturer. For new construction we deliver a complete DDC control system from field sensors to graphics; for existing buildings we retrofit pneumatic or legacy proprietary controls and integrate equipment you already own through native BACnet or protocol gateways. Every project is engineered around a written sequence of operations, point-to-point checkout of every input and output, and a graphical front end your building engineers can navigate without a vendor on the phone. The result is a system that holds setpoints, trends performance, alarms on real faults, and gives property managers portfolio-wide visibility from a browser.
What a Com+ BAS Installation Includes
Why a Properly Integrated BAS Pays Off
Our Simple Process
From call to comfort in 4 easy steps
Assessment & Controls Design
We survey existing controls, equipment, and network infrastructure, then engineer a points list, riser diagram, and written sequence of operations scoped to your building and goals.
Field Installation & Wiring
We mount and address DDC controllers, install sensors and actuators, and pull BACnet MS/TP and IP trunks, coordinating with your mechanical and electrical trades.
Integration & Programming
We bring third-party equipment onto the network over native BACnet or Modbus gateways, program control logic, and build the graphical front end with live points and floor plans.
Commissioning & Training
We perform point-to-point checkout, tune control loops, functionally test every sequence, configure alarms and trends, then train your engineers and hand off as-built documentation.
Types of Systems We Install
New-Construction DDC Control System
A complete ground-up building automation system engineered from the field devices to the front end, delivered with construction and integrated with the rest of the mechanical scope.
- •Full points list and sequence of operations from design
- •Native BACnet controllers throughout — no gateways needed
- •Coordinated commissioning with mechanical and Cx teams
Legacy & Pneumatic Controls Retrofit
Phased replacement of aging pneumatic or closed proprietary controls with modern DDC, integrating equipment you keep onto an open platform.
- •Pneumatic-to-DDC conversion with electronic actuators
- •Reuse of BACnet/Modbus-capable equipment via integration
- •Floor-by-floor or system-by-system phasing to limit disruption
Front-End / Supervisory Integration
A unified supervisory layer that brings existing standalone controllers and equipment islands onto one graphical front end with portfolio visibility.
- •Open supervisory platform over existing controllers
- •Custom graphics, trends, and alarm consolidation
- •Remote, browser-based access across multiple buildings
Why NYC Buildings Choose Com+ Mechanical
Mechanical and controls under one roof
We are a commercial HVAC contractor, not a controls-only shop. We understand the chillers, boilers, and air systems behind the points, so sequences match how the equipment actually runs.
Open-protocol, vendor-neutral approach
We build on open BACnet so you own your system. No proprietary lock-in, no licensing tollbooth on future points or service.
Portfolio-ready integration
From a single tower to a multi-building portfolio, we standardize graphics, naming, and alarming so managers get consistent visibility across every property.
NYC metro coverage and code awareness
We serve the five boroughs, Nassau, Westchester, northern NJ, and Stamford, with attention to local energy and emissions requirements like Local Law 97.
Transparent Pricing
No fees. No surprises. Just honest service.
Controls Assessment & Design
Site survey, equipment and network audit, points list, and a written sequence of operations to define scope before installation.
- On-site survey of existing controls and equipment
- Points list and BACnet/Modbus integration map
- Draft sequence of operations and riser diagram
- Budgetary scope for full installation
BAS Installation & Integration
Turnkey design-through-commissioning: controllers, field devices, network, integration, graphics, and operator training.
- DDC controller, sensor, and actuator installation
- BACnet/IP and MS/TP network plus Modbus gateways
- Custom graphical front end and control programming
- Point-to-point checkout, loop tuning, and training
Service & Optimization Agreement
Ongoing controls support: scheduled tuning, trend reviews, alarm management, graphics updates, and point additions.
- Scheduled sequence and loop tuning
- Trend review and energy optimization
- Alarm and database housekeeping
- Priority response and remote support
Final pricing is set after the controls assessment and depends on point count, equipment integration, and network scope.
Own a Commercial Property?
Business+ plans start at $499/year — includes 2 rtu tune-ups, 10% off all services, and priority scheduling.
Equipment & Brands We Service
Factory-trained technicians for all major HVAC manufacturers
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Frequently Asked Questions
Get answers to common questions about our services
What's the difference between a BAS and a BMS?
The terms are used interchangeably. Building Automation System (BAS) and Building Management System (BMS) both describe the integrated controls platform that monitors and commands HVAC, and sometimes lighting and metering, from a central supervisory front end. We design either as an open, expandable system rather than a closed appliance.
Can you integrate equipment from different manufacturers?
Yes. Integration is the core of what we do. We connect chillers, boilers, RTUs, VFDs, and meters from different manufacturers over native BACnet/IP, BACnet MS/TP, or Modbus gateways onto one front end, so mixed-vintage and mixed-brand equipment is coordinated under a single sequence.
Do I have to replace all my existing controls?
Not necessarily. Where equipment already speaks BACnet or Modbus, we integrate it as-is. Where you have pneumatic or closed proprietary controls, we retrofit to DDC selectively, so you can phase the upgrade by system or by floor rather than gutting everything at once.
Will a new BAS lock me into your company for service?
No. We build on open BACnet architecture so any qualified integrator can service and expand the system. You receive as-built documentation, the points database, and graphics — you own your system, not us.
Can a BAS help with Local Law 97 compliance?
A well-integrated BAS gives you the trend data, runtime, and consumption visibility that support energy reduction and emissions reporting under Local Law 97. While the controls themselves aren't a compliance filing, the sequences, scheduling, and analytics directly reduce energy use and document performance.
Do you support multi-building portfolios and 24/7 response?
Yes. We standardize graphics, point naming, and alarming across properties so managers get consistent visibility, and we offer remote browser access plus 24/7 emergency response for controls failures that affect occupancy.
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Ready to Put Your Building on One Open Platform?
Whether you're specifying controls for new construction, retiring pneumatic systems, or unifying equipment islands across a portfolio, Com+ Mechanical delivers an open, fully commissioned BAS your engineers can run. Talk to our controls team about a building automation assessment for your property.
Schedule a BAS Assessment