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Commercial HVAC Built for NYC Real Estate Portfolios
Com+ Mechanical keeps office towers, retail, and mixed-use buildings comfortable, compliant, and leasable across the five boroughs, Nassau, Westchester, northern New Jersey, and Stamford. We serve owners, landlords, and REITs who can't afford tenant complaints, lease-renewal risk, or surprise capital failures. One vendor for maintenance, retrofits, and 24/7 emergency response across your whole portfolio.
HVAC Challenges in Commercial Real Estate
Tenant comfort complaints driving lease-renewal risk
Hot and cold calls from tenants are the number-one HVAC headache for landlords. Uneven floors, perimeter zones that overheat, and conference rooms that never cool reflect poorly on building management and surface during renewal negotiations. The root cause is usually aging VAV controls, unbalanced air distribution, or RTUs that no longer meet the load — all fixable, but only if someone is actually diagnosing them instead of just resetting the thermostat.
Aging rooftop and central plant equipment past useful life
Much of NYC's commercial building stock runs RTUs, chillers, and cooling towers that are 15 to 25-plus years old. Owners often don't know which units are on borrowed time until one fails mid-summer. Without a condition assessment and capital plan, you're exposed to emergency replacements at premium pricing and weeks of tenant disruption.
Local Law 97 emissions penalties looming
Buildings over 25,000 square feet face escalating carbon caps, with stiffer limits and financial penalties phasing in through 2030 and beyond. HVAC is typically the largest controllable driver of a building's emissions. Owners need a realistic path — efficiency retrofits, controls optimization, and eventual electrification — that protects the asset without over-spending ahead of the curve.
No single accountable vendor across a portfolio
Owners and REITs with multiple buildings often juggle a different mechanical contractor at each property, with no consistent reporting, no standardized PM schedule, and no one who knows the whole portfolio. That fragmentation means missed maintenance, inconsistent compliance documentation, and finger-pointing when something breaks.
Deferred maintenance hiding in the BMS
Building management systems are powerful, but in many buildings they've drifted out of calibration — overridden setpoints, failed sensors, economizers stuck closed, and alarms nobody monitors. The result is wasted energy, premature equipment wear, and comfort problems that look like equipment failures but are really controls neglect.
Emergency failures with slow or no response
When a chiller trips during a heat advisory or a leak threatens a tenant's ceiling, the clock is running on both comfort and liability. Landlords without a real after-hours service relationship end up calling whoever answers, paying emergency premiums, and waiting hours while tenants escalate.
HVAC That Protects NOI, Tenants, and Asset Value
For commercial real estate owners, HVAC isn't a line item — it's tied directly to tenant retention, lease economics, energy spend, and building valuation. A failed chiller in July or an unresponsive landlord during a heat advisory can put a renewal at risk; a poorly managed mechanical system can quietly erode net operating income year after year. Com+ Mechanical works the way property owners, asset managers, and REIT operations teams need us to: predictable preventive maintenance that keeps base-building and tenant systems running, capital planning that lets you budget equipment replacement instead of being surprised by it, and emergency response that gets a tech on the roof before a complaint becomes a lease problem. We service the mix of equipment NYC commercial buildings actually run — packaged rooftop units, water- and air-cooled chillers, cooling towers, VAV and fan-coil systems, water-source heat pump loops, and the building management systems that tie them together. And we work within the compliance reality of NYC: Local Law 97 emissions caps, Local Law 87 energy audits and retro-commissioning, refrigerant phase-downs, and ventilation codes that govern occupied commercial space.
HVAC Services We Provide for Commercial Real Estate
Why NYC Commercial Property Owners Choose Com+
Our Simple Process
From call to comfort in 4 easy steps
Building and Portfolio Assessment
We walk your roof, mechanical rooms, and tenant spaces to inventory equipment, age, condition, and BMS status. For multi-building owners, we standardize this across the portfolio so you get a single, comparable picture of risk and remaining useful life.
Maintenance and Capital Plan
We deliver a tailored preventive maintenance scope plus a prioritized capital roadmap — what needs attention now, what to budget for next year, and how compliance deadlines like Local Law 97 fit into the timeline. You get a plan ownership and asset management can sign off on.
Service Execution
We run scheduled PM, handle repairs and retrofits, support tenant fit-outs, and respond to emergencies — coordinating with property management and tenants to minimize disruption to occupied space and building operations.
Reporting and Review
After every visit you get clear documentation of what was done, what we found, and what's coming. We review portfolio performance, compliance status, and capital priorities with your team on a cadence that fits your reporting cycle.
Types of Systems We Install
Packaged Rooftop Units (RTUs)
Common on low- and mid-rise commercial, retail, and mixed-use buildings, RTUs deliver heating and cooling from the roof and are often the workhorses of NYC's commercial stock. They're also frequently the oldest and most overlooked equipment on a property.
- •Packaged heating and cooling in a single rooftop unit
- •Economizers for free-cooling and ventilation compliance
- •Common across retail and mid-rise office buildings
- •Prime candidates for high-efficiency replacement and Local Law 97 savings
Central Chilled-Water Plants
Larger office towers and Class A buildings typically run central plants with air- or water-cooled chillers, cooling towers, and pumps distributing chilled water to air handlers and fan-coils throughout the building. These are high-stakes systems where a single failure can affect an entire tower.
- •Air-cooled or water-cooled chillers with cooling towers
- •Chilled-water distribution to AHUs and fan-coil units
- •High cooling capacity for large floor plates
- •Major driver of building energy use and emissions
VAV and Water-Source Heat Pump Systems
Tenant comfort in commercial buildings is usually managed through variable-air-volume (VAV) distribution or water-source heat pump loops, tied into the building management system for zoning and control. These systems make or break the tenant experience floor by floor.
- •Zoned VAV boxes or water-source heat pumps per tenant area
- •BMS and DDC controls for scheduling and setpoints
- •Direct impact on tenant comfort and complaint volume
- •Optimization opportunities to cut energy and improve comfort
Why Com+ Mechanical
Commercial-Only Focus
We work on commercial and institutional buildings, not homes. Your account is handled by people who understand RTUs, central plants, BMS, tenant leases, and how a mechanical decision affects NOI — not residential furnace swaps.
NYC Metro Coverage
From Manhattan high-rises to retail and mixed-use across Brooklyn, Queens, the Bronx, Staten Island, Nassau, Westchester, northern New Jersey, and Stamford, we cover the region your portfolio actually spans.
Compliance-Aware
We keep your buildings aligned with NYC's evolving mandates — Local Law 97 emissions caps, Local Law 87 energy audits and retro-commissioning, ventilation codes, and refrigerant regulations — so compliance is planned, not a fire drill.
Single Point of Accountability
One contractor, one team, consistent reporting across every property. When something needs attention, you know exactly who to call and we already know your buildings.
Transparent Pricing
No fees. No surprises. Just honest service.
Preventive Maintenance Agreement
Scheduled maintenance for base-building and tenant HVAC across one building or your whole portfolio — the foundation for fewer complaints, longer equipment life, and compliance documentation.
- Tailored PM schedule for RTUs, chillers, towers, boilers, and controls
- Priority scheduling and response for agreement customers
- Filter, belt, coil, and refrigerant service
- BMS and controls checks to catch drift before it costs you
- Documented reporting after every visit
- Portfolio-wide standardization for multi-building owners
Repairs & Retrofits / Capital Projects
Equipment replacement, efficiency retrofits, tenant fit-outs, controls upgrades, and Local Law 97 / Local Law 87 capital work — planned and budgeted, or executed on demand.
- RTU, chiller, tower, and boiler replacement
- BMS and DDC controls upgrades and integration
- Tenant build-out and supplemental cooling
- Energy-efficiency and electrification retrofits
- Capital planning and equipment-replacement budgeting
- Compliance-driven retro-commissioning support
24/7 Emergency Service
After-hours and weekend response for no-cooling, no-heat, and water-leak events that put tenants, occupancy, and liability at risk.
- 24/7 availability for HVAC emergencies
- No-cool / no-heat triage and stabilization
- Leak and water-damage mitigation coordination
- Priority dispatch for maintenance-agreement customers
- Coordination with property management and tenants
- Follow-up repair and root-cause resolution
All pricing is provided as a custom quote following a building or portfolio assessment, scoped to your equipment, square footage, and service requirements.
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
Can Com+ service multiple buildings across our portfolio?
Yes. We're built for owners, landlords, and REITs with multiple properties. We standardize preventive maintenance, reporting, and compliance documentation across your portfolio so you get one accountable vendor and a consistent, comparable view of every building — from Manhattan to Nassau, Westchester, northern New Jersey, and Stamford.
What is your response time for emergencies?
We offer 24/7 emergency service for no-cooling, no-heat, and water-leak events, with priority dispatch for buildings on a maintenance agreement.
How do you help with Local Law 97 compliance?
HVAC is usually the largest controllable driver of a building's carbon emissions, so it's central to Local Law 97 strategy. We assess your equipment and controls, identify efficiency retrofits and electrification opportunities, and help you build a phased plan that fits the compliance timeline without over-spending ahead of the deadlines.
Do you service both base-building and tenant HVAC?
Yes. We maintain and repair base-building systems — central plants, rooftop units, cooling towers, and the BMS — as well as tenant-side equipment like VAV boxes, fan-coils, and supplemental cooling. We also handle tenant fit-outs and build-outs, coordinating with property management to minimize disruption to occupied space.
Can you take over maintenance from our current contractor?
Yes. We start with an assessment of your equipment and its current condition, document what we find, and transition you onto a structured maintenance program. For multi-building owners, we can phase the transition building by building so there's no gap in coverage or compliance documentation.
What types of buildings do you typically work on?
Commercial office buildings and towers, retail, and mixed-use properties across the NYC metro. We focus on commercial and institutional real estate — the rooftop units, chillers, cooling towers, water-source heat pump loops, and building management systems that this building stock runs.
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Protect Your Buildings, Your Tenants, and Your NOI
Whether you own one building or manage a portfolio across the NYC metro, Com+ Mechanical gives you a single accountable HVAC partner for maintenance, capital projects, compliance, and 24/7 emergencies. Start with a building or portfolio assessment and get a clear plan for reliability, compliance, and budget.
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