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HVAC Installations
New construction, retrofits and additions — seventeen documented projects across the five boroughs and Long Island.
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HVAC · Mechanical · Piping · Ducting
Mini-Split, VRF &
Mini-Split, VRF &
Commercial Refrigeration
Engineered for New York
JJR Mechanical designs, installs, services and maintains HVAC/R systems across the five boroughs, Long Island and northern New Jersey — from brownstone ductless retrofits to rooftop unit replacements and full walk-in cooler builds.
- Licensed, Insured & Bonded
- Professional Engineers on Staff
- Same-Day Emergency Service
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What we do
Four ways we keep New York buildings running.
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Service & Repair
Same-day emergency response for rooftop units, air handlers, chillers, ductless and VRF equipment.
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Preventive Maintenance
Scheduled service that holds rated capacity, extends equipment life and prevents the July emergency call.
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Walk-In Cooler & Freezer
Commercial refrigeration and cold storage for supermarkets, grocery stores and food facilities.
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Documented projects
5
Boroughs served
6
Major brands installed
184
Field photos on file
Capabilities
Systems we design, install and service.
Whatever the application — residential, retail, commercial, institutional, medical or industrial — the equipment has to be sized right, installed right, and serviceable ten years from now.
Ducted & Ductless Mini-Split
Our core specialty. Single-zone and multi-zone heat pump systems for homes, brownstones and light commercial space — including buildings with no route for ductwork.
- Multi-zone residential retrofits
- Concealed ducted indoor units
- Heating and cooling from one system
VRF Heat Pump Systems
Variable refrigerant flow for buildings where loads move around during the day — schools, offices, retail and mixed-use.
- Simultaneous heating and cooling
- Zone-level capacity control
- Roof-mounted condensing banks
Central Ducted, Exhaust & Fresh Air
Supply and return distribution, exhaust and outside-air systems, including the sheet metal and duct work.
- Rooftop and packaged units
- Ductwork fabrication and install
- Ventilation and make-up air
Commercial Refrigeration
Walk-in coolers and freezers, cold storage and refrigeration systems for supermarkets, grocery stores and the food industry.
- Insulated panel envelopes
- Evaporators and condensing units
- Defrost, drainage and controls
Water Heating & Cooling
Hydronic heating and cooling systems for residential, commercial and institutional buildings.
- Chillers and pumps
- Piping and distribution
- Controls and sequencing
Industrial & Process Systems
Refrigeration, cooling and heating for process areas and room comfort in industrial facilities — including infrared gas heating for high-ceiling space.
- Process cooling
- Infrared tube heating
- Room comfort in industrial space
Why JJR
Engineers on staff, not just installers.
Most of what goes wrong with an HVAC system was decided before anyone picked up a tool — equipment sized from a rule of thumb, line sets run past their limits, condensers set where nobody can service them.
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Design and engineering in house
Our staff includes professional engineers who design the systems we install. Load calculations, equipment selection and layout are done before the order goes in.
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We work with New York building stock
Brownstones with no duct chases, fire escapes crossing the only usable elevation, roofs that cannot take a load. The equipment is the easy part.
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Commissioned, not just connected
Charge, airflow, control sequences and safeties verified and documented — so the system performs the way it was designed and you have a baseline to measure against.
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Same-day emergency service
Factory-trained and certified technicians, and a service department that answers when a system goes down in August.
Selected work
Projects across the five boroughs.
Every project below is our own field documentation — the buildings, the equipment and the crews on site.
5 photos
Carrier Rooftop Unit Replacement — Syosset Office Building
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12 photos
School Building HVAC Installation — Jamaica, Queens
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11 photos
Walk-In Cooler & Freezer Installation
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10 photos
Brownstone Ductless Retrofit — Polhemus Place, Brooklyn
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9 photos
Infrared Tube Heater Installation — Brooklyn Supermarket
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4 photos
Correcting a Failed Installation — Condenser Racks
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Equipment
We install and service all major brands.
- Mitsubishi Electric
- Daikin
- Carrier
- York
- Fujitsu
- YMGI
Start your project
Tell us what your building needs.
Send drawings, a photo of your existing equipment, or just a description of the problem. We will get back to you with a clear scope and a written estimate.