Around the clock, all week

Serving all five boroughs

NY Licensed & Insured
20+ Years in NYC
24/7 Emergency

When your cooling or heating fails, we keep NYC running.

Miller HVAC Tech delivers commercial HVAC & refrigeration repair for restaurants, retail, offices and facilities across all five boroughs — fast dispatch, repairs that hold.

20+
Years experience
Restaurants
Grocery & Markets
Office Buildings
Retail Stores
Hospitals
Warehouses
Hotels
Bars & Cafés
Restaurants
Grocery & Markets
Office Buildings
Retail Stores
Hospitals
Warehouses
Hotels
Bars & Cafés
20+
Years serving NYC
About Miller HVAC Tech

Two decades keeping NYC at the right temperature.

Based in Brooklyn, Miller HVAC Tech has spent 20+ years repairing and maintaining commercial HVAC and refrigeration systems for the businesses that can’t afford to slow down — restaurants, groceries, hospitals, offices and retail across the five boroughs.

Our licensed technicians diagnose fast, fix it right the first time, and back the work with real warranties. No guesswork, no runaround — just systems that stay running.

Work With Our Team
What We Repair

Full-spectrum HVAC & refrigeration

One team for every part of your building’s climate control — from rooftop units and chillers to walk-in freezers and emergency breakdowns.

Commercial HVAC NYC

Custom design, installation, service and optimization for offices, restaurants and retail — built for efficiency and code compliance.

Commercial Refrigeration Repair

Coolers, display cases, compressors and condensers — rapid repair that protects perishable inventory and keeps you compliant.

Commercial HVAC Contractors

Licensed NYC contractors for installs, replacements and retrofits — precise work, detailed reports, minimal disruption.

HVAC Emergency Repair

Systems fail without warning. Our 24/7 crew dispatches immediately, arrives equipped, and gets you back up fast.

Commercial HVAC Maintenance

Preventative plans that catch small issues before they become expensive failures — filters, coils, refrigerant and more.

Walk-In Freezer Repair

Compressors, evaporators, thermostats — expert freezer repair engineered for speed, protecting inventory and food-safety compliance.

Our Work

On rooftops & in back-of-house across NYC

Rooftop Units
Refrigeration
Ductwork
Walk-In Freezers

HVAC or refrigeration down right now?

24/7 emergency dispatch across all five boroughs

Why Miller HVAC Tech

Built for uptime, not just repairs.

Fast, honest diagnostics

We find the real cause the first time and explain it in plain terms — before any work starts.

Warranty-backed workmanship

Quality parts and repairs designed to extend equipment life, backed by our satisfaction guarantee.

Minimal downtime

Rapid dispatch and fully-stocked trucks mean less waiting and less lost revenue for your business.

Live coverage

Commercial HVAC Repair

≤ 2 hours

Commercial Refrigeration Repair

≤ 3 hours

HVAC Emergency Repair

Immediate dispatch

Commercial HVAC Maintenance

Scheduled

Walk-In Freezer Repair

≤ 2 hours

Maintenance Program

A plan built around your building.

“One size fits all” doesn’t protect commercial equipment. We design a preventative plan around your specific systems, hours and risk — so small issues get caught long before they become emergencies.

Preventative Maintenance Plan

Scheduled inspections, cleaning and component testing to keep systems efficient year-round.

Comprehensive Coverage Plan

Priority response, discounted repairs and full-system care for higher-stakes facilities.

See Plan Details
Client Reviews

Businesses that stay with us for life

Our walk-in went down on a Friday night and Miller had a tech on-site within the hour. They saved a full weekend of inventory — we won't call anyone else.
Sergio B.Restaurant Owner · Brooklyn
We've used Miller HVAC Tech across several properties for years. Always professional, always honest about what actually needs fixing.
Katia S.Property Manager · Manhattan
Their technicians are knowledgeable, prompt, and clear about pricing up front. The rooftop units on our building have never run better.
Cathy M.Facilities Director · Queens
Service Areas

Proudly serving all five boroughs

From our Brooklyn base, we cover commercial HVAC and refrigeration across New York City — on call 24/7 wherever you are.

Manhattan
Brooklyn
Queens
The Bronx
Staten Island
Williamsburg
Long Island City
Downtown Brooklyn
Midtown
Harlem
Astoria
Flushing
Check Your Location
From the Blog

HVAC & refrigeration insights

Maintenance
Aug 4, 2026

5 signs your rooftop unit needs service now

Catch the early warnings that separate a quick fix from a costly weekend emergency.

Read more
Refrigeration
Jul 22, 2026

What to do the moment a freezer fails

A simple response plan that can save thousands in perishable stock before help arrives.

Read more
Energy
Jul 9, 2026

How maintenance lowers your NYC energy bills

Small, scheduled tune-ups add up to real savings on operating costs over a year.

Read more
Contact Miller HVAC Tech

Get a free quote today

Request service or a free estimate

Tell us what’s going on and a Miller technician will respond promptly with a plan and pricing. Emergencies? Call — we’re available around the clock.

Call 24/7
347-579-3882
Email
miller@millershvactech.com
Visit

963 E 78th St, Brooklyn, NY

We’ll get back to you fast — usually within 15 minutes during business hours.