


Comfort. Reliability. Innovation.

Years of HVAC Excellence in Northern NJ
Satisfied Homeowners & Businesses
5-Star Google Reviews - Local Favorite
Proudly Serving North Bergen & Bergen County Communities
When you need a reliable HVAC contractor in North Bergen, NJ, Advanced Mechanical Services delivers the expertise and customer care that local homeowners and businesses have trusted since 1985.
Our NATE-certified technicians serve North Bergen and all of Bergen County from our Ridgefield location at 350 Broad Ave.
As a family-owned company, we've completed over 1,894 installations and maintain 954+ systems with a 98% customer satisfaction rate, backed by 24/7 emergency support and flexible financing.
Choosing the right contractor means finding a partner who understands local needs and delivers quality results every time.
Since 1985, our founders Jack Mulligan and Elaine Costa have built this family-owned company on honest service. With over four decades serving Bergen County, we understand the heating and cooling challenges North Bergen properties face.
Our 10+ expert technicians are NATE-certified professionals who stay current with the latest technologies and best practices. Licensed, insured, and committed to quality installations and lasting repairs, our contractors treat your home or business with the care it deserves.
We offer 24/7 emergency service throughout North Bergen, with most installations completed in 1 to 2 days. Our contractors arrive on time, work efficiently, and always clean up after themselves because professionalism matters to us and to you.
We've earned 95+ five-star Google reviews and maintain a 98% customer satisfaction rate by consistently delivering quality work. Every member of our team is dedicated to meeting and exceeding your expectations on every job.
We've earned 95+ five-star Google reviews and maintain a 98% customer satisfaction rate by consistently delivering quality work. Every member of our team is dedicated to meeting and exceeding your expectations on every job.

We provide heating, cooling, and indoor air quality solutions tailored to your property's specific needs.

We work with all major brands and provide same-day emergency service when your cooling system fails during North Bergen's hottest days.
Central Air Conditioner Installation & Replacement
Mitsubishi Ductless AC Systems
AC Repair & Maintenance
Dual Fuel System Installation
Zone Control Systems

Protect your family's health with professional services that remove allergens, balance moisture levels, and ensure cleaner indoor air throughout your home.
Air Duct Cleaning & Testing
Air Filtration & Purification Systems
Humidifiers & Dehumidifiers
UV Germicidal Lights
Heat & Energy Recovery Ventilators
From small retail spaces to large commercial buildings, we deliver reliable, code-compliant solutions that keep your business running without interruption.
Commercial HVAC Installation & Replacement
Chiller Services for All Sizes
Preventive Maintenance Programs
Emergency Commercial Repair
Rooftop Unit Service
Building Automation Systems

All heating installations include warranties, and we specialize in Coleman® systems, the only HVAC manufacturer still assembled in the USA, backed by our 10-year parts and labor warranty.
Furnace Installation, Repair & Replacement
Boiler Services
Heat Pump Systems
Radiant Heating Systems
Ductless Heating Systems
Emergency Heating Repair
North Bergen's weather demands systems that handle hot, humid summers and cold winters efficiently.
July and August temperatures regularly reach the upper 80s and 90s with high humidity. We properly size every installation to match your home's cooling load, ensuring efficient performance during the hottest days.
January temperatures often drop into the low 20s, making your heating system critical for safety and comfort. We recommend heat pumps with backup heating for optimal efficiency, using the heat pump during mild weather and backup heat during extreme cold.
With four distinct seasons, North Bergen homes run HVAC systems heavily throughout the year. We specialize in high-efficiency systems that reduce energy consumption while maintaining comfort, helping you lower utility bills.
Proper installation ensures your system operates at rated efficiency, lasts longer, and requires fewer repairs. Our NATE-certified contractors meet all local codes and manufacturer specifications on every installation.
Recognizing warning signs early can prevent costly breakdowns and keep your home comfortable.
Your system may turn on but fail to heat or cool effectively, create uneven temperatures between rooms, or show thermostat readings that don't match actual conditions. Watch for heat pumps or AC units that freeze up in any season and furnaces or boilers that short cycle frequently.
Strange noises like grinding, squealing, or banging indicate mechanical problems, while unexpected spikes in vibration suggest worn components. Unusual smells when your system starts up or hissing sounds can signal refrigerant leaks or gas issues that need immediate attention.
Sudden increases in energy bills without changes in usage patterns often indicate your system is working harder than it should. Outdated systems over 10 years old that require frequent repairs, run constantly without maintaining temperature, or show visible rust and corrosion around equipment are costing you money.
A yellow pilot light flame instead of blue indicates dangerous carbon monoxide risk and requires immediate professional attention. Frequent circuit breaker trips, visible damage to your outdoor unit, or ice buildup on refrigerant lines signal safety concerns that shouldn't be ignored.
Don't wait for complete system failure. Our contractors provide fast, accurate diagnostics and honest repair recommendations.
Common questions about HVAC services, answered by our expert team.
A: Look for licensed, insured contractors with NATE certifications and strong customer reviews. We've served North Bergen for 40+ years with 95+ five-star Google reviews, NATE-certified technicians, and a 98% customer satisfaction rate.
A: Costs vary based on system type and size. Furnaces typically range from $3,500 to $8,000, central AC from $3,000 to $7,000. We provide free consultations with transparent estimates, plus rebates of $100 to $2,500 and flexible financing options.
A: Yes. We provide 24/7 emergency service throughout North Bergen and Bergen County. Call (201) 886-2900 anytime for immediate assistance.
A: We recommend professional maintenance twice yearly: spring AC tune-ups and fall heating inspections. Our $15.95/month maintenance plan includes annual inspection, cleaning, priority service, 15% off all services, and no overtime charges.
A: We work with all major brands including Coleman, Carrier, Trane, Lennox, Rheem, Goodman, and York. We specialize in Coleman® systems with an exclusive 10-year parts and labor warranty.
A: Yes. Modern heat pumps, especially dual-fuel systems with backup gas heating, work efficiently in North Bergen's climate. They excel during mild weather and automatically switch to gas heat during extreme cold.
Most installations are completed within 1 to 2 days. Simple replacements often finish in one day, while complete system overhauls may take two days.
Yes. We offer flexible financing options with competitive rates. We also help you access available rebates from manufacturers, utility companies, and government programs, often totaling $100 to $2,500.

Looking for a reliable HVAC company in Northern New Jersey? AMS proudly serves Paramus and the surrounding region with expert heating, cooling, indoor air quality, and energy-efficiency solutions.

15% off all HVAC services
$39 service fee waived on completed work
Annual water heater flush + battery replacement
Comprehensive home safety and priority service.
Comprehensive Priority service

We’re committed to delivering reliable, energy-efficient HVAC solutions for every space. With a focus on quality and customer satisfaction, we ensure your comfort is always our top priority.
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