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Licensed & Insured Since 1988

Expert PlumbingHeating Solutions

Installations and Design
Residential & Commercial Gas Boiler Installation
NSS Certified Navien Specialists

Serving Nassau, Suffolk & NYC with professional plumbing repair, installation, and heating services.

Get Free Estimate View Our Services

24-Hour Response Time

35+ Years

Experience

NSS Certified

Navien Specialists

We’re An Authorized NSS Navien Dealer & Installer

Our staff is trained by Navien for sales, installation and service all types of repairs and diagnose of their products in addition to Bosch installations. For more info call 631.361.9500 or complete the form below.

Plumbing Repair, Service & Installations

Schedule an appointment today for you’re a complete survey on how tankless water heaters can save you money and space, have endless amount of hot water. For more info call 631.361.9500 or complete the form below.

NSS certified by Navien, Inc.

Residential installation

Large commercial installation, removed large oil-fired boiler, install new gas service with 4 new Navien's cascading on domestic hot water.

Contractors’ winner of the 1st contractors round table in California sponsored by Navion

Episode 2 winner of Show Us Your Pipe by Centrotherm

5★

Excellent Service

5000+ Happy Customers

Home Improvement Financing Available

Our Services

Complete Plumbing & Heating Solutions

From routine maintenance to emergency repairs, we provide comprehensive services for all your plumbing and heating needs.

Plumbing Repair

Expert leak detection, pipe repair, and drain cleaning services for residential and commercial properties.

Heating Systems

Boiler installation, furnace repair, and complete heating system maintenance to keep you warm.

Tankless Water Heaters

Energy-efficient tankless water heater installation with endless hot water and space savings.

Gas Conversion

Professional gas line installation and conversion services.

Emergency Services

24-hour response time on plumbing and heating repairs. We're here when you need us most.

Maintenance Plans

Preventive maintenance programs to extend equipment life and prevent costly repairs.

About Us

Trusted by New Yorkers Since 1988

Big City Plumbing & Heating has been providing reliable, professional plumbing and heating services to homes and businesses across New York for over three decades. Our certified technicians are trained to handle everything from minor repairs to complete system installations.

Licensed & Insured Professionals

Authorized Navien Dealer & Installer

National Grid & Con Ed Rebates

Residential & Commercial Services

Free Estimates Available

Serving Nassau, Suffolk & NYC

35+

Years Experience

5000+

Projects Completed

24-Hour

Response Time

100%

Satisfaction Rate

Customer Reviews

What Our Customers Say

Don't just take our word for it - hear from homeowners and businesses who trust Big City Plumbing & Heating.

"My Navien Heat Exchanger was about to breach. Big City Plumbing diagnosed the issue quickly and saved me from costly repairs. Their Navien expertise is unmatched!"

Judy M.

Long Island, NY

"Professional, punctual, and fair pricing. They converted our home to gas and helped us get the Con Ed rebate. Highly recommend for any plumbing or heating work."

Robert K.

Queens, NY

"Had an emergency leak at 2 AM. They answered immediately and had someone at my house within an hour. True 24/7 response when you need it most."

Maria S.

Nassau County, NY

See Other Customer Reviews of Our Excellent Service

Certifications