About Us

Reliable Plumbing - HVAC Services in Mountainside, NJ

At In-Line Plumbing and Heating, LLC, we’re proud to serve Mountainside, NJ, and the surrounding areas of Union, Morris, and Somerset counties with reliable ...

Excellence in Plumbing, Heating, and Cooling Solutions

We believe that true professionalism and unwavering commitment set us apart. Our team operates with integrity and respect, bringing extensive knowledge and e...

Built on Decades of Experience and Dedication

Our company was founded on years of hands-on experience in the plumbing and HVAC industry, rooted in a dedication to quality work and reliable service. With ...

Plumbing

Bathroom Upgrades - Remodels

Water Conditioning

A/C Service

Heating

Generator Installation

Water Heaters

Testimonials

Reviews

Pete C

I wouldn't use anyone but Stan- he's professional, reliable, courteous, and brilliant- he fixed a major problem that others, for years, could not-... Read more

Jun 19, 2025

Kranti Pally

In-Line Plumbing are our go-to guys for all our plumbing needs. Been using them for years. Stan and his team are awesome: on-time, always friendly,... Read more

Jun 9, 2025

+ Add review All reviews...