Call Us:
(609) 351-1335

7 Days a week - 24 Hours a day

The Boiler Experts You've Trusted For Over
30 Years

Welcome to
DZ Boiler and Mechanical Services!

DZ Boiler and Mechanical Services has more than 30 years experience in the industrial and commercial boiler and burner service repair. Specializing in the repair, replacement, and troubleshooting of Cleaver Brooks, Fulton, RayPak, Columbia Boilers, as well as all other manufacturers. We are experts in replacing and repairing auxiliary boiler room equipment and piping. We offer maintenance and repair solutions you can count on for years to come, without the damage, hassles and mess of traditional boiler replacement. We investigate, diagnose and implement solutions that work the first time, every time, with minimum down time, destruction and inconvenience.

  1. Industrial

    Because few things cost industry more than downtime, 24-hour emergency service is our specialty! DZ Boiler and Mechanical Services provides experienced service technicians, state-of-the-art equipment and the know-how to fix your problem fast, so your business is back to normal as quickly as possible.

  2. Commercial

    DZ Boiler and Mechanical Services can handle any emergency or routine maintenance at your business. We are professionals trained to fix everything from leaky boilers, replacing a boiler, and all boiler room auxiliary equipment. And, we'll service one location or tailor a program for multiple locations.

Featured Services

A properly functioning boiler system is vital to any business. In short, it is key to maintaining the health and cleanliness of your building and its occupants. Call or Email us 24/7.

We have been solving the boiler needs of clients all over New Jersey, Delaware, and Pennsylvania for over 30 years, and keep up-to-date with ongoing training and certifications. Call DZ Boiler and Mechanical Services to scheduled service or for same-day service. Your satisfaction is guaranteed when you choose DZ Boiler Services for the job!

Specialized Boiler Services

Boiler and Burner Service

Troubleshooting controls and fail-safe checks, tube replacement, fire chamber repairs, external sheet metal casing and insulation replacement.

Boiler Equipment

D.A. tanks, atmospheric boiler feed tanks, condensate tanks, boiler and system pumps with controls, stack economizers and boiler chemical feed systems.

Design and build portable boilers

Complete layout and custom design for low and high pressure steam or hot water boilers.


Boiler reconditioning

Complete disassembly, re-tube or repair watersides, replace refractory, repair inner doors and panels, replace external sheet metal casing with insulation, replace or repair all piping, low water cut off controls, blower motor and all operating controls, repaint with O.E.M colors.

New and Used Boiler sales

We work with all boiler manufacturers on new boiler sales to supply new installations, replace or upgrade existing boilers.

Boiler installation and maintenance

Remove and replace existing boilers, open boilers for annual or yearly inspections, replace all water and fireside gaskets, make all repairs before closing boiler, fire boiler and set combustion with analyzer for correct emissions. Complete layout and custom design for low and high pressure steam or hot water boilers.


Start up Service

Check all utilities for correct pressures and controls, boil out waterside of boiler to remove manufacturer protective oil film, check all fail-safes and operation, set combustion according to manufacturers specified guidelines.

Combustion and stack emission testing

Semi-annual or yearly check and adjust boiler burner system combustion with analyzer for maximum efficiency.

Process piping

All phases of steel, copper, PVC and CPVC piping valves and fittings.



Refractory repair or replacement

Dutch oven and liner brickwork, rear and front inner doors, panels, rear chambers, floor and wall brickwork.

Valve and pump repair

Boiler and header stop and gate valves, safety relief valves, mixing and diverting valves, feed, circulating and condensate pump replacement and repair.

Call or Email us 24/7

A properly functioning boiler system is vital to any business.

What People Say

“Had my CT50 installed six years ago. I use DZ Boiler & Mechanical Service. Inc. for all of the service and maintenance. He uses quality piping which lasts much longer than the original pipes.”
Robert Lehrich
Shima Seiki USA
“I've used Mr. Zoeller for 30 years. He takes pride in his work and it always shows in the results. We outsource a lot of work to Mr. Zoeller and have confidence that the work will get done in a professional manner and on time. ”
Joseph Frank
National Power Equipment Co., Inc.
"We have used DZ Boiler for a couple of our major projects, from installing a reconditioned boiler to running high pressure steam lines to our jacketed mixing tank. Dave has always been professional, getting the projects done right the first time. Even the town inspectors were impressed with Dave's work. I highly recommend DZ Boiler for any of your small or major jobs!"
Joe Fazio
General Manager, Baker Titan Adhesives


"After a year and 1/2 of uses, Mr. Zoeller has serviced and maintained my boiler. When I run into any problems. Mr. Zoeller answers his phone and shows up to my job the same day. I have confidence and much respect for him. I have been through several contractors throughout my years, but I am glad I found D&Z Boiler and Maintenance Service."
Mr. Edward B. Mincey
Facility Manager - The Titusville Academy
" After a year of use, your service has stood the test of time. I love it and would urge anyone in a similar situation to give it a try."