Boiler Installation & Repair Services

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Residential Boiler Installation & Repair

Experience reliable heating solutions with MJK Mechanical’s specialized residential boiler installation and repair services. When faced with heating issues, opting for boiler repair is often the simplest and most cost-effective way to reinstate warmth to your space. This is especially true if your boiler is a recent model and a replacement might not be necessary. To ensure your boiler’s continued efficiency, an annual servicing is recommended. We reccomend that you plan ahead and schedule your boiler service during periods when heating specialists are more readily available. Ideally, the post-heating season, in spring or early summer, is the optimal time for boiler servicing. However, MJK Mechanical takes pride in offering emergency services for those in critical situations. Our skilled specialists are equipped with the expertise to guide you through different options that align with your residential needs. 

Sectional Commercial Boiler Installation & Repair

The longevity of sectional commercial boilers can be challenged by factors such as thermal shock, pressure fluctuations, and the passage of time. The effects of age often manifest in cracks and structural weaknesses, contributing to the breakdown of these crucial heating components. Years of operation expose these boilers to rust and corrosion, gradually eroding key parts, pipelines, and even connections. Thermal shock, caused by rapid temperature changes, subjects cast iron to excessive stress and pressure, exacerbating the potential for cracks and damage. When your sectional commercial boiler succumbs to these challenges, the solution is often a replacement to swiftly restore heat and functionality.

Call Today For a Free Quote on Your Repair or Installation!

AC Replacement & Installation
We recommend an AC replacement if your Air Conditioner is more than 10 years old or if you believe you are paying more than you should for monthly electric bills. Today’s AC units are much more efficient than ones of the past
AC Unit Repair
  • Unit Fan hums without turning on
    Water is leaking from the unit
    Unit is not getting power
    The Evaporator coil is freezing
AC Maintenance Plan
Better Temperature Control – New AC units offer more accurate control on a room by room basis. Greater Efficiency – Save on electric bills Noiseless – Modern AC units are much quieter than older models
Heater Installation Services in PA - MJK Mechancial
For instances where a new sectional commercial boiler is necessary, rest assured that MJK Mechanical has you covered. Our team of seasoned professionals is ready to provide transparent assistance in selecting the ideal options to suit your commercial space’s needs. Making an informed purchase decision is pivotal, and we are dedicated to ensuring complete clarity throughout the process. Once your choice is made, our adept team takes charge of the installation, ensuring your new sectional commercial boiler integrates seamlessly and functions optimally. At MJK Mechanical, we understand that a well-operating heating system is essential for the smooth functioning of your commercial space. Whether it’s repair, replacement, or guidance in selecting the right solution, we are committed to delivering unparalleled expertise and service excellence. Contact us today to take the first step towards securing the reliable heating performance your commercial establishment needs. Your comfort and productivity are our top priorities, and we’re here to bring them to fruition.

Fully Insured & Licensed

Local • Professional Experience • Flexible Scheduling
PA: PA046826 – NJ: #19HC00936400 – DE: HM-0011246

Air Conditioning Services

Heating Services

Plumbing Services

Keep your system running smoothly with our maintenance plans

Why MJK Mechanical is Your Partner For AC, Heating, and Plumbing Solutions

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Our Reviews

Hill's Quality Seafood Markets
Hill's Quality Seafood Markets
Many thanks to Jason and his MJK team for their great service! MJK came highly recommended from a trusted contractor, and we couldn't be happier with their service. After an emergency call, Jason was on site within 24 hours and had our air conditioning back up and running in no time after an electrical issue. Jason was incredibly knowledgeable, despite never working on our units, and we appreciated his patience in explaining with great detail exactly what went wrong and his plan to fix it. Professional, honest, and left the job site in pristine condition after getting our units fired back up. Sincerely looking forward to working with Jason and the MJK team in the future as our trusted HVAC contractor.
Michael Sprague
Michael Sprague
Had some issues with my AC condenser recently and called a few contractors. By far the most responsive was MJK Mechanical. Even better, when they arrived they were professional, courteous and quick! AC was up and humming in no time for a very fair price as well. Great people to work with and would recommend them to anyone.
Janeen Levy
Janeen Levy
Needed a wired “communicating” thermostat changed. I was able to get a quick appt and Jason completed the job quickly and efficiently I didn’t feel pressured to be upsold or anything - which was an added plus and unlike others. Would highly recommend
James Pass
James Pass
Jason was very professional and knowledgeable
Corey Gunter
Corey Gunter
AC went out and I filled out an online request form. Jason was very prompt in responding and very thorough with answering my questions. Appointment was scheduled, Jason was on time and very quick to determine the issue and resolve it.
Doug Willmott
Doug Willmott
If you are looking for a high quality HVAC company that you can trust to get the job done professionally and at a fair price, look no further than MJK. Jason was very professional and efficient in getting our AC back up and running quickly. If you need HVAC services, don’t hesitate to give Jason a call today.
Robert Higgins
Robert Higgins
Jason at MJK Mechanical is an outstanding HVAC supplier . His responsiveness is great and his skills at diagnosing what needs to be repair is excellent . Other people in our condo building have used Jason for their AC needs with excellent feedback and results !!!!!
Steven Jefferis
Steven Jefferis
Great prices and professional service. They were in & out, my place was spotless. The Central Air never worked so well.
Ryan Estrada
Ryan Estrada
Quick turnaround and our AC is up and running. Will contact again.
Amanda Carbonara
Amanda Carbonara
They did great work and for a great price! I would definitely use them again!!



We are a full-service HVAC and Mechanical contractor serving Delaware, southeast Pennsylvania, and central and south New Jersey. We offer heating and air conditioning, HVAC repair, and installations for residential and commercial customers. 


Our expertise covers all aspects of HVAC and Mechanical repairs and installations, including heat pumps, ductless mini-splits, air handlers, furnaces, boilers, central air conditioning, condensing units, and more.



What types of boilers does MJK Mechanical install and repair?

MJK Mechanical specializes in residential and commercial boilers, including hydronic and steam heating systems.

How do I know if I need to repair or replace my boiler?

Signs such as cracks, operational inconsistency, or increased operational costs may indicate the need for repair or replacement. Contact MJK Mechanical for an assessment.

When is the best time to service my boiler?

Ideally, servicing should be done in spring or early summer after the heating season. However, MJK Mechanical also offers emergency services year-round.

Does MJK Mechanical offer emergency boiler services?

Yes, MJK Mechanical provides emergency services for urgent boiler repair needs.

How can I get a free estimate for boiler services?

You can request a free estimate by filling out the form on their website, which may include uploading pictures or videos of the boiler.

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