MJK Mechanical Air Conditioning & HVAC Services

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MJK Mechanical Air Conditioning & HVAC Services

At MJK Mechanical, our team of highly skilled technicians is dedicated to addressing all your air conditioning needs with precision and expertise. We understand the frustration of a home or business that isn’t cooling as desired, which is why we offer a comprehensive array of services to cater to every situation. Whether it’s a malfunctioning unit, a need for an upgrade, or routine maintenance, we’ve got you covered. MJK Mechanical is your trusted partner in maintaining a cool and comfortable environment for your home or business.

Air Conditioner Installations

At MJK Mechanical, our commitment to excellence is evident in every air conditioner installation we undertake. Our experienced technicians handle the entire process with precision, from evaluating your space and recommending the ideal unit to ensuring a seamless integration that maximizes efficiency and comfort. We understand that a proper installation is crucial for the long-term performance of your AC system, and we take pride in delivering installations that stand the test of time. With MJK Mechanical, you can trust that your new air conditioner will provide the cooling relief you deserve.

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

Air Conditioner Repair

When your air conditioner falters, MJK Mechanical’s air conditioner repair service is here to help. Our skilled technicians possess the expertise to diagnose a wide range of AC issues accurately. We don’t just address the symptoms; we identify the root cause to implement lasting solutions that prevent future breakdowns. From malfunctioning components to inadequate cooling, our AC repair service restores your system’s functionality, ensuring efficient operation and peace of mind.
Geothermal HVAC Services
Heater Installation Services in PA - MJK Mechancial

Air Conditioner Maintenance

Preventive care is key to maintaining the longevity and efficiency of your air conditioning system, and MJK Mechanical’s air conditioner maintenance service is designed to do just that. Our technicians perform comprehensive inspections, fine-tuning, and cleaning to ensure that your AC system operates at its best. Regular maintenance not only extends the lifespan of your unit but also helps it perform optimally, keeping energy costs in check and preventing unexpected breakdowns. With our meticulous approach, you can rely on us to keep your AC system running smoothly year after year.

Air Conditioner Replacement

When the time comes for an upgrade, MJK Mechanical’s air conditioner replacement service offers a variety of options to suit your cooling needs and preferences. Our experienced technicians assess your current system, consider your requirements, and recommend suitable replacements that align with your budget. Whether you’re seeking enhanced energy efficiency, improved cooling capacity, or advanced features, we guide you through the selection process to find the perfect replacement. With our seamless installation, you can enjoy a new level of indoor comfort and convenience, backed by MJK Mechanical’s commitment to quality craftsmanship.

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.


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