Air Conditioning Installation & HVAC Services

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Air Conditioner Maintenance Services

MJK Mechanical takes pride in delivering an unparalleled level of expertise through its Air Conditioner installation service. Our commitment to excellence shines through whether you’re seeking a comprehensive central air unit, a cutting-edge ductless mini split for retrofitted spaces, or a tailored solution to meet unique requirements. Our versatile offerings ensure that MJK Mechanical is the definitive choice for all your air conditioning needs.
Navigating the array of cooling options can be overwhelming, which is why MJK Mechanical goes the extra mile to guide you through the process. If you’re uncertain about the most suitable product to fulfill your air conditioning needs, rest assured that our team of highly trained technicians will visit your residence. They will conduct a meticulous assessment of your existing setup, considering factors like layout, insulation, and usage patterns. With their deep expertise, they’ll provide you with personalized recommendations that align with both your preferences and practical requirements.

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
At MJK Mechanical, transparency and integrity are the cornerstones of our approach. Whether you’re in the market for a brand-new unit or your current system simply requires maintenance, we prioritize open and honest communication. If a new installation is necessary, our team will explain the rationale behind their recommendation, ensuring you have a comprehensive understanding of the situation. Likewise, if maintenance or repairs are feasible alternatives, you can trust our technicians to provide a balanced assessment of the situation, allowing you to make an informed decision that aligns with your budget and needs.
Geothermal HVAC Services

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

Trusted by the best

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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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