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I am environmental inspector for more than 18 years and over the past two years have had the opportunity to inspect at least 1/2 dozen properties scheduled for major renovations in Philadelphia by Shamrock Developers. They have completed each project in a timely fashion, successfully transforming these run down, neglected properties into a finished product that is hard to believe after witnessing the "before". As a past kitchen designer, I can really appreciate their quality of work and craftsmanship and would recommend them to anyone considering a remodel.

Bruce Lichtenstein Atlantic Lead Consultants, Inc.

Hiring Mahon Builders to construct our dream home was one of the best decisions our family has made. This was the third house we had built, and believe me, it was the smoothest experience thus far. From the beginning of the process, Joe studied our building plans and pointed out potential problems or concerns; furthermore, he made suggestions to correct or improve the layout of the home. Because it included a large in-law-suite, the house was quite unique and challenging; however, Kathy Mahon patiently worked with my wife and daughter to ensure that both interests and decor expectations were achieved. Joe was always at the site ensuring that his workers were meeting his high expectations. By far, it was the cleanest construction site I have ever visited. When we visited the site, Joe was more than willing to update us on the progress and pleasantly accept feedback. The quality workmanship and attention to even the smallest detail made all the difference. It has been five years since our home has been built, and we are still very happy with our decision to hire Mahon Builders.

The Capriotti and Pazdunkiewicz Family

As past Director of the Neighborhood Stabilization Program I worked with Mahon Builders, a contractor renovating single-family homes in Philadelphia. They consistently completed homes on time, within budget and with integrity. When it came time to renovate my own out-dated kitchen, Mahon Builders immediately came to mind. As a homeowner, Mahon Builders exceeded my expectations. Their level of professionalism, problem-solving ability and craftmanship were exceptional. Construction went smoothly and although we were living without a functioning kitchen during renovation, the disruption to our daily lives was minimal and stress free. We are simply thrilled with our new kitchen. Mahon Builders was a joy to work with and I would highly recommend them for any job, big or small.


Dana Hanchin


Mahon Builders was a great partner. They built us our dream home for our large family with great execution. The creaftmanship and details in the home are excellent and it is because Joe & Kathy are experienced and care about the homes they build. The process of building a home can be overwhelming, but they always helped, adding great reccomendations and thoughts along the way. The quality of the work they delivered was excellent and they often went above and beyond what they were required to do in order to give us a great home and make the process go smoothly.  All this was done despite the worst winter on record that created some really hard working conditions. They were great about asking questions before certain things were completed to make sure we understood what the outcome would look like and that our expectations were met. They also worked with us on using some materials that we brought in to add the final touches to our home. We have been in our home for about 4 months now, and it is more that we ever expected it to be thanks to the great work by Joe & Kathy.

Dan & Melanie S.


We hired Mahon Builders to take on a complex project in Philadelphia which involved subdivision of a lot & existing structure and subsequent new construction of a semi-detached 3 story townhome. From the very beginning the layout of the house was constantly evolving and fine tuned right up to the start of construction. Kathy & Joe were flexible and adapted to the changes in the project scope and design seamlessly as we went through the process ranging from the neighborhood association meeting to zoning to the building permit which took nearly one year. Also there was an incredible amount of customization to our home as we ended up purchasing a rather large amout of fixutres and other materials on our own. Kathy worked with us diligently to ensure each item was exactly what we wanted and kept us well informed along the way. Also, living next door to the construction site resulted in a large amount of daily communication as we were there to see progress daily. Our concerns were always addressed in a timely manner and professionally. Given the incredible amount of effort put into this project over the course of nearly a year and a half, we are extremely happy with our decision to hire Mahon Builders. They went the extra mile to make our home a success.

Tony & Beth K.