Featured Products – Preferred Contracting Services LLC

Quality Hardware and Attention to Detail
At Preferred Contracting Services, we take pride in using only top quality products wherever possible, even down to the very last detail. This is why we use ring-shank coil nails, for instance. Ring-shanks have 50% to 100% stronger holding capacity than do standard smooth-shank nails. Our quality products and attention to detail are how we’ve earned our status as one of the leading contractor’s based out of southwestern PA.

We proudly sell and install only top quality products with proven quality reputations and unmatched warranties. Take a look below at some of our featured products that we can install on your home, adding protection, beauty, and value.

Gutter ProTech®
https://gutterprotech.net/

Imagine never having to clean your gutters again! Gutter ProTech® is a simple and affordable solution to clogged gutters. Gutter ProTech’s® exclusive technology covers your gutters to prevent leaves and debris from entering, yet still permits water to enter as well.

Unified Steel by Westlake
https://www.westlakeroyalbuildingproducts.com/roofing/unified-steel

Metal roofing is here! There are many styles of metal roofing from which to choose, and a wide variety of beautiful colors are available. These roofs are the longest lasting on the market, and they look great!

We are proud to install top quality shingle products from Unified Steel.

Greenstone Slate
https://greenstoneslate.com/
The Greenstone Slate Company has been a leader in crafting Vermont roofing slate for well over half a century and has shipped slate all over the world for residential and institutional projects. Our quarries are located in the heart of what is known as the Slate Valley— a region primarily in Vermont, extending slightly into New York State.

Titanium-UDL™ Synthetic Roofing Underlayment
www.interwrap.com/titanium

Titanium-UDL™ is a synthetic roofing underlayment that is of unmatched strength and quality. Titanium-UDL™ boasts a variety of features that make it our product of choice for all of our quality roofs. It is 100% asphalt free, 6 times lighter, and 20 times stronger than standard felt paper. It’s no wonder this product comes with a 25-year limited warranty.

Mastic Metal Products (Gutter)
https://www.plygem.com/mastic/

Mastic gutters and downspouts have become the standard in the industry. Their beautiful style, rugged durability, and overall effectiveness are the reasons these Rain Removal Systems have maintained their reputation of quality for over 30 years. At Preferred Contracting Services, we specialize in the installation of quality metal products.

Why Us?

Preferred Contracting Services LLC is an licensed and successful business that’s been serving the tri-state area (and beyond!) since 1978. Our unmatched experience ensures that we’ll not only work efficiently, but that we’ll always get the job done right, leaving our valued customers thrilled with our services. Our competitive value and exceptional product line has earned us hundreds of happy customers who often recommend us to others who can benefit from our honest and quality service. We are fully insured, employ only trained professionals, and stay afloat of the latest technologies to guarantee that our service is unmatched! Call or contact us for a free estimate.

John B.

01:56 26 Feb 26

John and his crew did all that I ask, I added several more tasks , did excellent work, did everything that he promised. I would highly recommend him, have used him for several other things since. I’ve recommended him to neighbors, friends and family, he doesn’t disappoint

Liza Lepczyk A.

14:22 24 Feb 26

I used Preferred Contracting for a number of projects when I bought my new house and they were absolutely fantastic. They installed my new click lock vinyl floors, replaced my old windows with affordable, but energy efficient new ones and installed an exhaust fan in my bathroom that didn't previously have one. John and his team were fast, affordable and provided quality work!

Laura A.

20:34 10 Sep 24

We hired John Zolko at Preferred Contracting Services to completely rebuild our house’s original Victorian box gutters. He worked with our budget (and we changed the scope of the project a couple times). He and his crew were honest and hard-working. And fast! The whole thing was done in two weeks! And the craftsmanship is just beautiful.

Jeffrey C.

10:42 17 May 23

John and his team are wonderful. This is a family small business which John has owned and operated for decades, so his experience is unsurpassed. John will hang from his gutters to demonstrate their strength, and he applies the same confidence in all of his work given that he's simply been doing this for so long that he knows all of the ins and outs. Experience counts in this business. Highly recommended

Ed W.

15:53 08 May 20

John has always proven to have the upmost integrity and Christian values. Highly recommended!

Larry L.

13:10 15 Oct 19

Horrific company! Avoid!

Greg Y.

13:59 25 Sep 18

Good luck getting in touch with these guys. Calling their number puts you through a painful list of questions about free roadside assistance, free trips to Cancun, and free pet grooming. All I want is a quote on a little roofing project.
Their web site has a form to contact them via email, but that doesn't work.
On to the next guy!