residential & Commercial Roofers Columbus Ohio
Setting the Standard for Quality Roofing Workmanship in Central Ohio Since 1986
With 30 years of roofing experience, our passion to bring quality roofing services to the Central Ohio area has made us an industry leader in the commercial industry.
DeMarco currently provides specialized products and services for your commercial roofing needs, including historical restoration, box gutters, chimney repair, and general contracting. We incorporate a skilled roofing labor force and knowledgeable leaders in the field to fulfill all our Columbus area customer’s needs. Demarco proudly carries an A+ rating as an Accredited Better Business Bureau Company.
Contact Us Today For Expert Roofing
Please take a moment to browse through our roofing website to learn more about us and how we can offer you the DeMarco Difference in the Columbus area. No matter what type of commercial roofing project in Ohio you have, we’ve got you covered. When you’re ready to get started, fill out our contact form and someone from our team will contact you.
“I have nothing but positive things to say about your roofing company, and mainly attributed to my interaction with both Kim and Victor. One particular issue was very complex and unusual in nature and despite the many roadblocks, they were able to identify and remedy the problem and provide real time information so I could effectively communicate with the tenant. The roof installation went smoothly. It is rare to find the level of service that your roofing team provides and they are top notch!”
Tracey S. | Columbus Property Manager.
The DeMarco Roofing Difference
DeMarco works safely. All supervisors carry OSHA 30 cards. All roofing employees carry OSHA 10 hour cards. DeMarco’s Ohio Bureau of Workers Comp published Experience Modifier Rating is 0.79. The best commercial roofing projects start with an Ohio roofing contractor that is always up to date on safety.
DeMarco is licensed both as a Roofing Contractor and as a General Contractor and pull the required permits for Columbus area roofing projects, no matter what type of commercial roofing. When it comes to having the right permits, trust the top roofing contractor in Ohio.
Jobs People Won’t Do
We love a roofing challenge. At DeMarco we embrace projects that are logistically difficult, time constrained, and complex. With our breadth of experience and “can-do” attitude we make the extraordinary routine for Columbus Ohio roofing.
DeMarco’s work is graded so highly by the manufacturer’s inspectors coupled with our long-term performance give them the confidence to provide our customers with 20, 25, and 30 year “No Dollar Limit” manufacturer’s warranties. When you want peace of mind from an Ohio roofing contractor, choose our commercial roofing team.
Quality and Workmanship
We use our own Columbus roofing crews not subcontractors. The owners of the company are involved in every project from start to finish. We are exacting, demanding, and we deliver. High quality workmanship and attention to the details are what distinguish DeMarco in Columbus. Our customers are loyal because we do it right the first time!
DeMarco was engaged by the Columbus Fair Auto Auction for roofing to evaluate a leaking roof and were concerned about its structural integrity. We performed several core cuts. The core cuts showed that leaks had soaked all the insulation. The insulation was removed but because of moisture being trapped against the steel roof deck the panels had begun to rust. We did several pull tests and discovered the deck was no longer adequate and needed to be replaced.
The old roof deck was removed, and DeMarco installed new steel decking. New poly-iso insulation and EPDM roof membrane were installed and the building is now safe, dry, and functional. The manufacturer provided a 20 year NDL, or “No Dollar Limit” warranty on the new roof. We are so proud of our commercial roofing team and the work they did for this Ohio business.
DeMarco, Inc. was recently engaged for roofing by a building owner to flash a roof curb for a new chiller plant. Lack of water treatment had caused the evaporator tubes to leak. It did not take long for the shell in turn to leak and rust through. The flashing of the roof curb the unit sits on are caulked around the edges and depending on conditions need to be re-caulked every 3-5 years. They are not designed to be exposed to a constant stream of water such as the condition created by the failed chiller. One of our competitors thought the deck was just fine and recommended only reworking the roof curb. Luckily for the owner, the HVAC contractor and an alert new property manager requested further inspection before setting the new, more efficient, (and heavier) chiller plant.
The failed decking was removed and replaced. Note a new piece of steal deck that was loose laid over the rusting one, We removed and all the rusted deck. DeMarco fabricated a new curb for the rooftop unit and flashed all the penetrations. DeMarco worked with the owner’s HVAC company to coordinate the tear off and repair with the delivery of the new roof top unit. The building occupants are now comfortable and don’t have to worry about the unit crashing into the building. The work our Ohio commercial roofing team did on this project will be enjoyed for years to come.
Leaking from the tower had caused caulking and the drain to fail. Ponding water was diffusing thru the membrane. DeMarco had performed core cuts during our initial assessment and determined that all of the existing insulation was soaked and the wooden deck was rotting out. DeMarco coordinated with Case Bowen Companies HVAC contractor to begin demolition within hours after the chiller was removed. All the roofing, insulation and re-decked the area.
Due to the high traffic use, the area was re-roofed with 3″ of polyiso insulation, 90 mil EPDM, and the entire area covered with walk pads. It isn’t literally bulletproof, but the chiller area roof will for sure hold up to any HVAC tech who walks all over the “extra” screws when they service the unit. Manufacturer provided the owner a 20 year No Dollar Limit roofing warranty. This gave the customer peace-of-mind that they were working with the top commercial roofing contractor in Ohio!
Like many buildings this project used the roof top for many of the building service functions. The elevator equipment room, an electrical room, pumps, roof top units, and a cooling tower were all located on the roof and the foot traffic generated to service them was taking its toll on the roof that was over 18 years old. Attempts to maintain the roof had been made but patches on top of patches, poor details, and incompatible materials had resulted in persistent leaks that damaged the building and were a great source of annoyance to the condominium owners.
Everything was removed to the structure and the roof was re-decked with plywood, poly-iso insulation and a new HD coverboard. A Thick 90 mil EPDM membrane was installed, and the entire area was covered with walk pads to withstand the foot traffic and protect the roof. Our commercial roofing team did a thorough job making sure the client was happy with the results.
This building had equipment cabinets on a 12″ high superstructure with multiple cable trays, a forest of penetrations, and a bunch of exhaust fans.
We were able to work closely with the cell phone provider to remove the grating in order to access the roof carefully & raise the cables so we could roof underneath. In some instances we coordinated our material lifts with temporary relocation of their facilities. By working closely with the cellular company we never had to de-energize or interrupt their service. DeMarco’s workers used non-ionizing radiation monitors to make sure the work was carried out safely.
This drain is already in a less than ideal spot and does not have the proper fall to it. Further complicating things are multiple conduits feeding the cell phone providers equipment shelter. There is also an abandoned plenum that was used for additional conduits and because it was near the bottom of the superstructure ladder, it was used as a step by people servicing the equipment.
DeMarco’s commercial roofing team created positive drainage and sumped the drain. We also worked with the cell phone provider to sort out and clean up the conduits penetrating the deck and grouped them into a pitch pocket. Lastly, we capped the abandoned plenum and covered it with 1/8″ stainless steel checker plate so techs can step on it as much as they want.
This project had three layers of membrane and built up roof. It also had over 100 penetrations, two cell phone providers, four antenna arrays, and one of them was only 12″ above the deck. In addition to this mess there were multiple leaks.
Our commercial roofing team removed all of the roofing down to the concrete deck. DeMarco carefully coordinated work dividing it into sections. We installed a fully adhered 90 mil EPDM Carlisle system that provided the owner with a 30 year No Dollar Limit Warranty. We strive to be the top roofing contractor in Ohio and back it up with the top commercial roofing warranty.
Our Columbus Ohio Roofing Services
Commercial Roofing Services
DeMarco’s commercial roofing services include schools, hospitals, hotels, office buildings, skyscrapers, warehouses, and retail centers. No matter the complexity of the project, from single story to 50-stories, DeMarco has the expertise to handle any size project. We are certified installers of low slope roofing systems including EPDM, PVC, TPO, and KEE from manufacturers such as Firestone, Carlisle, GAF, Johns Manville & more.
Roof Curb Installation
Metal Roof Repair
For the homeowner who wishes to preserve the integrity of their investment, DeMarco shines at the “specialty” side of the roofing business. Whether it be Slate, Cedar Shake or Dimensional Shingles, our reputation has enjoyed the longevity of assisting homeowners enhancing the various historical communities around Columbus for over 30 years.
Slate Replacement & Repair
Shingle Replacement & Repair
Flashing Replacement & Repair
Historic Building Restoration
DeMarco specializes in box gutter & stop gutter repair services. Our roofing company has over 30 years of experience repairing gutters on historic homes in Victorian Village, German Village, Bexley, Upper Arlington, and other areas of Columbus, Ohio. We also provide installation, box and gutter replacement, and commercial services.
Box Gutter Replacement & Repair
Stop Gutter Replacement & Repair
Masonry & Caulking Services
Roofing is the most essential component separating your structure from the elements. Even the most durable roofing materials need to be periodically inspected and maintained. Caulking of penetrations, refilling and renewing pitch pockets, repairing of damage from blowing debris or excessive foot traffic along with masonry & chimney repair will protect your investment and prolong the service life of your roof.
Caulking - Control Joints
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1160 South Front Street, Columbus, OH 43206