Commercial Services
Nationwide Flat Roofing and Silicone Coating Services
Celtic Roofing is a full-service flat roofing contractor serving property owners, property management groups, and facility managers coast to coast. Whether you need a silicone coating to restore an aging flat roof or a complete replacement, our crews deliver quality work on time and on budget. Every time.
Many Ways to Protect Your Flat Roof. One Contractor to Choose.
Most flat roofs don't need a full replacement. Many do. The right answer depends on the roof's condition, age, substrate, and your long-term plans for the building. With over 30 years of combined roofing experience and active projects nationwide, Celtic Roofing has the field knowledge to recommend what actually makes sense for your property, not what's most profitable for us to install.
30+
Years of Combined Experience
A+
BBB Accredited Since 2010
10-20 yr
Silicone Coating Warranty
Nationwide
Commercial Project Reach
Silicone Roof Coating That Restores Instead of Replaces
A silicone roof coating turns an aging flat roof into a seamless, waterproof, energy-efficient system without tearing it off. Celtic Roofing applies commercial-grade silicone restoration systems that extend roof life by 10 to 20 years at a fraction of the cost of full replacement.
What You Get
Flat Roof Repair and Replacement, Done Right the First Time
When coating isn't the answer, we replace. Celtic Roofing installs commercial flat roof systems built to stand up to what your region throws at them. We factor slope, substrate, age, and climate into every recommendation, then back the install with a warranty and a commitment you won't hear from the big national chains. When you pay for a flat roof from Celtic, you pay once.
Systems We Install
Insurance Claims? We Handle Those Too.
If storm damage is part of the picture, we work directly with your insurance carrier to document the loss, scope the repair, and manage the claim from inspection through final invoice. That experience matters for property managers navigating claims across multiple locations.
Built for Property Owners, Property Managers, and Facility Directors
Celtic Roofing works with single-building owners and multi-site portfolios alike. Our client base includes commercial property management groups, industrial facility managers, warehouse operators, retail property owners, HOA boards, and individual homeowners with flat roof sections. We operate nationwide for commercial and flat roofing work, with active projects and experience around the country.
Our Process
How Celtic Works
Whether your project is a 3,000 square foot bakery or a 100,000 square foot warehouse, we follow the same process.
01
Free Inspection
We walk the roof, photograph conditions, and assess substrate, drainage, and damage honestly.
02
Straight Recommendation
You get a written scope with coating and replacement options priced out side by side.
03
Clean Execution
Crews arrive on schedule, finish on time, and leave the site the way we found it.
Questions We Hear From Property Managers
Straight answers to the questions building owners and facility managers ask before signing a roofing contract.
A properly applied silicone coating lasts 10 to 20 years depending on climate, substrate prep, and ongoing maintenance. Celtic warranties labor and materials for 10 to 20 years on every silicone installation we complete.
Sometimes, but not always. Coatings seal pinholes and seam cracks on structurally sound roofs. If the underlying deck is saturated or the substrate has failed, we flag it during inspection and recommend targeted repair or replacement. Coating over a compromised roof costs more in the long run.
Silicone coating typically runs a fraction of the cost of a tear-off and replace, with far less disruption to business operations. We price both options on every project so you can see the numbers side by side before deciding.
Yes. Our crews have completed commercial flat roofing and silicone coating projects across the country. Property management groups use Celtic when they need consistent quality across a portfolio without hiring a different contractor in every market.
TPO, EPDM, modified bitumen, built-up roofing, and metal flat systems are all candidates for silicone restoration. We confirm compatibility with an adhesion test during inspection before any coating goes down.
Most inspections are scheduled within a week of your initial call. Storm damage and active leaks get prioritized for faster response.
Start With a Free Inspection
The only way to know whether your flat roof needs a coating, a repair, or a replacement is to put eyes on it. We walk the roof, tell you what we see, and price out your options with no pressure and no obligation.
