
Commercial Roofing in Lancaster, PA
Flat and low-slope commercial roofs have their own rules. We install and repair the systems that keep water off your building and your business running.
Low-slope roofs need the right system
Commercial and flat roofs pond water, take foot traffic, and house rooftop equipment, which is why they fail differently than a sloped shingle roof. Ponding, seam failures, and worn membrane are the usual culprits.
A leak on a flat roof is a different animal than a leak on a house. Water sits instead of running off, so a small breach at a seam or around a drain can travel a long way under the membrane before it shows up as a stain on a ceiling tile, often nowhere near the actual failure. By then it may have soaked the insulation across a whole section. On a working building, that's not just a repair bill, it's downtime, ruined inventory, and unhappy tenants.
Our approach
How we handle commercial
We assess the existing system, recommend the right membrane, TPO, modified bitumen, or a coating where it fits, and install or repair it to keep your building dry with minimal disruption to your operation.
We start by understanding how the building is used and what's sitting on the roof, because a warehouse, a strip retail center, and a restaurant with a busy kitchen exhaust all stress a roof differently. Then we recommend the system that fits: a single-ply TPO membrane where a clean, reflective surface makes sense, modified bitumen where durability and foot traffic are the priority, or a roof coating when the existing system still has life left and just needs to be sealed and extended.
We detail the parts that actually fail, the seams, the drains and scuppers, and the curbs around HVAC units and vents, because that's where nearly every commercial leak starts. And we schedule the work around your operation. Staging, access, and noise get planned up front so your customers and staff aren't stepping over our crew, and so a re-roof doesn't cost you business days you can't get back.
Older commercial roofs in our area often carry layers of history, past patches, coatings, and repairs from whoever was cheapest that year. Part of what we do up front is figure out what's actually up there and whether it can be built on or needs to come off, so you're not paying to install a new system over a wet, failing one that will telegraph its problems right back through in a season or two.
What’s included
- Flat and low-slope systems
- Single-ply TPO membrane
- Modified bitumen
- Roof coatings and restoration
- Seam and membrane repairs
- Drain, scupper, and curb detailing
- Rooftop penetration detailing
- Scheduling around your operation
- Maintenance and inspections

Service area
Commercial Roofing across South-Central PA
We handle commercial roofing out of Lancaster for homeowners all over the region. Find your town:
Questions
Commercial Roofing, answered
Can you repair a commercial roof instead of replacing it?
Often, yes. Seam and membrane repairs or a roof coating can extend the life of a commercial roof for years. We'll inspect it and give you the honest repair-vs-replace math.
What commercial roofing systems do you install?
Mostly flat and low-slope systems: TPO and modified bitumen, plus roof coatings where they fit. We match the system to how your building is used and what's already up there.
How much does a commercial roof cost?
It comes down to square footage, the membrane, roof access, and how much of the existing system stays. We inspect it and give you an itemized scope so facility budgets have real numbers to work with.
Can you work around our business hours?
Yes. We schedule the work to keep disruption to your operation as low as possible, including staging and access so your customers and staff aren't in the middle of it.
How long does a commercial flat roof last?
Depending on the membrane and how it's maintained, most commercial systems run 15 to 30 years. Regular inspections and small repairs are what get you to the top of that range.
Do you offer free commercial roof inspections?
Yes. We inspect the existing system, document its condition, and give you an itemized scope and estimate at no cost.
Can a roof coating extend the life of our existing roof?
Often, yes. On the right substrate, a coating can add years and buy time before a full replacement. We'll tell you honestly whether your roof is a good candidate.
Do you flash around rooftop HVAC units and penetrations?
Yes. Curbs, vents, drains, and HVAC penetrations are where low-slope roofs usually leak, so detailing them correctly is a core part of the work.
Are you licensed and insured for commercial work?
Yes. We're a registered PA Home Improvement Contractor (PA195142), carry insurance, and are happy to provide documentation for your records.
Do you offer commercial roof maintenance or inspections?
Yes. Scheduled inspections and small repairs are the cheapest way to get the full life out of a commercial roof, and we can set that up with you.
Can you fix a commercial leak without shutting us down?
Usually, yes. We stage the work and access to keep disruption to your operation as low as possible while we stop the leak.
What's the difference between TPO and modified bitumen?
TPO is a single-ply membrane with a clean, reflective surface that helps with summer heat, and its seams are heat-welded into one continuous sheet. Modified bitumen is an asphalt-based system built up in layers, which holds up well to foot traffic and rooftop work. We match the choice to how your building is used rather than to whatever we happen to stock.
Ready to talk commercial roofing?
Free inspection, honest assessment, and a clear estimate. No pressure, no runaround.