A flat roof lives or dies on its details.
Licensed, insured, never subcontracted. We tell you honestly where a flat roof is actually failing.
A flat roof lives or dies by its details. The membrane is straightforward; it’s the drainage, the flashing around every unit and curb, and the edge terminations that decide whether a flat roof stays watertight or ponds water until it fails. In Michigan, add snow load and freeze-thaw to everything that can go wrong.
We install and replace commercial flat roofs. TPO and single-ply membrane systems, with the detailing that actually keeps them dry. Proper slope and drainage so water leaves the roof, watertight flashing at every penetration, and terminations built to last. We assess honestly whether your flat roof needs replacement or whether a repair and better drainage will do.
We handle commercial flat roofs for property owners across Lansing, East Lansing, Okemos, St. Johns, Grand Ledge, Owosso, and the surrounding mid-Michigan communities, nine counties around our home base in St. Johns. Wherever you are in that area, you get the same thing: a licensed, insured, quality-vetted crew that never subcontracts, four manufacturer certifications behind the work, and a straight answer about what the building actually needs. That last part is the reason Andrew, Aaron, and Preston started Anchor in the first place.
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What our commercial flat roofs covers.
- Membrane systemsTPO and single-ply, heat-welded watertight
- Drainage correctionSlope, drains, and scuppers that clear water
- Ponding-water fixesAddress low spots that hold water
- Penetration flashingWatertight around every unit and curb
- Edge & parapet detailingTerminations built to last
- Insulation & recoverAdd R-value and the right approach
Commercial Flat Roofs the way it should be done.
It starts with a free, no-obligation look at what’s actually going on. We don’t quote commercial flat roofs over the phone or from a photo. We come out, inspect it properly, and give you an honest read on where the membrane is actually failing. If a smaller fix will hold, we’ll tell you that. If it won’t, we’ll show you why, with pictures, so the decision is yours to make on real information.
Then our own crew does the work. We never subcontract commercial flat roofs to a rotating cast of strangers, the people who quoted your job are the people on your property, which is how the details stay right from the first fastener to the final cleanup. As certified installers, we do the work to manufacturer spec, not the fast way, because that’s what makes it last and keeps your warranty intact.
And we build for Michigan. Snow load, ice, wind, and the freeze-thaw that punishes everything up here, we account for all of it in how we detail the work. When we’re done, we clean up after ourselves and walk you through what we did. You’re left with commercial flat roofs you can stop thinking about, which is the whole point.
We won’t take your money for work the building doesn’t need. That’s the reason this company exists.
Property owners choose us because we tell them the truth. We won’t take your money for work the building doesn’t need, and we won’t cut a corner you can’t see to win a job on price. That’s not a slogan. It’s why we’re certified by CertainTeed, LP SmartSide, James Hardie, and Lomanco, why we carry full licensing and insurance, and why so much of our work comes from people who were told straight and treated fairly. When you’re ready, the first step is simple: a free look, an honest read, and a fair price in writing.
Done the honest way.
Drainage is everything
On a flat roof, standing water is the enemy. We correct slope and drainage so water actually leaves the roof instead of pooling until it finds a seam.
Details, not just membrane
The flat part is easy. The flashing at every curb, unit, and edge is where flat roofs leak, and where we do the careful work.
Honest repair-or-replace
A flat roof is a major expense. If yours can be repaired and re-drained rather than replaced, we’ll tell you plainly.
From recent jobs.
Real Anchor work across mid-Michigan, the standard your commercial flat roofs gets. More in the gallery.
Straight answers about commercial flat roofs.
No hedging. Here’s the plain version of what homeowners ask us most, and you can see finished work in our gallery.
Why does my flat roof keep leaking?
Flat-roof leaks almost always come from the details rather than the field of the membrane, failed flashing around units and curbs, open seams, clogged or poorly placed drains, or ponding water that eventually finds a weak point. Finding and correcting the real cause is what stops the leak for good.
What is ponding water and why is it a problem?
Ponding is water that sits on a flat roof more than a couple of days after rain, usually because of inadequate slope or drainage. It accelerates membrane breakdown, adds weight, and eventually finds a seam to get through. Correcting drainage and low spots is key to a flat roof’s lifespan.
What’s the best membrane for a commercial flat roof?
TPO single-ply is one of the best choices for our climate, it’s reflective, durable, and heat-welded into a continuous watertight surface that handles freeze-thaw well. The right system for your building depends on its use, the existing roof, and your budget, which we’ll walk through honestly.
Can a flat roof be repaired or does it need replacing?
Many flat-roof problems, punctures, seam failures, flashing issues, drainage, are repairable on a membrane that still has life. We only recommend replacement when the roof has genuinely reached the end. We’ll inspect it and give you a straight repair-or-replace recommendation.
How long does a commercial flat roof last?
A quality single-ply membrane roof, properly installed and drained, generally lasts 20 to 30 years. Membrane thickness, seam-weld quality, and especially drainage detailing determine where in that range a given roof falls, which is why we don’t cut corners on the details.
How much does a flat roof cost?
It depends on the size of the roof, the membrane and insulation, the drainage work needed, and whether it’s a tear-off or recover. We give you a clear written proposal after inspecting the roof and understanding how the building is used.
Other things we do.
Serving Lansing, East Lansing, St. Johns and the surrounding counties. See our service area → · Questions? Contact us or call (989) 900-0018.
Let’s take an honest look at your commercial flat roofs.
Call the crew for a free, no-obligation flat roof look. We’ll tell you straight up where it’s failing.
(989) 900-0018