A ceiling tile in the back office has a brown ring that gets bigger after every afternoon storm. Or a bucket is sitting next to the inventory again, and somebody has to empty it before close. When you need commercial roof repair in Altamonte Springs, you’re not only worried about the roof. You’re worried about stock, equipment, tenants and a day of business lost to water.

You also don’t want to hear “you need a whole new roof” from the first person who walks the membrane. Most flat roofs that leak can be repaired, and you deserve someone who’ll show you which kind yours is.
APC Roofing works on commercial and light-commercial roofs across Central Florida. We’re GAF Certified, licensed in Florida (CCC1337030) and insured, and the inspection is free.
Why commercial roofs in Altamonte Springs leak
Most offices, retail strips and warehouses around Altamonte Springs have flat or low-slope roofs. Those roofs don’t shed water the way a steep house roof does. They move it slowly toward drains and scuppers, and Central Florida gives them a lot to move.
A summer afternoon storm can drop a heavy load of rain in under an hour. If a drain strainer is packed with leaves or debris, water backs up and sits on the roof. Standing water finds any open seam, and it adds weight the roof was never meant to carry for long.
The sun works on the roof every day of the year. UV and heat dry out membrane seams, crack the sealant around pitch pockets and shrink the rubber at pipe boots. On a dark roof the surface gets very hot by midafternoon, and that daily heating and cooling keeps working at every joint.
Hurricane season adds wind. Uplift is strongest at the corners and edges of a flat roof, so that’s where membranes peel back first and where edge metal gets loose.
Commercial roof repair in Altamonte Springs: where leaks start
On commercial roof repair calls, the leak is rarely in the middle of a clean, open field of membrane. It’s usually at a detail:
- Rooftop HVAC units. The curb flashing around each unit, plus condensate lines dripping onto the roof.
- Pipes, conduit and pitch pockets. Every penetration is a hole that has to stay sealed, and sealant shrinks as it ages.
- Parapet walls and coping. Cracked joints in the coping cap or worn counterflashing let water in behind the membrane.
- Drains and scuppers. Clogs, failed drain clamping rings and low spots that hold water.
- Seams and laps. Heat-welded TPO seams and taped EPDM seams can open up with age or after foot traffic from service techs.
On a steel deck, water can run along the flutes and drip several feet away from where it got in. That’s why patching right above the stained ceiling tile so often fails. A careful inspection works upslope from the stain and checks every detail along the way.
Commercial roofing systems we repair
We work on the low-slope systems common on Altamonte Springs commercial buildings: TPO, EPDM, built-up roofing (BUR) and other membrane roofs. We also repair metal panel roofs on shops and outbuildings, where the trouble is usually aging fastener washers, loose trim or rust at laps and cut edges.
If your building has a single-ply roof, our page on TPO roofing in Altamonte Springs explains how that membrane ages. For smaller flat roofs over additions and porches, see flat roof repair.
Wet insulation changes the answer
The most important question on a leaking flat roof is what’s underneath. Most commercial roofs have a layer of rigid insulation between the deck and the membrane. Once that board soaks up water, it stops insulating, stays wet against the deck and can rust a steel deck from the top down.
Before recommending anything, we check for wet insulation in the leak area. If it’s dry, a targeted repair is often all you need. If a section is soaked, that section has to come out and be replaced, because a new membrane over wet board just traps the problem.
Repair, partial replacement or a new roof
A sound membrane with a few failed details gets repaired. That’s the most common outcome.
When one area is saturated or badly worn and the rest is in good shape, replacing that section can be a reasonable middle step.
A full commercial roof replacement makes sense when the seams are failing across the whole roof, wet insulation is widespread or repairs keep piling up. If you get there, you’ll see the evidence in photos first. Our commercial roofing in Altamonte Springs page covers replacement and new installs.
How it works with APC Roofing
- Book your free inspection. Call 407-270-1129 or request a free online estimate. Let us know about roof access, rooftop equipment and any times that work best for your business.
- Get a clear, honest assessment and estimate. We check drains, seams, flashings, curbs, edges and the leak area, and you get photos with a written summary and estimate.
- The repair gets done and the roof is left clean. Old material and debris come off the roof with the crew.
Financing is available through Aqua Finance, Fortifi, Hearth and Home Run Finance if it helps to spread out the cost.
Commercial roof questions from Altamonte Springs owners
Can you repair a flat roof instead of replacing it?
Often, yes. If the leak comes from a failed detail and the insulation underneath is dry, a repair is usually the right call.
Do you work on TPO and EPDM roofs?
Yes. We repair and replace TPO, EPDM, built-up and other membrane roofs, along with metal panel roofs on commercial buildings.
Why does my roof only leak in heavy storms?
Heavy, wind-driven rain and backed-up drains put water where light rain never reaches, like the top of a curb flashing or a coping joint. That’s a clue we use to track the source.
Can you handle storm damage on a commercial roof?
Yes. We document the damage with photos, provide an estimate and work with your adjuster. You file the claim with your insurance company and pay your deductible.
Keep your building dry and open for business
A small flat-roof leak tends to grow quietly, soaking insulation and ceiling tiles long before anyone sees a drip. Catching it early usually keeps the fix small.
Call 407-270-1129 to book your free commercial roof inspection. You’ll know what’s wrong, what it takes to fix it and what you can expect next, so the roof stops being something you have to think about.
























