There is no single honest number, and any roofer who gives you one before walking the roof is guessing. Commercial roofing is priced per square (100 square feet) and the range is wide because the variables are large: which membrane or system, the condition of the deck underneath, whether the insulation is wet, how the roof drains, how much rooftop equipment has to be worked around, and how the crew and materials get up there at all.
TPO, modified bitumen, built-up and metal sit at genuinely different price points, and the cheapest system is rarely the cheapest over ten years.
Wet insulation has to come out. That is the single biggest swing factor between an estimate and a final number.
Ponding water means the roof needs slope correction, not just a new surface.
A roof reachable by crane on a Sunday costs differently from one served by a stair tower in a live retail centre.
Where the substrate is sound, a coating can extend service life for a fraction of replacement cost — and it books as operating rather than capital expense.
Related: Commercial Roofing · Roof Insurance Claims
Before you call anyone
Substantially — where the substrate and insulation are sound. Over wet insulation it is money spent covering a problem rather than fixing it.
Because the deck condition and insulation moisture are invisible from the ground and are the two largest cost variables. A phone number is a guess; a scope is a commitment.
Next step
No obligation, no pressure, and no push toward work you do not need. If a repair is the right call, that is what we will quote.
Financing available · Warranty-backed work · Serving San Antonio since 2010
10127 Morocco St #195
San Antonio, TX 78216
Phone
(210) 896-3209
Availability
24/7 for storm and emergency response