Commercial Roof Replacement Cost Per Square Foot
Commercial roof replacement cost per square foot has no single number until we see the building. Size, material and the condition of the existing roof each push it up or down, and only a walkthrough turns that into a real figure. BST Roofers measures what matters on site and hands you a written number, not a guess. Start with a free estimate or call (929) 295-4523.
What Sets Your Price Per Square Foot
A handful of factors move that number more than anything else. Once we know these, the range narrows fast.
We check all five on the free on-site assessment before any number goes on paper.
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Roof size
More square footage spreads fixed costs like mobilization further, but total price still climbs with area.
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Pitch and slope
Low-slope and flat commercial roofs price differently than pitched ones, in materials and in labor.
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Existing condition and layers
A roof with multiple layers already down costs more to clear than one clean deck.
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Material choice
TPO, EPDM, PVC, modified bitumen and metal all sit at different price points and wear differently.
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Rooftop equipment
HVAC units, vents and skylights add flashing work and labor around every penetration. Our commercial skylight replacement page covers what that adds to a job.
Estimate Your Rough Range
Answer four quick questions and see where your project likely lands before you ever pick up the phone.
Your building's square footage- The material you are leaning toward
- How many layers need to come off
- Step 1Roof size
- Step 2Type & pitch
- Step 3Material
- Step 4Condition
Material Choice And What It Adds To The Job
Material is one of the biggest swings in your final price per square foot. Here is roughly where each system sits and who it tends to suit.
| Compare | TPOSingle-ply membrane | EPDMRubber membrane | PVCSingle-ply membrane | Modified bitumenMulti-ply system | MetalPanel system |
|---|---|---|---|---|---|
| Relative cost | Mid | Lower | Higher | Mid | Higher |
| Best fit | Retail, office | Warehouse, industrial | Restaurant, food service | Multi-family, mixed-use | Distribution, manufacturing |
Tear-Off, Layers And What They Change
Whether we strip your roof to the deck or work with what is there changes labor, disposal and how long the job takes.
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01
Single layer removal
Single layer removal clears fast and keeps labor costs down.
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02
Multiple layers
Multiple layers slow the tear-off and add disposal volume.
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03
Disposal and permit fees
Disposal and permit fees scale with what comes off the roof and what the job requires under local code.
What A Written Quote Should Include
A proper commercial quote spells out exactly what you are paying for, not a lump number with no backup.
- 1On-site assessment findings
- 2Material and membrane thickness specified
- 3Tear-off and disposal scope
- 4Insulation and drainage work, if included
- 5Warranty and timeline
Our commercial roofing replacement contractor page covers who performs the work once that quote is signed.
Cost FAQ
Why can't you give a flat price per square foot online?
Because no two roofs cost the same. Size, pitch, material and how many layers need removal all shift the number, so an online rate would either overpromise or undersell your job. An on-site assessment is what turns a range into an accurate figure.
Does the estimate cost anything?
No, our on-site assessment and written quote are free. We measure your roof, note its condition and give you real numbers with no hidden fees attached.
What's included in the on-site assessment?
We check roof size, pitch, existing layers, drainage, flashing around penetrations and any rooftop equipment. That walkthrough is what our written quote is built from, not a guess from the ground.
How long does a commercial replacement take?
Timeline depends on size, material and season, but most projects run from a few days to a couple of weeks. We set the project timeline with you before work starts, so scheduling around your business is part of the plan.
Does roof size alone determine the price?
No, size is one input among several. Pitch, material, condition and layers to remove all carry weight, which is why two buildings of the same size can land at different totals.
Get Your Exact Price
Ready for a real number instead of a range? Get your free estimate or call (929) 295-4523 and we will schedule your on-site assessment.