Commercial Roof Replacement Cost
We are not going to publish a per-square-foot number, because any figure quoted before someone walks your roof is a sales tactic, not an estimate. What we can do is show you exactly what drives the cost and how to tell whether you need replacement at all.
How much does a commercial roof replacement cost?
Commercial roof replacement is priced by square footage, system type, deck condition, tear-off and disposal, and access. It is a capital expense, and on most buildings it is the single largest line item in a facility budget. Restoring a sound roof instead typically costs 50 to 70 percent less, because there is no tear-off, no disposal, and no downtime.
Real project photos from Conklin-trained contractors in the White Roofing Systems network. See more completed projects
When replacement really is the right answer
- Core samples show saturated or compressed insulation
- The deck itself is rusted through, rotted, or structurally unsound
- The roof has already been coated or recovered the maximum number of times allowed by code
- Widespread membrane failure across the field, not just at seams and details
- A building expansion or new rooftop equipment requires reworking the whole assembly
What actually drives the number
Two buildings with identical square footage can be quoted twenty thousand dollars apart, and both quotes can be honest. The variables are in the details that never show up in an online cost calculator.
This is also where bids get manipulated. A quote that comes in far below the others is usually cutting tear-off scope, insulation R-value, or warranty term, and none of those show up until years later.
- Square footage and roof geometry, including penetrations and curbs
- Tear-off labor plus landfill and disposal fees
- Insulation type and R-value required by current energy code
- Deck repair discovered only after the old roof comes off
- Access, crane or hoist requirements, and occupied-building scheduling
- Warranty term and whether it is prorated or non-prorated
How to find out what your building needs
The only honest path to a number is an on-site inspection with core samples. A core cut tells you whether the insulation is dry and the deck is sound, which is the single fact that decides restoration versus replacement.
If the roof is restorable, you get a written restoration proposal with the system, thickness, prep steps, warranty term, and price. If it is not, we will tell you that plainly. Selling a coating over a wet deck helps nobody.
- Free on-site inspection with photo documentation
- Core samples to verify deck and insulation condition
- Written proposal naming the system, thickness, and warranty
- A straight answer on restore versus replace, with the reasoning
Restoration vs. replacement, side by side
For a roof with a dry deck, the comparison is not close on cost, and it is not close on disruption either.
- Cost: restoration typically 50 to 70 percent less than full replacement
- Downtime: restoration happens over an operating building, replacement does not
- Disposal: restoration sends nothing to a landfill, tear-off fills dumpsters
- Exposure: replacement leaves the deck open to weather, restoration never does
- Renewal: a restored roof can be recoated for a new warranty term, a new roof cannot
- Requirement: restoration only works on a dry, structurally sound deck
Request a Free Roof Inspection
Tell us your building address and roof type. We route your request to the nearest Conklin-trained commercial roofing contractor, usually within 24 hours.
Frequently Asked Questions
How much does a commercial roof cost per square foot?
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How long does a commercial roof last?
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Is a roof replacement a capital expense or maintenance?
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Does insurance cover commercial roof replacement?
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How do I know if I actually need a new roof?
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No-cost commercial roof inspection
Get a Straight Answer on Your Roof
Call 1-309-303-3128 or request a free inspection. You get photo documentation, a written proposal, and an honest recommendation, even when that recommendation is to wait.
Keep Reading on This Site
Industry Sources
- National Roofing Contractors Association(opens in a new tab)
Commercial roofing standards and guidance.
- Cool Roof Rating Council. Building Owner Resources(opens in a new tab)
How reflective roof surfaces lower cooling load.
- U.S. EPA. Using Cool Roofs to Reduce Heat Islands(opens in a new tab)
Measured surface-temperature and energy impacts.