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John Beal Roofing rectangle logo in yellow and black Commercial Roofing STLBy John Beal Roofing

What Commercial Roofing Costs in St. Louis, at a glance

Commercial roof pricing in St. Louis comes down to five things: the size and shape of the deck, the system specified, whether the old roof is torn off or covered, how much insulation and deck repair the roof needs once it is open, and access. John Beal Roofing gives a written scope with those line items broken out, at no cost. Call (314) 429-6000.

The Details

What Actually Moves The Number

Size and shape

A wide open 60,000 sq ft deck installs faster per square foot than a cut-up 12,000 sq ft roof with forty penetrations.

System and thickness

A 45-mil membrane and a 80-mil membrane are not the same purchase, and neither are the insulation R-values under them.

Compare roof systems

Tear-off vs recover

Recovering a sound, dry roof saves real money. Tearing off a saturated one is the only honest option.

Deck and insulation repair

What we find once the roof is open. We carry it as a stated allowance so it is not a surprise change order.

Access and staging

Crane time, street closures, night work and dock coordination all land in the price.

Warranty term

A 10-year and a 20-year NDL warranty carry different material specs and different numbers.

Warranty guide

Ask any bidder to break those six items out and the numbers stop looking random. Two bids that differ by forty percent usually differ because one of them assumed a recover and the other priced a tear-off, or one carried a deck allowance and the other left it as a change order waiting to happen.

We put those lines in writing on every commercial scope, at no cost, whether or not the job comes to us.

Rooftop HVAC unit sealed by a commercial roofing St Louis contractor
Free Of Charge

We Put This In Writing

Every commercial inspection we run ends with a written record: what we found, photographed, ranked by urgency, with a real number attached.

It costs nothing and it is yours whether or not we do the work. Owners use ours to sanity-check other bids all the time, and that is fine by us.

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Related: TPO vs EPDM vs PVC compared

Common Questions

Will you give a ballpark number over the phone?

We can give a range once we know the square footage, the current system and whether the roof has been recovered before. A real number needs eyes on the deck.

Why is one bid so much lower than the others?

Usually scope, not generosity. Check the membrane thickness, the insulation, whether tear-off is included and what the deck-repair allowance is.

Is a coating cheaper than a replacement?

Yes, substantially, when the roof qualifies. On a roof with wet insulation a coating is money spent to seal water inside the building.

Do you finance commercial roofs?

We can work with your timing and phase the project by section or building so the cost lands across budget cycles.

Free Commercial Roof Evaluation

Tell us about the building and a dispatcher will call to schedule.

No cost, no obligation. Water coming in now? Call (314) 429-6000 — the line is answered 24/7.

Water Coming Through The Ceiling?

Commercial leaks do not wait for business hours. A live dispatcher answers around the clock and we get crews moving the same night.

(314) 429-6000 Free Evaluation