Commercial Roof Replacement in PA, NJ & DE
Tear-Off to New Membrane, Planned Around Your Operations
Commercial roof replacement is the full renewal of a flat or low-slope roof system: tear-off or recover, new insulation where code requires it, and a new membrane with fresh warranties.
- Response within 1 business day
- Written scope
- Free assessment
When Replacement Beats Repair
A roof with isolated seam failures, flashing problems, or a few punctures is usually a commercial roof repair job, and we will tell you so. Replacement becomes the better spend when moisture is trapped in the insulation across large areas, when seams are failing faster than they can be patched, when the membrane is brittle across the field, or when repair costs are recurring every season. The assessment settles it: thermal imaging finds the wet insulation, core samples confirm what is under the membrane, and the report compares the cost of continuing to repair against replacing now, over 10, 20, and 30 years.
Tear-Off vs Recover
There are two ways to replace a commercial roof. A full tear-off removes everything down to the deck, corrects any deck damage, and rebuilds the assembly with new insulation, which is the reset button and the only option when insulation is wet. A recover installs a new membrane over the existing roof, which costs less and moves faster, but only qualifies when the existing assembly is dry, the deck is sound, and the roof has a single existing layer, since building codes generally cap assemblies at two layers. The assessment tells you which one your building qualifies for, and the proposal prices both when both are viable.
Get a documented assessment of your building
Condition, options, and pricing in writing, built for capital planning.
- Response within 1 business day
- Written scope
- No obligation
Systems We Install
TPO leads for reflectivity and summer cooling costs, with a typical 15 to 25 year service life. EPDM brings decades of freeze-thaw track record on low-slope buildings in this climate. PVC earns its premium where kitchens or chemical exposure demand it. Modified bitumen suits high-traffic roofs that take regular foot traffic, and metal makes sense where a 40 to 60 year life justifies the investment. The full comparison lives in our membrane guide, and the spec that fits your building comes out of the assessment, not a brochure.
What Commercial Roof Replacement Costs
Commercial roof replacement cost is set by five measurable factors: the system specified, the insulation thickness code requires, deck condition discovered at tear-off, the count of penetrations and curbs, and site access. The ordering is consistent even when buildings are not: a recover costs meaningfully less than a full tear-off where the roof qualifies, a coating costs less again, and insulation scope moves the number more than the membrane brand does. Every Sundra proposal itemizes each factor so the price you approve is the price you pay, and commercial financing options are coordinated directly when the project calls for them.
Replacing the Roof With Solar on It
If panels sit on the roof, replacement is a two-part project: solar panel removal and reinstall around the roofing work, handled by the same team. And if solar is in your plans, replacing the roof first is the right order, because commercial solar arrays carry 25 to 30 year warranties that should age with a new membrane, not a dying one. A project starting now must be placed in service by December 31, 2027 to claim the 30% federal credit, which makes the combined decision worth pricing today.
The Replacement Process
Step 1: Assessment and Report
Roof measurement, thermal moisture scan, core samples where needed, deck and drainage evaluation, and a written report comparing repair, recover, and full replacement with life-cycle costs.
Step 2: Design and Permits
System specification, R-values, and drainage plan, with permitting handled for your jurisdiction: Pennsylvania and New Jersey under their Uniform Construction Codes, Delaware county by county.
Step 3: Phased Installation
Work staged in sections so the building stays open, quality control on every seam and flashing detail, tear-off waste contained and removed, and closeout with final inspection and manufacturer warranty activation. A typical 25,000 square foot replacement runs 2 to 4 weeks.
The work, and the people who hired us
“Sundra coordinated roofing and drainage work without disrupting operations. Communication stayed tight throughout.”
Commercial Roof Replacement FAQs
How much does commercial roof replacement cost per square foot?
It depends on five things we measure: system, code-required insulation, deck condition, penetrations, and access. A qualifying recover costs meaningfully less than a tear-off, and a coating less again. The free assessment prices your building specifically, itemized in writing.
How long does a commercial roof replacement take?
A typical 25,000 square foot building takes 2 to 4 weeks from mobilization through final inspection. Phased staging and scheduling around your hours keep operations running during the work.
Can the building stay open during replacement?
Yes. Work is staged in sections, noisy phases are scheduled around your operating hours, and interior protection is planned before tear-off starts. Keeping tenants operating is a design input, not an afterthought.
Should I tear off or recover?
Recover only qualifies when the existing assembly is dry, the deck is sound, and one roof layer is in place. Wet insulation, deck damage, or a second existing layer means tear-off. The thermal scan and core samples make this call with data.
Should I replace the roof before adding solar?
If the roof has under 10 to 15 years of service life left, replace it first, because removing and reinstalling panels to fix a roof later costs real money. Roof and solar as one project keeps warranties aligned and counts toward the December 31, 2027 placed-in-service deadline for the 30% federal credit.
Get Your Replacement Priced
The assessment is free, the condition report is yours either way, and the proposal compares repair, recover, and replacement in writing.
Let's look at your property
We'll walk the property, put what we find in writing, and price your options. No pressure, no obligation.
801 Bridgeboro Rd, Edgewater Park, NJ 08010
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