Sundra Solar & Exteriors
Roofing · Solar · Siding · Gutters · PA · NJ · DE

Commercial Roof Repair in Pennsylvania, New Jersey & Delaware

When water is dripping onto warehouse inventory, pooling across a retail floor, or tracking toward electrical systems, every hour of delay costs money.

  • Response within 1 business day
  • Written scope
  • Free assessment
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Commercial roof repair technician fixing a leak on a flat roof membrane
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Why Property Owners and Managers Call Sundra

Licensed and insured across PA, NJ, and DE with commercial roofing certifications. Data-driven diagnosis — infrared moisture scanning and detailed inspection find the water paths a walk-through misses, because the visible drip is rarely above the actual breach. Repairs scheduled around your operations: nights, weekends, phased zones, with clear communication to facility managers throughout. And an honest replace-versus-repair line: when repeated repairs stop making financial sense, we show you the math instead of selling another patch.

Start with a free consultation
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Commercial Roof Repair Services

Leak Repair

Water stains on ceiling tiles mean an active leak is already damaging the interior. We trace the infiltration path to its source — which is usually not directly above the stain — apply temporary protection immediately, and complete a permanent repair that addresses the breach, not the symptom.

Commercial roof repair on a flat roof membrane addressing localized damage at seams and flashings

Membrane & Flashing Repairs

Most commercial roof leaks originate at seams, flashings, and penetrations. We patch and reinforce membranes, reseal seams, and repair or replace flashing at HVAC curbs, vents, and pipe penetrations across every major system. Repair materials are matched to the existing roof — heat-welded seams on TPO and PVC, manufacturer-specified adhesives on EPDM — because a mismatched patch is a repair you pay for twice.

Storm & Wind Damage Repair

Hail bruising, lifted seams, punctures from wind-driven debris, and shifted rooftop equipment are often invisible from the ground. We document every finding with photographs and measurements in a written report you can hand to your insurance carrier, then complete the repairs. Bubbling or blistering on the surface signals trapped moisture underneath — the kind of finding that separates a proper inspection from a glance. More on what to look for after a storm in our storm damage guide.

Ponding & Drainage Repair

Standing water for more than 48 hours accelerates membrane breakdown and adds structural load. We clear and repair internal drains and scuppers, correct slope with tapered insulation where ponding recurs, and stop the cycle that turns a drainage problem into a membrane replacement.

Repairs Under a Solar Array

Panels over the failure point change the sequence, not the diagnosis. We detach, store, and reset the array around the repair, replace worn standoffs and flashings instead of reusing them, and verify production against the pre-removal baseline before calling it done. If the membrane is far enough along that another patch is the wrong call, the roof and the array get planned as one project instead. It is the same work either way, on homes and on commercial buildings.

Commercial roofing technician performing a preventative maintenance inspection on a flat roof

Preventative Maintenance Programs

The cheapest repair is the one caught at inspection. Semi-annual inspections plus post-storm checks, drain clearing, and minor repairs completed before they escalate — documented for warranty and insurance purposes, since most manufacturer warranties require maintenance records to stay valid. Details on our maintenance program approach.

Free building assessment

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
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How Repairs Work

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Step 1: Inspection and Diagnosis

On-site evaluation with moisture detection, leak-path tracing, and photo documentation. You receive a written assessment with findings, repair recommendations, and itemized pricing — typically within 24 to 48 hours of the inspection.

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Step 2: Repair Execution

Work scheduled around your operations, materials matched to your system, and correct technique on every seam and flashing — the difference between a repair that holds through freeze-thaw cycles and one that fails next season. Facility managers get progress updates throughout.

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Step 3: Verification and Documentation

Water testing and seam verification, drainage confirmation, and written closeout: what was repaired, how, and what to watch. Follow-up inspection after the next major storm is available as part of a maintenance program.

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Systems We Repair

TPO (45 to 80 mil, heat-welded repairs), EPDM (20 to 25 year typical lifespans, excellent cold-weather flexibility), PVC (chemical and grease resistance near restaurant and industrial exhaust), modified bitumen (multi-layer redundancy for high-traffic roofs), built-up roofing, metal roofing (40 to 60 year service lives with panel and fastener repairs), and architectural shingle on commercial applications. If you're weighing which membrane belongs on the building long-term, start with our system comparison.

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Repair or Replace?

Repair signs: isolated ceiling stains, a failed flashing, localized membrane damage, ponding in one drainage zone, or an energy-bill creep that points to wet insulation. Replacement territory: repairs recurring across multiple zones, widespread moisture in the insulation layer, or a membrane at the end of its service life where each repair buys months instead of years. Our assessment prices both honestly — the repair vs replacement framework shows how we make the call, and when replacement wins, commercial roof replacement is handled by the same team.

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Commercial Roof Repair FAQs

How quickly can you respond to a commercial roof leak?

Active leaks get priority scheduling — call 855-2SUNDRA rather than waiting on a form. The first visit includes temporary protection (tarping, water channeling, sealed penetrations) to stop interior damage while the permanent repair is scoped, and the written assessment follows within 24 to 48 hours.

What does commercial roof repair cost?

Small targeted repairs — a seam, a flashing, a drain — typically run from several hundred to a few thousand dollars depending on damage severity and access. Larger scopes are priced per the written assessment, itemized. Roof size, membrane type, accessibility, and permit requirements move the number; deferred leaks move it most, because water spreads through insulation long before it shows on a ceiling. Inspections are free.

Do you provide documentation for insurance claims?

Yes — photographic documentation, measurements, and a written scope of damage that supports your claim with your carrier. Bring your policy questions to your agent or adjuster; we make sure the roof's condition is documented thoroughly enough that the damage speaks for itself.

Can repairs be done without disrupting business operations?

Yes. Overnight and weekend scheduling, designated staging zones that keep entrances and walkways clear, and interior protection where work happens above occupied space. Property managers and tenants know what's happening before it happens.

How do I know if my roof needs repair or replacement?

Frequency and spread are the tells. One leak at a flashing is a repair. Recurring leaks across zones, saturated insulation, or a membrane past its expected life mean each repair is buying less time — at that point replacement is the cheaper decade. The assessment gives you both numbers in writing, and the recommendation follows the data, not the bigger invoice.

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Get a Repair Inspection

Whether it's an active leak right now or a slow stain you've been watching for a month, the next step is the same: a free inspection with written findings and itemized options.

Request a Repair Inspection

Call 855-2SUNDRA

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We'll walk the property, put what we find in writing, and price your options. No pressure, no obligation.

855-278-6372

801 Bridgeboro Rd, Edgewater Park, NJ 08010

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