Water is entering the building right now
Our National Service Center is staffed 24/7/365. One call activates triage and dispatch to the nearest certified crew.
SERVICES / REPAIR
Commercial Roof Repair Services
Keep the building open and the warranty intact. Certified crews repair every major commercial roof system to manufacturer spec, dispatched from 40+ branches nationwide.
Free Inspections — request an estimate, no obligation.Trusted by the teams behind national portfolios
What Best Describes Your Situation?
Something is wrong and I want it assessed before it gets worse
A certified technician will inspect the condition, document the cause with photographs, and give you repair options with costs before any work begins.
WHAT ARE YOU SEEING
Start With the Symptom
Ceiling stains do not keep facility managers up at night. Tenant complaints, surprise capital requests, and a denied warranty claim do. The conditions below are where those three things start.
Issue Found
Ceiling Stains & Wet Tiles
Water is already inside and tracking laterally. The stain is rarely under the actual entry point.
Issue Found
Standing Water & Clogged Drains
Ponding adds dead load and quietly breaks down the membrane while blocked drains keep it there.
Issue Found
Membrane Blisters & Bubbles
Trapped moisture or vapor beneath the membrane. A blister that opens becomes an entry point.
Issue Found
Seams Lifting Open
Adhesive or weld failure from age and thermal cycling. An open seam is a direct path to the deck.
Issue Found
Lifted or Loose Edge Metal
Compromised edge attachment is both a leak path and a liability if a section releases in wind.
Issue Found
Patches That Keep Failing
A recurring patch is treating a symptom the original repair never diagnosed.
Seeing one of these on your building?
A Nations Roof technician gets on the roof, documents the actual source, and gives you a straight answer on repair versus replacement.
Systems We Repair
Every commercial roof system fails in its own way. Knowing where a given assembly gives out first is what separates a diagnosis from a guess.
TPO
Thermoplastic Polyolefin
Fails First At
Seam welds, flashing at penetrations, punctures from foot traffic
Common Repairs
Learn more
Reweld seams, membrane patches, rebuilt penetration flashings
EPDM
Ethylene Propylene Diene Monomer
Fails First At
Seam tape adhesion, shrinkage pulling at perimeter details, pitch pans
Common Repairs
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Reseam with cover tape, restore pitch pans, relieve bridged perimeters
PVC
Polyvinyl Chloride
Fails First At
Plasticizer loss and embrittlement with age, weld separation
Common Repairs
Learn more
Reweld separations, patch with compatible membrane
Modified Bitumen
Mod-Bit
Fails First At
Lap seams, granule loss, blistering at the interply
Common Repairs
Learn more
Lap seam repairs, blister cut-and-patch, protective resurfacing
Built-Up (BUR)
Built-Up Roofing
Fails First At
Alligatoring of the surfacing, flashing at curbs, ponding damage
Common Repairs
Learn more
Flood coat renewal, curb flashing rebuilds, drainage correction
Metal
Metal Roofing
Fails First At
Fastener backout, seam leaks, panel end laps, corrosion at penetrations
Common Repairs
Learn more
Fastener reset and upsizing, seam sealing, panel replacement, coatings
Spray Polyurethane Foam
SPF
Fails First At
Coating wear, UV degradation, mechanical damage to the foam
Common Repairs
Recoat worn areas, foam patching at damage
What to Expect
Here's what happens after you request a site visit / inspection.
Ready to plan your roof repair?
Request a Free Inspection
STEP 01
You reach out. We handle the rest.
FROM THE FIELD
What Diagnosis Looks Like on a Real Roof
VIDEO PLACEHOLDER
Ponding and blocked drainage at a roof drain
VIDEO PLACEHOLDER
A patch that keeps failing
VIDEO PLACEHOLDER
Deck damage traced from below
VIDEO PLACEHOLDER
Tracing moisture with thermal imaging
VIDEO PLACEHOLDER
Water testing a suspect detail
DECISION SUPPORT
Is Another Repair the Right Call?
Three repairs in two years usually costs more than one plan.
Nations Roof provides consistent quality, accountability, and national coverage for complex roofing programs.
Proven Safety & Compliance
Proficient in Major Facility Portals
Experienced across the platforms national teams rely on every day.
Certified by All Manufacturers
Approved to install, service, and warranty all major roofing systems.
Familiarity with FM Global Approvals
Experience meeting FM Global standards for insured properties.
Proven Safety & Compliance
Recent Projects
SANTA CLARA, CA
Agilent Technologies
Sunpower T-5 composite framed ballasted PV system installed over Sarnafil PVC single ply membrane.
SANTA CLARA, CA
Bayland
The 31,000 sq ft roof area was replaced using Duro-Last .050 mil fleece backed PVC membrane installed over 1/4 inch Dens Deck.
SAN LEANDRO, CA
Cushman & Wakefield
The 59,400 sq. ft area on the North Building was restored using the WeatherWeld seamless roof system surfaced with a reflective aluminum.
HAYWARD, CA
Davita
The existing capsheet surfaced Built Up Roof was overlaid with EPS Fanfold insulation and Firestone .060 mil polyester reinforced TPO single ply.
SAN JOSE, CA
De Rose Associates
DuroLast 50 mil PVC was installed over the existing built up roof system using EPS fanfold insulation to separate the two systems.
RANCHO CORDOVA, CA
Delta Dental
The existing capsheet surfaced fiberglass Built Up Roof system was installed over gypsum board over a steel deck.
Supporting Facilities Across Every Sector
Our crews have successfully completed projects in all 50 states and across all major facility types.
Warehouse & Distribution
Office & Commercial
Healthcare
Education
Industrial & Manufacturing
Hospitality
Government & Municipal
Logistics & Cold Storage
Frequently Asked Questions
Can you repair a roof system you did not install?
Yes. Nations Roof is certified by all major manufacturers, which means we can repair any commercial roof system without voiding your warranty, even when we were not the original installer.
Will a repair affect my manufacturer warranty?
No. Our crews are manufacturer certified and every repair uses approved materials installed to specification, so existing coverage stays intact. We document each repair against the warranty file.
When should I stop repairing and plan a replacement?
When repair frequency is rising, when moisture has spread through the insulation across a large area, or when the system is near the end of its service life. Our Repair, Re-Roof, or Replace assessment walks through the same four factors our technicians weigh on site.
Will roof repairs disrupt building operations?
We work in occupied, high traffic environments as a matter of routine and schedule around your operations. Crews are briefed on site specific access, noise, and safety requirements before they arrive.
Do you repair TPO, EPDM, PVC, modified bitumen, built up, and metal roofs?
Yes, along with spray polyurethane foam. Each system fails differently, and our technicians diagnose against the assembly in front of them rather than a generic checklist.
What documentation do I receive after a repair?
Photographs, repair detail, materials used, and warranty notes. All records are stored in Nations Portal, giving you repair history and warranty status across every location you manage.
Can you take work orders through our facility management platform?
Yes. We work in ServiceChannel, Corrigo, Building Engines, Emcor, fmPilot, and Ariba, so repair requests reach us the way your team already issues them.
Do you handle multi site portfolios?
Yes. Multi site repair programs run through a dedicated account manager with local branch crews executing, which gives you one point of contact and consistent standards across every location.
Is Nations Roof safe to have on an occupied site?
Our EMR is 0.59, well below the 1.0 industry baseline and inside the threshold most general contractors and insured properties require. We hold an ISNetworld A rating and every job starts with a site specific safety plan.
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Roofing Help?
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Awards & Recognitions
