Setting the Standard in AZ Roofing Since 1993
We Keep Your Flat Roof Strong with Professional Repairs
Lyons Roofing provides commercial flat roof repair services in Phoenix and Tucson, AZ, resolving ponding water damage, seam failures, drain blockages, membrane blistering, and flashing separations that compromise building performance. Flat roofs are the standard for commercial construction in Arizona but are vulnerable to drainage problems and UV surface degradation under the intense desert sun. Our crews evaluate drainage flow, coating condition, and seam integrity across the full roof field before recommending repair scope. Work is performed under AZ ROC# 348074 with full bonding and insurance, and every commercial flat roof repair is documented for property owner and insurance records. Lyons Roofing is BBB A+ accredited in both Phoenix and Tucson, providing consistent standards across both service areas. Call 602-638-3135 (Phoenix) or 520-900-1442 (Tucson) for a free commercial flat roof inspection.
Flat roofs are a common choice for commercial buildings because they’re durable and cost-effective. But with time, even the most well-installed flat roofs may develop problems such as leaks, ponding water, and damage to the membrane.
For years, Lyons Roofing has been the foremost expert in effectively handling these repairs, offering solutions that not only extend your roof’s life but further protect your business from water damage. Our highly trained commercial roof repair contractors in Phoenix, Tucson, AZ and Surrounding Areas work on every type of repair for flat roofs: minor fixes to major work, all with the aim of returning your roof to its best possible condition.
With over 30 years of experience, Lyons Roofing is a trusted name for flat roof repairs. We know the challenges that come with flat roofs and how to address them.
“I had used Lyons Roofing for years for commercial projects… They get in and get the job done, and when they give you a warranty, you know they stand behind it.” — Mary Schmit
Every repair project begins with a thorough roof inspection conducted by our experienced Commercial Project Specialist Team. We assess the condition of your foam roof, looking for signs of damage such as cracks, blisters, pest infestation or areas where the foam or coating has deteriorated. This detailed inspection allows us to develop a targeted repair plan that addresses all issues.
Before any repair work begins, our team conducts a full inspection. We check for all issues, from minor leaks to potential problems with the roof deck, pipe jacks/penetrations, drainage at scuppers and downspouts. Nothing is missed.
We always use the highest quality materials to guarantee that our repairs are durable. From recoating to minor repair to reroofing, we will never use substandard materials so you can depend on the success of the roof project and rely on the quality of our work.
We completely understand how a roofing issue can impact the operation of a business for you as a business owner or for your tenants as a building landlord or property manager. We do our best to inspect your roof as quickly as possible and to share our findings and recommendations in an expedient manner. We partner with you to keep your staff/tenants and your business safe under your building’s roof.
Licensed, Bonded & Insured Guarantee & Warranty on all Work & Materials 30+ Years of Industry Experience Manufacturer Certified Installers in all Roof Types 5-Star Customer Reviews You’ll find that our initial phone call with you is designed to ascertain as many details and concerns about the building and roof that you have. Any previous roof work history about your roof is important to share with us. Once our Commercial Team inspects your roof, you will be provided with a very detailed and organized report/proposal with specific findings, photos and recommendations. We call this our “storybook” because it truly does tell the story about what’s happening with the roof and includes the various options you might have for a great ending to your roofing project!
Lyons Roofing strongly believes in keeping up-to-date with new and improved roofing practices and methods and we are aware of added and revised Arizona Building Codes as they occur. We want our clients to feel that Lyons Roofing puts the “expert” in expertise!
Upon completion of your repair work, a final inspection is conducted, and pictures are taken which are added to your account. For those repairs that carry a Lyons Roofing warranty, you will be provided with a written warranty document for your records.
Planning for regularly scheduled maintenance of your roof is essential for early identification of potential problems. We recommend that you contract with Lyons Roofing to clean, inspect and repair sealants on your roof at least once per year. More complex and larger roofs would benefit from this service semi-annually or even quarterly. When we are cleaning your roof, we watch closely for any issues such as pest and rodent infiltration, clogged scuppers and downspouts, delaminated and cracked coating – any of these can permit water intrusion through the roof. Early detection gives your roof the best possible chance to have an extended serviceable life.
To extend the life of your foam roof, we recommend regular maintenance and inspections. Our maintenance services help identify potential issues before they become major problems, ensuring your roof remains in top condition and continues to provide superior protection.
“Lyons Roofing has been our trusted partner for years, always delivering on time and within budget.” — Mary Schmit
“They don’t fiddle around. They get in and get the job done… They stuck to the schedule and did a great job.” — Clare Mantelman
“Lyons Roofing has been an awesome experience from start to finish! I had some challenging areas, and they made it look so nice.” — Eric Calvert
“They were very good at communicating, and we will always use them!” — Mashayla O’Malley
Let Lyons Roofing repair your building’s flat roof professionally in Phoenix, Tucson, AZ and Surrounding Areas. Reach out to us for a free inspection and recommendations on what it will take to repair your flat roof.
Our team of dedicated professionals can handle any roofing issue you have. You can be confident that your commercial roof is being worked on by a roofing company with a well-respected reputation for excellent service.
Best of Houzz Service Award – Repeated Winner
Recognizing professionals with rave-worthy customer service within their respective industry according to their Houzz rating and client reviews.
Angi’s Super Service Award – Repeated Winner
Awarded to top-rated service professionals in the Angi network since 1999, the Super Service Award recognizes pros who exemplify exceptional quality, service, and value to their customers.
Rosie on the House – Certified Partner
Rosie on the House is Arizona’s most trusted source of home-improvement contractors. A Rosie-certified partner is one you can count on to be honest, fair, knowledgeable and highly skilled.
BBB Ethics Award Winner
It is very important that we generate high level of trust amongst not only our employees but our customers and community as well. We were recognized for this by the Better Business Bureau.
In Top 5% of Safest Companies
We are one of the few roofing companies in Arizona that has a full-time Safety Director who continually monitors the companies’ compliance with all State and Federal safety requirements.
ARCA Contractor of the Year – Past Winner
Recognizing individuals and companies for their commitment to excellence within the roofing industry and their commitment to their employees and customers.
Top 10 Ranking Arizona – Multiple Years
The largest business opinion poll in Arizona, ranking the top performing companies in their respective industry based on customer service, experience and satisfaction.
Companies to Watch Award
Recognizing companies that implement core growth strategies within a respective industry that comprise a critical, often overlooked, driver of the state’s economy.
Licensed and bonded, our roofing contractors combine the latest technology, highest quality materials, and most advanced techniques with decades of industry-leading, client-recommended service.
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Your Questions About Flat Roof Repairs Answered:
Lyons Roofing repairs commercial flat roofs throughout Phoenix and Tucson, addressing membrane seam separations, ponding water damage, drain and scupper blockages and failures, flashing deterioration at parapet walls and penetrations, UV coating breakdown on elastomeric and foam systems, blistering and bubbling, modified bitumen failures, and rooftop equipment wear zones. We treat the full flat roof system rather than isolated visible damage.
Commercial flat roofs in Arizona face a combination of stresses that are more intense than in most US markets. Surface temperatures on flat commercial roofs regularly exceed 180 degrees Fahrenheit in summer, which fatigues seams and flashing sealants through repeated thermal expansion cycles. UV radiation degrades elastomeric coatings and membrane surfaces continuously. Monsoon events then deliver concentrated rainfall that tests drainage capacity and exposes any seam or flashing weaknesses developed during the dry season.
Standing water on a commercial flat roof exerts hydrostatic pressure on seams, accelerates coating degradation in contact zones, deposits mineral salts as it evaporates that attack membrane surfaces, promotes biological growth that further degrades roofing materials, and adds structural load to the building. Arizona monsoon events can leave significant standing water on inadequately drained flat roofs. Lyons Roofing addresses both the drainage system deficiency and the membrane damage caused by chronic ponding.
Yes. All Lyons Roofing commercial flat roof repairs are performed under AZ ROC# 348074 with commercial bonding and insurance coverage. Our flat roof repair crews are trained across the membrane and coating systems most common in Arizona commercial construction, including modified bitumen, TPO, elastomeric coatings, and spray foam. License verification is available at roc.az.gov before scheduling.
Lyons Roofing repairs modified bitumen torch-down and cold-applied systems, TPO and PVC single-ply membranes, built-up roofing, elastomeric coating systems over concrete and metal decks, and spray polyurethane foam with protective coatings. Each system requires specific repair materials and methods to maintain compatibility and ensure adhesion. Using the wrong repair material is a leading cause of early repair failure on commercial flat roofs.
Seam repair on commercial flat roofs involves cleaning the separation area, removing any failed adhesive or sealant, applying compatible primer where required by the system specification, and heat-welding, solvent-welding, or cold-adhesive bonding the seam with compatible material. A reinforcing strip is applied over the repair where additional mechanical strength is needed. Lyons Roofing checks adhesion after the repair and photographs completed work for the property record.
Yes. Drain and scupper repair is a standard component of Lyons Roofing commercial flat roof service. We clear blocked interior drains and exterior scuppers, replace corroded or damaged drain hardware, repair the membrane around drain penetrations where water concentration causes accelerated wear, and evaluate whether the existing drain layout provides adequate capacity for Arizona monsoon rainfall. Poorly performing drainage is often the root cause of flat roof membrane failure.
Flat roof repair is appropriate when the membrane is structurally sound in most areas, damage is concentrated in specific zones, and the insulation beneath has not sustained widespread moisture damage. Replacement is indicated when the membrane has widespread adhesion failure, when insulation moisture saturation covers a significant portion of the roof field, or when accumulated repairs have reached a threshold where a new system offers better long-term value. Lyons Roofing presents both options with documented reasoning during the assessment.
Yes. Lyons Roofing has repaired flat roofs on large commercial and industrial buildings throughout Phoenix and Tucson, including warehouses, manufacturing facilities, and distribution centers with extensive flat roof fields. Large commercial flat roof repairs involve specific project management for material staging, phased work sequencing, and coordination with building operations. Drone assessment is available for initial condition documentation on large roof fields.
Commercial flat roof repair in Arizona’s summer heat requires scheduling work in early morning hours when surface temperatures are lower, using heat-resistant personal protective equipment, implementing crew rotation and hydration protocols, and selecting repair materials rated for high-temperature application. Our full-time Safety Director monitors heat-related safety compliance across all summer commercial projects. Most flat roof repair work can be completed effectively year-round with appropriate scheduling.
Commercial flat roof flashing failures in Arizona result primarily from UV degradation of sealants and flexible membrane termination material, thermal cycling that causes metal base flashings to fatigue at fastener points, wind pressure that lifts parapet flashing terminations, and physical displacement of equipment curb flashings from vibration and service activity. Arizona’s combination of daily thermal cycling and intense UV degrades flashing systems faster than in most US climates.
Yes. Solar panel mounting systems create multiple penetrations in commercial flat roofs that require specific flashing attention. Lyons Roofing repairs flashing and membrane conditions around solar mounting hardware, addresses the roof surfaces beneath and around panel arrays where UV exposure and water channeling differ from open sections, and coordinates with solar contractors for any repairs that require panel access. We document solar penetration conditions as part of every flat roof inspection.
Lyons Roofing assesses hidden moisture in commercial flat roofs through systematic inspection of surface conditions indicating moisture movement, probing of suspect soft areas, and review of interior staining and ceiling damage patterns. For large roof fields where moisture mapping is needed, we recommend infrared thermal scanning or nuclear moisture detection as additional diagnostic tools. The repair scope accounts for both the surface membrane repair and the affected insulation beneath.
Elastomeric coating repair involves addressing specific failures in the protective coating layer on commercial flat or foam roof systems, including blistering, peeling, crazing, and areas where the coating has thinned to below effective waterproofing thickness. Lyons Roofing prepares the affected area, removes failed coating material, primes if required, and applies compatible replacement coating to restore the protective layer. Area repairs are blended to the surrounding coating surface to maintain waterproofing continuity.
Yes. Lyons Roofing has repaired flat roofing on multi-tenant retail centers throughout Phoenix and Tucson. Retail flat roof repair requires coordinating work above occupied tenant spaces, protecting tenant merchandise and equipment from debris or water during the repair process, and minimizing disruption to retail operations. Our project managers develop work plans that sequence repairs above vacant bays or during overnight and weekend windows where operational requirements allow.
Before performing repair work on a commercial flat roof under an active manufacturer or contractor warranty, Lyons Roofing advises property owners to review warranty terms regarding repair authorization. As a GAF-certified contractor, Lyons Roofing can perform qualifying work on GAF-warranted systems. For other manufacturer systems, we help property managers understand their warranty rights and obligations before proceeding with any repair.
Commercial flat roof repair requires OSHA-compliant fall protection at all roof edges, including guardrail systems, personal fall arrest systems, or safety monitoring systems appropriate for the specific edge conditions and repair scope. Equipment inspection, overhead protection for building occupants below active work, and daily safety briefings are also required. Lyons Roofing’s full-time Safety Director ensures these standards are applied consistently on every commercial flat roof project.
A localized commercial flat roof repair addressing a specific seam separation, drain failure, or flashing area can typically be completed in a single day. Larger repairs covering significant portions of the roof field or requiring drainage system modifications may take multiple days. Projects requiring permit approval extend the total timeline. Lyons Roofing provides a project-specific timeline in the written estimate so property managers can plan accordingly.
Yes. Lyons Roofing provides 24-hour emergency response for commercial flat roof leaks that threaten building operations, inventory, or tenant safety. Emergency crews carry tarping materials and can provide immediate weather protection while permanent repair is coordinated. Call 602-638-3135 in Phoenix or 520-900-1442 in Tucson any time for emergency commercial flat roof assistance. Contracted maintenance clients receive priority emergency scheduling.
HVAC curb flashings and equipment pads on commercial flat roofs receive specific inspection and repair attention because they concentrate foot traffic, vibration, and condensation discharge that create localized wear. Lyons Roofing repairs flashing at all HVAC curbs, addresses condensation line drainage issues, inspects and repairs the membrane in high-traffic service pathways, and installs walk pad protection in routes that will continue to receive regular service access.
The most effective maintenance for Arizona commercial flat roofs is twice-yearly inspection, pre- and post-monsoon, combined with immediate drain clearing, prompt response to any identified seam or flashing conditions, and scheduled recoating of elastomeric and foam systems on manufacturer-recommended intervals. Lyons Roofing maintenance programs provide this systematic care for commercial clients throughout Phoenix and Tucson.
Yes. Commercial flat roofs with extensive previous patching often have compatibility issues between repair generations and may show systematic failure patterns rather than isolated new damage. Lyons Roofing assesses the cumulative repair history and advises whether targeted additional repair, a broader membrane repair, or full system replacement offers the best long-term value. We present options with clear cost and performance comparisons.
Yes. Lyons Roofing provides a workmanship guarantee on all commercial flat roof repairs. If repair work fails due to the application method or material selection rather than a new event, we return to correct it. Our commercial repair guarantee is backed by a BBB A+ accreditation in both Phoenix and Tucson, ARCA Contractor of the Year recognition, and a documented record since 1993.
Call 602-638-3135 for Phoenix area properties or 520-900-1442 for Tucson area properties to schedule a free commercial flat roof repair assessment. A Lyons Roofing commercial project manager visits your property, evaluates the membrane system and current conditions, and provides a written estimate with repair scope and timeline. Emergency visits are available around the clock.
Lyons Roofing has repaired commercial flat roofs in Arizona since 1993, developing expertise specific to the membrane and coating systems used in Phoenix and Tucson commercial construction. We are licensed under AZ ROC# 348074, BBB A+ accredited in both cities, GAF certified, and ARCA Contractor of the Year. All commercial flat roof repairs are documented, photographed, and backed by a workmanship guarantee.
After completing commercial flat roof repairs, Lyons Roofing provides a condition report that includes recommendations for preventive maintenance, recoating scheduling for elastomeric systems, drainage improvements where capacity is marginal, and walk pad installation in high-traffic areas. Enrolling in a Lyons Roofing maintenance program after repair provides the scheduled follow-up needed to catch developing conditions before they require emergency response.
Yes. Rooftop access hatches and walkway areas are among the highest-wear zones on commercial flat roofs. Lyons Roofing inspects and repairs the membrane and flashing around access hatch frames, curbs, and the approach areas where foot traffic concentrates. Walk pad installation at these locations is recommended during repair work to protect the membrane from ongoing access traffic.
Yes. After completing commercial flat roof repairs, Lyons Roofing can propose a multi-year maintenance program that schedules follow-up inspections, recoating milestones for elastomeric systems, and drain maintenance visits to protect the repair investment. Multi-year maintenance programs give commercial property managers predictable roofing costs and ensure the repaired system receives the ongoing attention needed to achieve its full service life.
Yes. Commercial flat roofs on restaurant and food service properties require specific attention to grease exhaust flashing compatibility, where standard elastomeric sealants can degrade from grease contact. Lyons Roofing selects repair materials appropriate for grease exposure zones and inspects kitchen ventilation penetrations as a priority item during every restaurant property flat roof assessment. We are familiar with the specific repair requirements of food service commercial properties throughout Phoenix and Tucson.
Commercial flat roof repairs can be performed effectively year-round in Arizona. Spring is the preferred time for proactive work because it allows any identified conditions to be corrected before monsoon season. Post-monsoon fall visits address storm-related damage before the winter period. Emergency repairs are performed any time conditions require immediate response. Lyons Roofing schedules commercial flat roof work throughout the year based on client priority and urgency.
