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Roof replacements


The Sullivan Group will replace your existing building roof using quality materials and careful workmanship. We are certified installers for most manufacturers, and manufacturers’ warranties apply. We work with all roof types, including:

  • Thermoplastic polyolefin (TPO) single-ply roofs
  • Built-up roofs of all kinds, including hot-mop, Cap Sheet, gravel, and torch-down
  • Tile roofs

Preventive maintenance


Our comprehensive preventive maintenance program helps you manage your roof and avoid roofing emergencies. After each visit, you receive a detailed written report and photographs, including the following:

  • What we did during each visit
  • Our observations of your roof’s condition
  • Our recommendations to extend the life of your roof
  • Alternative approaches, including cost projections, so you can select and budget accordingly

Tenant improvements


When you make upgrades to meet your tenants’ needs, you need a reliable roofer to ensure your roof remains in tip-top, waterproof condition. We provide excellent service and turnaround on all tenant upgrades that affect your roof.

Strategies to extend the life of your roof


We do a thorough inspection and recommend repairs, waterproofing, coatings, and upgrades to extend the life of your roof, including Title 24-mandated coatings to meet state requirements for energy efficiency in office spaces.

Emergency repairs and service calls


Your roof may not leak during business hours, so we’re here when you need us. Email us or call 510-535-2580, whether you need emergency or routine service.

Ready to learn more?

Contact us for more information and/or a free estimate.

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