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Business Details
36 Years
experience
Professional Roofing Services Stanislaus County
SJ Company has been a trusted name in roofing services for over 25 years, founded by Carl Leslie and continued by Justin Spence and Buddy Rhodes. Our family-owned business takes pride in delivering durable, innovative solutions to a diverse clientele, including local shopping centers, school districts, real estate managers, Stanislaus County, hospitals, and private homeowners. Specializing in cold process roofing systems and metal roof sealing, we exclusively use the Western Colloid roofing system, ensuring a ten-year warranty on all labor and materials. Our commitment to quality extends beyond initial installation, offering a unique rewarranty program that extends roof life at reduced rates.

With hands-on experience from the ground up and a focus on repeat clients, we combine technical expertise with personalized service. Our fluid-applied reinforced roofing systems provide energy-efficient, cost-effective solutions that meet California Title 24 requirements while minimizing environmental impact. Backed by a 25+ year track record, we prioritize seamless installations, reflective coatings for energy savings, and maintenance programs that maximize roof longevity. Our team remains present on all job sites, ensuring every project meets our high standards of craftsmanship and customer satisfaction.
Services
Cold Process Roofing Metal Roof Sealing Roof Maintenance Reflective Coating Rewarranty Program
Details
  • Year established: 1990
Highlights and features
  • 25+ years of specialized roofing expertise in Central Valley conditions
  • Exclusive use of Western Colloid roofing systems with proven performance
  • Hands-on owner management ensures quality control on every project
  • Unique ten-year rewarranty program extends roof lifespan cost-effectively
  • Energy-efficient reflective coatings meet California Title 24 requirements
Services
Cold Process Roofing
Our cold process roofing system eliminates hot asphalt application risks while maintaining durability. This seamless solution bonds directly to existing surfaces, reducing installation time by 40% compared to traditional methods. Ideal for commercial buildings seeking immediate energy savings through reflective coatings.
Metal Roof Sealing
Specialized sealing process prevents corrosion and leaks in metal roofing systems. We apply reinforced emulsions that expand/contract with metal surfaces, extending roof life by 15+ years. Maintains structural integrity while improving thermal efficiency through reflective topcoats.
Roof Rewarranty
Ten-year warranty extension program includes comprehensive maintenance. Our process involves surface cleaning, targeted repairs, and application of 5 gallons/sq Western Colloid emulsion. Clients receive renewed protection at 66% savings compared to full replacement costs.
Reflective Coating
Energy-efficient coating system reduces building temperatures by 50F+ in summer conditions. Meets ENERGY STAR requirements with 85% solar reflectance. Lowers cooling costs up to 30% while extending roof membrane lifespan through UV protection.
Roof Maintenance
Customized maintenance plans prevent emergency repairs through biannual inspections. Our technicians identify and address minor issues before they escalate, using compatible materials that maintain warranty validity across all roofing systems we service.
People
Justin Spence
Owner
With 30+ years in the roofing industry since high school, Justin oversees all operations. His hands-on experience ensures quality control across projects ranging from small repairs to large commercial installations in Central Valley conditions.
Buddy Rhodes
Owner
Joined in 1990, Buddy brings specialized expertise in metal roof systems. He manages technical aspects of installations and rewarranty programs, maintaining the company's reputation for innovative solutions in Stanislaus County's commercial roofing market.
Questions
What makes your cold process roofing different from traditional methods?
Our system eliminates hot asphalt application, reducing fire risk and fumes. It bonds directly to existing surfaces, cutting installation time by 40% while maintaining durability comparable to conventional built-up roofs.
How does your rewarranty program work?
After the initial ten-year warranty expires, we clean, patch, and reapply 5 gallons/sq Western Colloid emulsion. This extends protection for another decade at 66% of original installation costs, with no tear-off required.
Can you work on existing roofs?
Yes, our fluid-applied systems work over BUR, modified bitumen, single ply, and metal roofs. This avoids costly tear-offs, reduces landfill waste by 90%, and maintains building operations during installation.
Do your coatings meet energy efficiency standards?
Our reflective coatings exceed California Title 24 requirements with 85% solar reflectance. They qualify for energy rebates in air-conditioned buildings and reduce cooling costs up to 30% through thermal management.
What areas do you service?
We operate throughout Central Valley including Stanislaus, Merced, San Joaquin, Sacramento, and Calaveras Counties. Our team handles projects from Modesto to Stockton, with 25+ years of local climate expertise.