M&J Insulation and Firestop LLC is a professional insulation installation company based in Durham, North Carolina, serving homeowners, builders, and contractors with dependable insulation and firestop services for residential construction, remodeling projects, and energy-efficiency improvements.
We deliver practical, professional solutions that improve indoor comfort, support energy performance, and contribute to safer buildings through carefully installed insulation and firestop systems.
M&J Insulation and Firestop LLC specializes in high-quality insulation and firestop installation for residential projects. We work with homeowners, builders, and contractors who need dependable service, proper installation, and work completed to professional standards.
The company is owned and operated by Olawale Adesioye, who brings over 10 years of experience in the insulation and construction industry. His background includes new residential construction, renovation work, and insulation upgrades for existing homes.
That experience helps us approach every job with attention to detail, practical job-site understanding, and a commitment to delivering insulation solutions that improve comfort, efficiency, and long-term value.
Installed in walls, ceilings, and floors to improve thermal performance and reduce energy loss.
Helps reduce heat loss and supports better indoor comfort throughout the year.
Improves temperature control, comfort, and overall efficiency in lower-level spaces.
Helps reduce the spread of fire through penetrations and structural openings.
Installed according to project requirements for dependable long-term performance.
More than 10 years of hands-on insulation and construction experience.
We focus on proper installation methods that support comfort and efficiency.
We work professionally with homeowners, contractors, and builders.
Our work supports safer structures and better energy performance.
We begin by discussing the project scope, insulation requirements, and expected timeline.
We assess the site, determine insulation needs, and identify the materials required.
A clear estimate is provided covering labor, materials, and scope of work.
Our team completes the work carefully and according to professional standards.
We review the completed installation to ensure quality and proper execution.
The project is finalized with customer satisfaction and quality delivery as the priority.
If your project is located outside these areas, please contact us to discuss availability. We can travel up to 50 miles from Durham, NC.
We provide dependable insulation and firestop installation services with the workmanship, professionalism, and attention to detail your project deserves.