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Business Details
18 Years
experience
Commercial Door & Window Solutions Southern California
At Mckernan, we bring decades of specialized expertise to commercial door and window solutions across Southern California. Founded in 2008, our company was built on the principle of delivering unmatched quality through in-house labor and direct project management. Our field team, composed of Southern California Carpenters Union members with up to 20+ years of experience, executes every installation with precision honed through public works projects and private sector engagements. We maintain long-standing partnerships with manufacturers to source premium materials while offering design-build capabilities for customized solutions. With a $30M+ project portfolio spanning education, government, aviation, and healthcare sectors, our systematic approach ensures efficiency from procurement to completion.

Our leadership team combines construction industry veterans with financial and operational experts to guarantee compliance, budget adherence, and strategic growth. Headquartered in Redlands with a satellite office in Palm Desert, we serve San Diego, Inland Empire, Coachella Valley, Los Angeles, and Orange County markets. Our Glazing Division expansion in 2016 further strengthened our ability to provide comprehensive building envelope solutions. Through apprenticeship programs and career development initiatives, we cultivate lasting professional relationships that translate to superior client outcomes.
Services
Procurement Design-Builds Modernizations New Construction Glazing Division
Details
  • Year established: 2008
Highlights and features
  • We maintain 100% in-house installation teams with 20+ years' experience
  • Our design-build capabilities integrate with major manufacturers' product lines
  • Specialized expertise in public works modernization projects since 2008
  • Proven track record with $30M+ in completed commercial construction projects
  • Dual office locations serving five Southern California counties
What people say
Skilled installation team Reliable project management Public works expertise Quality material sourcing Long-term partnerships
Services
Procurement
We source commercial door systems through established manufacturer partnerships. Our procurement process ensures access to premium-grade materials while maintaining strict quality control standards. Clients benefit from competitive pricing and reliable delivery schedules for their construction projects.
Design-Builds
Our team manages complete door and hardware installations as single-point responsibility contractors. We coordinate with architects and engineers to deliver customized solutions that meet specific project requirements while maintaining budget and timeline parameters.
Modernizations
We specialize in upgrading existing door systems for enhanced security and functionality. Our expertise includes retrofitting public works facilities with modern access control technologies while maintaining structural integrity and code compliance.
New Construction
Our union-certified crews install complete door systems in new commercial developments. We implement systematic installation processes that ensure precision and efficiency across large-scale projects in education, healthcare, and government sectors.
Glazing Division
Established in 2016, this division provides comprehensive building envelope solutions. We integrate door systems with window and curtain wall installations for cohesive architectural designs in both new construction and renovation projects.
People
Bryan Mckernan
President
Bryan founded Mckernan Construction in 2008 and oversees daily operations. With nearly two decades in construction, he manages project execution and business development while maintaining industry relationships established during market downturns.
Kathy Brewster
Accounting/Human Resources Supervisor
Kathy manages financial reporting and compliance operations with over 20 years' construction industry experience. She ensures labor law adherence and maintains the company's financial infrastructure with meticulous attention to detail.
Celina Lujan
Project Coordinator
Celina coordinates procurement timelines and labor allocation with 15 years' construction financial services experience. She supports strategic planning while managing project logistics for efficient execution of commercial installations.
Questions
What commercial door services do you offer?
We provide procurement, design-build, modernization, and new construction services for commercial doors, frames, and hardware systems.
Do you handle large-scale projects?
Yes, our $30M+ project portfolio includes education, government, aviation, and healthcare facilities across Southern California.
Are your installers certified professionals?
Our field team consists of Southern California Carpenters Union members with 20+ years' average experience in commercial installations.
What areas do you serve?
We operate throughout San Diego, Inland Empire, Coachella Valley, Los Angeles, and Orange County markets.
Can you handle specialized modernization projects?
Yes, we specialize in upgrading security systems for public works facilities while maintaining structural integrity and code compliance.
How do you ensure project quality?
We maintain direct oversight through in-house labor teams and implement systematic quality control processes from procurement to completion.