Business Details
22 Years
experience
Emergency
services
Your Trusted Commercial Construction Partner in Fullerton, CA
Excel Construction Services is an owner-managed company dedicated to delivering comprehensive commercial construction and facility maintenance solutions. Founded in 2004, we serve clients across California, Arizona, and Nevada with a commitment to exceeding expectations through sound business practices and innovative approaches. Our services span emergency response, repair and maintenance, capital projects, and turnkey project management, supported by company-owned equipment and a self-performing model that ensures tight control over quality, safety, and communication. With over 30 years of combined industry experience, our team prioritizes long-term relationships built on trust, transparency, and ethical standards.We specialize in cost-effective solutions for multi-branch projects, from simple repairs to large-scale improvements, while maintaining a focus on customer satisfaction as our most valuable asset. Our Six Sigma processes drive continuous improvement, and our WBENC certification underscores our commitment to supplier diversity. As a licensed general contractor in three states, we combine technical expertise with a proactive, solution-driven mindset to address client needs efficiently and effectively.
Services
Emergency Response
Repair & Maintenance
Capital Projects
Managed Services
Asphalt Resurfacing
Details
- Year established: 2004
Highlights and features
- We offer 30+ years of commercial construction experience with licensed operations in three states.
- Our 24/7 emergency response team ensures immediate dispatch and frequent progress updates.
- 95% of services are performed in-house for tighter project control and cost efficiency.
- Six Sigma processes drive continuous improvement in our construction and maintenance solutions.
- WBENC-certified woman-owned business meeting supplier diversity goals for clients.
Associations and certifications
- WBENC
What people say
Prompt and cost effective
Prioritizes customer experience
Reliable and available resources
Sound business practices
Positive results
Services
Emergency Response
Our 24/7 emergency response team provides immediate dispatch for commercial crises, including water extraction, plumbing repairs, board-ups, and security barrier installations. With live operators coordinating progress updates, we address urgent needs like asbestos abatement, electrical outages, and structural damage restoration. Our rapid deployment ensures minimal business disruption while maintaining safety and compliance standards.
Capital Projects
We manage multi-branch construction projects from planning to completion, offering asphalt resurfacing, HVAC installations, ADA upgrades, and bandit barrier construction. Our company-owned equipment and in-house expertise handle complex tasks like structural engineering, hazardous waste remediation, and high-voltage electrical work. Clients benefit from streamlined communication and cost controls for projects ranging from interior renovations to ground-up construction.
Managed Services
Our turnkey project management covers planning, engineering, and execution for commercial improvements. Services include ADA modifications, HVAC system installations, and security barrier design. By self-performing 95% of work, we maintain quality control over timelines, budgets, and safety protocols. This model ensures seamless integration of subcontractors when required for specialized tasks.
Repair & Maintenance
We deliver cost-effective repair programs for commercial properties, including plumbing, electrical work, flooring repairs, and HVAC maintenance. Our team collaborates with property managers to prioritize preventive care and urgent fixes, covering tasks like carpet replacement, concrete grinding, and security system upgrades. Regular service agreements help clients avoid costly emergency interventions.
Asphalt Resurfacing
Specializing in commercial asphalt work, we provide resurfacing, seal coating, and striping services for parking lots and roadways. Our crews handle crack sealing, pothole repairs, and full-depth pavement restoration using industry-grade materials. Clients receive durable, code-compliant surfaces that enhance property aesthetics while extending infrastructure lifespan through proactive maintenance plans.
People
Karen Ratzlaff
Owner/CEO
Karen Ratzlaff founded Excel Construction Services after 20+ years in construction roles including project manager and operations administrator. She holds general contractor licenses in three states and specializes in finance, accounting, and commercial project management. Her hands-on experience spans tenant improvements, nonprofit facility expansions, and large-scale capital projects.
Questions
What commercial construction services do you offer?
We provide emergency response, repair programs, capital projects, and managed services including asphalt resurfacing, HVAC installations, and ADA upgrades.
Are you available for 24/7 emergency repairs?
Yes, our crisis response team operates 24 hours a day with immediate dispatch for water damage, security breaches, electrical failures, and structural emergencies.
Is your company certified for supplier diversity programs?
We are WBENC-certified as a woman-owned business meeting 51% ownership and management requirements for supplier diversity compliance.
How do you manage large multi-branch projects?
Our self-performing model handles 95% of work in-house, with company-owned equipment and Six Sigma processes ensuring quality control across all project phases.
Which states do you serve?
We operate in California, Arizona, and Nevada with licensed contractors and regional offices for rapid client response.
What client testimonials highlight your strengths?
Clients emphasize our reliability, transparent communication, and ability to deliver complex projects on time while maintaining strict safety standards.
