Business Details
50+ Years
experience
Emergency
services
Expert HVAC and Plumbing Services in Richardson, TX
4 L Engineering has been a trusted leader in mechanical and plumbing services since 1964, serving the Dallas-Fort Worth Metroplex with unmatched expertise and dedication. Our team of certified technicians and engineers approaches every project from a building envelope perspective, ensuring comprehensive solutions for commercial, multifamily, and industrial facilities. With over six decades of experience, we prioritize integrity, innovation, and excellence in every service we deliver. Our 24/7 emergency support guarantees immediate assistance for critical issues, while our preventative maintenance programs help clients avoid costly disruptions. We invest heavily in training our team to maintain the highest technical and customer service standards, reflecting our core values of community, quality, and long-term value creation.From HVAC systems to plumbing infrastructure, we provide precision engineering and contracting services tailored to meet the unique needs of each client. Our legacy of excellence is built on a commitment to identifying root causes of problems and implementing sustainable, forward-thinking solutions. As a family-focused company, we treat our employees as extensions of our brand, fostering a culture of accountability and continuous improvement. Our partnerships with industry regulators and adherence to state licensing standards underscore our dedication to professionalism and safety. Whether addressing immediate mechanical failures or designing energy-efficient systems, 4 L Engineering remains a reliable partner for clients seeking dependable, high-quality service.
Services
HVAC Installation
Plumbing Repair
Preventative Maintenance
Mechanical Engineering
Emergency Services
Details
- Year established: 1964
Highlights and features
- We offer 60+ years of experience in HVAC and plumbing services.
- Our team provides 24/7 emergency service for critical facility needs.
- We implement an engineering-first approach to system diagnostics and repair.
- Our technicians undergo rigorous technical and customer service training.
- We maintain state licensing and regulatory compliance for all services.
Associations and certifications
- Texas Department of Licensing and Regulation
- Texas State Board of Plumbing Examiners
Services
HVAC Installation
4 L Engineering specializes in precision HVAC system installation for commercial and residential properties. Our certified technicians ensure optimal performance through proper sizing, energy-efficient equipment selection, and adherence to building codes. We provide comprehensive support from design to commissioning, including load analysis and retrofit design for improved system efficiency.
Plumbing Repair
Our plumbing repair services address emergency leaks, pipe failures, and system malfunctions with 24/7 response availability. Technicians utilize advanced diagnostics like camera inspections and pressure testing to identify root causes, offering lasting solutions for residential, commercial, and industrial plumbing infrastructure.
Preventative Maintenance
We implement customized preventative maintenance programs for HVAC, plumbing, and mechanical systems. Services include vibration analysis, refrigerant testing, and equipment inspections to extend system lifespan, reduce energy costs, and prevent unexpected breakdowns through proactive care.
Mechanical Engineering
Our engineering team provides consulting services for mechanical system optimization and new installations. Capabilities include load analysis, energy efficiency evaluations, and expert testimony for complex projects requiring specialized technical solutions and code compliance expertise.
Emergency Services
4-L offers round-the-clock emergency response for critical mechanical and plumbing failures. Our trained technicians address urgent issues like burst pipes, HVAC shutdowns, and system leaks with rapid dispatch and immediate repair solutions to minimize operational disruptions.
People
Charles L. Hansford
Chief Engineer
With decades of industry experience, Charles leads engineering operations at 4-L, ensuring technical excellence and adherence to quality standards across all projects.
Dustin Hansford
President & COO
Dustin oversees daily operations and strategic growth at 4-L, leveraging his extensive HVAC and plumbing expertise to maintain the company's legacy of service excellence.
Mike Youngkin
CFO/CIO
Mike manages financial and technology operations at 4-L, ensuring efficient resource allocation and implementation of innovative systems to support business growth.
Chuck Womack
Project Manager
Chuck coordinates complex projects at 4-L, applying his technical knowledge to ensure timely execution and client satisfaction for mechanical and plumbing installations.
Charles Womack
Master Plumber
As a licensed Master Plumber, Charles oversees all plumbing operations at 4-L, ensuring compliance with state regulations and delivering high-quality solutions to clients.
Questions
What HVAC services does 4-L Engineering offer?
We provide complete HVAC installation, repair, and preventative maintenance services for residential, commercial, and industrial clients in the Dallas area.
Do you offer emergency plumbing services?
Yes, our team provides 24/7 emergency plumbing repair services for urgent issues like leaks, pipe bursts, and system failures.
How long has 4-L been in business?
We've served Dallas-Fort Worth clients since 1964, providing over 60 years of mechanical and plumbing expertise.
What areas do you service?
We primarily serve the Dallas-Fort Worth Metroplex, including Richardson, TX where our headquarters is located.
Are your technicians licensed and trained?
Yes, all our technicians undergo rigorous training and hold required certifications through the Texas Department of Licensing and Regulation.
How can I request service?
Call us at (972) 276-5088 during office hours or use our online service portal for 24/7 emergency requests.
