Business Details
16 Years
experience
Emergency
services
Your Trusted HVAC Partner in Bay Area
MDB SAME DAY HVAC has been serving the Bay Area for over 25 years, delivering comprehensive heating, ventilation, and air conditioning solutions to residential and commercial clients. Our team of certified technicians specializes in HVAC installation, repair, maintenance, and duct cleaning, prioritizing customer satisfaction through reliable service and industry-leading warranties. We offer same-day emergency services across Antioch, Brentwood, Concord, Walnut Creek, and surrounding communities, backed by a 10-year installation warranty and a one-year service warranty.Our commitment to quality workmanship, transparent communication, and ongoing technician training ensures clients receive efficient, durable solutions tailored to their specific needs. With 4,000+ completed projects and a focus on modern repair techniques, we maintain a reputation for technical expertise and prompt, dependable service.
Services
HVAC Installation
Duct Work
Duct Cleaning
Air Conditioning
Heating Repair
Thermostat Installation
HVAC Maintenance
Furnace Repair
Heat Pump Services
Emergency HVAC
Details
- Year established: 2010
Highlights and features
- 25+ years of HVAC experience with 4,000+ completed projects
- 10-year installation warranty exceeding industry standards
- Same-day emergency service available 24/7
- Factory-trained technicians with ongoing professional development
- Serving 15+ Bay Area cities including Concord and Walnut Creek
What people say
Price was very fair
Arrived on time
Polite employees
Thorough explanations
Effective emergency service
Services
HVAC Installation
Our certified technicians install complete HVAC systems with precision, ensuring optimal performance and energy efficiency. We handle all components including furnaces, air handlers, and ductwork, following strict industry standards to prevent future issues. Customers receive a 10-year warranty on manufacturer parts, reflecting our confidence in installation quality and long-term system reliability.
Duct Cleaning
Professional duct cleaning removes contaminants that affect indoor air quality and system efficiency. Using specialized equipment, we clean supply, intake, and return ducts while addressing mold, dust accumulation, and airflow restrictions. Regular maintenance prevents health risks, reduces energy costs, and extends HVAC system lifespan through improved air circulation.
Air Conditioning Repair
We diagnose and repair all air conditioning issues including refrigerant leaks, compressor failures, and thermostat malfunctions. Emergency services address urgent cooling needs while routine maintenance prevents breakdowns. Technicians use factory-approved parts and diagnostic tools to restore system efficiency and extend equipment longevity.
Heating Installation
Our team installs high-efficiency heating systems including furnaces and heat pumps, tailored to property size and climate needs. We assess AFUE ratings, fuel types, and zoning requirements to optimize comfort and energy savings. New installations come with comprehensive warranties and include proper duct integration for balanced temperature distribution.
Thermostat Installation
We upgrade thermostats to programmable and smart models that improve energy management and user convenience. Installation includes system compatibility checks and programming guidance. Modern thermostats reduce utility bills through automated scheduling, remote control capabilities, and adaptive learning features for personalized climate control.
People
Lynda Jessica
CEO
With 25+ years in HVAC leadership, Lynda Jessica oversees operations at MDB SAME DAY HVAC. She manages a 10-member technician team and 4,000+ completed projects while maintaining focus on customer satisfaction and technical excellence in the Bay Area market.
Roger
Support Engineer
Roger provides technical support for complex HVAC systems, specializing in diagnostics and system optimization. With extensive field experience, he ensures service teams have proper resources and technical guidance to deliver high-quality installations and repairs across multiple Bay Area locations.
Mario
Technician
Certified HVAC technician Mario handles residential and commercial installations, repairs, and maintenance. His expertise in modern heating/cooling systems and commitment to same-day service make him a key contributor to MDB's 98% customer satisfaction rate across 15+ service areas.
Fabrizio
Technician
Fabrizio specializes in emergency HVAC repairs and system upgrades. With 10 years of field experience, he addresses urgent cooling/heating needs while maintaining MDB's standards for technical precision and customer communication during critical service calls.
Ali
Technician
Ali focuses on duct system diagnostics and improvements, handling both new installations and retrofit projects. His technical skills in sealing leaks and optimizing airflow contribute to MDB's reputation for comprehensive HVAC solutions that enhance system efficiency and indoor air quality.
Questions
What areas do you service?
We serve Antioch, Brentwood, Concord, Walnut Creek, and 12+ other Bay Area cities with both residential and commercial HVAC solutions.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency HVAC repair services with same-day availability for urgent heating and cooling needs.
What HVAC warranties do you offer?
We provide a 10-year installation warranty and one-year service warranty, exceeding standard manufacturer coverage for added customer protection.
How often should ducts be cleaned?
We recommend professional duct cleaning every 3-5 years to maintain air quality and system efficiency, with more frequent service for allergy sufferers.
Are your technicians certified?
All our HVAC technicians are factory-trained, NATE-certified, and complete ongoing professional development to maintain technical expertise.
