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12 Years
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Emergency
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Expert HVAC Services in San Jose
Design Heating & Air Conditioning has served the Greater Bay Area for 11 years, delivering advanced HVAC solutions for commercial clients. Our expertise spans scheduled maintenance, equipment retrofits, and new construction projects, supported by licensed engineers and 24/7 emergency service. We prioritize long-term client relationships through transparent communication, technical excellence, and GPS-tracked fleet efficiency. Our team of skilled technicians and project managers ensures systems operate at peak efficiency, minimizing costs while adhering to strict timelines and budgets.

Backed by industry-leading warranties, we specialize in energy analysis, LEED-certified design, and rapid-response service agreements tailored to client needs. Client testimonials highlight our integrity, reliability, and commitment to resolving complex HVAC challenges without recurring issues.
Services
Scheduled Maintenance Equipment Retrofits New Construction 24/7 Service Design & Engineering
Details
  • Year established: 2014
Highlights and features
  • We offer 11 years of specialized HVAC experience in commercial projects.
  • Our 24/7 service guarantees response within 2 hours for emergencies.
  • In-house licensed engineers provide tailored design and retrofit solutions.
  • Comprehensive maintenance programs reduce long-term operating expenses.
  • Client testimonials highlight unmatched integrity and problem-solving expertise.
What people say
First-class service Operating more efficiently Professional and reliable Skilled and professional Quality product
Services
Scheduled Maintenance
Our scheduled maintenance programs ensure HVAC systems operate efficiently, reducing long-term costs. Services include detailed inspections, equipment surveys, and corrective actions tailored to building needs. With annual to monthly plans, we minimize repair risks and maintain optimal system performance for commercial clients.
Equipment Retrofits
We specialize in retrofitting outdated HVAC systems with high-efficiency solutions. Our team delivers fast replacements, energy assessments, and design modifications to enhance performance. Services include sheet metal fabrication, engineering support, and extended warranties for lasting results.
New Construction
From design to commissioning, we handle full-scale HVAC construction projects. Services include plan-and-spec engineering, energy assessments, and sheet metal installation. Our team collaborates with contractors to ensure timely, budget-conscious delivery of commercial heating and cooling systems.
Service & Repair
Available 24/7, our repair services address urgent HVAC failures with two-hour response times. Technicians perform thorough inspections, offer long-term solutions, and provide one-year warranties on parts and labor for service agreement holders.
Design & Engineering
Our in-house engineers use AutoCAD to create cost-effective HVAC designs for LEED certification, data rooms, and clean rooms. Services include rapid project design, collaboration with clients, and solutions tailored to meet specific comfort and efficiency goals.
Questions
What HVAC services do you offer?
We provide scheduled maintenance, equipment retrofits, new construction, 24/7 emergency repair, and design/engineering services for commercial clients.
Do you offer 24/7 emergency HVAC service?
Yes, our team responds to emergencies within 2 hours for contract customers, available 365 days a year.
Which areas do you serve?
We primarily serve the Greater Bay Area, including San Jose, CA, with tailored commercial HVAC solutions.
What maintenance programs are available?
Programs range from annual to monthly visits, including full-service agreements with detailed reporting and energy analysis.
Do you provide design and engineering support?
Yes, our licensed engineers offer AutoCAD design, LEED certification support, and customized solutions for commercial projects.