New Construction HVAC
Partner with DG Heating & Air Conditioning for complete HVAC design and installation on new construction projects throughout the Bay Area. From mechanical drawings to final system commissioning, we deliver reliable comfort solutions for luxury homes.
Designed to Work Seamlessly With Your Build Team
HVAC Coordination That Keeps Projects Moving
DG Heating & Air Conditioning works closely with contractors, project managers, architects, and interior designers throughout the entire construction process. Our team coordinates system placement, duct routing, and installation timelines to ensure your project remains on schedule. We understand the importance of preserving architectural design while delivering powerful and efficient climate control systems.
After installation, we perform a full series of operational tests to verify that every component is performing according to the manufacturer’s specifications. This ensures the HVAC system is operating safely, efficiently, and exactly as designed before project completion.
Engineering the Perfect HVAC System for Your Project
One-Stop HVAC Design, Planning, and Installation
DG Heating & Air Conditioning provides a fully integrated design-build process for new construction projects to ensure accuracy, efficiency, and seamless coordination throughout your project.
All Load Calculations Done In-House
Manual J – Residential Load Calculation
Determines the exact heating and cooling requirements for your building based on size, insulation, windows, and climate.
Manual S – Equipment Selection
Ensures HVAC equipment is properly sized and matched to the building’s load requirements.
Manual T – Air Distribution Design
Determines proper grille and register placement for balanced airflow and consistent comfort.
Manual D – Duct System Design
Engineers ductwork layouts that optimize airflow efficiency and system performance.



Premium HVAC Equipment We Install
Trusted Brands for Long-Term Performance
DG Heating & Air Conditioning installs high-performance HVAC systems from leading manufacturers known for reliability, efficiency, and advanced technology.
Some of the Top Manufacturers We Represent
- Mitsubishi Electric (Diamond Elite Dealer)
- American Standard / Trane
- Carrier / Bryant
HVAC System Design & Engineering
Our in-house design team develops HVAC systems specifically tailored to your building plans, ensuring proper airflow, efficiency, and comfort throughout the space.
New Construction HVAC Installation
We install complete HVAC systems for new homes, coordinating closely with builders and other trades.
HVAC Systems for Remodels & Additions
Major renovations and home expansions require updated HVAC planning. Our team designs systems that integrate seamlessly with existing structures while improving comfort.
High-Efficiency and Smart HVAC Systems
We install modern heating and cooling solutions including multi-zone systems, smart thermostats, and energy-efficient equipment designed to meet California energy standards.
Looking for an HVAC contractor for new home construction in the Bay Area?
DG Heating & Air Conditioning provides complete HVAC design and installation services for custom homes and new construction projects across Santa Clara, San Mateo, and Contra Costa counties.
Do you work with builders and architects during the design phase?
Yes. Our team collaborates with architects, builders, and designers during early planning stages to ensure HVAC systems are properly engineered and integrated into the project.
Can you design HVAC systems for luxury homes?
Absolutely. We specialize in custom HVAC solutions including zoned systems, hidden duct installations, advanced filtration, and smart climate control systems.
Do you handle permits and code compliance?
Yes. Our team ensures that HVAC installations meet local building codes.
How early should HVAC planning begin in a construction project?
Ideally during the blueprint or planning phase so the system can be properly engineered and integrated into the building design.


