No commissions
Structural honesty
One honest price
No change orders
Family-owned
Never private equity
Bryant FAD
Factory Authorized
Lic. #
467256
Since
1977
New construction HVAC installation: get the mechanical right from the start.
The comfort of a new home is decided long before anyone turns on the AC: in the duct design, the equipment sizing, and the mechanical layout. As your local new construction HVAC contractor in Napa County, we work with builders and homeowners from early in the project, so the system is designed for the house rather than squeezed in at the end. Bring us in before the plans are locked and the mechanical simply works.
Early HVAC Planning for New Construction
The best mechanical decisions happen before the engineering plans are done. That timing saves real money.
Design for the Plans
Loads calculated and ducts routed from your actual drawings, not rules of thumb.
Budget That Holds
A detailed scope and a price that doesn't drift as the build progresses.
Clean, Code-Right Work
Installed to pass inspection the first time and perform on day one.
New Construction HVAC Installation: Call Before the Plans Are Locked
Mechanical routed as an afterthought costs real money: a system that has to punch through a firewall, chases that steal closet space, returns that never quite work. Brought in early, we solve those problems on paper, where they’re cheap. Contractors who work with us early look good to their clients, and that’s the point.
New Home HVAC Installation Built for the House
A new Napa home deserves better than a copy-paste mechanical package. We size for the actual orientation, glazing, and layout; design ducts for even, quiet delivery; and commission the finished system so it performs the way the plans promised. The result is a house that’s comfortable from the first night.
HVAC Load Calculation From Your Drawings
Room by room, from the drawings: the foundation of everything else.
Duct design
Routed for performance and buildability, coordinated with the other trades.
Equipment selection
Sized and specified for the home, with efficiency options laid out honestly.
Rough-in & finish
Clean work at every stage, coordinated with your schedule.
Commissioning
Airflow, charge, and controls verified and documented at completion.
Stages of Work
How We Handle Your
New Construction HVAC

Plan Review
We review the drawings, orientation and glazing before anything is sized.

Load Calculation
Room-by-room calculations set the equipment size and duct design.

Duct and Equipment Design
Ducts routed for performance and buildability, coordinated with the other trades.

Rough-In and Finish
Clean, code-right work scheduled around your build.

Commissioning
Airflow, refrigerant charge and controls verified and documented before handoff.
Where we work
New Construction HVAC Across Napa County and the Surrounding Areas
Whether you need new construction HVAC in Napa, St. Helena, Calistoga, Yountville, or Sonoma, we’re your local HVAC installation company for the whole area, from the city of Napa up the valley and over the hills into Sonoma Valley and Green Valley, for builders and homeowners.
In the valley’s words
Counted on since 1977.
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Catherine MorenoTrustindex verifies that the original source of the review is Google.
Excellent service as alwaysPosted on Google![]()
Voni SchaffTrustindex verifies that the original source of the review is Google.
Very professional serviceman … on time and efficient … polite and considerate. I enjoy the service appointments with Reliable Heating and Air. VFSchaffPosted on Google![]()
Cal FalkTrustindex verifies that the original source of the review is Google.
Always good service bt DarrenPosted on Google![]()
Karen RubioTrustindex verifies that the original source of the review is Google.
Very smooth, wonderful work and great execution.Posted on Google![]()
Jenny GassTrustindex verifies that the original source of the review is Google.
Professional, friendly and trustworthy.Posted on Google![]()
Patrick MuleadyTrustindex verifies that the original source of the review is Google.
They are the nicest and most efficient service company. I have worked with in recent memory.Posted on Google![]()
Conley ByrnesTrustindex verifies that the original source of the review is Google.
On time and great working with the service rep!Posted on Google![]()
Bret JohnsonTrustindex verifies that the original source of the review is Google.
Amazingly on target in timing and service diagnostics and repair of the condenser and charging the system. Great experience!Verified by TrustindexTrustindex verified that these reviews were published on Reliable Heating and Air's Google Business Profile. Learn more
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Questions & Answers
Frequently
Asked Questions
Common questions about our services and process. If you don’t find what you’re looking for, call us at 707·252·7227.
When should I bring in an HVAC contractor for a new home?
Before the plans are locked. Mechanical work added late costs more, and early involvement lets us solve problems such as duct routing and equipment space on paper.
What is an HVAC load calculation, and why does it matter?
It is a room-by-room calculation of how much heating and cooling the home needs, based on the drawings, orientation and windows. It sets the equipment size and the duct design.
Do you work with builders, or only homeowners?
Both. We work with general contractors, builders and homeowners, and early coordination helps the contractor look good to the client.
What is included in new construction HVAC installation?
Load calculations, duct design, equipment selection, rough-in and finish work, and commissioning with airflow, refrigerant charge and controls verified and documented.
Do you offer new home HVAC installation near me in Napa County?
Yes. We install to code with the goal of passing inspection the first time, and we coordinate with the other trades on the build across Napa County.