The best HVAC system in a luxury home is the one you never notice — whisper-quiet, perfectly distributed, and invisible within the architecture. We design and install ducted and ductless mini-split systems, radiant hydronic heating, and heat pump systems that deliver precise temperature control in every zone of your estate without the architectural compromise of exposed equipment or intrusive mechanical noise.
Climate system design on a luxury estate begins with a Manual J load calculation — the engineering foundation that determines the correct equipment capacity for each zone. Oversized equipment short-cycles, creating humidity problems and premature equipment failure. Undersized equipment runs continuously and never achieves setpoints. We engineer systems to exact load requirements and coordinate mechanical, electrical, and structural permits as a single coordinated scope.
ConstruBay (CSLB #1106798) is based in Mill Valley and has executed luxury HVAC projects across Marin, Sonoma, and Napa Counties.
What Is Included
The Marin Advantage
HVAC installations in Marin County require mechanical permits with Title 24 energy compliance documentation — one of the most stringent building energy code frameworks in the United States. Our team prepares Title 24 compliance documentation for every HVAC project using current CalCERTS-approved calculation tools, and our PlanPass.ai platform manages mechanical permit submissions across Marin County jurisdictions. For homes transitioning from gas heating to electric heat pump systems — an increasingly common project in Marin County as part of all-electric utility programs — we coordinate the panel upgrade, service entrance work, and utility interconnection as part of a unified project scope, eliminating the coordination friction that delays these projects when managed by separate contractors.
Our Process
Curation & Design
We begin with an in-depth discovery session at your property, translating your vision into a fixed-scope brief with transparent pricing.
Artful Execution
Our licensed craftsmen execute with precision under direct site supervision — every material sourced, every detail approved by you before installation.
The Final Reveal
A thorough walkthrough with your project lead ensures every element meets our standard before you take possession of your transformed space.
Investment Range
$15,000 – $95,000+
Typical Project Range
All projects are delivered under a fixed-scope contract — the number you approve is the number you pay.
Frequently Asked Questions
Begin Your Project
Begin Your HVAC Project
Fixed-scope contract. No surprises. Schedule a private consultation with Paulo.