Underground Construction Experts Since 1997

The Underground Construction Company for Spaces Built Below and Beyond Expectation

From recreation and wine to the ultimate in security, Bacchus delivers luxury underground construction services nationwide

About

Who Is Bacchus Caves? America's Leading Underground Construction Company

Since 1997, Bacchus Caves has been the underground construction company that high-end homeowners and private clients across America turn to when they want something truly extraordinary built beneath their property.

Founded by David Provost a Licensed & Certified Engineer and veteran of the mining industry Bacchus Caves brings over 27 years of hands-on underground expertise to every project. David’s background in professional mining gives Bacchus a technical foundation that no typical construction firm can match. He understands the earth, how it moves, how it holds, and how to shape it into spaces that last for generations.

Over the past two and a half decades, our team has completed 50+ luxury underground projects nationwide from private wine cellars and entertainment rooms to collector galleries, secure underground bunkers, and fully finished subterranean residences.

Every Bacchus project follows a single standard: structural precision meets refined luxury. We handle everything in-house from initial site selection and structural engineering to interior finishing so every detail meets the same uncompromising level of quality from the ground down.

Founder Quote

We don’t just dig. We design, engineer, and finish spaces that people are proud to live in spaces built to last longer than the homes above them. 

David Provost, Licensed & Certified Engineer

At Bacchus Caves, we specialize in transforming earth into extraordinary environments through precision underground construction. From climate-controlled wine cellars crafted by expert wine cave builders to immersive tasting rooms, serene private retreats, and collector galleries, each project balances artistry, technical expertise, and exclusivity. Our work includes luxury underground construction services, modern underground houses, and bespoke underground bunkers designed for both function and elegance. We also develop sustainable spaces that integrate with the natural terrain while maintaining refined cave architecture. Whether constructing luxury underground bunkers or collaborating with underground living space contractors, our team turns untouched subterranean terrain into spaces that preserve collections, elevate lifestyle, and create legacy environments. Each Bacchus creation inspires awe and leaves a lasting impression the moment you descend.

David & Roxanne Provost

Founders 0of Bacchus Caves

Josefin Sans

Founder of Bacchus Caves

Services

Our Underground Construction Services

From site selection to final finish every underground construction project is handled in-house by our licensed team.

Every cave we build is a testament to underground construction, refined engineering, and artisanal excellence, blending form and function into spaces that last.

Site Selection & Layout

Underground Site Selection & Structural Planning

Construction

Custom Underground Construction & Excavation

Finish Out

Interior Finish & Luxury Underground Space Design

Site Selection & Layout

With deep understanding (pun intended) of building underground, we design the right build to fit with your terrain and larger structure, nationwide. 

Construction

Owner David Provost began in the mining industry. With this knowledge, Bacchus Caves builds enduring structures and brings them to life.

Finish Out

From basic security and storage caves to the ultimate in luxury entertaining, we manage jobs from first shovel to final touch-up. We also work well with GCs and architectural firms.

Gallery

Underground Construction Projects Our Work Galler

Browse completed underground construction projects including wine cellars, safe rooms, entertainment spaces, and luxury bunkers built nationwide.

Gallery

A Glimpse Beneath the Surface

Discover the artistry, engineering, and craftsmanship that define every Bacchus creation.

FAQ

Q1. What is Bacchus Caves and what do they do?

Bacchus Caves is an underground construction company based in the USA. We’ve been building luxury underground spaces since 1997. Our founder, David Provost, is a Licensed & Certified Engineer who came from the mining industry. We handle three things planning your underground site, doing the actual construction and excavation, and finishing the interior to a luxury standard. We work with clients all across the country.

Before we dig anything, we visit your property and study the ground. We check the soil, assess the structure, handle permits, and create a full layout plan. This step is important because underground construction has to be done right from the start. Our engineer reviews everything so your space is safe, legal, and built exactly where it should be.

This is where we actually build your underground space. Our team excavates the ground, builds the structure, adds waterproofing, runs utilities, and sets up ventilation. We’ve been doing this for over 27 years, so we know how the ground behaves and how to build something that holds up for decades. Everything is done by our own crew we don’t outsource the hard parts.

Once the structure is complete, we turn it into a finished space you can actually use and enjoy. That means flooring, lighting, wall finishes, climate control, custom built-ins, wine racks, home theater setups whatever your space needs. We work with your vision and make sure the final result looks and feels exactly the way you imagined it.

Most projects take somewhere between 6 and 18 months. A wine cellar or single-room underground space is usually on the shorter end. A larger project like a bunker or full underground suite takes longer. The timeline depends on your location, the soil conditions, permit approvals, and how detailed the finish work is. We walk you through all of this during the free consultation.

We build wine cellars, home theaters, safe rooms, bunkers, entertainment lounges, collector galleries, and fully custom underground living spaces. If you want a space that is private, secure, and built to a high standard that is exactly what we do. Every project is different and we design each one around the client’s specific needs.

Most construction companies have never built underground before. We have been doing it exclusively since 1997. Our founder is a Licensed & Certified Engineer with a background in mining so he understands the ground in a way most builders simply don’t. We handle the full project ourselves, from the first site visit to the final coat of paint. Over 50 completed projects across the USA speak for themselves.

Blogs

Underground Construction Tips, Guides & Industry Insights

Exploring the world of underground architecture, luxury craftsmanship, and design excellence.

Testimonials

Voices From Beneath the Surface Celebrate Every Project.

Clients investing in underground construction or luxury underground construction services appreciate wine cave builder expertise, modern underground houses, and sustainable spaces. Each cave becomes an environment, not just a room.

Contact Us

Start Your Underground Construction Project Today

Tell us about your underground construction project

Ready to Build Your Underground Space? Get a Free Consultation

Let’s collaborate to design a space that reflects your passion, style, and legacy built with the craftsmanship that only Bacchus Caves can deliver.