Bespoke · Custom saunas

Built for your site. Built to last.

A Chillfire custom sauna is designed around your property and built like a small home — framed, insulated, weatherized and finished by the same team, so it heats fast and lasts for generations.

Book a Digital Site Visit How we design in 3D See bespoke designs

Inspiration

From our builds

Chillfire Sequoia custom gray sauna beside a pool — Sequoia

Interior of a sauna with wooden benches and a stone-filled heater, with large glass windows onto a backyard. — Sequoia

Modern wooden garden sauna with large glass door and windows in a landscaped backyard. — Sequoia

Modern outdoor wooden sauna with glass door on a patio with plants and trees behind. — Sequoia

Sauna interior looking out to a screened porch with an Adirondack chair and outdoor patio. — Sequoia

Wood-paneled sauna room with benches and a black bucket with ladle. — Sequoia

Interior of a wooden sauna with bench overlooking a backyard pool. — Sequoia

Chillfire Wolf custom sauna in a private garden — Wolf

Chillfire Baltic indoor custom sauna — Baltic

Sauna interior looking out through a large window to a pool and patio. — Baltic

Glass sauna door with a wood and brushed-metal handle, seen from the bath. — Baltic

High view of corner benches and a stone heater with warm light under the bench tiers. — Baltic

Stone heater, benches and a ladle bucket on the sauna floor. — Baltic

Overhead view of the bench layout with the heater at the centre of the room. — Baltic

Evening light through the sauna window onto the pool and patio. — Baltic

Render of the Chillfire Retreat custom sauna — Retreat

Render of the Chillfire Retreat custom sauna exterior with wood storage — Retreat

Render of the Chillfire Retreat custom sauna interior benches and window — Retreat

The possibilities

If you can picture it, we can draw it

Backyard retreats

Freestanding saunas with porches, big glass and changing rooms, placed to frame the view.

Wellness baths

Indoor saunas set into a bath suite alongside showers, cold plunges and changing areas.

Part of the house

Saunas framed into basements, additions and pool houses, finished to match the architecture.

Gathering spaces

Rooms for eight to twelve, with tiered benches and more than one heat source.

The wall assembly

Insulated like a home

Every custom wall, roof and floor is a layered assembly. Heat stays in the room, moisture stays out of the frame, and the weather never reaches the insulation.

Sauna interior

Heat-ready wood finish, fitted benches and a foil vapor barrier that reflects heat back into the room.

Insulated enclosure

A deep, continuous insulation layer in walls, roof and floor so the room heats fast and holds it.

Weather control

House wrap, flashing and a vented rain screen that keep air and water out of the wall.

Exterior shell

Durable cladding and roofing chosen for the site, the climate and the architecture.

Inside the room → outside the building

Wood selections

Chosen board by board

Interior wood touches your skin at high heat, so we pick species for stability, comfort and no resin. The outside is chosen for the weather and the look of your home. What is thermowood?

Heat-treated boards stacked in the Chillfire workshop

Lumber racks loaded with sauna-grade boards

Interior walls and ceilings

Thermally modified spruce

Heat-treated, stable and resin-free, with a warm, even brown tone.

Benches and backrests

Thermally modified aspen

Smooth, splinter-resistant and cool to the touch at high heat.

Interior or exterior

Cedar

Classic aroma and natural rot resistance for a traditional feel.

The outside shell

Exterior cladding

Wood, metal or composite siding chosen to suit the site and the house.

Featured builds

Finished and in use

Small outdoor wooden sauna with large glass windows in a backyard with trees and a wooden fence.

Tailored Fit

Custom Modern Sauna

A poolside sauna built to share — room for four to eight.

See the project

Warm wood sauna interior with tiered benches and a dark slatted accent wall.

Wellness Bath Integration

Baltic Wellness Bath

A warm, architectural sauna built into the home.

See the project

The process

How a custom build goes

6–12 weeks total

01
Reach out
Share your space, timeline and what you want the custom sauna to do for you.
02
Site visit
We map placement, electrical and any additional site prep needed.
03
Design & iteration
Drawings, cladding and layout go back and forth until the build is right. The design fee is 5% of the estimate.
04
Deposit
Once the drawings are signed off, a 50% deposit covers materials.
05
Build & install
Built like a small home, then installed on your prepared base.
06
Walkthrough
We test everything, teach operation, and back it with a 90-day warranty.

Timeline depends mostly on how many design rounds it takes. See the 3D design process · Read the full build process

Start with a discovery call

Fifteen minutes on your space, your goals and a realistic budget. No pressure — just straight answers.

Book a Digital Site Visit