Resources · Owning
Sauna maintenance: caring for yours, and when to call a pro
Most sauna maintenance is simple and takes minutes: air the room out after use, wipe the benches, keep the vents clear and check the stones now and then. The line to remember is the 240-volt one — anything electrical, or a heater, control or structural fault, is a job for a licensed pro, not a DIY afternoon.
By Vadim, licensed general contractor (GC · C-10 · C-20) · Last reviewed July 2026
A sauna is low-maintenance — if you do the small things
A well-built sauna asks very little of you. A few minutes of care here and there keeps the wood sweet, the heat strong and the room lasting for decades. Skip it for long enough and the small stuff — crumbled stones, a musty room, a seal that's given up — quietly turns into a repair. Here's the whole routine, and the clear line where care ends and a pro begins.
Your routine, by cadence
None of this needs a specialist — just a cloth, a vacuum and a few minutes.
After each use
Prop the door and leave the vent open so the room dries out, and wipe sweat off the benches with a cloth. Ten seconds that head off most odor and mildew.
Every month or so
Wipe the benches and floor with mild soap or a dedicated sauna cleaner — never harsh chemicals or a pressure wash — vacuum debris from under the heater, and eyeball the stones.
A few times a year
Check the stones: if they've cracked or crumbled they choke airflow and weaken the heat, so re-lay or replace them. Test the door seal and hinges, and outdoors look over the exterior finish.
Once a year
A deeper once-over — heater and element condition, control function, vent clearance, and (outdoors) a re-coat of the exterior finish if it's due. Many owners fold this into a professional tune-up.
Where DIY care ends
Part of a sauna runs on a heavy 240-volt circuit, and that's a hard line. Leave these to a licensed pro — the electrical side is never a DIY job, no matter how handy you are:
- Anything electrical — the circuit, the GFCI, the heater hookup, the controls. Don't open or rewire the heater side yourself.
- A heater that won't fire, trips the breaker, or won't hold temperature.
- Water intrusion — soft or stained wood, or a leak you can't trace.
- A door or glass that's dropped out of true and won't seal the heat in.
These are what our service & repair team handles — and because we hold the C-10, we can actually open it up and rewire it, not just swap a part and send you to find an electrician. Often it's one inexpensive fix once it's properly diagnosed.
Signs it's time to call
Some things maintenance won't fix. If the heat's gone weak and fresh stones and clear vents don't bring it back, if the breaker trips, if a musty smell lingers after you've aired and cleaned it, or if the controls act up — those are faults, not chores. Catching them early usually means a small repair instead of a big one; our repair page walks through the common symptoms and what's usually behind each.
Sauna maintenance FAQ
Care questions, straight answers.
How often should I maintain my sauna?
Can I clean the sauna wood myself?
How long do sauna stones last?
Do outdoor saunas need more maintenance?
Is it maintenance, or does it need a repair?
Past a cleaning?
If it's more than maintenance, we'll get it sorted.
If your sauna needs more than a wipe-down — a heater that won't fire, a control that's died, a leak — tell us what it's doing. A specialist answers, and we diagnose before we quote, so you fix what's actually wrong.
The site visit is free — and you keep the work
- A layout sketch for your space
- Heater sizing done right for the room
- A licensed 240V load check
- Your permit path, mapped
A real, fast callback — no email runaround.