Last updated 2026-07-11

What does it actually cost to install a sauna, pool, or hot tub?

Start with the sticker price. The gap between these three is bigger than most people expect, and it decides everything downstream.

A basic barrel or cabin-style outdoor sauna starts around $3,000 to $5,000 for a quality prefab unit you can put together yourself over a weekend. A custom indoor sauna built by a contractor runs $8,000 to $20,000 depending on size and materials. An infrared cabinet sits in the $2,000 to $7,000 range. Against everything else on this list, that is a soft landing. You can compare home sauna options across price tiers before you commit to anything.

A standalone hot tub (portable, not built-in) costs $3,000 to $16,000 for the unit alone, then another $500 to $2,000 for electrical work, a concrete pad, and delivery ^[1]. A built-in spa or swim spa runs $15,000 to $30,000 installed.

An inground pool lives in its own category. The national average for an inground pool in the United States runs $50,000 to $100,000 installed, and that climbs fast once you add decking, fencing (required by law in most states), a heater, or water features ^[2]. Above-ground pools look cheaper at $1,500 to $5,000 for the shell, but site prep and installation push the all-in number to $5,000 to $15,000.

So before you say a word about resale or operating costs, a pool costs 5 to 20 times more than a comparable sauna. That gap sets the height of the hole you have to climb out of.

What are the ongoing operating costs for each option?

Up-front cost is one number. What you pay every month for the next decade is the number that actually decides whether you regret the purchase.

A traditional wood-fired or electric sauna costs very little to run. A 6 kW electric heater running one hour a day, at the U.S. average residential rate of roughly $0.17 per kWh (2024), costs about $30 a month ^[3]. Fire it up less often and that drops. Maintenance is almost nothing: wipe the benches, inspect the heater once a year, re-treat the wood every few years.

A hot tub costs more than people plan for. It runs 24/7 to hold water temperature, so 75 to 150 kWh a month is common, putting electricity at $13 to $25. Chemicals add $50 to $100 a month. Filters, the occasional service call, and a new cover every 5 to 7 years pile on another $500 to $1,000 a year on average ^[4]. Averaged over the years, the real monthly number lands around $150 to $300.

A pool is another league. Chemicals alone run $100 to $300 a month. Add pump and heater electricity, cleaning service if you use one, and resurfacing (every 10 to 15 years for plaster, at $10,000 to $20,000), and $500 to $1,000 a month is easy ^[2].

Here is the number that should stop you cold. Over 10 years, a sauna costs $3,000 to $6,000 to operate, a hot tub runs $18,000 to $36,000, and a pool can reach $60,000 to $120,000. The operating gap alone is enough to fund a very nice sauna and still have money left.

Does a sauna add to your home's resale value?

Yes, modestly, and more reliably in cold climates than warm ones. Real estate data on saunas is thinner than data on kitchens or baths, but what exists points the same direction. The National Association of Realtors reports that wellness and relaxation features have gained buyer demand, and agents tend to view a well-installed sauna as a positive ^[5]. Some agents cite a 4 to 5% bump in home value for a good sauna, though it swings hard by region. It matters far more in Minnesota than in Phoenix.

Saunas pull from a wide buyer pool. Families read it as a health amenity. Remote workers read it as a recovery tool. Older buyers read it as the thing they used to pay a spa for. That breadth is rare in a home addition.

The recoupment story looks good in relative terms too. A $10,000 custom sauna that adds $15,000 to $20,000 in perceived value carries a positive return, even if the exact figure is fuzzy. A portable sauna at $500 to $1,500 has almost no downside, since you take it with you when you move.

One honest caveat. A poorly built sauna in a spot that makes no sense (a cramped closet conversion, say) reads as neutral or even negative to buyers who never wanted one. Installation quality carries the whole thing.

Does a pool add resale value, or does it hurt it?

This is where the old wisdom collapses. A pool is usually not the value-add homeowners assume it is. In cold-weather markets, it can be a drag on the sale.

HGTV and Remodeling Magazine's Cost vs. Value report have both flagged that inground pools recover a small fraction of their install cost at resale ^[6]. A $60,000 pool might add $10,000 to $20,000 in appraised value in a warm market. In a cold one, it may add nothing. Some buyers in cold climates avoid homes with pools outright because of the upkeep and the liability.

NAR data shows pools sell quickly in warm climates and actively deter buyers in others ^[5]. A pool that costs $75,000 to install and adds $15,000 to value recoups about 20%. That is objectively poor.

Liability piles on. Insurance premiums rise with a pool. Most states require a fence of at least 4 feet, and many require 5 or 6, around residential pools, with the exact rule set by your municipality ^[7]. Those fences cost money, read as barriers, and change how the yard looks. Permits are required in effectively every jurisdiction, and pool permits get scrutinized hard.

Arizona or Florida? A pool is closer to neutral, maybe a slight positive. Almost everywhere else, the math refuses to work.

How does hot tub resale value compare?

Hot tubs lose value fast. A portable hot tub is personal property in most jurisdictions, not a fixture, so it does not automatically lift your home's appraised value the way a built-in improvement does. A buyer may not want it. Sellers often haul it away or leave it behind.

A built-in hot tub adds some value, but the return stays modest. A $15,000 built-in unit might add $5,000 to $8,000 to a home's appeal in the right market. That is 33 to 53% cost recovery, better than a pool and still not positive ROI.

Portable hot tubs start depreciating the moment you fill them. A five-year-old portable unit is worth maybe 20 to 30% of what you paid, and plenty of buyers treat it as something to negotiate around rather than a reason to buy.

The one scenario where a hot tub earns its keep at resale is as part of a finished outdoor space with landscaping, decking, and a sauna or fire feature. It plays a supporting role there. On its own, it is a line item buyers want off the bill.

What about the health and wellness ROI?

Financial return is not the only return. If you are going to drop $5,000 to $15,000 on a home amenity, the value of actually using it every week counts for a lot, and this is where the sauna separates from the pack.

The research base for sauna use has grown fast. A 2018 review in Mayo Clinic Proceedings found regular sauna use (4 to 7 times per week) was tied to reduced risk of cardiovascular events and all-cause mortality in a cohort of over 2,300 Finnish men followed for 20 years ^[8]. The same paper noted links to lower dementia risk. Be careful with that: these are associations from an observational study, not controlled trials proving cause, and the population was Finnish men with sauna baked into their culture. Still, the signal repeats across several large studies, and the proposed mechanisms (heat stress, better cardiovascular function, parasympathetic recovery) are biologically plausible.

For stress and sleep, regular sauna users report improvement often. A 2019 systematic review in Evidence-Based Complementary and Alternative Medicine found sauna bathing had a significant positive effect on well-being in healthy adults ^[9].

Hot tubs have a thinner evidence base. Warm-water immersion can ease muscle soreness and improve sleep in the short term. Pools offer cardiovascular exercise, with obvious benefits, but a pool you swim laps in and a pool you float on a raft in are not the same investment.

If health outcomes drive your decision, the sauna is the most evidence-backed of these three. Our sauna benefits guide breaks down the specifics.

How do permit and insurance costs compare?

Permits and insurance are the costs nobody budgets for, and they widen the gap between a sauna and a pool.

A pool permit in most U.S. municipalities costs $200 to $500 for the permit itself, but the inspection process (multiple inspections are standard) plus the required fence often adds $3,000 to $8,000 to the total job ^[7]. Pool permits are required in every state for inground construction. Some jurisdictions also require a building permit for above-ground pools over a set size.

Homeowner's insurance with a pool typically adds $50 to $100 a year to your premium at minimum, and some insurers push you into higher liability coverage, meaning an umbrella policy at $200 to $500 a year ^[10].

A sauna inside your home or in a detached structure usually needs only a building permit if there is electrical work involved (for an electric heater), and in many areas an electrical permit is enough. That runs $50 to $200 in most places. A wood-fired outdoor sauna on a simple foundation may need only a standard deck or accessory-structure permit. Insurance impact is minor. Some underwriters ask about it, but it rarely moves premiums much, because the liability profile is nothing like a pool's.

Hot tubs in most states need an electrical permit (they run on 240V) and, in some areas, a building permit if they sit on a new deck. Insurance impact is moderate: some insurers treat portable hot tubs as personal property, others treat them as pool equivalents for liability. Read your policy.

On regulatory friction, the sauna is far simpler. A pool project in a suburban area can take 2 to 4 months just to clear permits and HOA approval before anyone breaks ground.

Which option is the best value for money over 10 years?

Run a real 10-year total cost of ownership for a mid-range version of each. These are not guarantees. They are built from the same cost ranges cited above.

The cabin sauna is the only row where you might reasonably recover more than you spent, at least in a favorable market. The inground pool spends $130,000 and hands back $10,000 to $20,000. In a cold-weather market, that is a net loss north of $110,000.

If your goal is to spend money on something you use daily, that holds some value, and that does not punish you at resale, the sauna is the answer. An outdoor sauna in particular photographs well and draws buyers hunting for a wellness-minded property.

SweatDecks curates electric and wood-fired saunas at several price points if you want to line up specific models before buying.

Are there scenarios where a pool beats a sauna on ROI?

Yes, and it is worth being fair about them. In a warm-weather state where pools are near-universal (Arizona, Florida, Southern California, the Texas Gulf Coast), and where you are buying a home that sells slower without one, adding a pool narrows the gap. In those markets, a home without a pool in certain price brackets genuinely moves slower and at a discount.

Even there, the real question is whether you break even, not whether you profit. The $50,000+ price tag and steep operating costs make it very hard to come out ahead. You are buying enjoyment, not an investment.

A pool also makes sense if you have kids who will use it daily, you live in a market that expects a pool in your price bracket, and you plan to stay 15 or more years. Spread the cost across that many years and the per-use price gets reasonable while you pull real lifestyle value out of it.

A hot tub beats a sauna on exactly one axis: it is a social experience most people find easier to walk into. If your social life runs on outdoor entertaining and the yard is set up for it, a hot tub gives you something a sauna does not in quite the same way. It still loses the financial argument to a sauna.

What do real estate agents say about saunas vs. pools in listings?

Agents in cold-weather markets consistently treat a sauna as a positive differentiator and a pool as a liability or a wash. In warm-weather markets they flip it: pools are expected, saunas are the bonus.

The National Association of Realtors' 2023 Remodeling Impact Report noted that outdoor features tied to relaxation and wellness are increasingly valued by buyers ^[5]. The report does not break out saunas by name, but the trend is clear. Buyers who prioritized wellness amenities during and after 2020 have not walked that preference back.

One structural edge for saunas: they read as low-maintenance. A pool is a responsibility. A sauna is a perk. That framing works on a buyer at an open house.

A sauna also lands with buyers who would never have built one themselves but feel like they are getting something extra. It reads as custom. A pool in a lot of markets just reads as the thing that came with the house.

If you are in a cold-weather metro and eyeing a pool purely to help the eventual sale, stop. A quality outdoor sauna, or even a nice home sauna build in a basement or garage, is almost certainly the better financial call and the better health call.

What is the cheapest way to get sauna ROI at home?

You do not have to spend $15,000 to get real financial and health return from a home sauna. The cheapest entry is closer to $300.

A portable sauna tent at $300 to $1,500 gives you the core experience (raised core temperature, heat stress, sweat) with almost no install and zero impact on your home's structure. It is personal property. You take it when you move. Operating cost is tiny, since it runs on a small personal heater or steam generator. This is the right answer if you rent or if you want to test the habit before committing real money.

A barrel sauna kit in the $3,000 to $6,000 range is the sweet spot outdoors. You get a real sauna, a real health tool, and a look that shows well in listing photos. Assembly is a weekend project for anyone reasonably handy. An electric heater needs a licensed electrician, but a wood-fired setup skips that step in many jurisdictions.

The infrared cabinet sauna ($2,000 to $5,000) fits an apartment-sized space or a spare bedroom. It plugs into a standard 120V outlet in lower-power models (up to about 1,400W) or a 240V circuit in larger units. No permits in most areas for the lower-power models, and you take it with you when you move.

For contrast therapy, pairing heat with cold, a sauna plus a cold plunge setup is getting popular and still costs less than most pool installs combined. The science on alternating heat and cold is early but interesting, and the combined setup is a genuine wellness buy.

SweatDecks carries both categories if you want to compare specific models before you decide.

Frequently asked questions

Does adding a sauna increase home value?

In most markets, yes, modestly. Agents commonly cite a 4 to 5% increase in home value for a well-installed sauna, especially in cold-weather regions where buyers see a genuine amenity rather than an oddity. A cheap or poorly built sauna can be neutral or slightly negative. Quality of installation matters more than size.

Does a pool add value to a home?

It depends heavily on climate. In warm-weather states like Florida, Arizona, and Southern California, a pool can help a home sell faster and may add 5 to 8% of its cost in value. In cold-weather markets, a pool often recoups 20% or less of its installation cost and can actively deter buyers who don't want the maintenance burden.

Is a sauna cheaper to maintain than a hot tub?

Yes, by a lot. A sauna costs roughly $25 to $50 a month to operate (electricity plus minimal maintenance). A portable hot tub runs $150 to $300 a month once you count electricity to hold water temperature, chemicals, filters, and service calls. Over 10 years, that gap compounds to $15,000 to $30,000 in extra spending on the hot tub.

How much does it cost to run a home sauna per month?

A 6 kW electric heater running one hour daily, at the U.S. average of roughly $0.17 per kWh, costs about $30 to $35 a month in electricity. Use it every other day and cut that roughly in half. Wood-fired saunas cost even less to run (just wood) but take more manual effort. Lower-wattage infrared models run about $15 to $25 a month.

What is the ROI on a backyard pool?

Generally poor. An inground pool costs $50,000 to $100,000 to install and may add $10,000 to $20,000 in appraised value in a favorable market, a cost recoupment of 15 to 30%. Operating costs of $500 to $1,000 a month over 10 years add another $60,000 to $120,000 in spending. In cold-weather markets, the return can be effectively zero or negative.

Can you take a home sauna with you when you sell your house?

Often yes. Infrared cabinet saunas and portable barrel sauna kits are personal property in most jurisdictions and can be disassembled and moved. A custom built-in sauna is generally treated as a fixture and stays with the home. If you want flexibility, a prefab modular or barrel unit is the right choice. Confirm with a real estate attorney in your state if it matters for a specific sale.

Do hot tubs require permits?

In most U.S. jurisdictions, a portable hot tub needs at minimum an electrical permit for the 240V dedicated circuit. Some areas also require a building permit, especially if the tub sits on a new or modified deck. Built-in spas typically require both a building and an electrical permit. Requirements vary by municipality, so check with your local building department before installation.

Is a sauna a good investment for a rental property?

It can be. A sauna in a vacation rental (Airbnb or VRBO) consistently commands higher nightly rates in cold-weather and mountain markets. The amenity filters for guests actively seeking it, which tends to lower vacancy. For a long-term rental, the effect is more modest: it may help attract tenants at the top of your price range but rarely decides the lease for most renters.

What type of sauna has the best resale value?

A permanently installed cedar cabin or barrel sauna with a quality electric or wood-fired heater tends to hold value best at resale, because it reads as a real improvement to buyers and appraisers. Infrared cabinet saunas hold personal resale value well (60 to 70% of purchase price if well maintained) but may not add to appraised value since they are moveable.

Does homeowner's insurance go up with a sauna?

Rarely in a meaningful way. A sauna does not carry the drowning-risk liability of a pool, so most insurers treat it like any other electrical appliance or outbuilding. Notify your insurer and confirm coverage, particularly for a wood-fired sauna, which carries some fire risk. A pool, by contrast, typically raises your premium by $50 to $100 a year minimum and may require an umbrella policy.

How long does a home sauna last compared to a hot tub or pool?

A quality cedar sauna with a reliable heater can last 20 to 30 years with minimal maintenance. Heaters typically last 5 to 10 years before replacement (cost: $300 to $800). A hot tub averages 10 to 20 years, with jets, pumps, and controls all failing over time at real cost. An inground pool shell lasts indefinitely but needs resurfacing every 10 to 15 years at $10,000 to $20,000. Saunas win on longevity per dollar spent.

What is contrast therapy and does it require both a sauna and a cold plunge?

Contrast therapy is alternating between heat (sauna) and cold (cold plunge, ice bath, or cold shower) to trigger cardiovascular and recovery responses. The research is early, but a 2021 study in the European Journal of Applied Physiology found cardiovascular adaptations from repeated contrast sessions. You do not need both to start, but the pairing is increasingly popular for home setups. A sauna plus a cold plunge still costs far less than a pool.

Is an infrared sauna or a traditional sauna better for home ROI?

For resale value, a traditional (Finnish-style) electric or wood-fired sauna usually impresses buyers more, because it reads as a premium, permanent installation. Infrared cabinets are excellent for personal use and health outcomes but may not add as much perceived value to a listing. For health ROI and ease of installation, infrared is very competitive. The best choice depends on whether you are optimizing for daily use or eventual resale.

How does a sauna compare to a steam room for home value?

Both are wellness amenities that draw similar buyers. Steam rooms need more waterproofing in construction, which makes them pricier and harder to build correctly (a poorly sealed steam room causes serious structural damage). A sauna is forgiving by comparison: wood handles heat and humidity fine with no tile or membrane required. For most homeowners, a sauna is the lower-risk, lower-cost option with comparable appeal.

Sources

1. HomeAdvisor (Angi), Hot Tub Installation Cost Guide: Hot tub units cost $3,000 to $16,000 with electrical and site preparation adding $500 to $2,000
2. HomeAdvisor (Angi), Swimming Pool Cost Guide: Inground pool installation averages $50,000 to $100,000 with operating costs of $500 to $1,000 per month
3. U.S. Energy Information Administration, Electricity Data: U.S. average residential electricity price approximately $0.17 per kWh as of 2024
4. U.S. Consumer Product Safety Commission, Hot Tubs and Spas Safety: Hot tub maintenance costs including chemicals and service average $500 to $1,000 per year beyond electricity
5. National Association of Realtors, 2023 Remodeling Impact Report: Wellness and outdoor relaxation features increasingly valued by homebuyers; pools sell quickly in warm climates but can deter buyers in cold climates
6. Remodeling Magazine, Cost vs. Value Report 2023: Swimming pools recover a small fraction of installation costs at resale, particularly in non-warm-weather markets
7. U.S. Consumer Product Safety Commission, Safety Barrier Guidelines for Home Pools: Most states require fences of at least 4 feet around residential pools; permits and inspections are mandatory for inground pool construction
8. Mayo Clinic Proceedings, Cardiovascular and Other Health Benefits of Sauna Bathing (2018): Regular sauna use 4 to 7 times per week was associated with significantly reduced risk of cardiovascular events and all-cause mortality in a 20-year Finnish cohort study of 2,300+ men
9. Evidence-Based Complementary and Alternative Medicine, Health Effects of Voluntary Exposure to Hot Environments (2019 systematic review): Sauna bathing had a significant positive effect on well-being in healthy adults across reviewed studies
10. Insurance Information Institute, Homeowners Insurance and Liability: Homeowners with pools typically pay $50 to $100 more per year in premiums and may need umbrella liability coverage at $200 to $500 per year
11. European Journal of Applied Physiology, Cardiovascular Responses to Contrast Water Therapy (2021): Repeated contrast therapy sessions (alternating heat and cold) produced measurable cardiovascular adaptations in study participants