Plunge Pool Hot Tub Combo: 10 Smart Tips Before You Buy

A plunge pool hot tub combo gives you the best of both worlds in one compact unit, cool water for recovery and warm water for relaxation. It’s a great fit for small spaces and can be customized to suit your budget. Learn more about what a plunge pool offers before choosing the right combo for your yard.

These hybrid setups are becoming a go-to for homeowners who want the best of both worlds: the muscle-soothing heat of a hot tub and the refreshing cool of a plunge pool.

But with all the options out there different sizes, materials, costs, and features, how do you know what’s right for your space and your budget?

Prices can vary widely depending on setup and materials, so we’ll also break down the average cost of a small plungage pool to help you plan ahead.

Plunge Pool Hot Tub Combo – Complete Buyer Guide

A plunge pool hot tub combo blends the benefits of cold therapy and warm relaxation in one compact system. It’s a space-saving alternative to having both a full-sized pool and a separate hot tub. These combos use shared plumbing and heating systems to simplify maintenance and cut energy costs, making them ideal for small yards.

They’re especially useful in places with seasonal weather, letting you switch between a cool dip or a hot soak year-round. With lower installation costs and water use compared to traditional pools, this hybrid setup offers practical luxury that fits almost anywhere.

Why Choose a Plunge Pool Combo?

A plunge pool hot tub combo isn’t just a trendy backyard upgrade, it’s a smart way to get more out of your space, your budget, and your wellness routine. If you’ve been wondering whether it’s worth it, here’s why so many homeowners are making the switch:

1. Year-Round Relaxation

Cool off in the summer, soak in soothing warmth when it’s cold, all in one setup.

2. Compact Yet Stylish

Ideal for small yards or patios, and adds a sleek, modern look to your outdoor space.

3. Health Perks That Matter

Hydrotherapy can ease muscle pain, improve circulation, and lower stress after a long day.

4. A Place to Gather

Great for hosting. It creates a cozy, social atmosphere for friends and family.

5. Your Private Oasis

Skip the crowds and enjoy peaceful, anytime access right in your backyard.

6. Use It in Any Season

With built-in temperature control, it’s ready to go no matter the weather.

7. Adds Real Value

Boosts curb appeal and may even increase resale value when it’s time to move.

8. Supports Wellness Goals

Use it for low-impact exercise, stretching, or just a mindful moment to unplug.

9. Sleep-Friendly Routine

A warm soak before bed can help you fall asleep faster and sleep more deeply.

10. Energy Efficient by Design

Uses less water and energy than full-size pools, helping you save money and stay eco-conscious.

How a Combo Unit Works:

Pool, Spa, Spillover, or Spool Setup for single and dual chamber systems:

So, how does a plunge pool hot tub combo work? While designs vary by brand and budget, they all blend hot and cold water zones in a single compact footprint. Depending on the model, you’ll typically find one of two core systems:

Single-Stream System

This setup uses one water loop for both the hot and cold sections, with a shared filtration and pump system. You adjust the temperature for the entire unit or split it by time of day. It’s efficient, low-maintenance, and works well for compact spaces or above-ground prefab models.

Dual-Chamber System

More advanced combos (like the E2000 or X2000 from Endless Pools) separate the hot tub and plunge pool sections. Each has its own temperature control, pump, and filtration, so you can soak in warmth and swim in cool water at the same time. Perfect for year-round wellness routines.

Key Features You’ll Commonly Find

• Hydrotherapy jets in the hot tub zone
• Circulation systems that maintain water clarity
• Non-chlorine sanitation options like saltwater or natural oxidation (often cadmium-free and eco-conscious)
• Optional spillover edges for seamless transitions between the zones

Comparing Combo 4 Types and Models:

Not all plunge pool hot tub combos are built the same. The right type depends on your space, budget, and how much customization you’re after. Here’s a quick breakdown of the main options:

1. Inground Combos (aka Spools)

• Fully custom builds using tile, shotcrete, or fiberglass
• Seamless integration into your landscape
• Higher upfront cost and longer install timeline
• Great for homeowners planning full backyard renovations. Check out small inground pool hot tub combo

2. Precast or Prefab Combos

• Think of Soake Pools or other precast systems
• Faster to install and typically cost 30–50% less than custom builds
• Compact, insulated, and ideal for small yards
• A solid mid-range option with fewer headaches

3. Above-Ground or Portable Units

• Budget-friendly and DIY-friendly
• Minimal site prep needed (no digging or concrete)
• Often comes as a one-piece combo that plugs in
• Great for renters or folks who want flexibility. More about Above ground pool

4. Swim Spa Combos

• Dual-zone setups with a swim current and heated spa seats
• Often powered by jets or hydro motors (like Endless Pools)
• Higher cost, but excellent for fitness + relaxation in one
• Typically portable but still require a flat, reinforced base

Some popular models include:

• Endless Pools X2000 Exercise System: This swim spa features a smooth current for swimming in place and hydromassage jets for relaxation.
• Soake Pool: This plunge pool is made of precast concrete and can be installed in days. It features a built-in heater and hydromassage jets.
• Luxury Pool & Spa E2000 Swim Spa: This dual-chamber swim spa features a warm water area for swimming and a hot water area for relaxation.

You can find some models of this type from Soake Pools Plungie USA, and Spit Swimming.

Size:

The size can vary based on your specific requirements and the model you choose. The average size of combo ranges starts from 4m x 2m (13ft x 6ft) to 7m x 4m (23ft x 13ft). On the other hand, the average size of a hot tub ranges from 1.8m x 1.8m (6ft x 6ft) to 2.4m x 2.4m (8ft x 8ft).

Typical Price Ranges:

Project Type	Starting Cost	What Adds to the Price
Prefab Above-Ground Combo	$5,000–$10,000	Upgrades like heaters, jets, or custom decking
Small Inground (Fiberglass or Vinyl)	$12,000–$30,000	Extra depth, tile work, saltwater systems
Full Inground Concrete with Spa Feature	$30,000–$60,000+	Spillover walls, custom landscaping, permits

A few things to keep in mind:

• Labor costs can eat up 25% to 50% of your total budget.
• Since early 2025, materials and skilled labor pricing have gone up due to high demand and supply constraints.
• Don’t forget to set aside a 20% contingency for unexpected expenses like soil issues or code upgrades.
• Permit fees vary by city, but they’re almost always required for in-ground builds.

The initial installation cost can vary widely based on several factors:

• Size and Design: Custom designs and larger sizes naturally increase costs. A standard plunge pool hot tub combo typically starts around $12,000 and can go upwards of $35,000 or more for high-end, luxurious models.
• Materials: The choice of materials, such as concrete, fiberglass, or vinyl, impacts the overall expense. Concrete tends to be more durable and customizable but is also the most expensive option.
• Features and Add-ons: Additional features like integrated lighting, water jets, heating systems, and automated covers increase the total cost. These enhancements can cost from a few hundred to several thousand dollars.
• Labor and Permits: Hiring professional contractors and obtaining necessary permits can add another $4,000 to $8000 to the project.

Ongoing Maintenance Costs

• Water Treatment: Keeping the water clean and balanced requires chemicals and treatments, costing around $500 to $1,000 annually.
• Electricity: Heating the water, running pumps, and lighting can lead to significant electricity costs, typically around $1,000 to $2,000 per year.
• Repairs and Replacements: Wear and tear may necessitate occasional repairs or part replacements. Budget around $500 to $1,500 annually for unforeseen repairs.

Plunge Pool Hot Tub Combo Calculator

Feel free to use our pool calculator app.

I have always been curious about the plunge pool. I researched and learned more about the different options for it. Here’s what I found:

1. It is a single unit with a large swim area and a smaller spa area with jetted seats. The water temperature can be the same or different for each site. This combo type is ideal for people who want to swim and relax in one space. You can find some models of this type from Endless Pools and Master Spas.
2. A dual-zone swim spa is a single unit with two separate bodies of water and independent temperature controls. One side is a swim spa with a smooth current to swim in place, and the other side is a hot tub with hydromassage jets. You can also find some models of this type from Endless Pools and Master Spas.
3. A hot tub combo is an in-ground pool with a hot tub designed into the footprint. The hot tub is usually located in one of the pool’s corners and has a spillover effect. 

The Perfect Balance of Recreation and Relaxation

Combo offers an unbeatable combination of versatility and convenience. If you’re cooling off after a workout or easing sore muscles with a warm soak, this dual-purpose solution caters to every season.

Pros of a Plunge Pool

They offer quick cool-downs during hot weather while requiring less installation time, especially with prefab plunge pool options. Despite their smaller size, they provide ample room for light exercise and relaxation, making them a flexible solution for fitness and leisure.

• Space-saving: Ideal for small backyards, patios, or indoors.
• Easy installation: Prefab options simplify the setup process.
• Affordable: Lower plunge pool cost compared to traditional pools.

Pros of a Hot Tub

With its year-round usability, a hot tub provides therapeutic benefits such as stress reduction and muscle relief, especially during colder months. The warm water, combined with massaging jets, promotes relaxation and improves circulation, making it an essential feature for anyone focused on health and wellness.

• Health benefits: Reduces muscle soreness, stress, and tension.
• Year-round use: Perfect for cold weather relaxation.
• Convenient features: Many models offer easy maintenance and temperature control.

Pros of a Plunge Pool and Hot Tub Combo

Combining a plunge pool and hot tub saves both space and money while offering the best of both water therapies. You can enjoy a quick, refreshing plunge in the summer and a cozy soak in the winter, all within the same unit. It’s an efficient way to maximize outdoor enjoyment without needing separate installations.

• Versatile: Perfect for both fitness and relaxation throughout the year.
• Dual functionality: Enjoy cooling and heating in one unit.
• Cost-efficient: Save on installation and space compared to separate systems.

This investment appeals to budget-conscious buyers who want to maximize functionality while staying within a reasonable budget. A well-designed combo can attract future buyers, making your property stand out in a competitive market.

Key Benefits:

• Increased Property Value: A plunge pool hot tub combo adds both luxury and practical appeal, raising home resale value.
• Space Efficiency: Ideal for homes with small backyards, offering multiple uses in one compact design.
• Cost-Effective: Compared to full-size pools, the plunge pool cost and soake pool cost are more affordable, making it accessible to a broader range of buyers.

This unique setup provides a range of health benefits by using the therapeutic effects of switching between warm and cold temperatures, ideal for fitness enthusiasts, athletes, or anyone seeking enhanced relaxation.

Key Benefits:

• Enhanced Recovery: Cold plunges reduce muscle inflammation, while hot tubs promote relaxation and blood flow—perfect for post-workout recovery.
• Year-Round Use: Enjoy the cold plunge in warmer months for a refreshing cool down, and the hot tub in colder months for cozy relaxation.
• Customizable: Choose between varying temperatures at any time, making the system adaptable to your preferences and health needs.

Feature	Hot Tub Benefits	Cold Plunge Benefits
Temperature Range	100°F – 104°F (Relaxation, Stress Relief)	50°F – 60°F (Inflammation, Recovery)
Key Effects	Muscle relaxation, stress reduction	Pain relief, faster recovery, reduced swelling
Ideal For	Everyday relaxation, stress management	Athletes, fitness enthusiasts, post-injury recovery

What to Know Before You Buy or Build

1. Permits, Zoning & Safety Requirements

Most areas in the U.S. require permits for any pool deeper than 24 inches. You’ll also need to follow local codes for fencing, barriers, and even how close the pool can sit to your property line. Check in with your city or county early in the planning process to avoid delays or surprise costs.

2. Insulation & Access Planning

A well-insulated unit keeps heating and cooling costs down. Also consider the cover type (manual or automatic) and make sure there’s enough room around the unit for servicing pumps, filters, and heaters. Don’t skip the equipment pad—it needs to be level, stable, and weather-protected.

3. Running Costs to Expect

Ongoing expenses include electricity (heaters, pumps), water treatments, and seasonal upkeep. Saltwater and brine systems tend to be lower maintenance than traditional chlorine, but each option has pros and cons.

4. Water Chemistry for Dual Temps

Hot and cold zones have different chemical needs. Warmer water usually needs more frequent treatment to prevent bacteria buildup, while cold water can be more stable but still requires attention to pH and filtration.

Maintenance, Looks & Long-Term Value

One of the perks of a plunge pool hot tub combo is that maintenance tends to be simpler than managing two separate systems. Most setups use shared plumbing and filtration, so you’re only balancing one water chemistry profile, not two.

Plus, having a dual-purpose system means you’re more likely to use it year-round. That consistent use boosts your return on investment, and it doesn’t hurt that a stylish combo unit can bump up your home’s resale appeal, even modestly.

That said, there are a few things to watch out for:

• Shared equipment like pumps and heaters means if one goes down, both zones are out of commission until it’s fixed.
• Hot water requires more frequent chemical balancing and can spike energy use if not well insulated or covered properly.

DIY vs Professional Installation: What Makes Sense?

If it plugs in and fills with a hose, go for it. If there’s concrete and trenching involved, bring in a pro.

DIY-Friendly Options

Smaller prefab or above-ground units are the most DIY-safe. These often come pre-plumbed, pre-wired, and just need a level base, access to power, and maybe some decking around them. They’re great if you’re trying to save on labor and don’t mind some light setup.

Call in the Pros For These

If you’re going inground, dealing with custom spill-over designs, or planning to connect it to structural plumbing and gas lines, you’ll want a licensed contractor. Mistakes in drainage, grading, or insulation can cost you way more than you’d save doing it solo.

Is DIY Worth It?

Yes, DIY can shave thousands off the upfront cost, but you’re trading that for time, energy, and the risk of warranty gaps. Professional installs typically come with structural guarantees and code compliance, which is especially important if you plan to sell your home later.

Differentiators Between Top Combo Brands

Each brand has its strengths, Soake leads on simplicity and style, Endless Pools excels in versatility, and portable models win on convenience. Choose based on what matters most: fitness, therapy, design, or ease of setup.

Soake Pools

• Precast concrete design for quick installation
• Compact footprint, ideal for small backyards
• Well-insulated for efficient heating
• More of a plunge-first design, with optional spa jets

Endless Pools – E-Series

• Swim-spa hybrids with a built-in current for exercise
• Includes separate heated spa seating area
• High-performance motors and customizable features
• Great for wellness-focused users and small-lot fitness setups

Other Portable Combos

• Includes brands offering above-ground or plug-and-play units
• Typically more affordable and DIY-friendly
• Lower installation costs, but fewer custom options
• Perfect for renters or budget-conscious buyers

Check out our full guide about Pool Closing.