MASTER SPAS SHOWROOMS IN CASTLE ROCK
MASTER SPAS SHOWROOMS IN CASTLE ROCK
Certified Master Spas Dealer
Hot Tubs & Swim Spas for Sale in Colorado
Hot Tubs, Swim Spas, Saunas & Cold Plunges in Colorado
Shop Master Spas® Hot Tubs & Swim Spas at Our Castle Rock &
Thornton Showrooms
Shop Hot Tubs, Swim Spas, Saunas & Cold Plunges in Colorado
Find the right Master Spas® product for your lifestyle, space and budget. Explore hot tubs for hydrotherapy and relaxation, swim spas for year round fitness and family fun, infrared saunas for at home wellness, and cold plunge tubs for recovery.
Master Spas® Hot Tubs
Explore Master Spas hot tubs designed for hydrotherapy, relaxation, recovery and time together at home.
Master Spas® Swim Spas
Swim, exercise, recover and enjoy the water year-round with H2X Fitness and Michael Phelps Signature Swim Spas.
Infrared Saunas
Bring wellness home with premium infrared saunas designed for relaxation and recovery.
Cold Plunge Tubs
Explore Chilly GOAT cold tubs and contrast therapy systems designed for convenient recovery at home.
Not Sure Which Spa Is Right for You?
Let Us Help You Narrow It Down in About 60 Seconds.
With dozens of hot tubs, swim spas, saunas and cold plunge options available, figuring out what you actually need can get confusing fast.
So don't start by comparing model numbers.
Tell us what you're looking for, how you'll use it, how many people will use it and approximately what you want to spend.
We'll help you narrow down the Master Spas models that make the most sense for your home, your goals and your budget.
TAKE THE 60-SECOND SPA FINDER →
No pressure. No obligation. Just a better place to start.
Need Service or Parts?
Why Colorado Homeowners Choose Master Spas
Built in America. Designed for Better Hydrotherapy, Easier Water Care and Year-Round Colorado Living.
A hot tub should do more than look good in your backyard. Master Spas are designed to deliver better relaxation, easier ownership and reliable year-round performance, so you can spend more time enjoying your spa and less time worrying about it.
Made in the USA - Master Spas hot tubs and swim spas are manufactured in Fort Wayne, Indiana, with quality materials and careful construction.
The benefit: You're investing in a spa built for long-term ownership, backed by an established American manufacturer with readily available parts, warranty support and a nationwide dealer network.
Energy Efficient - Master Spas combines high-quality insulation, energy-efficient equipment and an insulated spa cover to help retain heat and reduce wasted energy.
The benefit: Your spa stays hot and ready when you want to use it without constantly reheating thousands of pounds of water, helping keep monthly operating costs under control even during a Colorado winter.
Powerful Hydrotherapy - Strategically positioned jets target key areas including your neck, shoulders, back, legs and feet, with different Master Spas models offering different therapy configurations.
The benefit: Instead of simply sitting in hot water, you can choose a spa designed to deliver targeted massage where you want it most, making your hot tub a place you'll actually look forward to using after work, workouts or long days on your feet.
EcoPur® Mineral Filtration - The Master Spas EcoPur® Charge filtration system uses a blend of minerals together with traditional filtration to help maintain cleaner, clearer spa water.
The benefit: You'll spend less time fighting your water and more time enjoying it, with a system designed to simplify routine water care while reducing your dependence on large amounts of traditional chemicals.
Built for Year-Round Use - Master Spas are designed to maintain water temperature and operate efficiently through changing seasons, including cold-weather environments.
The benefit: This isn't a three-month backyard purchase. Your hot tub or swim spa can become something you enjoy throughout the year, including those freezing Colorado nights when getting into 104-degree water feels particularly brilliant.
Industry-Leading Innovation - From advanced hydrotherapy and water-care systems to premium controls, swim currents and wellness-focused designs, Master Spas continually develops products around how owners actually use their spas.
The benefit: You're not paying for gadgets just to make a feature list longer. You're getting technology designed to make your spa more comfortable, easier to maintain and more useful for relaxation, recovery, fitness and time with the people you care about.
See What Makes Master Spas Different
Compare Master Spas hot tubs and swim spas, explore available models and find the right fit for your home, lifestyle and budget.
DISCOVER THE MASTER SPAS DIFFERENCE →
Which Master Spas Hot Tub Is Right for You?
GETAWAY
Simple comfort and exceptional value.
LH SERIES
Everyday wellness and relaxation.
CLARITY SPAS
Comfort, performance and family friendly features.
TWILIGHT SERIES
Premium hydrotherapy for serious relaxation and recovery.
MICHAEL PHELPS LEGEND SERIES
Master Spas flagship luxury hot tub experience.
Before You Buy a Hot Tub in Colorado...
Read This FREE Guide First...2026 Colorado Hot Tub Buyer's Guide.
Everything You MUST Know before buying a hot tub in Colorado.
What You'll Learn Inside:
7 expensive mistakes first-time hot tub buyers make
Why more jets doesn't necessarily mean better massage
The truth about 110V vs. 220V hot tubs
What you should know before buying a saltwater spa
The overlooked factor that can make the difference between an easy ownership experience and years of headaches
What a quality hot tub really costs to own in Colorado
The questions you should ask any hot tub dealer before giving them a deposit...
And...much...MUCH More!
Which Master Spas Swim Spa Is Right for You?
H2X THERAPOOL
Hydrotherapy, movement and relaxation in a more compact swim spa. From low-impact exercise and hydrotherapy to family fun and serious swim training, Master Spas offers swim spas designed for very different goals. Start with how you plan to use yours.
H2X TRAINER
The all-around choice for fitness, swimming and family fun. A versatile swim spa for recreational swimming, aquatic exercise, hydrotherapy and year-round enjoyment at home.
H2X CHALLENGER
More powerful swim performance for serious training. Built for swimmers and fitness-focused owners who want a stronger current and a more challenging at-home swimming experience.
MICHAEL PHELPS SIGNATURE
Premium swim performance, fitness and hydrotherapy. The flagship Master Spas swim spa experience for buyers who want premium performance, advanced features and an exceptional year-round aquatic experience at home.
Master Spas® swim spas bring swimming, fitness, hydrotherapy and year-round family fun together in one backyard experience. Whether you're looking for a compact H2X Therapool for low-impact exercise and recovery, a versatile H2X Trainer for fitness and recreation, the stronger swim current of an H2X Challenger, or the premium performance of a Michael Phelps Signature Swim Spa, there's a model designed around how you actually want to use it. Unlike a traditional swimming pool, a swim spa gives Colorado homeowners a more compact, easier-to-maintain way to swim, exercise and relax at home throughout the year. Compare Master Spas swim spas, sizes, features and swim systems below, or visit Master Spas of Colorado in Castle Rock or Thornton to experience one in person and find the right swim spa for your space, goals and budget.
More Than a Backyard Upgrade
Create a Daily Routine You'll Actually Look Forward To
RELAX & DECOMPRESS
Turn the end of a long Colorado day into time to unplug, slow down and relax.
RECOVER & RECHARGE
Warm-water hydrotherapy, swimming, infrared heat and cold immersion give you multiple ways to build recovery into your routine.
MOVE MORE
From swimming against an adjustable current to low-impact aquatic exercise, a swim spa makes movement ridiculously convenient.
SPEND MORE TIME TOGETHER
Phones down. Water warm. Family in one place. Sometimes the best technology is 400 gallons of water nobody wants to get out of.
Why Colorado HoME Owners Choose Master Spas
Built in America. Trusted Worldwide. Designed to Make Owning a Spa Better.
There are plenty of hot tubs that look good sitting empty on a showroom floor.
What matters is what happens after you own one.
Master Spas has spent 30 years designing hot tubs and swim spas around better hydrotherapy, easier water care, efficient year-round operation, strong manufacturing support and a better everyday ownership experience.
1. The Largest Manufacturer of Hot Tubs Built in the USA
Master Spas states that it is the largest manufacturer of hot tubs built in the United States, with spas made and assembled in America using domestic and imported components. Production takes place at its Fort Wayne, Indiana manufacturing campus.
What that means for you: You are not buying from a tiny brand that may disappear when you need a replacement part eight years from now.
You’re buying from one of the largest established spa manufacturers in the country, with decades of production experience, dealer support and parts infrastructure behind it.
2. The World's Largest Swim Spa Manufacturer
Master Spas is also the largest swim spa manufacturer in the world, producing swim spas for fitness, swimming, recreation, hydrotherapy and year-round family use.
What that means for you: If you're investing in a swim spa, you're buying from a company that has made this category a core part of its business, not an accessory product added to a hot-tub catalog.
That experience shows up in the swim systems, layouts, therapy seating and variety of models available.
3. Designed With Input From Michael Phelps
Master Spas began working with 23-time Olympic gold medalist Michael Phelps in 2010. Phelps and his coach provided input in developing the Michael Phelps Signature Swim Spa, and the partnership later expanded into Legend Series hot tubs and Chilly GOAT cold tubs.
Phelps has said that training in the swim spa helped him develop what he considered the best freestyle stroke of his career.
What that means for you: The performance side of Master Spas wasn't developed purely in a conference room. The company has spent years incorporating feedback from the most decorated swimmer in Olympic history into products designed for swimming, recovery, hydrotherapy and wellness.
4. Award-Winning Hot Tub Designs
Master Spas models have received repeated Consumers Digest Best Buy recognition.
The Michael Phelps Legend Series LSX 800 was repeatedly recognized as a Best Buy in the premium hot tub category, while the Twilight Series TS 8.2 also received repeated Best Buy recognition.
What that means for you: You're not simply taking the manufacturer's word that these spas deliver good value. Specific Master Spas models have historically received third-party recognition for combining premium features, performance and value.
5. EcoPur® Charge Mineral Water Care
Master Spas' EcoPur Charge system uses a specialized mineral core containing copper and zinc to assist with water purification.
Master Spas says the system helps control scale, bacteria and algae while reducing the amount of added chemicals needed for routine spa care.
EcoPur Charge comes standard on Master Spas hot tubs.
What that means for you: Cleaner water does not have to mean turning your hot tub into a chemistry experiment every weekend.
EcoPur is designed to make routine water care easier, reduce chemical dependence and help keep the water clearer and more comfortable.
6. 30 Years of Manufacturing Experience
Master Spas was founded in 1996 and celebrated its 30th anniversary in 2026. The company has grown from a regional manufacturer into a global hot tub and swim spa producer.
What that means for you: A hot tub is a long-term purchase. Buying from a manufacturer with three decades of history gives you something a brand-new importer cannot offer: a track record.
The tub sitting in your backyard ten years from now matters considerably more than whichever one had the flashiest waterfall at the home show.
7. Serious American Manufacturing Capacity
Master Spas operates a large manufacturing campus in Fort Wayne, Indiana. Current company materials reference a 614,000-square-foot manufacturing facility, with hundreds of workers producing hot tubs and swim spas for dealers around the world.
What that means for you: Manufacturing scale matters when you need warranty support, replacement components, technical assistance or continued product development.
You're buying into an established production and support system, not simply a private-label shell attached to an overseas factory.
8. Industry-Proven Components & Replacement Parts
Master Spas® uses components from established spa-industry manufacturers such as Balboa Water Group on many models, along with equipment from other recognized suppliers.
And with an established network of OEM replacement parts available for Master Spas hot tubs and swim spas, maintaining an older spa doesn't necessarily mean hunting for some obscure proprietary component nobody can find.
The benefit: A hot tub is something you may own for 10, 15 or even 20 years. When something eventually wears out, access to replacement controls, pumps, heaters, jets and other service parts matters.
Master Spas' established parts ecosystem can make long-term service and repair considerably more practical.
Contact Us
Hot Tubs & Swim Spas of Colorado is located at: Milestone Shopping Center
4765 Front St. Unit D
Castle Rock, CO 80104
Hot Tub & Swim Spa FAQs for Castle Rock, Colorado
Shopping for a hot tub or swim spa in Castle Rock? Get answers to common questions about Master Spas®, pricing, financing, installation, Colorado winters, delivery and local service before you buy.
Where can I buy a hot tub in Castle Rock, CO?
Hot Tubs & Swim Spas of Colorado is an authorized Master Spas® dealer serving Castle Rock and the surrounding Douglas County communities.
At our Castle Rock showroom, you can explore hot tubs, compare seating arrangements, experience different hydrotherapy features and get help choosing the right model for your home and budget.
We carry Master Spas collections ranging from value-focused models to premium hydrotherapy spas. Visit our Castle Rock showroom to compare your options in person.
Where can I see Master Spas hot tubs and swim spas near Castle Rock?
You can shop Master Spas® hot tubs and swim spas through Hot Tubs & Swim Spas of Colorado in Castle Rock.
Our team can help you compare popular hot tub collections, including Getaway, LH, Clarity, Twilight and Michael Phelps Legend, along with H2X Fitness and Michael Phelps Signature Swim Spas.
Because showroom inventory changes, contact us before visiting if there's a specific model you'd like to see.
Visit our Castle Rock showroom to explore available models and speak with a local spa specialist.
How much does a hot tub cost in Castle Rock, Colorado?
Hot tub prices in Castle Rock depend on the size, seating capacity, hydrotherapy system, construction, features and collection you choose.
Entry-level hot tubs typically cost less than premium models with advanced massage systems, additional pumps and upgraded comfort features.
When comparing prices, remember to consider delivery, electrical installation, accessories, maintenance and warranty coverage, not just the advertised spa price.
At Hot Tubs & Swim Spas of Colorado, we'll help you compare available models, current offers and financing options so you can find the right hot tub for your budget.
Want help narrowing down your choices? Take our 60-Second Spa Finder.
How much does a swim spa cost in Castle Rock?
Swim spa pricing varies considerably based on size, swim-current technology, hydrotherapy features and overall performance.
A compact swim spa designed primarily for therapy and recreation will generally cost less than a larger model built for serious swimming or athletic training.
Master Spas offers several swim spa collections, including H2X Therapool, Trainer and Challenger, along with the premium Michael Phelps Signature series.
Our Castle Rock team can help you compare models, understand delivery and installation considerations, and explore available financing.
Contact us for current swim spa pricing and availability.
Can I use a hot tub or swim spa year round in Castle Rock?
Yes. Hot tubs and swim spas can be enjoyed throughout the year in Castle Rock, including during Colorado's cold winter months.
A well-insulated spa with a properly fitted cover, functioning heating system and appropriate freeze protection can maintain comfortable water temperatures even when outdoor temperatures drop.
Winter ownership does require a few precautions. Keep the spa running according to the manufacturer's instructions, maintain the proper water level and check your cover regularly.
Our Castle Rock team can help you choose a spa designed for year-round use and explain how to care for it during Colorado winters.
Do I need a permit to install a hot tub in Castle Rock, CO?
Permit requirements depend on your property's location, electrical installation and whether you're installing a portable hot tub, swim spa or permanent structure.
If your home is within Castle Rock town limits, check with the Town of Castle Rock's building department before installation. Properties outside town limits may fall under Douglas County or another local jurisdiction.
You may also need to follow HOA requirements, electrical codes and rules regarding setbacks, barriers or access.
Before buying, we recommend confirming the requirements for your specific address and discussing the installation with a qualified electrician or contractor.
Our team can help you understand the site considerations involved in preparing for delivery.
Does a hot tub need 110V or 220V electrical service?
That depends on the hot tub model.
Some smaller hot tubs operate on a standard 110/120-volt electrical connection, while many larger or higher-performance models require a dedicated 220/240-volt circuit.
A properly installed 240-volt system may allow a spa to operate its heater and massage pumps simultaneously, depending on the model. Some 120 volt configurations have limitations when the jets and heater are running together.
A licensed electrician should verify your home's electrical capacity and install any required circuit, disconnect and protection.
At our Castle Rock showroom, we'll explain the electrical requirements of the models you're considering before you purchase.
How much electricity does a hot tub use during Colorado winters?
The cost of running a hot tub in Castle Rock depends on the spa's size, insulation, cover condition, water temperature, frequency of use, outdoor weather and your electricity rate.
During colder months, a hot tub may use more electricity because its heating system must work harder to maintain the desired water temperature.
A quality insulated cover, proper maintenance and energy-conscious spa construction can help manage operating costs.
Rather than relying on a generic monthly estimate, ask about the specific model's published energy information and compare it with your local utility rates.
We'll help you understand the factors that affect year-round ownership costs before you buy.
What kind of foundation does a hot tub need in Colorado?
The cost of running a hot tub in Castle Rock depends on the spa's size, insulation, cover condition, water temperature, frequency of use, outdoor weather and your electricity rate.
During colder months, a hot tub may use more electricity because its heating system must work harder to maintain the desired water temperature.
A quality insulated cover, proper maintenance and energy-conscious spa construction can help manage operating costs.
Rather than relying on a generic monthly estimate, ask about the specific model's published energy information and compare it with your local utility rates.
We'll help you understand the factors that affect year-round ownership costs before you buy.
Do you deliver and install hot tubs and swim spas in Castle Rock?
Hot Tubs & Swim Spas of Colorado can help coordinate delivery of your new hot tub or swim spa in Castle Rock and surrounding communities.
Before delivery, you'll need a suitable location, adequate access for moving the spa, a properly prepared foundation and any required electrical work.
Swim spas may require additional planning because of their size and weight, including specialized delivery equipment.
Our team will review the delivery requirements for your selected model and help you understand the preparation needed before it arrives.
Visit our Castle Rock showroom to discuss delivery options for your property.
Do you provide Master Spas warranty service in Castle Rock?
Yes. Hot Tubs & Swim Spas of Colorado is an authorized Master Spas® dealer with access to manufacturer-supported warranty service.
Having a local dealer familiar with Master Spas products can make ownership easier when you need help with maintenance, replacement parts or a service issue.
Warranty coverage varies by model, component and the terms of the applicable manufacturer's warranty. Certain service, labor or travel charges may not be covered.
Before purchasing, we'll explain the warranty coverage for the spa you're considering and how to request service when you need it.
Can I finance a hot tub or swim spa in Castle Rock?
Financing options may be available for qualified buyers purchasing a hot tub or swim spa from Hot Tubs & Swim Spas of Colorado.
Financing can help you spread the purchase cost over time instead of paying the full amount upfront.
Available terms, interest rates, payment amounts and approval requirements depend on the financing program and your credit qualifications.
Our Castle Rock team can explain current financing options and help you compare the total cost before making a decision.
Ask about available financing when you visit the showroom.
What areas does your Castle Rock hot tub showroom serve?
Our Castle Rock showroom serves hot tub and swim spa shoppers throughout Castle Rock, Douglas County and nearby communities.
We regularly work with homeowners considering spas in areas such as Castle Pines, Larkspur, Franktown, Parker, Sedalia and surrounding neighborhoods.
Whether you're creating a backyard retreat, looking for hydrotherapy or considering a swim spa as an alternative to a traditional swimming pool, our team can help you explore your options.
Delivery and service availability may vary by address, so contact us to confirm coverage for your location.
Visit Hot Tubs & Swim Spas of Colorado in Castle Rock to find the right spa for your home.
Contact
Copyright 2026 Hot Tubs & Swim Spas of Colorado