About Us

Serving the Denver area since 1978

Serving the Denver area since 1978

About Us

International Hot Tub Company began as a family owned and operated business in 1978. In 2005 the Hiner family purchased IHT from the original owner. In 2021, Leslie’s Poolmart Inc. became the third and current owner. Click here to learn more about Leslie’s Philanthropic Partners.

In that time, IHT has received recognition from Watkins Manufacturing as National Dealer of the Year, Territory Dealer of the Year (8 times), Multiple Store Productivity Dealer, and more. We were inducted into the AQUA 100 HALL OF FAME.

IHT has also maintained an A+ rating with Better Business Bureau since joining in 1999.

IHT provides the finest products and service available in the Hot Tub, Swim Spa, and Fireplace Industries. From four Colorado front range locations, (Denver Broadway, Boulder, Denver I-25 at 8th Ave, and Highlands Ranch), IHT is able to care for all Rocky Mountain area residents.

HotSpring and Caldera Spas have been IHT’s trademark lines since the beginning. As one of Watkins Manufacturing’s oldest and largest dealers, IHT has helped establish Hot Spring and Caldera Spas as the premier portable spa and hot tub brands in the world.

Military and Senior Discounts are available upon request.


Click here to learn about opportunities to join our award-winning team!

100% Satisfaction Guarantee*

If you are not completely satisfied with a product purchased from IHT, you can exchange it. You pay the difference in the price of the product, if any (or we will refund the difference if the new products costs less).
*Some fees and restrictions may apply. See stores for details

Exceptional Service

  • “Just-Call-Us Warranty” coverage –Only IHT personnel service every Watkins Spas that we sell.
  • “On-Site Service” for all service throughout the Rocky Mountain Area.
  • No trip charge in our service area (6 months on a new spa. – after 6 months a service charge applies.)
  • Professional factory-trained service coordinators and technicians.
  • After-warranty service available.
  • Large inventory of in-stock parts for every Watkins hot tub.
  • Free water testing — just bring in a sample.

Professional Deliveries

  • Free on-site pre-delivery inspection available.
  • Free full service delivery on all hot tubs — our professional crew will carefully place your new hot tub where you want it. (May not include cash-n-carry sale models.)
  • Free water care orientation seminar or supply of water care products with every hot tub.
  • Specialists in crane and difficult deliveries.
  • Extensive referrals available for quality electricians, contractors and decking specialists.
  • Top service and delivery throughout the Rocky Mountain Region by IHT Employees.

Free Test Soak


Family Owned and Operated From 1978 to 2021. Now a member of Leslie’s Poolmart Inc.

  • The Rocky Mountain’s oldest hot tub company.
  • Over 1,500,000 satisfied customers …. ask us for references!
  • We’re hot tub experts carrying the same brands since we opened our doors.
  • Unique Referral Rewards Program : When you send in a friend who purchases a spa from us, you’ll receive a $100 gift certificate.
  • A large portion of our business comes through referrals from satisfied customers.

Award-Winning Company

  • IHT has been named the Hot Spring Spa Territory Dealer of the year eight times.
  • Top 5 selling Hot Spring spa dealer in the world since 1990!
  • Multiple time Hot Spring Spa Territory Dealer the Year.
  • Multiple time Caldera Territory Dealer of the Year.
  • Multiple time Caldera Spas National Dealer of the Year.
  • Multiple time Watkins Multiple Store Productivity Dealer of the Year.
  • Elected into the AQUA 100 , the top 100 business in the spa and pool industry.
  • Inducted into AQUA Hall of Fame.
  • Member of the Denver and Boulder Chambers of Commerce.
  • Member of the Better Business Bureau with an A+ rating

Our Total Satisfaction Plan

  • Our Total Satisfaction Plan guarantees you’ll love your new hot tub,  or we’ll give you a refund or exchange. Ask us for details! **
  • Our sales approach is informative and low pressure.
  • Sales associates are continually trained to master new product developments.
  • All warranties and Guarantees are in writing.
  • We deliver what we promise! Call us and we’ll provide references.

IHT has been named the Hot Spring Spa Territory Dealer of the year eight times, as well as the two-time recipient of the prestigious Multiple Store Productivity Award. Of more than 500 dealers worldwide, IHT has, for years, consistently been in the top five. Our volume buying power as well as our knowledgeable and well trained staff assures you quality products and great service.

We have many hot tub models in stock. Many of our hot tubs are custom ordered for you with the exact model, color and configuration to meet you lifestyle. All delivery and service of our hot tubs is performed exclusively by IHT personnel. Just another assurance of quality control.

Our service and parts department is second to none. We stock virtually all parts for every Hot Spring, and Caldera Spa ever manufactured. Our service technicians are factory trained and in house.

All spas sold by IHT carry our 100% Satisfaction Guarantee. If your any reason, you want to return or exchange your spa for another model, we’ll take care of it.

IHT also carries quality used & certified pre-owned hot tubs, Automated Covers, Gazebos, Kozy Heat and Napoleon Fireplaces, Stoves, and Inserts, Covers, Spa Chemicals, Filters, Parts and Accessories. We also create custom saunas to your specifications.

Same day shipping for chemical and filter orders placed by 10am MST is assured. We offer free freight on qualifying orders.

You can now apply for financing with Wells Fargo online. Click the Wells Fargo button on the financing page and fill out the application. You will be notified and IHT will be notified of the results. All applications go through the Denver office, but you may purchase through any local store. Financing available with approved credit. Must meet all requirements.