Fun for Everyone

Elevate your pool experience with R & S Pool & Spa. We offer a diverse selection of high-quality pool equipment and supplies, backed by exceptional customer service. Discover our collection today.

Our Service Plans

Gold

Plan Details:
Plan Price:

$2195

Gold+

Same as Gold, plus pool opening and closing included.
Plan Price:

$3195

Approx. $1200 in total savings

Platinum

Plan Details:
Plan Price:

$4950

Platinum+

Same as Platinum, plus pool opening and closing included.
Plan Price:

$5950

Approx. $1500 in total savings

Elite

Plan Details:
Plan Price:

$8250

R&S Elite service maintenance package for total enjoyment of your outdoor oasis.

Pool

We offer above ground pools and a variety of pool related products and supplies.

Spa

Nordic spas, and hot tub supplies, are available for purchase at our store.

Services

Our expert staff provide pool and spa services, including cleaning, repairs, and more.

About Us

R&S Pool & Spa

We’re dedicated to making your pool openings, closings, and equipment installations and repairs seamless, allowing you to enjoy more time in the sun. 

Our expert team is committed to providing top-notch services tailored to your needs, ensuring your pool or hot tub is always ready for relaxation and fun.

Full-Service

Swimming Pool Supply Store in St. Charles, MO

Your St. Charles Pool & Spa Experts

Finding the right pool and spa supplies shouldn’t feel like searching for a needle in a haystack. If you’re a pool owner in St. Charles, MO, you know the frustration of driving from store to store only to discover that nobody carries the specific part you need — or worse, that the staff can’t tell a cartridge filter from a sand filter. That’s exactly the problem we solve every single day at our swimming pool supply store right here in St. Charles. Whether you live near the historic streets of Main Street or out by the newer neighborhoods along Highway 370, we’ve made it our mission to be the one-stop shop where local pool and spa owners find everything they need under one roof. With the largest selection of pool and spa parts in the greater St. Louis area, we take pride in helping our neighbors keep their backyard oases running smoothly from the first warm days of a Missouri spring through the last swim of fall. Our knowledgeable team understands the unique challenges that come with maintaining a pool in this region — from our notoriously hard water to the dramatic temperature swings that can wreak havoc on equipment. We’re not just a store; we’re your local pool care partners, and we’ve been earning that trust for over five decades.

Your Complete Swimming Pool Supply Store Serving St. Charles

The Largest Selection of Pool and Spa Parts in the St. Louis Area

When we say we carry the largest selection of pool and spa parts in the area, we mean it. Our store is stocked with thousands of components, accessories, and supplies that cover virtually every make and model of pool and spa equipment on the market. From hard-to-find gaskets and O-rings to complete pump assemblies and filter systems, we carry inventory that other stores simply don’t bother with. This means fewer wasted trips and less downtime waiting for your pool to get back up and running.

Filters, Pumps, Heaters, Chemicals, Covers, and More

Our inventory spans every major category of pool and spa equipment. Need a new variable-speed pump to cut your energy bills? We’ve got multiple options. Looking for the right chemical balance to tackle algae after a stretch of St. Charles summer heat? We carry a full line of professional-grade chemicals. From replacement liners and winter covers to heaters, salt systems, and automation controls, our shelves and warehouse are packed with the products that keep pools and spas performing at their best.

Trusted by Local Pool Owners Since 1971

R&S Pool & Spa has been a cornerstone of the community since 1971. That’s over 50 years of serving generations of families who depend on us for honest advice and reliable products. When you walk through our doors, you’re not just another transaction — you’re a neighbor we’ve likely been helping for years, or perhaps a new pool owner we’re excited to welcome into the fold. Our longevity speaks to the relationships we’ve built and the trust we’ve earned throughout this community.

Pool and Spa Products We Carry in Stock

Clean in-ground swimming pool with clear water, showcasing professional pool maintenance and water care.

Pool and Spa Products We Carry in Stock

Pool Pumps, Filters, and Circulation Equipment

Proper circulation is the backbone of a healthy pool. We stock single-speed, dual-speed, and variable-speed pumps from leading manufacturers. Our filter selection includes cartridge, sand, and DE (diatomaceous earth) systems in a full range of sizes. We also carry valves, plumbing fittings, skimmer baskets, and all the circulation accessories you need to keep water flowing efficiently. Learn more about pool maintenance from experienced pool owners who share tips and recommendations online.

Pool and Spa Chemicals for Clean, Safe Water

Maintaining proper water chemistry is essential for swimmer safety and equipment longevity. We carry chlorine, bromine, shock treatments, algaecides, pH adjusters, alkalinity balancers, calcium hardness increasers, and specialty products like metal sequestrants and enzyme treatments. Our chemical selection includes both traditional and alternative sanitization options so you can choose what works best for your pool or spa.

Heaters, Heat Pumps, and Temperature Control Systems

Extend your swimming season well beyond the typical Missouri summer. We stock natural gas heaters, propane heaters, electric heat pumps, and solar heating components. Whether you want to take the chill off in early May or keep your spa running comfortably through winter, we have temperature control solutions for every budget and setup.

Pool Covers, Liners, and Seasonal Accessories

Protect your investment with quality covers and liners. We carry winter covers, safety covers, solar covers, and automatic cover components. Our liner selection includes a wide variety of patterns and thicknesses for both above-ground and in-ground pools. Seasonal accessories like ladders, rails, lights, pool toys, and maintenance tools round out our comprehensive inventory.

How We Help You Find the Right Pool Supplies

Expert Staff Who Know Pool and Spa Equipment Inside and Out

Our team members aren’t seasonal hires reading off a script. They’re trained pool and spa professionals who understand how equipment works, what fails, and how to fix it. Many of our staff members have been with us for years, building deep expertise that translates into accurate recommendations and faster solutions for you.

Free Water Testing and Personalized Chemical Recommendations

Bring in a water sample from your pool or spa, and we’ll test it for free using professional-grade analysis equipment. We don’t just hand you a printout and send you on your way — we walk you through every reading, explain what it means, and give you a step-by-step treatment plan tailored to your specific water conditions. St. Charles area water has its own unique mineral profile, and we factor that into every recommendation.

Fast Parts Identification and Special Order Services

Not sure what part you need? Bring in the old one, snap a photo, or just describe the problem, and our team will identify the correct replacement quickly. If we don’t have it on the shelf — which is rare — we can special order virtually any pool or spa part and often have it within a few business days.

Fair Pricing and No-Hassle Shopping Experience

We believe in straightforward, competitive pricing without gimmicks. You won’t find hidden fees or aggressive upselling here. Our goal is to get you the right product at a fair price so you keep coming back season after season.

Benefits of Shopping at a Local Pool Supply Store near St. Charles

Personalized Service You Cannot Get from Big Box Retailers

Big box stores might carry a limited selection of pool supplies, but they can’t match the specialized knowledge and personalized attention you get here. When you shop with us, you’re talking to someone who doesn’t just understand pools and spas — but understands the challenges of the local climate and water can have on your pool or spa.

Over 50 Years of Pool and Spa Industry Knowledge

Since 1971, we’ve seen every type of pool problem, equipment failure, and water chemistry challenge imaginable. That depth of experience means we can diagnose issues faster, recommend better solutions, and help you avoid costly mistakes.

Get the Right Parts the First Time and Save Money

One of the biggest hidden costs of pool ownership is buying the wrong part. When you shop with experts who can correctly identify what you need the first time, you save money on returns, unnecessary purchases, and potential damage from using incompatible components.

Pool Supply Service Areas Around St. Charles, MO

Exterior view of the R&S Pool & Spa store with a curved front entrance, parking spaces, and clear store signage.

Serving St. Charles, St. Peters, O’Fallon, and Wentzville

Our store is conveniently located for residents throughout St. Charles County. Whether you’re coming from the neighborhoods of St. Peters, the growing communities of O’Fallon, or making the drive from Wentzville, you’ll find that our selection and expertise make the trip well worth it.

Pool owners in Lake St. Louis, Cottleville, and Weldon Spring have been shopping with us for decades. These communities are just a short drive from our store, and many of our most loyal customers come from these neighborhoods where backyard pools are a staple of summer living.

Proudly Serving the Greater St. Louis Metropolitan Area

We welcome customers from across the greater St. Louis metro area. Pool owners from both sides of the Missouri River regularly visit us because they know our selection and service are unmatched in the region.

Frequently Asked Questions About Our Pool Supply Store

What Pool and Spa Brands Do You Carry Parts For?

We carry parts and products from all major manufacturers, including Pentair, Hayward, Jandy, Zodiac, Raypak, Sta-Rite, Waterway, and many more. If you have a specific brand need, give us a call and we’ll confirm availability.

Absolutely. Bring the old part into our store, show us a photo, or provide the make and model of your equipment, and our team will identify the correct replacement. This is one of our most popular services and something we do dozens of times every day.

Yes! Simply bring a water sample to our store and we’ll run a comprehensive analysis at no charge. We’ll then provide you with a customized treatment plan to get your water balanced and crystal clear.

Our store hours vary by season, so we recommend calling ahead or checking our website for the most current schedule. To place a special order, simply call us or stop by in person. Our team will provide an estimated arrival time and pricing before you commit.

Visit Our Pool Supply Store Today

Call or Stop By for Expert Pool and Spa Advice

Have a question about your pool or spa? Don’t guess — ask the experts. Give us a call or walk into our store and let our experienced team help you find the answers and products you need. There’s never a charge for our advice, and we’re always happy to help.

Request a Quote or Ask About Parts Availability

Need to check if we have a specific part in stock? Want a quote on a new pump, heater, or filter system? Contact us today by phone or visit our store. With over 50 years of experience and the largest selection of pool and spa parts in the area, R&S Pool & Spa is your trusted local resource for everything pool and spa related. Stop by today and experience the difference that knowledgeable, personalized service makes.