From Two Inflatables to 50+ — and Counting
We didn’t start with a business plan. We started with our kids, a opportunity we couldn’t pass up, and a belief that Wentzville families deserved a party rental company that actually cared. Five years and 311+ five-star reviews later, we’re still just Tyler and Amanda from Wright City — trying to throw the best parties in St. Charles County.
📞 Call or text Amanda directly: (636) 698-2542 · amanda@backyardpartyrentalsllc.com
2019 Wright City, MO
It Started With Our Kids — and a Once-in-a-Lifetime Opportunity
In 2019, Amanda’s former employer was winding down his inflatable rental business and selling off his last inflatables. We started with just two units — a bounce house and a slide — and Backyard Party Rentals LLC was born. Not from years of business planning, but from a leap of faith and a belief that Wentzville families deserved something better.
We’re Tyler and Amanda Koester, and we live right here in Wright City. We own other businesses, but this one is different. From day one our kids have been part of it — helping clean the units, rolling them up after events, and sometimes showing up on a job to help carry equipment. There’s a good chance if you book with us, you’ll see a Koester kid on site.
What makes us proudest isn’t the 311+ five-star reviews or the 50+ inflatables we’ve grown into. It’s going from nothing to something with our family alongside us the whole way — and the dream that one day this business will be our kids’ first real job and eventually theirs to run.
“We started with two units and a dream. Amanda’s old boss was selling off his rental company, our kids were excited, and we said let’s go. Five years later we couldn’t be more grateful we did.”
— Tyler & Amanda Koester, Founders · Backyard Party Rentals LLCWhat We Stand For
Five years in, these aren’t just words. They’re the reason 311 families have left us a five-star review without a single negative one.
Cleanliness Is Non-Negotiable
Our kids play in these things. Our customers’ kids play in these things. Every inflatable is deep-cleaned and sanitized before every single rental — bounce floors, slides, stairs, handles, netting. No exceptions, ever. As parents, we wouldn’t have it any other way.
Every rental, every timeDelivery Done Right
We show up on time, set everything up properly, walk you through the safety guidelines, and come back at the end to take it all down. You don’t lift a finger. That’s how it should work and that’s how it always works with us.
Included with every rentalFully Insured — Always
We carry full liability insurance and provide Certificates of Insurance for schools, churches, parks, and any venue that needs documentation. Just ask when you book — it’s free and we’ll have it ready before your event.
COI at no chargeYou Talk to Amanda
When you call or text (636) 698-2542, you’re talking to Amanda — not a call center, not a booking service, not an automated system. A real person who knows every unit in our fleet, every delivery area we cover, and genuinely wants your event to go perfectly.
Real people, real answersWeather Won’t Ruin Your Day
Missouri summers are unpredictable. If bad weather threatens your event, reach out the night before and we’ll move your rental to a new date at no charge. We’ve been through enough Missouri storms to know you can’t control the weather — so we take that stress off your plate entirely.
Zero-risk bookingThis Is a Family Business
We own other businesses, but this one is personal. Our kids grew up with these inflatables. They clean them, roll them, and sometimes show up on a job to help. When you rent from us you’re supporting a Wright City family — and we take that seriously.
Family-owned since 2019311+ Five-Star Reviews — Not a Single Negative One
Every review is from a real customer. This is what five years of showing up for families in St. Charles County looks like.
Proudly Serving 40+ Communities from Wright City
Our headquarters at 141 Auburn Drive in Wright City puts us right in the middle of everything we serve. From Dardenne Prairie to Marthasville, from Hawk Point to Weldon Spring — we deliver to every corner of St. Charles, Warren, and Lincoln counties.
Backyard Party Rentals LLC is a family-owned bounce house and party rental company headquartered at 141 Auburn Drive in Wright City, Missouri, founded in 2019 by Tyler and Amanda Koester. We provide bounce house rentals, water slide rentals, wet combo bouncer rentals, obstacle course rentals, inflatable game rentals, tent rentals, concession machine rentals, table and chair rentals, stage rentals, mechanical bull rentals, and dunk tank rentals throughout Wentzville, Wright City, O’Fallon, St. Peters, Lake St. Louis, St. Charles, Cottleville, New Melle, Defiance, Foristell, Warrenton, Troy, Moscow Mills, Dardenne Prairie, Weldon Spring, Augusta, Marthasville, Winfield, Hawk Point, and all of St. Charles County, Warren County, and Lincoln County, Missouri. 311+ five-star Google reviews. Fully licensed and insured. COI available at no charge for schools, churches, and parks. Call or text (636) 698-2542 or book online 24/7.
