Bounce House Rentals in Weldon Spring, MO
Professional delivery and setup on bounce houses, water slides, obstacle courses, and party equipment — delivered to Weldon Spring backyards, Francis Howell school events, and community gatherings near the August A. Busch Memorial Conservation Area, Katy Trail, and Weldon Spring Site from our Wright City headquarters.
📍 Delivering to Weldon Spring (63304) & St. Charles County · ~25 min from our Wright City HQ · Delivery fee calculated at checkout
Party Rentals Available in Weldon Spring, Missouri
Every rental includes professional delivery, setup, and pickup — you just enjoy the party.
Complete Your Weldon Spring Party
Add the finishing touches that take your event from fun to unforgettable.
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2019Wright City, MO
Weldon Spring’s Go-To Bounce House & Party Rental Company
Backyard Party Rentals is based in Wright City — about 25 minutes from Weldon Spring via I-64. Weldon Spring is one of St. Charles County’s most affluent and naturally beautiful communities, nestled along the Missouri River corridor between the historic Daniel Boone Home in Defiance and the city of St. Charles. The area is defined by its proximity to thousands of acres of conservation land, the Katy Trail, and some of Missouri’s most spectacular river valley scenery.
Weldon Spring is fully served by the Francis Howell R-III School District, one of Missouri’s top-ranked districts. Francis Howell serves all of Weldon Spring, New Melle, and Weldon Spring Heights, along with portions of Cottleville, Dardenne Prairie, O’Fallon, St. Charles, and St. Peters — nearly 18,000 students across 22 campuses. We deliver for field days, PTO carnivals, and school events throughout the district. Full COI provided at no charge.
Why Weldon Spring Families Choose Backyard Party Rentals
Here’s what makes us the right choice for your Weldon Spring event.
Cleaned & Sanitized Every Time
Every inflatable is deep-cleaned and sanitized before each rental. Bounce floors, slides, stairs, handles — no exceptions, no shortcuts.
Every rental, every timeDelivery, Setup & Pickup Included
Our crew delivers on time, sets everything up, and comes back to take it all down. No surprise charges on delivery day.
Included with every rentalFully Licensed & Insured
Full liability insurance and free COI for school events, parks, and any venue requiring documentation.
COI available at no chargeBook Online in Under 5 Minutes
Browse real inventory, check live availability, and reserve 24/7. See the complete total before you pay.
No hidden fees. Ever.Hassle-Free Weather Reschedule
Reach out the night before and we’ll move your rental at no charge. Zero risk, zero stress.
Zero-risk bookingBased Right Down the Road
Our Wright City headquarters is a short drive from every community we serve. Your neighbors, not a distant metro company.
Locally owned since 2019Events We Deliver to in Weldon Spring, MO
From backyard birthday parties to school field days and community events.
Weldon Spring Birthday Parties
Weldon Spring has some of the most established and well-appointed properties in St. Charles County, with spacious lots, mature trees, and yards well-suited for outdoor entertaining. Birthday parties, family gatherings, and milestone celebrations are a natural fit.
Francis Howell School Events
Weldon Spring is fully within the Francis Howell R-III School District — one of Missouri’s highest-ranked districts. Francis Howell serves all of Weldon Spring and encompasses New Melle, Weldon Spring Heights, portions of Cottleville, Dardenne Prairie, and beyond. We deliver for field days, PTO carnivals, and celebrations with full COI provided.
August A. Busch Conservation Area
The August A. Busch Memorial Conservation Area covers 6,987 acres adjacent to Weldon Spring, offering wetlands, forest, lakes, and wildlife viewing. The area provides a stunning backdrop for outdoor community events. We deliver to private events near the conservation area and provide COI for organized gatherings.
Weldon Spring Conservation Area & Katy Trail
The Weldon Spring Conservation Area (8,397 acres) offers 15 miles of trails including the Lewis & Clark Trail and Lost Valley Trail, plus Missouri River boat access. The Hamburg Trail connects to the Katy Trail and the August A. Busch Wildlife Area. Events near these trails and outdoor recreation areas are a specialty for us.
Church & Community Events
VBS, fall festivals, trunk-or-treat, and community gatherings throughout Weldon Spring. The area’s tight-knit residential character and proximity to beautiful natural settings creates a strong tradition of community events. We provide COI for events of all sizes.
Corporate & Private Estate Events
Weldon Spring’s established, affluent character makes it a natural location for higher-end corporate picnics, private estate events, and larger milestone celebrations. We deliver the full range — from bounce houses to tents, concessions, mechanical bull, and stage rentals.
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What You Need to Know About Renting Inflatables in Weldon Spring, MO
Weldon Spring community: Weldon Spring is located in southwestern St. Charles County along Highway 94, between the Daniel Boone Home area (Defiance) and the city of St. Charles. It’s one of Missouri’s most desirable residential areas — highly educated, higher-income, and surrounded by thousands of acres of conservation land. Most Weldon Spring properties are well-established with spacious yards. Grass is our first choice for setup; each unit needs a 110v outdoor outlet within about 50 feet.
Francis Howell R-III School District: Weldon Spring is fully within the Francis Howell R-III School District, which serves all of Weldon Spring, New Melle, and Weldon Spring Heights, plus portions of Cottleville, Dardenne Prairie, and surrounding areas. The district has nearly 18,000 students, three high schools (Francis Howell, Francis Howell North, Francis Howell Central), five middle schools, and ten elementary schools. Full COI provided at no charge for all school events.
The conservation areas: Weldon Spring is flanked by two massive conservation areas. The August A. Busch Memorial Conservation Area (6,987 acres) borders Weldon Spring to the north and features wetlands, forest, shooting range, lakes, and wildlife. The Weldon Spring Conservation Area (8,397 acres) to the south along Hwy 94 offers the Lewis & Clark Trail, Lost Valley Trail, Missouri River boat access, and connections to the Hamburg Trail and Katy Trail. Together they make Weldon Spring one of Missouri’s most naturally rich communities.
Getting here from Wright City: Our headquarters at 141 Auburn Dr is approximately 25 minutes from Weldon Spring via I-64 East to Hwy 94. We also serve Defiance, New Melle, Cottleville, St. Charles, O’Fallon, and all of St. Charles County.
Yes. We deliver bounce houses, water slides, obstacle courses, tents, and all party equipment to Weldon Spring (63304) and throughout St. Charles County. About 25 minutes from our Wright City headquarters via I-64. Delivery fee calculated at checkout.
Yes. We carry full liability insurance and provide COI at no charge for all Francis Howell R-III school events. Francis Howell serves all of Weldon Spring, New Melle, Weldon Spring Heights, and portions of Cottleville, Dardenne Prairie, and surrounding areas.
Yes. We deliver to private events and community gatherings near both the August A. Busch Memorial Conservation Area and the Weldon Spring Conservation Area. For events at conservation or state-managed properties, we provide COI and any documentation required.
2 to 4 weeks ahead for spring and summer weekends. Water slides and wet combos book fastest — lock in your date when you see it.
Reach out the night before and we’ll move your rental at no charge. Zero risk.
Defiance, New Melle, Cottleville, Dardenne Prairie, O’Fallon, St. Charles, St. Peters, and all of St. Charles County.
We Also Deliver Near Weldon Spring
Serving communities throughout St. Charles County and surrounding areas.

Our bounce house rentals in Weldon Spring, MO serve birthday parties, Francis Howell school field days, community events near the August A. Busch Memorial Conservation Area and Weldon Spring Conservation Area, and gatherings throughout Weldon Spring (63304) and St. Charles County. Backyard Party Rentals LLC, family-owned and headquartered in Wright City since 2019, provides water slide rentals, obstacle course rentals, combo bouncer rentals, inflatable game rentals, tent rentals, concessions, tables, chairs, and a mobile stage — with professional delivery, setup, and pickup included. We serve Weldon Spring, Defiance, New Melle, Cottleville, O’Fallon, St. Charles, Wentzville, and communities throughout St. Charles County.














