Bounce House & Water Slide Rentals in St. Augustine

Foam Party Rentals

Foam Party Rental by BackYard Carnivals

BackYard Carnivals brings the Bubble Blast Foam Party (also known as Bubble Bash) to backyards, schools and churches across St. Augustine, Saint Johns County, Jacksonville and Clay County. Our foam machine (a foam cannon) fills the setup area with foam that stacks up to 8 feet high.


The Bubble Blast Foam Party is the rental people line up to watch before they get in. BackYard Carnivals has run First Coast foam parties since 2001 out of St. Augustine, and the foam cannon loads onto the same truck as the bounce house. One company, one delivery window, one crew setting up and picking up.

Foam Party Rental Pricing:

$650 for the first two hours

  • Two-hour minimum, then $150 for each additional hour.
  • BackYard Carnivals staff members run the attraction for your rental period.
  • Free local delivery; a fee may apply farther out.
  • Ask about multi-unit discounts.
Foam Party Rental by BackYard Carnivals
Foam Party Rental by BackYard Carnivals
Foam Party Rental by BackYard Carnivals

Add foam to a bounce house, combo or slide

A lot of foam party companies sell foam and nothing else. BackYard Carnivals rents bounce houses, combos, water slides, interactive games and the big attractions, so a foam party can ride along with whatever else you’ve booked on one delivery.


That matters on a party day. One company to call, one arrival window to plan around, one crew walking through the gate, and one bill at the end. Add a water slide and the afternoon pretty much runs itself.

Everyone will have a blast

The cannon starts and the foam climbs fast. Kids disappear into it, find each other, lose a flip-flop, and come back out grinning. It stacks up to 8 feet high, so the little ones vanish and the taller ones go in up to the shoulders.


It works for the whole family, young and the young at heart. Parents who said they were just watching usually end up in there too.

Where a foam party works

Foam works for any size event. For a backyard birthday there is no need for a big unit on the lot or a large space to put it. School field days, church youth nights, summer camps, team parties and neighborhood festivals all run foam well, because a large group rotates through it quickly and nobody needs to be a certain size to join in.


Our special foam solution is non-toxic, pH balanced and won’t irritate skin. It’s lawn safe and people safe, so guests of all ages can jump right in. All we need is a water source within 50 feet of the setup spot, and glow foam is available on special request.

What your party spot needs

The attraction requires electricity and water. One dedicated 20 amp circuit, and a hose or spigot within 50 feet of the setup spot.


No outlet where you want the foam? We rent portable generators.


We handle delivery, setup and takedown.

Powered by the Foam Cannon

A foam cannon rental from BackYard Carnivals turns your backyard into a Bubble Blast foam party.


The cannon shoots foam out over the party area and keeps it coming until the pile stacks up to 8 feet high. Little kids vanish into it. Big kids dive in after them. And the parents who swore they were just watching? They usually end up in there too!


BackYard Carnivals delivers the foam machine, sets it up on grass or concrete, and takes it down when the fun’s over.

Foam Cannon at Bubble Blast Party by BackYard Carnivals

Watch a Bubble Blast Foam Party in Action

Frequent Questions

  • Is a bubble party the same as a foam party?

    No. A foam party uses a cannon foam machine to pile up foam you can stand in, up to 8 feet high. A bubble party means floating soap bubbles in the air, which is a different machine. BackYard Carnivals runs the Bubble Blast foam party, also known as Bubble Bash.

  • How much does a foam party rental cost?

    $650 for the first two hours, which is the minimum, then $150 for each additional hour. Our staff run the foam cannon for the whole party.

  • Can I add a bounce house or a water slide to a Foam Party?

    Yes. BackYard Carnivals rents bounce houses, combos, water slides and even interactive games alongside foam, and they can come on the same delivery.

  • What does the foam party setup spot need?

    Water within 50 feet, one dedicated 20 amp circuit, and grass or concrete underfoot. If there is no power nearby we rent portable generators.

  • What should kids wear to a foam party?

    Swimsuits, or clothes that can get wet. Foam hides the ground once it builds up, so most families go with water shoes or bare feet on grass. Leave glasses, phones, watches and anything loose with an adult. Once the foam is up, you will not find them until it drains.

  • How far ahead should I book a foam party?

    As soon as you have a date. Summer weekends book quickly for our foam parties. So, May through July is the hardest window. Last-minute calls are still worth making.

  • What happens if bad weather is forecasted on my event date?

    If severe weather is forecast you have two options. Reschedule 24 hours or more before the event, based on availability, and your deposit is applied as credit to the new date, which must be within 60 days of the original. Or cancel and forfeit the deposit. Full terms are on our Rental Information page. 

BackYard Carnivals is Ready! Are You?

Call 904-992-0056 with your date and your address and we’ll tell you whether the foam cannon is open.