Make Your Mercer Island Event Pop with Party Baby
From playful garlands to full photo-ready backdrops, our custom balloon décor transforms your space into a celebration. Designed to match your style and delivered locally — one balloon at a time.
Elevate Your Event with Premier Party Rentals on Mercer Island
Elegant rentals. Discreet delivery to Mercer Island homes and venues.
Party Baby Seattle offers upscale, family-focused party rentals tailored for Mercer Island’s private residences, estates, and community venues. Whether you’re planning a lakeside birthday, an elegant garden celebration, or a gathering at the Mercer Island Community Center, our team delivers custom setups that fit seamlessly into driveways, lawns, patios, or event halls — always with white-glove service and stress-free execution.
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Modern, stylish setups for every space
Designed for Mercer Island homes, gardens, and private venues.
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Customizable themes and color palettes
Tailor your event to match your home aesthetic, theme, or school colors.
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Local delivery & hassle-free setup
We deliver across Mercer Island with white-glove setup and teardown included.
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From quote to cleanup — stress-free
Our concierge-style service ensures a seamless experience from start to finish.
At Party Baby Seattle, we provide upscale party rentals tailored for Mercer Island families. From milestone birthdays to backyard celebrations, we ensure every event is beautifully executed.
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SOFT PLAY RENTALS
Modern Soft Play rentals for Mercer Island. Designed for stylish, safe celebrations at home or in community venues.
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BOUNCE HOUSE RENTALS
Stylish Bounce House rentals for Mercer Island. Chic, safe options for estate lawns, driveways, or parks.
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BUBBLE HOUSE RENTALS
Mercer Island’s Instagram-worthy Bubble House. Floating balloons, clear dome, and photo-ready fun for kids.
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BALL PIT RENTALS
Luxe Ball Pit rentals for Mercer Island — custom colors, optional monogram decals, and thousands of balls.
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Balloon Décor
Custom Balloon Décor for Mercer Island events. Elegant garlands and polished installs for birthdays, schools, or at-home parties.
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Corporate Events
Fully insured and licensed. We support Mercer Island schools, nonprofits, and home-hosted events with professional-grade rentals.
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Ready to Plan Your Mercer Island Event?
Elegant rentals. Easy planning. Mercer Island delivery included.
What Our Customers Are Saying
Party Baby came through for me in short notice planning of my little girl's birthday party. I rented the mini castle bounce house and ball pit to set up at pur house and it was amazing! It was the perfect set up for our backyard and age group of kids (2-6). Everything from communication, transparency of pricing, ease of set up, experience using the product and takedown was seamless. Everything was super clean and looked new. Would absolutely recommend and use again. Thank you, Party Baby!
EVERYTHING WAS ALL PERFECT!!!!! THE KIDS LOVE IT AND THEY HAD AN AMAZING TIME WHEN I RENTED THEM FOR MY DAUGHTER'S FIRST BIRTHDAY. When you do the consult, they will walk you through. They have been very patience with both my husband and I. They are such wonderful teams. This was my first time with them too. I most definitely will do this again in November for my son's 5th birthday!! Go check them out yall.
Super easy communication and getting it scheduled. They came and set it all up and then took it all down at the end. All the kids and adults loved the castle bouncy house.
Awesome customer service! We great a wonderful experience
We rented the bubble house from Party Baby for our wedding reception, and it was absolutely perfect. We had a large rooftop space to fill and a lot of kids attending, so I wanted something that would help keep everyone entertained — and it ended up being a huge hit with both the kids and adults. The kids especially loved it and spent so much time playing in it throughout the reception.
I’m only posting one photo because I’m shy, but honestly we got so many amazing photos and videos with it. It added such a fun energy to the reception and looked great in the space.
Working with Jeannie and the team was also incredibly easy. One quick phone call was enough to get everything set up, and the staff onsite was friendly, professional, and very kind to our guests.
Highly recommend if you want something memorable and fun for a wedding or event — you won’t regret it!
I’m only posting one photo because I’m shy, but honestly we got so many amazing photos and videos with it. It added such a fun energy to the reception and looked great in the space.
Working with Jeannie and the team was also incredibly easy. One quick phone call was enough to get everything set up, and the staff onsite was friendly, professional, and very kind to our guests.
Highly recommend if you want something memorable and fun for a wedding or event — you won’t regret it!
Party baby was fantastic! Great set up, great communication and reasonable prices.
As a social event planner, I worked with Party Baby this past week for a client’s son’s birthday party. Jeannie was so easy to work with, adhered to our color palette requests, and set-up according to our timeline. The play-set was a huge hit with the kids and fit perfectly with our spring chicken theme. I highly recommend Party Baby and would use their service again in the future.
Fantastic experience and it was the highlight of the party!! The team was responsive and helpful. They showed up right on time and got everything set up. Everything they provided was perfect and I will absolutely be using them for parties in the future!
We chose the cotton candy package from Party baby Seattle . It perfectly matched our pastel color scheme, I appreciated the options to customize the colors , set up and take down was taken care off well and most importantly, the kids loved it !
Mercer Island Party Rental FAQs
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Yes, Mercer Island is part of our regular delivery area, including the North End, Mercerdale, First Hill, and the East Seattle neighborhoods, with delivery, setup, and takedown included with every rental.
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Yes, park events work beautifully. Inflatables need power, so park bookings run on a reliable generator, and the shelter or picnic-area reservation with the city is handled by you before the event. Luther Burbank Park is a local favorite for exactly this.
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White bounce houses, soft play for ages 1 to 5, and ball pits with ball colors matched to your theme lead most Mercer Island bookings, for birthday parties, first birthdays, and backyard celebrations.
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Trusted by the Seahawks, Mariners, Salesforce, and Google, we deliver kid friendly corporate events, daycare and school events, and employee family days at Mercer Island workplaces, schools, and venues. See corporate events for the full picture.
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Yes, indoor setups run year round in living rooms, garages, community rooms, and venues, which is how Mercer Island families keep winter birthdays going. We never set up outdoors in the rain, so an indoor backup is always the smart plan.
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Two to four weeks for summer weekends, and popular setups go first. Request a quote with your date and space and we’ll confirm availability, and gift cards are available if the party’s a gift.
Ready to Plan Your Mercer Island Event?
Let us help bring your vision to life — just fill out the form below and our team will be in touch soon.
GET INSPIRED!
What would your little one do first if they saw this setup? 👀
Gaia’s 3rd birthday was the perfect excuse for a little extra fun with our Bubble House and ball pit. 🫧
Thank you for choosing Party Baby to be part of her special day! 🤍
Planning a birthday celebration? We’d love to be part of yours too. ✨
Eid Moo Barak! 🐮
Eid celebrations are even sweeter when the little ones have a space made just for them. 🤍
A playful farm-themed setup filled with soft play, color, and plenty of room to explore while the whole family celebrates together.
Celebrating something special? We’ll bring the play. ✨ Reserve your date → partybabyseattle.com
Air Reps knows how to celebrate 🤍
Our White Palace Bounce made an appearance for this fun family celebration, bringing a playful touch to the event and giving everyone another reason to smile.
Thank you, @airreps for choosing us to be part of your celebration again this year!
Planning your next corporate event? We’d love to be part of it. ✨
A little bit of wild, a whole lot of fun. 🐆🌿
This customized Sophie & Fawn soft play was the perfect match for this Wild One celebration, giving the little ones their own space to climb, play, and be part of the party.
Planning a first birthday? Let’s create a setup that fits your theme and your little one perfectly. 🤍
Reserve your date at partybabyseattle.com
#partybabyseattle #softplayseattle #wildonebirthday #firstbirthday #seattlekids
A beautiful celebration by the water. ✨
For this beautiful Tea Ceremony at China Harbor in Seattle, we customized our Moon & Back Soft Play with subtle touches of red and gold to complement the celebration. ❤️✨
Thoughtful details, a timeless color palette, and a play space designed to feel right at home in such a special setting.
Have a theme of your own? We can customize the setup to make it feel like it was made just for your event. 🤍
Reserve your date → partybabyseattle.com
Baby showers deserve a little Party Baby magic, too. 🤍
Whether you’re planning something small and sweet or a full celebration, we can create a setup that fits your day and gives the little ones their own space to play.
Planning a baby shower? Let’s make it special. ✨
Reserve your date → partybabyseattle.com
#babyshower #babyshowerideas #babyshowersetup #babyshowerevents
This is what we call a party made for play. ☁️
Our Cloud 9 Adventure Course brings a big white play space, colorful balls, and plenty of room for little ones to jump, climb, and have the best time.
Planning your next celebration? Tap the link in our bio to book or visit partybabyseattle.com.
To the mom in her notes app at midnight. 🤍
The theme, the cake, the list of who`s coming. The details only you know you planned. The day feels the way it feels because you thought of everything.
They won`t remember the planning. They`ll remember that everyone they love was in one place.
The quiet work counts. #partybabyseattle #motherhoodmoments #birthdaymom #momlife #seattlemoms
If you want to bring a little farm magic to your celebration, our One Spring Chicken setup is the perfect choice. 🐥
A chance for little ones to meet friendly farm animals, enjoy the outdoors, and explore a Custom Soft Play setup filled with colors and playful details.
A day full of fresh air, happy little explorers, and unforgettable moments.
#partybabyseattle #softplay #eventplanner
We look forward to this one all year long. When it comes to celebrating their team, @salesforce never misses, making Adventure Club officially one of our favorite events of the year! ☁️✨
Seeing everyone swap their laptops for family time is exactly why we do what we do. We love partnering with brands that make room for everyone, big and little, and value these experiences as much as we do.
Salesforce, thank you for having us back! 💙
Planning a family-friendly corporate event? Let`s make it unforgettable. ✨
Link in bio to secure your date.
#Salesforce #SalesforceAdventureClub #PartyBabySeattle #SeattleCorporateEvents #SeattleEvents #BounceHouse #BringYourKidToWork #CorporateEvents
