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 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 !
Lovely backdrop for my son’s first birthday party!! The girls setting up were so nice and efficient as well!
My daughters Godmom Nicole found your company for my daughters 1 year birthday party and we loved our play area for the kids. Thank you!!!
My dream party for my daughter's first birthday, and you guys nailed it! The kids loved it so much. The arch balloons are perfect every one loves it. It worth it. U guys rock!!! Love it! I'm Looking forward for more birthdays to come!
We had an amazing experience with Party Baby Seattle for my daughter's first birthday! They were professional, timely and my baby and her friends loved the bouncy house and play areas. We will definitely be using them for years to come!
Party Baby Seattle was such a pleasure to work with! They offer so many different soft play options and color schemes. The setup was beautiful, clean, and thoughtfully arranged. Jeannie's communication was seamless, and they truly went above and beyond to bring our vision to life. We highly recommend them for any event!
With Love,
Team Prego 💜
With Love,
Team Prego 💜
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!
Howdy, partner! 🤠🎉 Lorenzo’s 1st Birthday had us kicking up some serious fun!
With a Western/Rodeo theme and the Sophie & Fawn Soft Play Area, the little cowboys and cowgirls had a rootin’ tootin’ good time! 🐴🌵
Big birthday energy, tiny boots, and soft play smiles all around — y’all made it unforgettable!
Planning 1st rodeo of your own? Let Party Baby round up the fun! 💫
#Softplay #Bouncehouse #KidsParty #Partyrentals #WesternBirthday PartyBabySeattle
Who says play is just for kids? 😉🎉This was such a cool event to be a part of!
The Out & Equal Conference in Seattle brought the fun with our Super Luxe Ball Pit + Stairs, and it was an absolute hit! From laughter-filled breaks to playful moments that sparked connection, this setup delivered joy, energy, and unforgettable vibes all around ✨
We love seeing our pieces bring people together—no matter the age or occasion. Cheers to a successful event filled with color, smiles, and a little extra fun! 🥳
Looking for something fun and unique to add to your next conference, expo or event? We’ve got you covered! 💫
#SeattleConferences #Ballpit #Out&Equal #Partyrentals #PartyBabySeattle
A little lei-day turns one! 🌸😊
Tekina’imoana’s first birthday was a sweet Hawaiian dream! 🩷
Our Pink Castle Bounce House made the party complete and the day unforgettable! 🥳
Celebrate your little one in style — let us make their next party a dream come true! 💖✨
#Softplay #Bouncehouse #KidsParty #Partyrentals
Double the ONE, double the fun! 🎉🦌🤍
Luka & Leo’s first birthday celebration was filled with sweet moments, tiny giggles, and so much joy in our Sophie & Fawn Soft Play Area. ✨
We love being part of milestones like these and helping families create memories that last forever 🥰
#Softplay #Bouncehuse #KidsParty #Partyrentals
Sweet first-birthday moments, happy little jumps, and so much love—made even more magical with The White Palace Bounce House shining at the center of it all.
The smiles, the laughter, the memories… absolute perfection ✨
We’re so honored to help celebrate milestones like this and bring the joy to such a special day 🥰
#Softplay #Bouncehuse #KidsParty #Partyrentals #PartyBabySeattle
Avery is TWO and the party was out of this world! 🚀🪐 It was nonstop fun at this space themed celebration 🥳
The custom soft play area and Duke bounce house were full of laughs, smiles, and the happiest little moments. Seeing kids light up like this is exactly why we do what we do
If you’re dreaming of a stress-free, show-stopping party your family and guests will love, Party Baby has you covered. Let’s make your next celebration just as magical 💕🎈
#Softplay #Bouncehuse #KidsParty #Partyrentals #PartyBabySeattle
Charlotte’s 1st Birthday🌼😊
Tiny giggles, sweet moments, and lots of soft play fun 🤍
If you’re dreaming up a magical first birthday, we’re here to bring the fun. Let’s make your next celebration unforgettable ✨
#Softplay #Bouncehuse #KidsParty #Partyrentals
Paola’s Berry 1st Birthday was sweet from start to finish! 🍓💖
Our custom soft play area brought the fun, the giggles, and all the berry cute vibes for her big day!🩷❤️
Planning your own sweet celebration? Let’s make it unforgettable — book with Party Baby! 🥳✨
#Softplay #Bouncehouse #KidsParty #Partyrentals
Wackadoo! 💥😜
Jacqueline’s 5th Birthday was a total Bluey dream come true 💙🐾
From bubbles to belly laughs, the Mini Bubble House brought the extra to this adorable celebration! 🫧🎉
Want to make your kiddo’s big day just as magical? Book with Party Baby! ✨🎈
#BlueyBirthday #MiniBubbleHouse #KidsParty #PartyRentals
Start your engines—Ayaan is 3! 🏁🔥
This F1 Racing–themed party zoomed into high gear with toddler bumper cars, The Duke bounce house, and custom vinyl decals that brought the track to life! 🏎️✨
From start to finish line, the energy was high and the smiles were nonstop 💥
Ready to throw your little racer the ultimate birthday bash? Book your next party with @partybabyseattle and let’s make magic happen 🎉
🖤 Event Planning & Design - @hudsongreyevents
🤍 Balloons - @hoopla_facepainting_balloons
❤️ Table & Chairs - @partyendsatnine
#Softplay #Bouncehouse #KidsParty #PartyRentals
