Helium Balloon & Bouquet Delivery in San Francisco, Silicon Valley & the South Bay
From a single giant number balloon to a fully custom bouquet, Balloon Bay delivers ready-to-float helium balloons across San Francisco, Silicon Valley, and the South Bay — or grab your order curbside from our Saratoga base.
Weekend dates across the Bay Area fill 2–4 weeks out.
See your price in about a minute — no call needed.
Or call or text +1 (650) 502-5077
Popular helium bouquet styles
Every bouquet is custom-built to your colors, theme, and occasion.
Our helium balloons and bouquets are built for the moments you don't need a full installation: birthdays, baby showers, graduations, congratulations, get-well surprises, and "just because." Every bouquet is designed around your colors and topped with a foil number, letter, or themed shape.
We deliver throughout San Francisco, Silicon Valley, and the South Bay — including San Jose, Saratoga, Cupertino, Sunnyvale, Santa Clara, and Palo Alto — with same-day delivery sometimes available. Browse your city below for local delivery details, or call +1 (650) 502-5077 to place an order.
What's included
- Pre-inflated helium balloons — latex and foil, ready to display
- Custom balloon bouquets built around your colors, theme, and occasion
- Giant number & letter foil balloons, filled and floating
- Coordinating ribbons and balloon weights included
- Hi-float treatment on latex for extended float time
- Local delivery across San Francisco, Silicon Valley, and the South Bay, or curbside pickup from our Saratoga base
What does helium balloons & bouquets cost?
Every Balloon Bay installation is custom-quoted to your event, so the figures below are guidance, not fixed prices. For helium bouquets, most setups start around $35–$75 for a simple bouquet and run $150+ for larger bouquets with giant number balloons and foil toppers. Your exact price depends on the size of the design, the balloon types used, and add-ons like backdrops, neon signs, or giant number balloons.
Request your free helium balloon quote
Tell us your event date, venue, and colors — we'll respond within hours with a quote.
What clients say
“It was absolutely wonderful working with them! The decor looked amazing! They put a lot of effort and care into it! We had our event in a park and they went to the park in person a few days before the event.”
“We hired Balloon Bay for our baby shower. They were easy to communicate with and very thorough with details. Set up and take down were efficient. Great job!”
Recent balloon bouquets & displays
Every photo is from a real Balloon Bay order — custom bouquets, giant number balloons, and floating foils delivered across San Francisco, Silicon Valley, and the South Bay.
Helium balloon delivery by city
Local helium balloon and bouquet delivery across San Francisco, Silicon Valley, and the South Bay — browse your city hub for décor details, ZIP codes, and FAQs (helium orders ship from the same service area).
Helium balloon FAQs
How long do helium balloons last?
Foil (mylar) balloons float for several days up to two weeks. Latex balloons float about 12–24 hours, or longer with our optional Hi-Float treatment. We time delivery so your balloons peak for your event.
Do you deliver helium balloons across San Francisco, Silicon Valley & the South Bay?
Yes — we deliver helium balloons and custom bouquets throughout San Francisco, Silicon Valley, the South Bay, and the Peninsula, including San Jose, Saratoga, Cupertino, Sunnyvale, Santa Clara, Palo Alto, and more. Curbside pickup from Saratoga is also available.
Can I order a custom balloon bouquet?
Of course — every bouquet is custom-built to your colors, theme, and occasion, with giant number, letter, or themed foil toppers available. Tell us your event details and we'll design it to match.
How much do helium balloons and bouquets cost?
Simple helium bouquets start around $35–$75; larger bouquets with giant numbers and foil toppers cost more. Delivery fees vary by location. Call +1 (650) 502-5077 for a quick quote.
Guides related to helium balloons
Practical tips from the Balloon Bay team — then book a custom install when you're ready.
Best Balloon Decoration Ideas for a 1st Birthday
1st birthday balloon ideas — giant number 1, smash-cake backdrops, ONE-derful palettes, and safety-first installs in SF, Silicon Valley & the South Bay.
Read more →
Best Balloon Decorations for Kids' Birthday Parties
Best kids' birthday balloon decorations — arches, garlands, backdrops, ceiling balloons & themed ideas, installed in SF, Silicon Valley & the South Bay.
Read more →
How to Decorate With Balloons Without Helium
Helium-free balloon décor that lasts weeks, not hours. Do balloon arches need helium? No — here's how air-filled arches, garlands and walls stay up.
Read more →