A professional balloon arch costs $10 to $30 per linear foot or $150 to $1,200 total on average. The actual cost depends on the size and style of the arch and whether the company charges extra for delivery, installation, or takedown. 

Organic styles feature dynamic or natural-looking designs rather than plain arches. Organic and custom designs cost more than average.

How long you arch lasts depends on the weather and what type of air you fill them with. A helium balloon arch will only last 12 to 24 hours (or less if there's inclement weather). Plain air-filled balloon arches can last several days or weeks. If you plan on making the arch in advance, you have to take into account the type of air you use to fill the balloons.

Most standard balloon arches use around 10 balloons per linear foot. This means that the average balloon arch uses 150 to 400 balloons, depending on the size and design you choose. If you choose a pearl-string arch or decide to make a smaller balloon garland instead, you’ll need fewer balloons.

Making a balloon arch takes professionals about 1 to 3 hours, depending on its size and how many people are working on it. If you’re making the arch yourself, it will most likely take longer than a professional installation.

To find the best balloon arch company for you, follow these steps:

• Compare prices from several balloon arch companies nearby.
• Make sure they have a business license and insurance.
• Read their customers' reviews on Fash and Google.
• Avoid lowball prices, which usually indicate low-quality results.
• Ask whether their price includes delivery, setup, and takedown.
• Ask if they charge any extra fees not listed.

Ask the following questions before your event:

• How long do you estimate the arch will last?
• How far in advance could you set it up?
• Will you be using helium or regular air?
• How will bad weather affect the balloons?
• What color and style options do you have available?
• How long does it normally take you to set up the arch?
• Are all delivery, setup, and takedown fees included in this quote?
• Are there any other fees?
• Do you offer any discounts or promotions?
• Can I custom-design my balloon arch?