Mercer Island, Washington

Meet your ultra-fast fiber internet service provider

Your Life is Unlimited. Your Internet, in Mercer Island, should be, too. Go Beyond with Quantum Fiber today.
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Quantum Fiber internet services

Find fast, reliable in-home WiFi internet when you choose Quantum Fiber in Mercer Island, Washington
Service Offered
Internet Speeds up to 940Mbps
$75/mo
Speeds up to 940Mbps
Limited availability. Service and rate in select locations only. Taxes and fees apply. 360 WiFi and other equipment lease charges, taxes, and fees are excluded from Price for Life offer and may be increased.
Price for Life
Keep your internet service monthly rate for as long as you keep your plan! Internet service monthly rate subjected to continued plan availability.
20X faster upload speed than cable
Comparison, as of 10/7/22, based on Quantum Fiber technology with wired upload speeds of up to 940 Mbps to major cable providers 1GIG cable service over DOCSIS 3.1 technology with upload speeds of 35 Mbps.
Unlimited data on a 99.9% reliable* network
*Based on network uptime or availability.
FREE installation - $129 value
Seamless 360 WiFi coverage at no monthly charge for initial period
No annual contract
Service Offered
Internet Speeds up to 500Mbps
$50/mo
Speeds up to 500Mbps
Limited availability. Service and rate in select locations only. Taxes and fees apply. 360 WiFi and other equipment lease charges, taxes, and fees are excluded from Price for Life offer and may be increased.
Price for Life
Keep your internet service monthly rate for as long as you keep your plan! Internet service monthly rate subjected to continued plan availability.
Built for fast downloads and multiple video chats
Unlimited data on a 99.9% reliable* network
*Based on network uptime or availability.
HD streaming in 4K on 6+ devices
Seamless 360 WiFi coverage at no monthly charge for initial period
No annual contract

Shop Quantum Fiber services

Learn about adding Connected Voice phone, seamless 360 WiFi, or Business Fiber below. Additional charges may apply.
Guy playing virtual reality games using Quantum Fiber Internet

Uploads as fast as downloads

Upgrade to tomorrow’s speed today with Quantum Fiber internet in Mercer Island. With super-fast speed and unlimited data, your uploads move as fast as your downloads. Share HQ video as fast as you download it. Do less waiting and more living with both download and upload speeds up to 940 Mbps on a fiber optic connection.
Speed may not be available in your area. Prepay required. Taxes and fees may apply.
Quantum Fiber Internet Mobile App

Take control of your internet with the Quantum Fiber app

Our powerful app puts control, simplicity, and freedom right in the palm of your hand. Get it now!
Camping in the backyard in a tent using tablet connected to home WiFi

Fiber internet + seamless 360 WiFi

Introducing the WiFi mesh network for your home or business that optimizes itself based on how you use it! With 360 WiFi, you’ll get improved WiFi security, the ability to manage who’s connected, and even parental controls.
Girls talking on home phone

Home Phone Service with Connected Voice

Ready for the digital tool that can transform how you communicate? You’ve made the right call. Connected Voice is designed with your connected life in mind. No matter how you message, meet, or call, get everything you need on one amazing platform.
Family Streaming TV

Experience streaming TV in Mercer Island with Quantum Fiber

We make it simple for you and your family to stay entertained in Mercer Island with some of the best solutions in TV.

Frequently Asked Questions

About Quantum Fiber

Quantum Fiber is a premium internet service that delivers super-fast speed and rock-solid reliability to keep households connected and small businesses thriving. As part of the global fiber-optic backbone, customers enjoy fully online service and support, 24/7. Signup, upgrades, care, and repair are simple, straightforward, and only a few clicks or app-taps away. Quantum Fiber is the internet reimagined for work, play, entertainment—and anyone ready to live their best digital life.

Quantum Fiber services available in Mercer Island, WA:
Up to 940 Mbps Offer Details

Speed may not be available in your area. Taxes and fees may apply.

Although our fiber service usually means 100% fiber-optic network to your location, in limited circumstances Quantum Fiber may need to deploy alternative technologies coupled with a non-fiber connection from a certain point (usually the curb) to your location in order to provide the advertised download speeds.

Customer speed experiences will vary, particularly when accessing the Internet wirelessly from various devices. Maximum download/upload speeds are up to 940 megabits per second via a wired connection due to overhead capacity reserved to deliver the data. Internet speeds are not guaranteed due to conditions outside of network control, including customer location, devices, equipment, and access through a wired or wireless connection; see Quantum Fiber Legal for more information.

Service is not available everywhere. Offer available to qualifying customers. Limited time offer. Monthly service rates, leased equipment rates, and taxes and fees are subject to change and, if any changes are made to existing accounts in any manner, all prior discounts will be void. Month-to-month (referred to as “no contract”) service means no term commitment and may be cancelled at any time without an early termination fee but customer must accept Internet Subscriber Agreement prior to using service (see Quantum Fiber Legal ). Modem/Wireless Service: To access in-home WiFi service, there are two options – the second option depends on customer location. Option #1: In all locations, customers may provide their own compatible wireless modem. Option #2: In certain locations, customers will be provided a Free Modem that includes in-home WiFi service. In other locations, a modem is included, without access to in-home WiFi service, but customers can lease pods from Quantum Fiber for $15/mo. fee + tax (up to four max.) for access to in-home WiFi service. For new customers, number of pods provided will be determined by technician during professional installation. For existing customers, the number of pods for self-installation will be based on the square footage of customer location. Security features will not work if customer does not plug pods in or plugs devices directly into modem. Internet Subscriber Agreement Equipment policy applies. Installation: Offer includes professional installation at customer’s eligible location. For certain, new Internet installations, construction charges may apply (“Construction Charges”). Quantum Fiber will absorb the first $1,500 of the Construction Charges; customer will be responsible for Construction Charges to the extent they exceed $1,500, usually no more than an additional $2,000. Customer will be contacted prior to install for approval to proceed with order if Construction Charges apply. Quantum Fiber may change, cancel, or substitute offers and services, or vary them by service area, at its sole discretion without notice. All products and services listed are governed by tariffs, terms of service, or terms and conditions posted at Quantum Fiber Legal . See Quantum Fiber Legal for taxes and fees. Additional restrictions may apply. Prepayment: Service will begin on the date your order is completed and full payment is processed through your choice of debit card, credit card, or other prepay service available with your subscription. Each month following, a recurring e-commerce transaction for your service will be processed as service automatically renews monthly until cancelled by customer.

Up to 200 Mbps Offer Details

Speed may not be available in your area. Taxes and fees may apply.

Although our fiber service usually means 100% fiber-optic network to your location, in limited circumstances Quantum Fiber may need to deploy alternative technologies coupled with a non-fiber connection from a certain point (usually the curb) to your location in order to provide the advertised download speeds.

Customer speed experiences will vary, particularly when accessing the Internet wirelessly from various devices. Download speed via a wired connection. Internet speeds are not guaranteed due to conditions outside of network control, including customer location, devices, equipment, and access through a wired or wireless connection; see Quantum Fiber Legal for more information.

Service is not available everywhere. Offer available to qualifying customers. Limited time offer. Monthly service rates, leased equipment rates, and taxes and fees are subject to change and, if any changes are made to existing accounts in any manner, all prior discounts will be void. Month-to-month (referred to as “no contract”) service means no term commitment and may be cancelled at any time without an early termination fee but customer must accept Internet Subscriber Agreement prior to using service (see Quantum Fiber Legal ). Wireless Service: To access in-home WiFi service, there are two options – the second option depends on customer location. Option #1: In all locations, customers may provide their own compatible modem and wireless router. Option #2: In certain locations, customers can lease a modem from Quantum Fiber that includes a router for access to in-home WiFi service for $15/mo. fee + tax. In other locations, a modem is included, without access to in-home WiFi service, but the customer can lease pods from Quantum Fiber for $15/mo. fee + tax (up to four max.) for access to in-home WiFi service. For new customers, number of pods provided will be determined by technician during professional installation. For existing customers, the number of pods for self-installation will be based on the square footage of customer location. Security features will not work if customer does not plug pods in or plugs devices directly into modem. Internet Subscriber Agreement Equipment policy applies. Installation: : Offer includes professional installation at customer’s eligible location. For certain, new Internet installations, construction charges may apply (“Construction Charges”). Quantum Fiber will absorb the first $1,500 of the Construction Charges; customer will be responsible for Construction Charges to the extent they exceed $1,500, usually no more than an additional $2,000. Customer will be contacted prior to install for approval to proceed with order if Construction Charges apply. Quantum Fiber may change, cancel, or substitute offers and services, or vary them by service area, at its sole discretion without notice. All products and services listed are governed by tariffs, terms of service, or terms and conditions posted at Quantum Fiber Legal . See Quantum Fiber Legal for taxes and fees. Additional restrictions may apply. Prepayment: Service will begin on the date your order is completed and full payment is processed through your choice of debit card, credit card, or other prepay service available with your subscription. Each month following, a recurring e-commerce transaction for your service will be processed as service automatically renews monthly until cancelled by customer.