Most business internet is not symmetric. You get fast downloads and slow uploads. For a lot of offices, that is fine. For some, it is the reason work stalls every afternoon.
Dedicated Internet Access fixes that. It also costs more. A lot more.
Here is what DIA actually is, who needs it, and what the price should look like in 2026.
What DIA means in plain words
DIA gives you the same speed up as you do down. 500 Mbps down, 500 Mbps up. 1 Gig down, 1 Gig up. The bandwidth is yours. You are not sharing it with the office next door or the apartments across the street.
It also comes with a service level agreement. The carrier promises uptime, usually 99.99 percent. They promise a fix window if the circuit goes down. If they miss, you get a credit on the bill.
Cable internet does not work that way. Comcast Business and Spectrum sell shared bandwidth with a soft promise. When it breaks on a Saturday, you wait in line behind everyone else.
That is the real difference. Speed is part of it. The SLA is the rest.
Who actually needs it
Most small offices do not. A ten person team browsing the web and running Slack is fine on cable. Pay $150 a month, move on.
DIA starts to pencil out when one of these is true:
You run video calls all day. Sales teams, customer support, anyone living in Zoom. Cable upload speeds choke when six people are on camera at once.
You send large files. Video production, architecture, engineering, medical imaging. A 10 GB upload on cable can take an hour. On a symmetric Gig, it takes 80 seconds.
You host something on site. A phone system, a server, a VPN endpoint. Inbound traffic needs the upload bandwidth you do not have on cable.
You cannot tolerate downtime. A call center loses $400 an hour when the internet drops. A dental office loses one appointment. Different math, different answer.
You have a compliance reason. Some contracts require a written SLA. Cable cannot give you one.
If none of those apply, save your money.
What it should cost
Prices vary by city and building. Here is the rough shape in 2026.
100 Mbps DIA in a fiber city: $400 to $700 a month.
500 Mbps DIA in a fiber city: $600 to $1,100 a month.
1 Gig DIA: $800 to $1,800 a month in most markets. We have seen it as low as $650 in dense downtown buildings and as high as $2,400 in suburban office parks.
10 Gig DIA: median around $1,565 a month based on 19 recent samples. Real spread runs $895 in New York to $4,125 in Augusta.
If a carrier quotes you double these numbers, it usually means one of two things. The building does not have fiber lit and they need to build, which can add $20,000 to $80,000 in construction. Or they think you do not know what fair looks like.
How to actually buy it
Get three quotes. Always three.
In most cities the candidates are Lumen, Crown Castle, Zayo, Cogent, and the local cable carrier's fiber arm. Comcast and Spectrum both sell DIA, and their pricing is often the most aggressive when they already have fiber in your building.
Ask for the install date in writing. DIA installs run 60 to 120 days. Some take longer. If you sign a cable contract while you wait, make sure it is month to month, not a three year deal.
Read the SLA. The number that matters is the credit cap. Some carriers cap credits at one month of service. Some cap at the value of the outage hours. Big difference when you lose a Tuesday.
Watch the contract length. Three years is standard. Five years gets you a lower rate but locks you in past the next price drop. Fiber prices have fallen every year for a decade. We expect that to continue.
The short answer
DIA is the right product for maybe 20 percent of the businesses that get quoted on it. For the other 80 percent, cable plus a backup connection costs less and works fine.
If you are not sure which group you are in, upload your bill. We will tell you.
Related reading
→ Comcast Business pricing and what to negotiate → Business internet quotes in Chicago → How to read your telecom bill line by line → See a sample SpendAdvisor report