How to get fast internet in a Prague flat: providers, contracts, install

You move into a Prague flat on Saturday and your first work call is on Monday. The landlord says the internet is "already there". It is, in the sense that there is a socket on the wall. Whether a signal comes out of it depends on a contract, a technician and the age of the building.

Getting good internet in Prague is easy once you know the order of operations. Nothing is difficult, but nothing is instant either.

What kind of connection does the building have?

Fixed internet in Prague arrives in a few forms. Optical fibre runs light signals over glass and is the fastest and most stable. Cable uses a coaxial line, as TV cable does. DSL uses an old telephone line and is slower. Wireless from a local provider, or fixed 5G or LTE from a mobile operator, is offered where cable is limited.

The connection you can buy is set by what has been laid to your building and your flat. Two flats in the same street can have different options. The only reliable check is the address lookup on a provider's website. Enter your street, house number and, if asked, your flat number, and read the list of technologies and speed tiers it offers.

Who sells it

The national operators, such as O2, T-Mobile and Vodafone, sell fixed internet across large parts of the city. Alongside them are regional and local providers with their own networks in certain districts or buildings. Check each company's coverage tool, compare what they offer at your address and look at the contract terms, not only the speed.

Speeds are quoted in megabits per second (Mbps) for download and upload. The speed you need depends on how you use it: video calls and cloud backups reward good upload, while a household of streamers needs headroom. Rather than chase the largest number, choose a tier that matches your use and leaves a margin.

Contracts: what to read

Most offers are fixed-term. Czech rules limit the initial term of a consumer contract for electronic communications, and 24 months is the ceiling (as of 2026; check the Czech Telecommunication Office, ČTÚ). Providers offer 12 and 24 months and sometimes no commitment at a higher price. Read the cost for the whole period, not the monthly price alone, and look for these items: installation fee, router rental or purchase, the price after any promotional period, cancellation terms and any penalty for moving address.

If you will leave Prague within a year, a shorter contract or a mobile hotspot can be cheaper than a long contract with a fee for ending it. If you move within the city, ask whether the contract can be transferred to your new address.

Renting? Ask first

Tenants need the landlord's consent for work in the flat or building, such as drilling, new cabling or a box on the wall. Condominiums and owners' associations (SVJ) may control access to the riser cupboard. Ask the landlord which providers the building already uses, who holds the account and whether the previous tenant's service can be taken over.

Rental listings often say what is included, and utilities may be bundled with rent. If you are still choosing a flat, ask the agent which providers cover the building before you sign. You can browse rental listings on Novostavby.com (in Czech) to see how descriptions mention services. Our guide to utility bills in a Prague flat covers who normally pays for what.

Installation day

An installation can be as simple as a technician plugging a cable into a socket, or as involved as running new cabling through the building. Expect a booked window of several hours. Someone must be in the flat, and you may need the key to a shared cupboard. Ask the provider whether the technician needs the owner's permission.

Do not rely on the first available date. Ask for the earliest date and ask what happens if the technician cannot complete the job. If your work depends on connectivity, plan a bridge: a mobile data plan with a hotspot, a nearby café or a coworking space. See our guide to coworking spaces in Prague and getting a Czech SIM or eSIM.

Testing and complaints

The Czech Telecommunication Office publishes a speed-measuring tool, NetMetr, that you can use to test your connection independently. If the service is much slower than the contract says, collect several tests at different times and send them to the provider with a written complaint. If that fails, ČTÚ handles disputes between consumers and operators.

Set up your router sensibly. Put it in a central place, not in a cupboard. Use a cable for a work computer, and use Wi-Fi for everything else.

Frequently asked questions

How long does it take to get internet in a Prague flat?

It varies from a few days to several weeks, depending on the building and the technician's schedule. Book as soon as you can.

Can I choose any provider?

Only those whose network reaches your building. Check your exact address on each provider's site.

Is a 24-month contract the maximum?

For consumer electronic communications contracts, the initial fixed term is capped at 24 months (as of 2026; check ČTÚ).

What if I only need internet for a few months?

Ask for a no-commitment option or use a mobile data plan with a hotspot.

Start with one question to your landlord: which provider is already in the building? It narrows the search faster than any comparison site.

This is a general explainer, not legal or tax advice.