Internet is easy to forget when you view a room in Thailand, and hard to fix once you have signed. If you study online, work from home or call family abroad, the real speed in your room, the monthly cost and whether you may install your own line will shape your whole stay. This guide covers your options, how to test the connection during a viewing, what to ask the landlord and put in writing, what to know before signing up for your own home internet, and how to stay safe on shared building Wi-Fi, with notes for foreign tenants.
Your three options
Not every building allows all three, so ask the landlord which ones work there.
| Option | Good for | Pros | Check first |
|---|---|---|---|
| The building's internet (Wi-Fi in the room, common-area Wi-Fi or a LAN port in the room) | Shorter stays, or anyone who does not want a contract with a provider | Nothing to install, no extra contract; sometimes included in the rent | The speed in the room you will rent, how many rooms share it, who fixes it when it goes down |
| Your own home internet line in your name | Working or studying online all day, longer stays | Not shared; you choose the provider and package | Whether the landlord allows it, whether the internet contract runs longer than your lease, what happens when you move out |
| Mobile data: phone hotspot or a SIM router | Light use, or people who move often | No cabling; it moves with you | Mobile signal inside the room and whether the data allowance is enough |
You can also use the building's Wi-Fi day to day and keep mobile data as a backup for the days it fails. Sharing with a roommate? Agree whose name the internet is in, who pays and how you split it: Sharing a Rental With a Roommate in Thailand.
Test the connection in the room before you sign
"Wi-Fi available" only tells you there is internet, not how well it works in the room you will rent. Take five minutes during the viewing:
- Connect inside the room itself. Ask the manager for the network name and password and connect your phone in that room, not in the lobby or at the office.
- Run a speed test two or three times where you will work and next to the bed, and take screenshots to compare rooms.
- Try what you actually use, such as a video or a short video call if you study or work online.
- Check the mobile signal in the room in case you need a backup.
- Look for a LAN port, a socket near the desk and a spot for a router if you may install your own line.
Viewing in daytime? Ask how the connection holds up in the evening, when most residents are online.
What to ask the landlord, and what to put in writing
If you will use the building's internet
- Is it included in the rent? If not, how much per month, and is it billed with the rent?
- Is it Wi-Fi in the room, common-area Wi-Fi or a LAN port?
- How do you log in, how many devices can connect at once, and may you plug in your own router or extender?
- Who do you contact when it goes down, how, and how long does a fix usually take?
- If it is down for days, how is that month's internet fee handled?
If you want your own line
- Does the landlord allow it, and which providers already have cables into the building?
- Will the technician need to drill, fix cables to the wall or run them through other areas? Who lets the technician in?
- In a condo, does the juristic person (the building management) need notice before the installation?
- When you move out, must the cable and equipment be removed, and who repairs any holes?
Get the landlord's permission in writing before any drilling or fixing to the walls. Under Section 558 of Thailand's Civil and Commercial Code, a tenant may not alter or add to the rented property without the landlord's permission. If you do, the landlord can require you to restore it to its original condition, and you are liable for any damage caused.
Put it in the lease
Ask for the internet fee and the answers above to be written into the lease, or at least confirmed in a chat message you can keep and translate later. If your landlord rents out 3 or more residential units (dormitories under Thailand's Dormitory Act and hotels are excluded), the Contract Committee's Notification on residential leases as a controlled-contract business, B.E. 2568 (2025), requires that:
- the lease states the rates for electricity, water, telephone, internet and any other utilities charged, and how they are paid;
- the landlord sends bills for rent, utilities and service charges at least 3 days before the payment date.
Not sure whether your building is covered? Ask the Office of the Consumer Protection Board (OCPB) on hotline 1166. More on these rules: Thailand's 2025 Lease Rules for Landlords.
Your own line: match the internet contract to your lease
The main risk is an internet contract that runs longer than your lease, for example a 6-month lease and a 12-month internet contract. Before you sign with a provider, ask about the minimum term, what you pay if you cancel early, which equipment must be returned and whether the service can move with you to a new address. Also ask which documents they need from a foreign customer before you book the installation.
On 05/06/2026 the Office of the NBTC, Thailand's telecom regulator, said that home internet can be cancelled before the contract ends and that there is no penalty fee, but the cancellation must follow the terms of the contract you signed:
- If you paid the connection and installation fees yourself, you can cancel once you have paid any outstanding charges and returned the equipment.
- If installation was free under a promotion, you may have to pay the installation fee in proportion to the time you used the service, as the contract states. The NBTC's own example: a 12-month contract that lists a 1,200 baht installation fee, cancelled after 6 months, means paying 600 baht.
- Give notice in writing. Under the National Telecommunications Commission's Notification on Standards of Telecommunication Service Contracts, B.E. 2549 (2006), you may end the contract by written notice to the provider at least 5 working days in advance, paying for the service up to the end date. Plan it before your move-out day.
Keep the cancellation reference number, the equipment return receipt and photos of the equipment until everything is settled. If you cannot resolve a dispute with the provider, the NBTC's free hotline is 1200. For the rest of your move-out, see Moving Out of a Thai Rental: A Room-by-Room Cleaning Checklist.
Stay safe on shared building Wi-Fi
Building Wi-Fi is shared by many rooms, so treat it like public Wi-Fi. Advice from Thailand's Office of the National Digital Economy and Society Commission that fits building networks:
- Ask the manager for the exact network name: scammers can set up fake Wi-Fi with a similar name.
- Turn off automatic Wi-Fi connection and file sharing on your devices.
- Check that the address starts with https:// before typing a password.
- If a login page asks you to download an app or give more details than it needs, check with the manager first.
- Use your own mobile data, not the shared network, for sensitive tasks such as banking apps.
Do not share your building Wi-Fi login with people outside your room. If you install your own router, replace the password it came with by one that is hard to guess.
New to the address? The house owner or landlord must report your stay to Thai Immigration on form TM30 within 24 hours of you moving in. What to hand over and what to keep: TM30 in Thailand for Tenants.
Find a room with clear internet costs on RentKrub
On every RentKrub listing, check two places before you message the owner:
- The "Costs" box has an "Internet" row showing the monthly fee or "Included in rent". If it says "Ask the owner", get the figure before you book a viewing.
- The "Amenities" section lists "In-room WiFi" and "Free common-area WiFi"; faded items are not available.
Start your search here:
- Search on map: drop a pin at your office or campus and pick a radius of 1–5 km.
- Rooms near rail stations (BTS, MRT and ARL) and rooms near universities.
- Daily rooms: stay a few nights first to try the area and the connection before you sign a monthly lease.
- Compare properties: tap the scale button on up to 4 listings and see them side by side.
This article is a general summary. For your own case, rely on your lease, your contract with the internet provider and the official notification; the notification and the standard lease form (in Thai) are on the OCPB website.
