The installer brings fiber optic cable to your house and connects it to equipment inside
Fiber internet installation involves running a thin glass or plastic cable from your internet service provider's network to your home, then setting up a modem and router inside. The process usually takes two to four hours for a new customer, though it can be faster if the fiber line already runs past your house. You will need to be home during the appointment, and the installer will need access to your yard, exterior walls, and at least one interior room where they can place the modem.
The work is physical and visible — the installer will drill holes, run cables along your walls or through your attic, and may need to attach a small box to the outside of your house. If you rent, you should check your lease or ask your landlord before scheduling, since the installation leaves permanent marks.
Key Takeaways
- The installer runs fiber cable from the street to your home, which requires access to your yard and exterior walls.
- Inside your home, they will install a modem (the device that receives the signal) and usually a router (the device that broadcasts Wi-Fi), then test the connection before they leave.
- Installation typically takes two to four hours and you must be home the entire time.
- If you rent, confirm with your landlord that exterior drilling and cable runs are permitted before the appointment.
- The installer will show you how to restart the modem and router if your internet stops working, but they do not usually set up individual devices like phones or computers.
What the installer does outside your house
The fiber cable starts at a hub or junction box somewhere on your street or in your neighborhood — this is owned and maintained by your internet provider. The installer's job is to run a new cable from that point to your home. If the fiber line does not yet reach your street, your provider may need to do underground or overhead work first, which can take weeks and may require a separate appointment.
Once the cable reaches your property, the installer will typically run it along the ground, up the side of your house, or through a conduit (a protective plastic tube). They will drill a small hole through your exterior wall — usually near where you want the modem to sit inside — and feed the cable through. The hole is usually less than half an inch wide. They may also attach a small weatherproof box or bracket to the outside of your house where the cable enters; this protects the connection from rain and temperature changes.
If your house has a basement, attic, or crawl space, the installer may run the cable through those areas instead of along the outside wall. This is less visible but requires more interior access. Ask the installer which route they plan to take before they start.
What happens inside your home
Once the cable is inside, the installer will place the modem — a box about the size of a paperback book — in the room you choose. The modem is where the fiber signal converts into a form your devices can use. It needs to be plugged into power and connected to the fiber cable. The installer will usually place it near a window, on a shelf, or mounted on a wall, depending on your preference and the cable run.
Next, they will set up a router, which broadcasts the Wi-Fi signal throughout your home. Some providers give you a combined modem-router unit (one box that does both jobs), while others provide them separately. The router plugs into power and connects to the modem with an ethernet cable. The installer will turn both devices on, wait for them to fully boot up — this usually takes a few minutes — and then run a speed test to confirm the connection is working.
The installer will give you the Wi-Fi network name (SSID) and password, usually printed on a sticker on the router. They will not set up individual devices like your phone, laptop, or smart TV — that is your job. They will show you how to restart the modem and router if something stops working, and they will leave you with a phone number to call if problems happen after they leave.
What you need to prepare before the appointment
Clear a path from your front door or yard to the room where you want the modem installed. The installer needs to move equipment and cables through your home, so move furniture, pets, or obstacles out of the way. If you have a basement or attic, let the installer know during the scheduling call — they may prefer to run the cable that way instead of along your exterior walls.
Decide where you want the modem and router to live. A central location — like a hallway closet, a shelf in a living room, or a bedroom — usually gives the best Wi-Fi coverage. Avoid placing the router in a corner, in a metal cabinet, or next to a microwave, since these locations weaken the signal. If you are not sure, ask the installer for information when they arrive.
If you rent, contact your landlord or property manager before scheduling the installation. The drilling and cable runs are permanent changes to the building. Some landlords allow it without issue; others may require written notice or may not permit it at all. Knowing this in advance prevents a wasted appointment.
How long the installation takes and what to expect
A standard installation for a new fiber customer takes two to four hours. This includes running the exterior cable, drilling the entry hole, installing the modem and router, testing the connection, and explaining how to use the equipment. If the fiber line already runs past your house, the work may be faster — sometimes as little as one hour. If the installer encounters unexpected obstacles — like very hard soil, a thick exterior wall, or a long distance from the street to your house — it may take longer.
You must be home the entire time. The installer cannot complete the work if you leave, and rescheduling usually means waiting another week or more. Have water or coffee available if the appointment is long, and keep children and pets in a separate room if possible, since the installer needs to focus and move around freely.
Before the installer leaves, they will confirm that you can connect to the Wi-Fi and that the internet is working. They will not test every device in your home — that is your responsibility after they leave. If you notice problems within the first day or two, call your provider's support line; many providers offer a follow-up visit at no charge if something was installed incorrectly.
What to do if you already have fiber running past your house
If your neighborhood already has fiber infrastructure and your provider has already run a line to your property, the installation is much simpler. The installer will only need to connect the existing cable to your modem and router, test the connection, and show you how to use it. This can take as little as 30 minutes to an hour. You will still need to be home, but the disruption is minimal.
You can usually find out whether fiber already reaches your address by entering your street address on your provider's website during the sign-up process. If it does, the appointment will be scheduled faster and the technician will arrive with just the modem and router, not the equipment needed to run new cable.
Troubleshooting after installation
If your internet does not work after the installer leaves, the first step is to restart the modem and router. Unplug both devices, wait 30 seconds, and plug them back in. Wait another two to three minutes for them to fully restart, then try connecting again. This fixes most problems caused by a glitch during setup.
If restarting does not work, check that the fiber cable is fully inserted into the modem — it should click into place. Look for any visible damage to the cable where it enters your house. If the cable looks damaged or if you still cannot connect after restarting, call your provider's support line. They can run a remote diagnostic to see if the problem is on their end, and they can schedule a technician to come back if something was installed incorrectly.
Many providers offer a 30-day trial period or a money-back may provide if you are not satisfied with the service. If your internet is consistently slow or unreliable after installation, contact your provider within that window to discuss your options.
Frequently Asked Questions
Do I have to let the installer drill holes in my house?
Yes, the cable needs to enter your home somehow, and drilling is the standard method. If you own your home, you can ask the installer to drill in a less visible location — like the back of the house or through a basement wall. If you rent, you need your landlord's permission first. Some landlords may require the installer to use existing holes or conduit instead of drilling new ones.
What if I do not want the modem in the living room?
You can place the modem and router anywhere in your home as long as the fiber cable can reach it. The installer will run the cable to your preferred location. Keep in mind that the farther the router is from where you use Wi-Fi most, the weaker the signal may be. A central location usually works best, but the choice is yours.
Can the installer set up Wi-Fi on my phone and laptop?
No, the installer will give you the Wi-Fi network name and password, but you will need to connect each device yourself. This usually takes less than a minute per device — just open your Wi-Fi settings, select the network name, and enter the password. If you need help, the installer can walk you through it before they leave.
What happens if the installer damages my wall or yard?
Report the damage to your provider when ready and take photos. Most providers have a process for addressing installation damage, and they may send someone to repair it or offer compensation. Document everything in writing and keep copies of any communication with your provider.
How soon after installation can I use the internet?
You can use the internet as soon as the installer confirms the connection is working, which is usually before they leave. However, it may take a few hours for your service to fully set up on your provider's network. If you cannot connect within a few hours of the appointment ending, restart the modem and call support.