What happens when a fiber optic technician comes to your house
A fiber optic installation involves running a thin glass cable from the street into your home and connecting it to a device that converts the signal into internet you can use. The technician will locate where the fiber line runs near your property, drill or run a conduit into your house (usually through an exterior wall), and terminate the cable at an optical network terminal (ONT) — a small box about the size of a paperback book. From there, an ethernet cable connects to your router, and you have internet.
The entire process typically takes two to four hours for a standard residential installation. Most of the time goes to running the cable through walls or conduit, not to the actual connection. If the fiber line is already very close to your home and you have a clear path indoors, it can be faster. If the technician has to bore under a driveway or navigate multiple walls, it takes longer.
Key Takeaways
- The fiber line runs from the street to an optical network terminal (ONT) mounted outside or inside your home, which converts the signal for your router to use.
- Technicians will drill a hole through an exterior wall or use existing conduit to run the cable, and you can usually request where the ONT is placed.
- Installation is free with most fiber providers when you sign up for service, though some charge a fee if you cancel within a set period.
- The technician will test the connection before leaving and show you how to restart the ONT if your internet drops.
- If the fiber line does not reach your property yet, your provider can tell you when it will be available in your area.
How the fiber line gets from the street to your house
Before the technician arrives, your provider has already confirmed that fiber runs in your neighborhood — usually in underground conduit or on poles. The technician's first job is to locate where that line is closest to your property and trace the best path indoors.
For underground fiber, the technician will dig or probe to find the cable and locate the nearest junction point. For overhead fiber on poles, they will assess whether they can run a cable down the pole and across to your house, or whether they need to bury it. Most providers prefer to bury the cable if it crosses your yard, because overhead lines are more exposed to weather and damage.
Once the route is decided, the technician will either drill a small hole (usually three-quarters of an inch) through an exterior wall, or use existing conduit if your house has it. They will ask where you want the hole — typically near where you want the ONT mounted, which is often in a garage, basement, or utility closet. If you have a preference, tell the technician before they start drilling.
Installing the optical network terminal and connecting your router
The ONT is the box that sits between the fiber line and your home network. It receives the fiber signal and converts it to ethernet, which your router understands. The technician will mount the ONT on a wall near where the fiber enters your house, or sometimes inside a closet or cabinet if you prefer it out of sight.
The ONT has power, so the technician will plug it into a nearby outlet. They will then run an ethernet cable from the ONT to your router. If your router is far away, they may run the cable through walls or along baseboards. Some people ask the technician to hide the cable in conduit or behind trim; this is usually possible but may add time to the installation.
Once everything is connected, the technician will power on the ONT and wait for it to sync with the network. This usually takes a few minutes. You will see lights on the ONT — typically a power light and a connection light. The technician will explain what each light means and what to do if one goes out.
Testing the connection and what to expect after installation
Before the technician leaves, they will run a speed test to confirm you are getting the speeds your plan includes. They will also check that all the lights on the ONT are green and that your router is broadcasting a signal. If anything is wrong, they will troubleshoot on the spot — this might mean restarting the ONT, checking cable connections, or contacting their network operations center.
The technician will show you the power button on the ONT and explain that restarting it (turning it off for 30 seconds, then back on) fixes most temporary connection drops. They will also give you a phone number to call if the connection goes down after they leave. Write this number down or take a photo of it.
After installation, your internet should be stable within a day or two as the network learns your connection. Some providers send a follow-up text or email asking how the installation went. If you have problems in the first week, contact your provider — they often have a grace period where they will send a technician back for free if something is not working.
What to prepare before the technician arrives
Clear the area where the technician will be working, both outside and inside. If the fiber line is in your front yard, move cars, toys, and garden hoses out of the way. Inside, make sure the technician can access the wall where they will drill and the area where you want the ONT mounted.
Decide in advance where you want the ONT. Common locations are a garage wall near an outlet, a utility closet, or a basement corner. Avoid placing it in a kitchen or bathroom where moisture could damage it. If you want the ONT in a specific spot, tell the technician as soon as they arrive.
Have your account number or service address ready. The technician will verify this before starting work. If you have pets, let the technician know — they may need to move through your house, and it helps if your dog is not surprised by a stranger.
Costs and what is included in installation
Most fiber providers include installation for free when you sign up for service. This covers the technician's time, the ONT, the cable, and the labor to run it into your house. You do not pay extra for the installation visit.
Some providers charge an installation fee if you cancel service within a certain period — often 12 months. This is usually stated in your service agreement. If you think you might cancel soon, ask about this fee before signing up.
If you want extra work — such as running cable through multiple rooms, hiding cable in conduit, or placing the ONT in a location far from where the fiber enters — some providers charge for this as an add-on. Ask the technician about costs before they start if you want anything beyond the standard installation.
What to do if fiber is not available at your address yet
If you check your address and fiber is not available, your provider can usually tell you when it will be. Fiber networks expand neighborhood by neighborhood, and the timeline depends on the provider's construction schedule and local permits.
You can ask to be notified when fiber reaches your area. Most providers have a waitlist or notification system. In the meantime, you may have other options — cable internet, DSL, or fixed wireless — depending on where you live. Your provider's website will show what is available at your address today.
Frequently Asked Questions
Will the technician drill through my walls?
Only through exterior walls to bring the fiber inside. The technician will make one small hole (usually less than an inch) where the cable enters. They will not drill through interior walls unless you ask them to run cable to a different room, which may cost extra. You can request where this hole goes before they start.
What if I do not want the ONT on the outside of my house?
You can ask the technician to mount it inside — in a garage, basement, utility closet, or even a bedroom. The ONT needs power and an ethernet cable to your router, so pick a location near an outlet. Inside placement is standard and usually costs nothing extra.
Can I move the ONT after installation?
You can move it if you have a long enough ethernet cable, but the fiber cable itself cannot be moved — it is fixed where the technician ran it. If you want the ONT in a different room, you would need a long ethernet cable or a second router. Contact your provider if you want to relocate the ONT permanently; they may send a technician to help.
What happens if my internet goes out after installation?
Restart the ONT by unplugging it for 30 seconds and plugging it back in. Wait a few minutes for it to sync. If the lights do not return to normal, or if it keeps dropping, call your provider's support number. Most providers offer a grace period after installation where they will send a technician back for free if something is not working.
Do I need to do anything to activate the internet after installation?
No. The technician activates the service before they leave. Your router should start working as soon as the ONT is connected and synced. You may need to connect your devices to the Wi-Fi network — the technician will give you the network name and password, or you can find them on a sticker on your router.