Moving House? What to Do About Your Internet, Router and Modem — In the Right Order

Somewhere in the fortnight before a move, between the boxes and the change-of-address forms, you hit the internet question: do you take it with you, cancel it and start again, or use the move as the moment to finally switch to somebody cheaper? So you search it, and the results are strange — pages of comparison sites and "moving checklists" that all funnel toward the same button, which is a form to order new service.

That is not an accident. Almost every page that ranks for this question is paid a commission when you sign up for internet at the new address, which means none of them will lead with the answer that costs them money: for most people the cheapest correct move is to keep the account you already have, take the equipment you own, send back the equipment you rent, and change nothing else. Switching providers during a move is occasionally the right call, but it should be a decision you make on the merits, not the default the search results push you into.

What follows is the sequence, in order, with the traps at each step: the one thing to check before you cancel anything, why the equipment rules are genuinely different at every provider, the five minutes on install day that decide whether your Wi-Fi is good or bad for the next three years, and the trick that stops you spending an evening reconnecting a printer, three TVs and a shelf of smart plugs.

Step one: find out what is actually at the new address — before you touch anything else

Everything else depends on this answer, and it is the step people skip because they assume it is obvious. It is not. Internet availability is a per-address fact, not a per-city one. Cable and fiber are built street by street and sometimes building by building, so "Spectrum serves Riverside" or "there is fiber in Corona" tells you almost nothing about the specific house you are moving into. The house next door can have a service that yours does not.

Every provider has an address checker on its own site, and that — not a comparison site — is the thing to use, because the comparison sites are working from coverage maps while the provider is working from what is physically connected to your street. Type in the full address including the unit or apartment number; in a multi-unit building the answer can genuinely differ by unit, depending on what was wired when.

The answer splits your move into one of two paths. If your current provider serves the new address, you are doing a transfer: same account, same bill, usually the same equipment, and generally no charge for the move itself. If it does not, you are doing two separate things — closing one account and opening another — and that is the version with the deadlines and the fees. Spectrum states the split plainly in its own moving guide: if it serves your new area you transfer, and if not, "you'll need to close your account, return any leased equipment and set up service with a provider at your new address."

Step two: do not cancel the old service until the new one is booked

This is the single most common own goal in the whole process. People phone up, cancel the old service to a date, then discover the new address needs a technician visit and the first available appointment is eleven days after they move in. There is no undo for that, and no amount of apologising to the provider produces an engineer any sooner.

Book in the order that leaves you covered: confirm what is available at the new address, book the install or the transfer date first, and only then set the disconnect date for the old one. A few days of overlap where you are briefly paying two bills is cheap insurance, and if you are the one moving out of a rental it is often useful anyway — you may still be cleaning the old place for a week after the van has gone.

Give yourself more runway than feels necessary, because the providers themselves say so. Spectrum recommends "beginning the process at least two to four weeks before your move-in date." Frontier will schedule a move "up to 45 days in advance." Xfinity lets you set a move up around a month ahead, and will tell you when you book whether you qualify to install it yourself or whether a technician has to come. Summer is peak moving season across Southern California — leases turn over, students move, and the appointment slots fill — so late spring through August is exactly when the two-week version of this plan quietly becomes a three-week wait.

Step three: which box do you take, and which one do you send back?

This is where people lose real money, and it is worth being precise, because the rules are not the same at every provider and the reasonable-sounding assumption is wrong about half the time.

If you are staying with a cable provider and transferring service, the equipment usually travels with you. Xfinity's own move preparation page is explicit about it — before you can install and re-activate at the new address, you need to "gather and bring all Xfinity equipment, accessories, cables and power cords," and its list includes the modem, the router, the wireless gateway and the TV box, along with the coax, HDMI and Ethernet cables. That is the easy case: you unplug it, you box it, you plug it in at the other end.

The telephone and fiber companies work differently, and this is where the fees live. Their gateway is leased to the service, not to you, and when an account closes it has to come back on a clock. AT&T's support pages give you 21 days from the service change or disconnect date to return undamaged equipment before a non-return fee lands on the bill — and note that AT&T retail stores do not take equipment returns; it goes to a UPS Store or FedEx Office, where a rep scans it and gives you a tracking receipt. Frontier runs a similar process with a QR code emailed or texted to you, a 30-day window from the return request, and unreturned-device charges its own help pages put at up to $500 depending on the model.

Two habits make this painless. Keep the tracking receipt from the return — that piece of paper is the entire defence if an unreturned-equipment charge appears two bills later, and it does happen. And when you book the move, ask the provider directly which items are yours and which are theirs, then write it on the box you pack them in. Frontier is straightforward that this is a per-order question rather than a universal rule: "we'll let you know what to do with your equipment when you place the order."

The modem you bought yourself: worth taking, with two caveats

If you bought your own modem and router rather than renting the provider's gateway, taking them is normally the right move and saves you the rental fee at the new address too. But it only works if the hardware fits what is at the other end, and there are two ways it can fail.

The first is the technology itself. A cable modem speaks DOCSIS over coaxial cable and is worth exactly nothing on a fiber line — a fiber service terminates in an ONT that the provider supplies and owns. If you are moving from cable to fiber, your modem is not coming with you in any useful sense, though the router behind it very much is. That distinction matters because the router is the box doing the Wi-Fi, and it is the half worth keeping.

The second is certification. Providers approve specific modem models for specific speed tiers, and an uncertified device is not a slow device — it is a device that will not be activated at all. Xfinity publishes a "My Device Info" lookup for exactly this, where you enter the address or sign in and see which retail modems are certified for the speeds available there, and its guidance is blunt that using a device on a speed tier it is not approved for "tends to produce unexpected results." Check the model number against the new provider's list before moving day, not on it. If you are weighing the rent-versus-own question generally, we have a full guide to that decision.

Install day: the one decision you should not let the technician make alone

On the day, the technician's job is to get a working connection into the house and prove it works. Their job is not to think about where your Wi-Fi needs to reach in eighteen months, and if you are not standing there when the decision is made, the gateway ends up wherever the cable already comes in — the garage, a back closet, the corner bedroom that happens to have the old outlet. We are then called out six months later to fix "bad Wi-Fi" that is really a placement problem baked in on install day.

So be present, and have one sentence ready: where does the equipment go, and can it go somewhere central and ventilated instead. The ideal spot is roughly in the middle of the living space, off the floor, out of a sealed cupboard, and not behind a large metal appliance or a mirror. If the line genuinely has to enter at the garage — and sometimes it does — the fix is to leave the gateway there, turn its Wi-Fi off, and run one Ethernet cable to a router placed properly, which is a conversation the technician can have with you on the spot for free and which costs real money to arrange afterwards.

Two rental-specific points. In an apartment or condo, the demarcation point — the ONT, the panel in the closet, the wiring in the walls — usually belongs to the property, not to you or to your provider, so anything involving new holes or new cable needs the landlord or the HOA in the conversation before the technician arrives. And if the building supplies internet as part of the rent, you may not get to choose a provider at all, which is a different set of problems worth knowing about before you sign the lease rather than after.

The five-minute trick that saves you an evening of reconnecting

Here is the part nobody tells you, and it is the most useful thing in this article. Every wireless device you own — the printer, the TVs, the streaming sticks, the smart plugs, the thermostat, the doorbell, the robot vacuum, the games console — has your old Wi-Fi name and password memorised. They do not know you moved. They will happily rejoin a network with that name and password wherever it appears.

So if you are keeping your own router, do nothing to it. Plug it in at the new house, and the entire household reconnects by itself while you are still carrying boxes. If you are being given a new provider gateway, log into it on day one and set its Wi-Fi network name and password to exactly the old ones. Same name, same password, same capitalisation. That single change converts an evening of hunting for setup menus on a dozen devices into no work at all.

The exceptions are worth knowing so they do not surprise you. Anything that connected by cable rather than Wi-Fi obviously needs plugging back in. Anything with a fixed address configured by hand — some printers, some cameras, the odd network drive — may need that address adjusting to the new router's numbering. Printers are the usual straggler: a printer that never rejoins is not broken, it is still calling out for a network that no longer exists, and we have a whole guide to putting one back on a new Wi-Fi. And devices that were paired to a smart-home hub keep their pairing, but the hub itself has to be back online before any of them look like they are working.

If you work from home, plan for the gap rather than hoping there is not one

Assume, for planning purposes, that you will be without proper internet for at least part of the first day, and possibly longer if the install needs a second visit — which happens more often than the schedule implies, usually when the technician finds the wiring at the property is not what the order said it was.

The practical cover is your phone. Check before the move that your mobile plan allows hotspot use and roughly how much of it you get, because that number is the difference between a workable day and a very bad one. If your work depends on a video call that cannot move, treat the first working day at the new address as a coffee-shop or office day and give the install a clear run. And if a spouse and two children are all going to be on that hotspot, know in advance that a phone will do email and a call but will not carry a household.

One more, for anyone whose service is 5G home internet rather than cable or fiber: do not assume the gateway simply works at the new house because it is wireless. These services are sold and approved for a specific service address, and coverage and capacity vary by neighbourhood and even by building — T-Mobile's own guidance is to check availability at the new address first and update the address on the account, after which the gateway does come with you and there is no cost to transfer. The equipment being portable is not the same thing as the service being portable.

The Southern California version

Two local realities shape this more than they would elsewhere. The first is how uneven the map is here. Fiber has been going into Southern California street by street for years, which means availability changes over short distances — the address that had a single cable option three years ago may now have two fiber providers, and the reverse is true a block away. Moving is the one moment when checking is actually worth your time, because you are going to be on the phone to somebody anyway. If the new address turns out to have neither cable nor fiber, which still happens in the hillside and backcountry parts of our service area, there are real options and we have written them up separately.

The second is that a great many moves here are not chosen. Households displaced by the January 2025 Eaton Fire across Pasadena and Altadena have been doing this repeatedly — into a rental, then sometimes into another one, then back to a rebuilt house — and doing it while dealing with far more important things. If that is you, the two steps that save the most grief are the boring ones: get the return receipt for any leased equipment so a charge cannot follow you around, and put the same Wi-Fi name and password on each new router so the household stops re-pairing devices at every stop.

How we can help

Most of this you can do yourself with a phone call and a bit of sequencing, and if that is what you take from this article then it has done its job. The provider ordering, the disconnect date, the box of equipment going back to the UPS Store — none of it needs a technician.

Where we earn our keep is the other end: the new house, the day it all has to work. That is setting the router up in the right place rather than where the cable happened to arrive, getting coverage into the room that the gateway cannot reach, putting the old Wi-Fi name back so the household reconnects itself, and rounding up the stragglers — the printer, the network drive, the cameras, the office VPN, the small-business setup that has to be taking payments on Monday morning.

We look after computers, networks, printers and small-business IT across Southern California and the Coachella Valley, onsite or remotely, and we do not sell internet service or hardware — so if the honest answer is "keep the account you have and take your own router," that is what you will hear, and it will not cost you a commission to anybody.