What to Do in the First 7 Days in Your New Home
What to do when you arrive at your new home: a day-by-day guide to the first 7 days, from utilities and security to unpacking without chaos or surprise expenses.

You got the keys, and the house is finally yours. But between the stacked boxes, the exhaustion of moving, and the endless to-do list, it's easy to lose track of what to do when you arrive at a new home in an orderly way. The first seven days set the tone for how you'll live in that space for years to come: if you organize this first week well, you avoid duplicate expenses, forgotten paperwork, and that "I can't find anything" stress that can drag on for weeks. Here is a day-by-day plan, designed for the Mexican context, covering the essentials of security, utilities, and organization.
Day 1: security and access first
The first day isn't for unpacking the dishes; it's for taking physical control of the house. You never know how many copies of the keys are floating around from previous owners or tenants, so changing the main locks (front door, service entrance and, if applicable, the vehicle gate) should be one of the first things you do, even before moving the big sofa.
Day 1 security checklist
- Change or rekey all exterior locks
- Test windows, security bars, and gates (make sure they close and lock properly)
- Locate the main water shutoff valve and the main electrical breaker
- Check that smoke detectors work, or install at least one
- Save the local emergency number and the number of the nearest fire department
If the property has an alarm or cameras installed by the seller, ask them to share (or reset) usernames and passwords from day one. And if you're going to install a new system, take advantage of the fact that the house is still half empty: it's much easier to run wiring without moving furniture.
Days 2-3: activate and transfer utilities
Without electricity, water, and internet, any move quickly becomes uncomfortable. Most of these procedures in Mexico can be started online or by phone, but it's wise to allow a few days of margin because some (like signing up for home internet) can take a while to schedule the installation.
| Utility | What to do | Approximate time |
|---|---|---|
| Electricity (CFE) | Change the name on the contract or sign up for new service with ID and proof of ownership | Same day to a few days, depending on the procedure |
| Water | Procedure with the corresponding municipal or state water utility | Varies by municipality |
| Gas (stationary tank or cylinder) | Confirm the provider, check the tank, or order the first supply | Roughly 1-2 days, depending on the provider |
| Internet and phone | Sign up for service or transfer an existing one; schedule a technician visit | Days to 1-2 weeks |
| Property tax (predial) owner registration | Update the owner's name with the cadastral office or municipal treasury | Can be done in the following weeks |
| Water (change of account holder) | Register your name as the account holder with the water utility, a separate procedure from the initial service activation | Can be done in the following weeks |
Keep digital copies of every contract and account number in a shared folder or on your phone: it will save you frustrating phone calls when you need to report an outage later on. If you bought with a mortgage, also check whether the bank requires updated proof of address; you can review the whole process in our guide to getting a mortgage step by step.
Day 4: deep cleaning and technical inspection
It's much easier to clean thoroughly in an empty or nearly empty house than in one full of boxes and furniture. Take advantage before everything is put away to scrub floors, disinfect bathrooms and the kitchen, and clean inside closets and pantries that you probably won't empty again for months.
This is also the time to do a basic technical inspection, something different from the legal review you already did before signing:
- Test every electrical outlet with a charger or a portable lamp
- Open and close water taps, looking for leaks or low pressure
- Check that the water heater (boiler) and its safety valve work properly
- Verify there is no moisture, stains, or new cracks on ceilings and walls
- Test that doors, windows, and blinds work properly
If you find anything that doesn't match what you reviewed before the purchase, document it with dated photos. If you're still within the warranty period agreed with the seller or developer, this record will serve as your backup.
Day 5: unpack with a strategy, not out of urgency
The most common mistake is opening boxes at random depending on what turns up. Instead, follow an order that puts function ahead of aesthetics: first what you need to live, then what you need to feel comfortable, and last the decorative items.
- Basic kitchen: everyday dishes and cookware, coffee or tea, cleaning supplies
- Main bathroom: towels, toiletries, spare toilet paper
- Primary bedroom: bed assembled and seasonal clothing
- Work or study area: if you work from home, this is usually an early priority
- Rest of the house: room by room, not by type of item, to avoid going back and forth
Practical tip
Leave the boxes of decorations, nonessential books, and seasonal items for last, even if that means they stay closed for a couple more weeks. There's no rush: a house that is put in order calmly is more enjoyable than one that quickly fills up with poorly placed objects.
Day 6: administrative and address-change paperwork
With the house now functional, dedicate a day to updating your address in all the places that tend to be forgotten until they cause a problem:
- INE voter ID (change of address, if applicable)
- Banks, credit cards, and account statements
- SAT (tax authority), if you have registered tax activity under your previous address
- Insurance (auto, life, medical expenses) so the policy has your correct address
- Your children's school, if applicable, and streaming services or online shopping accounts with recurring shipments
Important notice
Information about tax and identification procedures may change depending on the authority and the time. This article is for informational purposes only and does not replace professional legal, tax, or notarial advice; confirm current requirements directly with the SAT, the INE, or a professional before carrying out any procedure.
If you also bought the house recently, this is a good time to keep all the documentation from the transaction in one place (physical and digital). You can use our checklist of documents for buying a house to verify that nothing is missing from your file.
Day 7: get to know the neighborhood and wrap up loose ends
The last day of the first week is for getting out of the house, not for staying buried in boxes. Walk around the colonia (neighborhood), find the nearest pharmacy, market or supermarket, a doctor's office, and a safe route for walking or running if that's your habit. Introduce yourself to your immediate neighbors; in many Mexican colonias, the neighborhood network ends up being the first line of security and support in any emergency.
Also take the chance to check whether there is a residents' association or a maintenance fee, and exactly what it covers (security, common areas, lighting). If your home is inside a development with amenities, review the internal rules to learn the schedules and restrictions before any misunderstanding arises.
Don't let this slide
If you don't have home insurance yet, this first week is the time to get it, not week twenty. A fire, a serious leak, or a burglary can happen precisely when the house is most vulnerable, with doors and windows constantly in motion because of the move.
Close out the week with a short list of real (non-urgent) to-dos for the coming weeks: installing curtains, maintaining the garden, checking the condition of the exterior paint. Having that list in writing keeps the house from staying "half-finished" indefinitely.
Frequently asked questions
What should you do on the first day in a new home?
The priority is to take control of security: change the locks, verify that doors and windows close properly, locate the main water shutoff valve and the main electrical breaker, and confirm that the smoke detectors work. Unpacking can wait; security can't.
How long does it take for utilities like electricity and water to be activated?
It varies a lot depending on the municipality and the utility provider. Electricity is usually sorted out the same day or within a few days with the change of name on the contract; water depends on the corresponding municipal procedure. Internet is usually the slowest because it requires a technician visit for installation, so it's best to schedule it in advance.
Is it necessary to change the locks on a newly purchased home?
It's highly recommended, although not required by law. There's no way to know for certain how many copies of the keys exist from previous owners, tenants, or maintenance staff, so changing or at least rekeying the main locks is a basic, low-cost security measure.
In what order should you unpack the boxes?
Prioritize function: first the basic kitchen and main bathroom, then the primary bedroom and work area, and last decorative or seasonal items. Unpacking by room and by priority of use, rather than at random, saves time and avoids the chaos of boxes opened with no system.
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