Coztech Solutions LLCCoztech Solutions LLC
    Coztech Safe and Sound Home

    A smart home that still works when the internet does not.

    Lighting, entry, and nighttime safety built on physical switches and remotes — for Oakland County families helping someone stay comfortably in their own home.

    The problem

    Most smart homes fail the one test that matters

    Ask any smart home to keep working with the Wi-Fi unplugged, and most of them go dark.

    That is a minor annoyance in a house full of phones and other light switches. It is something else entirely when the person using the room needs the light on to get to the bathroom at 2 a.m. — and the only way to turn it on is to unlock a phone and find the right app.

    We build for the failure, not the demo. Every device that goes into a home is chosen for one reason: if the internet, the router, and the app all disappear, the light still turns on.

    How we are different

    Built the way we would build it for our own family

    Physical controls first

    Wall dimmers, handheld remotes, and tabletop buttons — not menus. Nobody should have to unlock a phone to turn on a lamp.

    Remotes that work without the hub

    Our remotes pair directly to the light. Unplug the router, unplug the hub — the bedroom lamp still responds instantly.

    Batteries measured in years

    The remotes we install run about ten years on a single coin cell, so there is nothing to remember and no maintenance call to make.

    We test it the hard way

    During setup we unplug the internet and check every light, with you in the room. Then we tell you plainly what still works and what does not.

    Controls you can find in the dark

    Every remote is labeled with its room and anchored to a fixed spot, so the switch is always in the same place in every room.

    What we install

    A setup chosen for the home, not sold as a bundle

    Lighting on a hand or a wall switch

    Familiar paddle dimmers for the main rooms, plus a handheld remote for the same light that works even when the network does not.

    Bedside and hallway lamps

    A lamp dimmer with a remote on a weighted tabletop base, so the lamp answers to a button and the remote stays where it was left.

    Hands-free path lighting

    Motion-sensing switches for hallways and bathrooms. Walk in, light on, no fumbling for a switch in the dark.

    Warm light at night

    Where sleep matters, tunable bulbs that shift from bright and clear during the day to warm and amber in the evening.

    Internet that survives a blackout

    Battery backup for the modem and router, so the Wi-Fi, the phone, and the home connection to family stay up when the power does not.

    Entry that works without a phone

    A keypad deadbolt alongside the existing key — a code for the door, a key for the lockbox, and no app required for either.

    What we will not install

    We turn down work that looks impressive and fails in practice

    • Wi-Fi buttons that sleep. They take seconds to wake up, and they drop off after a router restart. We do not use them.
    • Bluetooth-only remotes. They lose their pairing every time a TV or speaker updates. We do not use them.
    • Phone-first systems. If the only way to turn on a light is an app, it is not ready for this.
    • Smart bulbs in a switched socket. Flip the wall switch and the bulb loses power — now the room is dark and the app says the light is offline. We replace the switch instead.

    If a device cannot survive a router reboot, it does not go in the house.

    How it works

    From first walk-through to a home that holds up

    01

    Home assessment

    We walk the house with you, look at the lighting, the entry, and where the router lives, and talk about how the home is actually used day to day.

    02

    Written plan and quote

    Exactly what goes where, by name, before anything is purchased or installed. Nothing gets ordered until you approve it.

    03

    Installation and labeling

    Devices installed, remotes labeled by room, controls positioned the same way in every space.

    04

    The kill test

    We unplug the internet while you are standing there and prove which controls keep working — then hand you a printed one-pager for the fridge.

    For the family

    For the family member who lives out of town

    A lot of these calls start with someone two states away who just wants to stop worrying.

    You do not need to be there. We handle the assessment, the installation, and the walkthrough with your family member, in plain language, with no jargon and no pressure to buy anything that will not get used. Afterwards you get the same one-pager they do — so when the phone rings about the bedroom lamp, you already know what is in front of them.

    For the computer side of staying independent — scam protection, updates, and a real person to call when something looks wrong — see Coztech Managed Guard.

    What it costs

    Every home is different, so we quote it that way

    We do not publish a package price, because the right setup for a ranch home and the right setup for a two-story with a basement are not the same job.

    Instead you get a written quote covering equipment and labor, with the equipment listed by name so you can see exactly what you are paying for. Nothing is ordered or installed until you approve it.

    We serve West Bloomfield, Clarkston, and the surrounding Oakland County communities.

    Common questions

    Will the lights work if the internet goes out?

    Yes. The remotes we install are paired directly to the lights, so they keep working with the router and the hub both unplugged. Remote door unlocking and voice control need the network — we demonstrate the difference in person before we leave.

    Does the person using it need a smartphone?

    For everyday lighting and entry, no. A phone makes some things easier, but nothing we install depends on one for basic use.

    What happens if the wrong button gets pressed?

    Nothing breaks. The worst case is a light turns on or off. Every remote is labeled by room, and the standard wall switches keep working the way they always have.

    Is this a subscription?

    No. The setup is a one-time project with a written quote covering equipment and labor. Monthly device-care plans like Coztech Managed Guard are separate and optional.

    What areas do you serve?

    West Bloomfield, Clarkston, and the surrounding Oakland County, Michigan communities.

    Set it up once, and stop worrying about it

    Start with a home assessment. We will walk the house, tell you what is worth doing and what is not, and leave you with a plan — whether or not you hire us.

    Guides for getting started with smart home tech

    Free, plain-English walkthroughs from the Coztech blog.

    Keeping the home safe from scams

    What a fake support call sounds like, and how families stay in touch safely.