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How toWifi & Networking

How do I get good Wi-Fi in every room of my house?

Start by moving the router to a central, open spot, away from the floor and from other electronics, then update its firmware. If some rooms are still weak, add a mesh system: the router connects to your modem, and each satellite goes within 25 to 50 feet of the router or another satellite. Cabling through walls is work to hand to a licensed pro.

Free to ask. Local shops send quotes, and you pay only when you book one.

By Kasra Taheri, Founder, LoclisPublished

Researched and drafted with AI, then checked claim by claim against the sources listed below before it was published. Prices and rules change; the dates beside each source say when it was last checked.

Step by step

Read when to stop and call a pro, further down this page, before you start.

  1. Step 1: Test the weak rooms

    Run a speed test on your phone in the room next to the router, then in each room where the signal is weak, and write the results down.

  2. Step 2: Move the router to a central spot

    Put the router in the middle of the house, out in the open and off the floor, away from thick walls, metal and other electronics.

  3. Step 3: Update the router

    Check the manufacturer's website for the latest firmware, or turn on automatic updates if the router offers them.[3]

  4. Step 4: Test again

    Repeat the speed test in the same rooms. If they are now fine, stop here.

  5. Step 5: Choose a mesh kit that fits the house

    Check the kit's estimated coverage in square feet, and plan on extra satellites for a large, brick or multi-floor home.[1]

  6. Step 6: Connect the mesh router to the modem

    The mesh router must be physically connected to your modem.[1] Plug it in and follow the maker's phone app.

  7. Step 7: Place each satellite

    Plug in each satellite within 25 to 50 feet of the router or another satellite, in the open, ideally one floor or one room closer to the dead zone.[1]

  8. Step 8: Lock down the network

    Set a strong Wi-Fi password and a new router administrator password in the app.[3]

Move the router first, then add a mesh

Start with the router you already have. Put it in the middle of the house, in the open and off the floor, and your weak rooms may already improve. If they do not, a mesh system is the usual next step. Cabling through walls is the step that moves the job to a pro.

Most dead spots have a plain cause. A single router broadcasts from one point, and TP-Link notes that traditional routers broadcast from a single point, creating weak spots and dead zones in larger homes or spaces with thick walls.[2] The farther a room is from the router, and the more walls and floors in between, the weaker the signal.

A white cube-shaped Wi-Fi router with a round screen on its front showing upload and download speeds, standing on a desk
Photo: Haydn Blackey from Cardiff, Wales, CC BY-SA 2.0, via Wikimedia Commons

Measure before you change anything

Walk through the house with your phone and run a speed test next to the router, then in each room with a problem. Write the numbers down. You are looking for the rooms that are far below the rest, not for a perfect score, and the notes tell you afterwards whether the change helped.

Fix the router's spot and software

A router on the floor of a closet at one end of the house is the most common cause. Move it somewhere central and open, up on a shelf, away from big metal objects, thick masonry and a microwave. The cable from the modem usually limits where it can go, and a longer Ethernet patch cable between modem and router is an easy plug-in fix.

Then update it. Firmware updates enhance product performance, fix flaws, and address security vulnerabilities,[3] and some routers have the option to turn on automatic updates.[3] Change your router's administrator password to help protect it from an attack using default credentials.[3]

Add a mesh system when one router is not enough

A mesh kit is a main router plus satellites that blanket the house with one network. The pieces to get right:

  • The main unit goes at the modem. The WiFi mesh router must be physically connected to your modem.[1]
  • Satellites go halfway, not in the dead zone. Satellites should be placed within 25-50 feet from the router or at least one other satellite.[1] Put one where it still gets a strong signal, on the way to the weak rooms.
  • Match the kit to the house. NETGEAR advises: "Always check the mesh system's estimated WiFi coverage in sq. ft."[1] Its kits include a WiFi mesh router and 1-4 mesh satellite units.[1]
  • Dense or multi-floor homes need more units. NETGEAR asks: "Is your home built from signal-reducing dense materials like bricks? Do you have a wide or multi-floor layout? Are there outdoor areas to cover? If so, you might need more satellite units for denser or wider WiFi coverage."[1]

If an outlet is near each satellite spot, wireless backhaul works. Where you can run a cable along a baseboard to a satellite, a wired link is better: TP-Link describes how its system seamlessly blends wired and wireless backhaul between units for faster speeds and lower latency.[2]

What a licensed pro adds

Everything above plugs into an outlet. Running Ethernet through walls, attics or between floors is different. In Virginia, the Board for Contractors defines the electronic and communications specialty as installation, repair, improvement, or removal of electronic or communications systems annexed to real property including telephone wiring, computer cabling.[5] If the work you are considering is valued at $1,000 or more, a valid Virginia Contractor's License is required for the license category in which the contractor is to work.[6]

The building code does not require a permit for the cabling itself in most homes. It exempts installation of wiring and equipment that (i) operates at less than 50 volts, (ii) is for broadband communications systems,[4] except when any such installations are located in a plenum, penetrate fire rated or smoke protected construction.[4] A drilled fire-rated wall, such as one between an attached garage and the house, is one reason to have a pro do it.

Stop and call a pro if

  • You want cable through walls, ceilings or between floors. That is cabling work for a contractor, and the cost will depend on how many runs and how hard they are to reach.
  • The cable would go through a fire-rated wall or ceiling, such as between an attached garage and the house, or run in a plenum space.[4]
  • Outlets are missing where you need power, or you are tempted to open a wall box. That is electrical work.
  • The signal is poor even next to the router, which can mean a bad line or modem; your internet provider, not a mesh kit, fixes that.
  • The quote crosses $1,000. Check that the contractor's licence covers the work before signing.[6]

Getting help in Virginia

If you are weighing the cost, read how much whole-house Wi-Fi costs in Virginia and whether to hire someone to set up a mesh system. For the wider picture, see whether paying someone to set up a smart home is worth it, browse security and smart home pros, or see more smart home answers.

When you are ready, describe your wiring job once and licensed local pros quote it.

Common questions

Where is the best place to put a Wi-Fi router?
Usually near the middle of the house, in the open and off the floor, where the signal has the shortest path to the rooms you use. Avoid corners, cabinets, basements and spots right next to large metal objects or thick masonry.
Will a mesh system fix a dead zone?
Often, if the satellite sits where it still gets a good signal. NETGEAR says satellites should be placed within 25-50 feet from the router or at least one other satellite. A satellite placed inside the dead zone itself has nothing strong to relay.
Do I need a mesh system, or will a better router do?
In a small or single-floor home, a better-placed router may be enough. TP-Link says traditional routers broadcast from a single point, creating weak spots and dead zones in larger homes or spaces with thick walls, which is the case for mesh.
Does running Ethernet between mesh units help?
Yes. TP-Link says its Deco systems blend wired and wireless backhaul between units for faster speeds and lower latency. But running cable through walls, ceilings or fire-rated construction is work to hand to a contractor.
Is it safe to update my router's firmware myself?
Yes, if you follow the maker's instructions and do not unplug it midway. CISA says firmware updates enhance product performance, fix flaws and address security vulnerabilities, and that some routers can update automatically.

Sources

  1. [1] Mesh WiFi Systems for Seamless Whole-Home Coverage, NETGEAR. Checked October 27, 2026.
  2. [3] Home Network Security, Cybersecurity and Infrastructure Security Agency. Checked October 27, 2026.
  3. [4] 13VAC5-63-80. Section 108 Application for permit (Virginia Uniform Statewide Building Code), Virginia Administrative Code, Virginia General Assembly. Checked October 27, 2026.
  4. [5] 18VAC50-22-30, Definitions of specialty services (Board for Contractors Regulations), Virginia Administrative Code, Virginia General Assembly. Checked October 27, 2026.
  5. [6] What You Should Know Before You Hire a Contractor, Virginia Board for Contractors, DPOR. Checked October 27, 2026.

Want a pro to handle it?

Describe the job once. Licensed local businesses send quotes, and you pay only when you book one.