How much does smart home wiring cost?

New construction: basic Ethernet package $1,500-$3,000, comprehensive (Ethernet + coax + speaker + security pre-wire) $3,000-$8,000, premium $8,000-$15,000+. Retrofit (existing home): single Ethernet drop $150-$400, whole-home (10-20 drops) $2,000-$6,000, comprehensive $5,000-$15,000+. Networking equipment adds $300-$1,000+ (router, switch, access points). New construction is far cheaper — running cables through open walls costs a fraction of retrofitting finished walls. DIY can save 50-70% on labor if you're comfortable with low-voltage wiring. What cables should I run in my house?

What cables should I run in my house?

Priority order: Cat6/Cat6a Ethernet (most important — run to every room, TV locations, office, camera locations, and Wi-Fi access point locations). RG6 coax (TV locations for antenna/cable). Speaker wire (14-gauge for living areas, kitchen, outdoor). HDMI (TV locations from media closet). Low-voltage wire for doorbell cameras, thermostats, and motorized shades. Run more than you think you need — it's cheap during construction but extremely expensive to add later. Pull conduit to key locations for future flexibility. Is it worth wiring a house with Ethernet?

Is it worth wiring a house with Ethernet?

Absolutely. Ethernet provides faster, more reliable connections than Wi-Fi for devices that stay in one place (TVs, gaming consoles, desktops, security cameras, streaming devices). It also enables superior Wi-Fi: hardwired access points on each floor provide blanket wireless coverage without dead zones. The average home now has 20-30+ connected devices — a wired backbone keeps the network from bogging down. Cost during new construction is minimal ($1,500-$3,000 for a basic package). Even in existing homes, adding key Ethernet drops ($150-$400 each) dramatically improves network performance. Should I run Cat6 or Cat6a?

Should I run Cat6 or Cat6a?

For most homes, Cat6 is sufficient. Cat6 supports 10 Gbps up to 55 meters (180 feet) — well within residential distances. Cat6a supports 10 Gbps up to 100 meters (328 feet) and has better shielding against interference. The cost difference is small ($0.10-$0.15/ft more for Cat6a). If you're building new or running cable through walls (where replacing it later is expensive), Cat6a is worth the slight premium for future-proofing. For short runs and retrofit drops, Cat6 is perfectly fine. Don't bother with Cat5e for new installations — Cat6 is barely more expensive and much better performance.

Article

Home Improvement

Smart Home Wiring Guide: Cost, Planning & What to Run

Lumberama Editorial Team, Smart Home & Electrical Specialists Jan 8, 2026 10 min read

Why Structured Wiring Matters

The problem with Wi-Fi alone: Wi-Fi is convenient but has limitations: signal degrades through walls, floors, and distance. Interference from neighbors' networks, appliances, and building materials. Speed drops as more devices connect (the average home now has 20-30+ connected devices). Latency (delay) is higher than wired connections (matters for video calls, gaming, and security cameras). Wi-Fi dead zones are common in larger homes.

What structured wiring provides: A hardwired network backbone throughout your home. Reliable, high-speed connections for devices that need them most. Centralized distribution panel for managing all connections. Future-proofing (wired infrastructure lasts decades; Wi-Fi standards change every few years). Better Wi-Fi: hardwired access points in each area of the house provide blanket coverage and eliminate dead zones.

Best approach: Use structured wiring as the backbone, with Wi-Fi access points connected to that backbone for wireless devices. Hardwire everything that stays in one place (TVs, desktops, gaming consoles, security cameras, streaming devices). Use Wi-Fi for mobile devices (phones, tablets, laptops). This gives you the best of both worlds: wired reliability where it matters, wireless convenience where you want it.

What to Wire

Ethernet (Cat6/Cat6a): The most important cable to run. Cat6: supports 10 Gbps at up to 55 meters (good for current and near-future needs). Cat6a: supports 10 Gbps at up to 100 meters (premium choice, slightly more expensive). Run to: every room (at least 2 drops per room), TV locations (streaming, gaming), office/desk locations, security camera locations, Wi-Fi access point locations (ceiling or high wall — one per floor or 1,000-1,500 sq ft). Cost: $0.25-$0.50 per foot (cable). Installed: $100-$300 per drop (professional).

Coaxial (RG6): Still useful for: cable/satellite TV connections, antenna connections, MoCA networking (Ethernet over coax — surprisingly fast). Run to: TV locations (even if you stream — you may want antenna access). Cost: $0.15-$0.30 per foot (cable).

HDMI (in-wall rated): Run to: TV locations from a media closet (allows hiding AV equipment). Use in-wall-rated HDMI cables (CL2 or CL3 rated for building codes). Consider: fiber HDMI for runs over 50 feet (standard HDMI degrades over distance). Alternative: HDBaseT (transmits HDMI over Cat6 — up to 330 feet).

Speaker wire: For in-wall or in-ceiling speakers. 14-gauge for runs under 50 feet. 12-gauge for longer runs. Run to: living room, family room, kitchen, outdoor entertaining areas, master bedroom. CL2 or CL3 rated for in-wall use.

Low-voltage wiring for smart devices: Doorbell camera: run Cat6 (for PoE — Power over Ethernet cameras) or 18/2 thermostat wire (for Ring-style doorbells). Smart thermostat: most use the existing thermostat wire (18/5 or 18/8 is ideal for modern smart thermostats). Motorized shades: run 14/2 or 16/2 power wire to each window. Security sensors: run 22/4 wire to each door and window sensor location.

Planning

Central distribution panel: All cables run to a central location (structured media panel or network closet). Common locations: basement utility room, closet on the main floor, garage. Requirements: power outlet, adequate ventilation (networking equipment generates heat), and enough space for a patch panel, switch, router, and any other equipment. A structured media enclosure (On-Q, Leviton) mounts in the wall and organizes everything. Cost: $100-$500 for the enclosure.

How many drops per room: Living/family room: 2-4 Ethernet + 1-2 coax + speaker wire. Bedrooms: 2 Ethernet (desk + TV area) + 1 coax. Kitchen: 1-2 Ethernet (smart appliances, display, TV). Home office: 4+ Ethernet (desk, printer, secondary devices). Security cameras: 1 Ethernet each (PoE). Wi-Fi access points: 1 Ethernet each (ceiling or high wall).

Future-proofing tips: Run more cables than you think you need (it costs very little extra during construction but is very expensive to add later). Pull conduit (empty plastic tubing) to key locations (you can pull new cables through conduit in the future without opening walls). Label every cable at both ends (saves hours of troubleshooting). Use a patch panel at the distribution point (organizes connections and makes changes easy). Run all cables in a star topology (every cable goes from the room to the central panel — not daisy-chained).

When to wire: During new construction: easiest and cheapest (walls are open). During major renovation: take advantage of open walls. Existing home (retrofit): more difficult and expensive, but possible. Use existing pathways (attic, basement, conduit) to minimize wall openings.

Cost

New construction (easiest): Basic package (Ethernet to each room + living areas): $1,500-$3,000. Comprehensive package (Ethernet, coax, speaker wire, security pre-wire): $3,000-$8,000. Premium package (above + whole-home audio, motorized shade pre-wire, extensive camera coverage): $8,000-$15,000+.

Retrofit (existing home): Single Ethernet drop: $150-$400 (depends on accessibility). Whole-home Ethernet (10-20 drops): $2,000-$6,000. Comprehensive retrofit: $5,000-$15,000+.

Networking equipment: Router: $100-$350 (quality standalone router). Mesh Wi-Fi system (for whole-home coverage): $200-$500. Managed network switch (8-24 port): $50-$200. Patch panel: $30-$80. PoE switch (powers cameras and access points): $100-$300. Wi-Fi access point (per unit): $100-$250.

DIY savings: If you're comfortable with low-voltage wiring, DIY can save 50-70% on labor. Cable is inexpensive ($50-$150 for a 1,000 ft box of Cat6). The main cost is labor (fishing cables through walls, terminating connectors). Tools needed: cable crimper ($30-$60), cable tester ($20-$40), fish tape or rods ($20-$50), and low-voltage brackets ($2-$5 each). New construction: very DIY-friendly (open walls). Retrofit: moderate to difficult (fishing through finished walls requires more skill and patience).

Networking Best Practices

Network layout: Modem (from ISP) → Router → Switch → All wired devices. If using Wi-Fi access points: Router → Switch → Access points (hardwired via Ethernet). This gives you blanket Wi-Fi coverage with the reliability of a wired backbone.

Wi-Fi access point placement: One per floor or per 1,000-1,500 sq ft. Mount on the ceiling or high on the wall (unobstructed signal coverage). Central location on each floor. Hardwired to the switch via Ethernet (use PoE — Power over Ethernet — to power the access point through the Ethernet cable, no separate power outlet needed). Recommended: Ubiquiti UniFi, TP-Link Omada, or similar prosumer-grade access points ($100-$250 each).

Network switch selection: Unmanaged (plug and play): $20-$50 (fine for most homes). Managed (VLAN support, monitoring): $50-$200 (recommended if you want to separate IoT devices from your main network for security). PoE (powers devices through Ethernet): $100-$300 (essential if using PoE cameras and access points). Get enough ports: count all your Ethernet drops + cameras + access points + a few spare ports.

Security considerations: Create a separate VLAN or network for IoT devices (smart bulbs, thermostats, cameras) — keeps them isolated from your computers and personal data. Change default passwords on all networking equipment. Enable WPA3 encryption on Wi-Fi. Keep router firmware updated. Use a strong unique Wi-Fi password. Consider a guest network for visitors.