Pre-Wire Cat6a During Your Toronto Renovation: The Cheapest Networking Decision You'll Ever Make

The Single Best Networking Decision You Can Make

If your Toronto home is in any kind of renovation right now — kitchen, bathroom, basement finish, second-storey addition, full gut — the single highest-ROI networking decision you can make is to pre-wire Cat6a everywhere while the walls are open.

The cost difference between pre-wire and retrofit is dramatic:

Pre-wire during renovation: $500 to $1,500 per room
Retrofit into a finished home: $1,500 to $3,000 per room

That is a 3x to 5x labour multiplier just because the drywall is in the way. On a typical 12-drop install, the labour delta is $8,000 to $18,000.

Why Pre-Wire Is So Much Cheaper

When walls are open, pulling cable is fast. We staple Cat6a to studs, drill top plates with a long bit, and run cable through the bays. A drop that takes 30 minutes during construction takes 2 to 4 hours after drywall.

Once drywall is up, we have to:

Find studs and bays without damaging finishes
Cut access holes (and patch them)
Fish cables through plates without nicking electrical
Restore drywall, prime, paint, sometimes wallpaper or trim
Sometimes remove and reinstall millwork or cabinetry

Each of those steps is billable time. Pre-wire skips all of it.

How Many Drops to Pull

Our default Toronto pre-wire spec for a typical detached home:

Per TV location: 2 Cat6a drops (one for the TV, one for any device behind it — Apple TV, console, soundbar bridge). Per desk / office area: 2 Cat6a drops. Per ceiling AP location: 1 Cat6a drop (consider PoE++ — pull dual cables if you ever want a second AP nearby). Per camera location: 1 Cat6a drop (PoE camera). Behind every door bell, front and side entries: 1 Cat6a + low-voltage doorbell wire. Behind every smart thermostat: 1 Cat6a (for some integrations) plus the standard thermostat low-voltage cabling. Garage: 1 Cat6a drop (for cameras, EV chargers with networking, smart garage door). Basement utility area: 1 Cat6a drop (if separate from the main panel). A typical detached Toronto home runs 15 to 25 drops total. A larger home runs 30 to 40.

The Pre-Wire Process

Here is how we run a pre-wire on an active renovation:

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Phase 1: Design (before drywall)

Walk-through with the customer and the GC
Mark every drop location with a coloured marker on the studs
Confirm panel location and electrical feed
Note any conflicts with HVAC, plumbing, structural work

Phase 2: Pull (rough-in stage, after rough plumbing/electrical, before insulation and drywall)

Pull all cables back to the panel location
Coil and tag at each end
Photograph every run before drywall covers it (essential for future maintenance)
Test each cable for continuity (full termination happens at trim)

Phase 3: Trim (after drywall, before paint or as part of paint)

Install electrical boxes (low-voltage rings)
Terminate jacks
Install patch panel at structured panel
Test every drop with Fluke or Klein cable certifier
Document and label

Phase 4: Active gear (after substantial completion)

Install router, switch, APs
Configure network, VLANs, Wi-Fi
Hand off documentation

Coordinating with Your GC and Electrician

A good pre-wire happens in tight coordination with:

The GC: schedules the rough-in window, lets us in before insulation.
The electrician: we maintain proper separation from line-voltage runs (perpendicular crossings, 6"+ parallel separation).
The HVAC contractor: we route around ducts and never inside plenum spaces unless using plenum-rated cable.
The plumber: we do not run alongside hot water lines if avoidable.

We have done dozens of Toronto renovation pre-wires and have established workflows with most major Toronto GCs and trades.

Pull More Than You Think You Need

The marginal cost of one extra Cat6a drop during pre-wire is roughly $30 to $80 (cable plus labour for one extra run alongside existing ones). The cost of going back and adding one drop to a finished room is $400 to $700.

Always pull extra:

Behind every TV: pull 3 cables, not 2.
Every desk: pull 2 cables minimum.
One spare cable to the basement, the attic, and the garage.
Every ceiling AP location plus one "future" AP location per floor.

You will not regret it. You will absolutely regret pulling the bare minimum.

Power Considerations During Pre-Wire

While the walls are open, also have your electrician run:

A dedicated 15 A circuit to the structured panel area
An outlet in each AP ceiling box (if powering APs by line voltage instead of PoE — most installs use PoE so this is optional)
An outlet behind every TV
An outlet in any closet that might host a NAS, NVR, or rack

The 120 V work requires a Master Electrician and ESA permit. Low-voltage cabling does not. Both happen at the same time during renovation.

Realistic Cost: Pre-Wire During Toronto Renovation

For a typical detached Toronto home renovation with 18 Cat6a drops, structured panel, and rough-in only (no active gear, no AP install yet):

Cable: $750
Jacks, panel, brackets, low-voltage boxes: $500
Labour, design + pull + termination + test + documentation: $3,500 to $5,000

Total cabling work: $4,500 to $6,500

Adding active gear (UDM Pro + 4 APs + PoE switch + configuration) is another $2,500 to $3,500.

Whole-home networking on a renovation, total: $7,000 to $10,000.

The same project as a retrofit on a finished home: $15,000 to $20,000.

Honest Positioning

Pre-wire Cat6a is low-voltage cabling work. We pull it under our low-voltage scope. Our Master Electrician handles any 120 V tie-ins (dedicated circuit to the network panel, outlets) under proper ESA permit.

We coordinate directly with your GC, your electrician, and your other trades.

Next Step

If your renovation hits rough-in stage in the next 60 days, this is the time to plan. We provide free site visits to renovation projects across the GTA.

[Book a Pre-Wire Assessment](/services/electrical/whole-home-networking)