Installing a generator transfer switch costs $1,450 on average, with most projects between $1,200 and $1,600.1 Manual switches run $400 to $1,300 installed; automatic switches $600 to $2,500.1,2 Prices below are national averages* for 2026.
*National averages, not local quotes. Your price depends on switch type, circuit count, panel condition, permits and local electrician rates.
$1,450
average installed (Angi)
$400–$1,300
manual installed
$600–$2,500
automatic installed
$200–$500
labor (HomeGuide)
What sources say
| Source | Figure | Notes |
|---|---|---|
| Angi | $1,450 average, $1,200 – $1,600 | 2026 national data; type ranges below |
| HomeGuide | Manual $400 – $1,300, automatic $600 – $2,500 | Identical type ranges to Angi, so one shared estimate |
| Electrician Quotes | Manual $1,000 – $2,500, automatic $2,300 – $5,700 | Standardized scopes with government labor data; runs well above the other two |
Electrician Quotes prices the same jobs two to three times higher than the Angi and HomeGuide ranges. The spread reflects scope assumptions, so itemize what each quote includes: switch, inlet box, cord, panel work and permits.1,2,3
Cost by switch type
| Type | Unit (HomeGuide) | Installed (Angi, HomeGuide) |
|---|---|---|
| Manual | $200 – $800 | $400 – $1,300 |
| Automatic | $400 – $2,000 | $600 – $2,500 |
| Interlock kit (alternative) | — | $400 – $850 |
An interlock kit is the budget option: it locks the main breaker against a generator breaker so only one can be on, with no separate switch panel.2
Parts and labor (HomeGuide)
| Item | Cost |
|---|---|
| Transfer switch (unit) | $200 – $2,000 |
| Installation labor | $200 – $500 |
| Power inlet box | $20 – $100 |
| Heavy-duty power cord | $30 – $350 |
| Kit (switch, box, cord) | $300 – $500 average |
What changes the price
| Factor | Effect |
|---|---|
| Manual vs. automatic | Automatic units sense an outage and switch themselves; they cost more and take longer to install (HomeGuide) |
| Circuit count | A 6-circuit switch costs less than a 10-circuit but covers fewer breakers (HomeGuide) |
| Panel condition | Angi warns totals climb if you need a permit or panel upgrade |
| Electrician level | Master electricians charge more than apprentices or journeymen (HomeGuide) |
DIY or hire
This is pro work: a transfer switch ties a generator into your home’s breaker panel, and wrong wiring can backfeed the grid and endanger line workers. HomeGuide and Angi both assume licensed-electrician installation, and many areas require a permit and inspection.1,2 The Home Depot transfer switches category shows current unit pricing if you want to buy the switch yourself and hire the labor.
Related guides
Whole-House Generator Cost
Electrical Panel Upgrade Cost
EV Charger Installation Cost
All cost guides
Sources
1. Angi — Generator Transfer Switch Installation Cost
2. HomeGuide — Transfer Switch Installation Cost
3. Electrician Quotes — Transfer Switch Cost