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Standby generator installation cost in Dallas: what 804 city permits show
The median declared value for residential standby generator installation in Dallas was $8,876. Half of all jobs fell between $5,000 and $15,514.
A whole-home standby generator shows up twice in the Dallas permit file: once as an electrical permit for the generator and transfer switch, and once as a plumbing permit for the gas line that feeds it.
The electrical permits had a median declared value of $8,876. The record does not say whether a declared value includes the generator unit itself, which is one reason the spread is so wide.
What moves the number
| Group | Permits | Median | Middle half |
|---|---|---|---|
| Gas line for a generator | 713 | $2,000 | $1,600 to $3,000 |
Residential plumbing permits whose description names a generator.
What stands out
- Half of the electrical permits were declared between $5,000 and $15,514.
- The gas-line permit added a median of $2,000.
What this number is, and is not
- It is the job value a contractor declared on a City of Dallas permit application. It is not an invoice, and the city does not audit it.
- It covers work done under a permit inside the city limits. Jobs done without a permit, and jobs in the suburbs, are not in the file.
- It describes the spread of past jobs. It is not a quote for your home.
- How we picked these permits: Electrical permits whose description names a generator.
Before you sign
- Put your quote next to the middle-half range above. If it sits outside, ask what is different about your job.
- Ask whether the price includes pulling the city permit, and ask for the permit number.
- Get the scope in writing: the generator's size in kilowatts, the transfer switch, the gas line, the concrete pad, and who pulls each of the two permits.
- Texas licenses electricians and electrical contractors through the Texas Department of Licensing and Regulation (TDLR). Search TDLR licenses.
More Dallas jobs
Source: City of Dallas Building Permits (Dallas OpenData, dataset e7gq-4sah), read November 15, 2026. Values between $150 and $150,000 are counted. Full method.