Generator Installation costs
Compare the project, repair and planning references below before choosing the work for your property. Confirm measurements, existing conditions and the services included in each proposal.
Cost scope: Benchmarks were reviewed October 24, 2026. Figures apply to the scope and market named by each reference. City/state examples outside Portland Metro are not Portland quotes. Labor, equipment, recurring expenses and complete projects are different budgets.
Installation and project costs
Compare alternatives separately. A range includes installation only when its scope says so. Do not add overlapping totals together.
| Project or reference | Published benchmark | Basis and scope |
|---|---|---|
| Cost to install generator transfer switch | $600 – $2,500 | automatic transfer switch installed |
| Cost to install generator transfer switch | $400 – $1,300 | manual transfer switch installed |
| Cost to install generator transfer switch | $400 – $850 | interlock kit installed (switch alternative) |
| Whole house generator cost | $6,000 – $11,000 | total installed (unit & labor) |
| Natural gas generator cost | $1,000 – $4,500 | portable generator (connected to house) |
| Natural gas generator cost | $6,000 – $11,000 | whole-house generator (with installation) |
| Generator cost | $900 – $3,800 | portable generator (connected to house) |
| Generator cost | $6,000 – $11,000 | whole house generator installed |
| Whole-house generator installation cost Charlotte NC | $7,500 – $25,000 | installed |
| Whole-house generator installation cost Charlotte NC | $14,000 – $16,000 | total cost |
| Whole-house generator installation cost Charlotte NC | $3,500 – $12,000 | installation labor |
Labor cost
Labor or hourly figures are separate from equipment purchases. Do not add them to a total that already includes labor.
| Project or reference | Published benchmark | Basis and scope |
|---|---|---|
| Whole house generator cost | $3,000 – $5,000 | to install (labor only) |
Related RemodelRates cost guides
- Cost to install generator transfer switch
- Whole house generator cost
- Natural gas generator cost
- Generator cost
- Whole-house generator installation cost Charlotte NC
- Whole-house generator installation cost Baltimore MD Price verification pending; no price quoted here.
- Whole-house generator installation cost New York NY Price verification pending; no price quoted here.
Explore the related RemodelRates guides for project benchmarks and planning details.
Before requesting bids
Share measurements, photos, location, existing conditions and the desired result. Ask for a written scope covering preparation, permits, removal, material specifications, installation, disposal and finish repairs where relevant. Compare bids using the same quantities and exclusions.
Material cost
Purchase-only prices below are not complete installed totals. Confirm quantities, delivery and product specifications. Do not add these to totals already including materials.
| Project or reference | Published benchmark | Basis and scope |
|---|---|---|
| Natural gas generator cost | $700 – $1,700 | portable generator (unit only) |
| Generator cost | $500 – $2,500 | portable generator (unit only) |