Top Generator Installation Companies in Portland
Generator Installation Cost in Portland
Local ranges, adjusted for area wage and cost-of-living data.
| Service | Typical range in Portland |
|---|---|
| Whole-house standby generator, installed | $11,650–$18,640/job |
| Small standby generator (10-14 kW) | $8,155–$11,650/job |
| Large standby generator (26 kW+) | $17,475–$23,300/job |
Generator Installation prices in Portland run about 17% above the national average, based on what this trade earns in the metro area — so neighbouring cities in the same metro see similar rates.
Quotes on this page come from 3 companies serving Portland, rated 4.6★ on average across 242 customer reviews.
Portland Climate & Seasonal Timing
What Portland's weather means for scheduling generator installation.
- Last spring frost
- February 26
- First fall frost
- November 30
- Annual precipitation
- 42.85"
- Heating degree days
- 4,235
- Cooling degree days
- 413
| Month | Low | High | Precip |
|---|---|---|---|
| Jan | 37.5° | 46.9° | 6.14" |
| Feb | 38.4° | 50.8° | 4.63" |
| Mar | 41° | 56° | 4.5" |
| Apr | 44° | 60.8° | 3.4" |
| May | 48.9° | 67.4° | 2.55" |
| Jun | 53.3° | 72.9° | 1.69" |
| Jul | 57.4° | 79.6° | 0.59" |
| Aug | 58° | 80.1° | 0.71" |
| Sep | 54.2° | 74.6° | 1.54" |
| Oct | 47.6° | 62.9° | 3.42" |
| Nov | 41.4° | 52° | 6.74" |
| Dec | 36.5° | 45.1° | 6.94" |
NOAA station data 2.31 miles from Portland.
Permits & Regulations in OR
Permit typically required
- Electrical contracting requires an electrical contractor license from the Oregon Building Codes Division and a CCB license
- Individual electricians hold state supervising or journeyman licenses
- Electrical permits are issued by the state or the local building department
License required: Oregon electrical contractor license plus CCB license
Sources: www.oregon.gov
Generator Installation FAQs for Portland
How much does a whole-house generator cost in Portland?
A whole-house standby generator in Portland typically runs $11650-$18640 installed, including the transfer switch, pad and gas hookup.
How many generator installers serve Portland?
We track 3 generator installation companies serving Portland.
Is generator installation in Portland more expensive than average?
Electrician labor in Portland runs about +16.5% versus the national average.
Do I need a permit for a generator in Portland, OR?
In OR, Electrical contracting requires an electrical contractor license from the Oregon Building Codes Division and a CCB license. Standby generators in Portland need an electrical permit and, for gas units, a gas permit.
What size generator does a Portland home need?
It depends on what must run in an outage; with summer highs near 80F, keeping central air on in Portland pushes most homes toward 18-24 kW.
Do generators work in Portland winters?
Standby units are built for it; with winter lows around 37F in Portland, ask about a cold-weather kit for the battery and oil.
How many quotes should I get for a generator in Portland?
Three; with 3 installers serving Portland, compare the kW size, transfer switch type and maintenance plan.
How long does generator installation take in Portland?
Installation is usually one or two days, but permits and equipment lead times in Portland can stretch the whole project to several weeks.
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