Greenspire Construction
Greenspire Construction appears in public records for 62 home solar installations from 2019 to 2022 in California. It mostly installs systems owned by leasing or PPA companies.
- Installations on record
- 620 in the last 3 years
- Years active in records
- 42019–2022
- Price vs. state average
- —not enough priced records
- Leased or PPA systems
- 79%of recent installs
- With a battery
- 0%recent installs
- Typical system
- 6 kWmedian size
Equipment they use most
Microinverters on 36% and optimizers on 42% of recent systems. Equipment guide
Where they install
| State | Installations | License lookup |
|---|---|---|
| California | 62 | Check license |
California contractor license number in state records: 1018241.0. Verify with the CSLB.
What the numbers suggest
- It mostly installs systems owned by leasing or PPA companies. If you want to own your system, ask for a cash or loan quote and compare it with a lease carefully.
- A shorter track record (4 years in records) means more uncertainty about long-term warranty support. Ask who backs the workmanship warranty if the company closes.
Before you sign with any installer
- Verify the contractor license and look for complaints with your state board and attorney general.
- Get at least three quotes and compare them in our quote comparison tool.
- Ask who does the installation (their own crews or subcontractors) and who backs the workmanship warranty.
- Read our solar sales red flags.
Other active installers in California
- Sunrun 393,217 installs
- Tesla Energy 342,090 installs
- SunPower 145,397 installs
- Freedom Forever 65,288 installs
- Bright OPS 15,565 installs
- Citadel Roofing And Solar 19,239 installs
- GAF Energy 9,795 installs
- Sunnova 19,138 installs
Data: California DGStats (through Aug 2026). Installer names are normalized from public records and may combine related business names. We don't accept payment from installers. Something wrong? Request a correction.