Southwestern Solar SystemsSolar installer in El Cajon, CA
Southwestern Solar Systems is a solar installer at 9302 Bond Ave, El Cajon, CA 92021. Open Monday to Friday.
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Key facts
| Address | 9302 Bond Ave, El Cajon, CA 92021Get directions |
|---|---|
| Phone | (888) 319-2188 |
| Website | southwesternsolarsystems.com |
| Hours | Monday to Friday: 7 AM – 4 PM |
Trades
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- Solarmain tradeGoogle main category
Service area
Serves El Cajon and 11 towns within 40 miles: Lakeside, Winter Gardens, Bostonia, Eucalyptus Hills, Santee, Alpine, Rancho San Diego, Casa de Oro-Mount Helix, Jamul, Spring Valley and La Mesa.
Opening hours
| Day | Hours |
|---|---|
| Monday | 7 AM – 4 PM |
| Tuesday | 7 AM – 4 PM |
| Wednesday | 7 AM – 4 PM |
| Thursday | 7 AM – 4 PM |
| Friday | 7 AM – 4 PM |
| Saturday | Closed |
| Sunday | Closed |
- Open evenings — no
- Open Saturdays — no
- Open Sundays — no
Typical solar installation prices
| Job | Low | Typical | High |
|---|---|---|---|
| Solar panel installationPer system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.08 Pacific factor (2025 Cost vs. Value Report) | $29,770 | $33,680 | $36,640 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
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