Cornerstone Construction and RetrofittingGeneral contractor in Gardena, CA
Cornerstone Construction and Retrofitting is a general contractor in Gardena, CA.
Gardena, CA0 paid placements in any rankingHow we rank
Key facts
| Phone | (818) 349-6940 |
|---|
Trades
Each trade shows the evidence we matched it on.
- General Contractingmain tradeGoogle main category
Service area
Serves Gardena and 12 towns within 25 miles: San Dimas, La Verne, Glendora, Charter Oak, Claremont, Citrus, Azusa, Pomona, Covina, Montclair, Upland and Diamond Bar.
Typical general contracting prices
| Job | Low | Typical | High |
|---|---|---|---|
| Kitchen remodelPer project: typical range of customer-reported remodels (about $75 to $250 per sq ft). US national range × 1.04 Pacific factor (2025 Cost vs. Value Report) | $15,240 | $28,190 | $43,470 |
| Bathroom remodelPer bathroom: typical range of customer-reported remodels. US national range × 1.06 Pacific factor (2025 Cost vs. Value Report) | $7,050 | $12,880 | $18,720 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
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