Home services in California
Explore home projects in California with practical guidance on contractor licensing, permits, insurance, and common home styles.
California homes at a glance
- Median home value
- $734,700
- U.S. median: $332,700
- Median home age
- 50 yrs
- Typical home built in 1976
- Extreme-weather days a year
- 50
- 46 days 90°F+ · 4 nights ≤32°F
Sources: Census ACS: values · year built · PRISM/NOAA
ACS 2020–2024 · Climate 2015–2024 · Home ages as of 2026.
About
Planning projects in California
California offers one of the most varied homeownership environments in the United States. Coastal salt air, marine fog, inland heat, mountain snow, desert sun, wildfire risk, drought, and seismic activity all shape the way homes are built and maintained. A home along the Pacific coast faces very different challenges than one in the Sierra Nevada, the Central Valley, or the southern deserts. Understanding how these environmental systems influence roofing, fire resistance, water efficiency, drainage, ventilation, and exterior materials helps homeowners make choices that support lasting performance.
Home services across California
Project planning rules
Contractor licensing in California
The Contractors State License Board (CSLB) licenses all contractors for jobs of $1,000 or more (raised from $500 in 2025). Key classifications:
- B: general building
- B-2: residential remodeling
- C-20: HVAC
- C-36: plumbing
- C-39: roofing
Rules vary by city and county. Confirm with your local building department.
Verify a license: CSLB Check a License
Insurance requirements
Every licensee posts a $25,000 bond. Workers' comp is required for any employer, and HVAC and roofing licensees must carry it even with no employees. The requirement for all licensees is delayed to January 1, 2028. LLC licensees must carry at least $1 million in liability insurance. There's no recovery fund.
Rules vary by city and county. Confirm with your local building department.
Permit rules
The 2025 California Residential Code (based on the 2024 IRC) has applied statewide since January 1, 2026, and local building departments issue permits. Home improvement contracts over $500 must be in writing. Down payments are capped at $1,000 or 10%, whichever is less. Homeowners have 3 business days to cancel, or 5 if they're 65 or older.
Rules vary by city and county. Confirm with your local building department.
Sources: AB 2622 bulletin · Bonds · Workers' comp · Contracts guide
Researched October 1, 2026 from official state sources.
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Architecture
Common home styles in California
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Articles
California home improvement guides
Read published project-planning articles.
Common questions about hiring a contractor
Before removing walls, have the proposed changes assessed for structural support and existing plumbing, electrical, and ventilation routes. Ask what earlier alterations or concealed conditions could change the scope once demolition begins. If the home was built before 1978, discuss lead-safe practices for work that disturbs painted surfaces. Resolve these questions before finalizing the layout, and have the estimate explain how unexpected findings will be documented and approved.
If your property is exposed to wildfire, consider how roofing, siding, windows, vents, and nearby decks work together to resist embers and heat. California’s home hardening guidance includes ember-resistant vents, ignition-resistant or noncombustible exterior materials, and dual-pane windows with at least one tempered pane. Ask which improvements address your home’s actual weak points and how they fit applicable local requirements. An exterior remodel is a useful opportunity to coordinate these details across the whole project.
Yes, particularly if an older home has not had its earthquake vulnerabilities assessed. Depending on the structure, improvements may involve anchoring the house to its foundation, bracing short walls beneath the floor, or strengthening a garage level that supports living space. Ask a qualified professional whether the planned remodel creates a practical opportunity to complete that work. The appropriate retrofit depends on the home’s construction and foundation; remodeling alone does not establish that it has been strengthened.