General Contractor in Whittier, CA

Before you hire a general contractor in Whittier, what should you check first?

Start with the age of the house, because Whittier's story is a story of layers. Pickering Land and Water Company bought a former ranch in 1887, reserved 20 acres for a college and named the Quaker colony for the poet John Greenleaf Whittier. The town incorporated on February 25, 1898 with 585 residents, and its lemons, oranges, walnuts and oil fields supported 14,822 people by 1930. Growth then came in a rush: 16,115 residents in 1940, 33,663 in 1960 and 72,863 in 1970, as tracts replaced groves. The Census Bureau's 2024 one year estimates count 31,200 housing units here. About 37.1 percent went up in the 1950s, 17.4 percent in the 1940s, 15.2 percent in the 1960s and 13.3 percent in 1939 or earlier, which puts 88.8 percent before 1980. Roughly 62.8 percent are detached single-family homes and 41.1 percent of households rent. So a kitchen remodel or bathroom remodel usually opens walls with original wiring and pipe, new flooring raises questions about old vinyl, termites and slab moisture, and a repaint of a pre-1978 house falls under federal lead-safe rules.

The approval path has a fixed order. The Community Development Department says Planning Services must evaluate a project before Building & Safety reviews plans, and its counter is open 7:30 a.m. to 4:00 p.m. Monday through Thursday and 8:00 a.m. to 4:00 p.m. on Friday. Many permits for a re-roof, plumbing, electrical, solar, a like-for-like bathroom or a window change are filed through the City's online portal. Since January 1, 2026 plan check follows the 2025 California codes with the 2023 County Fire Code. An issued permit expires if work has not started within 180 days, and permit-covered work runs 7:00 a.m. to 8:00 p.m. Monday through Saturday, never on Sundays or federal holidays. The code's exempt list names painting, tiling, carpeting, cabinets and counter tops, so cosmetic work can skip a permit. It also lists walls or fences up to 18 inches and detached wood decks up to 30 inches above grade, yet the City's fence page says a new fence needs a building permit, so treat that 18 inch line as a question for the counter and see the deck builder page before you plan a platform. This page quotes no fee amounts, because the City's fee sheets could not be read reliably.

Overlays then decide what is possible. Four historic districts sit around Uptown: Central Park with 45 properties, Hadley-Greenleaf with over 190, College Hills with 97 and Earlham with seven. In them, and on any landmark, a change to a building's appearance needs a certificate of appropriateness from the Historic Resources Commission or a waiver from its Secretary before any permit is issued, which touches a roof, windows and a paint scheme. Maintenance that changes no design, material or look is not blocked, and the City tells owners of houses built before 1941 to call Planning first. Land on the 1979 hillside maps is the H-R Hillside Residential zone: a hillside development plan and a soils and geologic report come before any building permit, density is capped at 3 units per net acre, and cuts and fills stop at 20 feet. We did not open those maps, so we name no street as H-R. That zone shapes an ADU, a room addition and any concrete work that moves soil. Every roof covering in the city must be Class A, and most metal roofing is banned on houses.

Hazards come last, and they come with caveats. CAL FIRE's updated Local Responsibility Area map reached Whittier on March 24, 2025, and we could not confirm that the City Council has adopted it by ordinance, so check the City's fire severity zone page and ask. The hazard plan counts 2,373 of 23,414 parcels as Very High, mostly north of Whittier Boulevard. A State Alquist-Priolo fault zone covers part of the Whittier fault on the east side, and the 1987 Whittier Narrows earthquake damaged Uptown's pre-1930 buildings hardest. Every hazard figure we quote from County mapping is a count of points in a 413-point sample, not a share of the city's area. The Whittier City Yard gauge records 13.32 inches of rain a year, 79 percent of it from December through March, and Fullerton Airport, about 7 miles away and lower than most of town, logs 39 days a year at 90 degrees F or above. MDG Builders is the contractor of record, CSLB #1040337: we write the scope, carry it through Planning and plan check, book licensed specialty subcontractors and walk the result with you. Our subcontractor explainer describes that split, and the nearest hubs are Norwalk and Downey.