Castro Valley has no city government: it is an unincorporated community run by Alameda County, and its houses span the valley floor that replaced 1940s chicken ranches, about 200 hillside Eichlers on Greenridge, and Five Canyons, built 1999 to 2004. Common jobs include Eichler glass and beams, fences on sloped lots, and drywall.
The roughly 200 Eichlers on Greenridge Road and Highwood Road were built in the early to mid 1960s from designs by Jones & Emmons and Claude Oakland, with atriums and floor-to-ceiling glass. On houses this age, sliding glass doors grind in worn tracks, rollers flatten, handles break, and the seals around fixed panes dry out. Cleaning and truing tracks, fitting new rollers and pulls, and resealing glazing stops are handyman jobs. Swapping large single-pane panels for insulated glass is work for a glass shop. More about door and window repair
Exposed beams and trim in post-and-beam houses
In a Greenridge Eichler the beams are the finish, not framing hidden behind drywall. Old roof-leak stains, dents and mismatched replacement trim show plainly against them. Replacing a damaged fascia board or trim piece, refinishing a stained beam face, or building shelving that fastens to posts instead of a thin panel wall takes someone who works with the existing grid. A beam that has sagged, split through or rotted at a post is a structural question for a licensed contractor. More about carpentry, shelves and trim
Fences and gates on canyon lots
Five Canyons takes its name from the ridge-and-valley land beside it, and houses there and in the hills around Crow Canyon Road often have fences running downhill or along open space. Posts set in a slope lean as soil and water move, and gates drift out of square until they drag. Resetting posts, replacing rotted boards and rails, and rehanging gates are handyman work. In Five Canyons, check the association's rules on fence style before replacing a run that neighbors can see. More about fence, deck and gate repair
Cracks and nail pops in Five Canyons two-stories
Five Canyons was built between 1999 and 2004 as two-story houses and townhomes with large family rooms. Houses of that era and layout commonly show nail pops, hairline cracks at the corners of windows and doors, and seams opening along tall stairwell walls as framing dries and settles. Resetting popped fasteners, taping and feathering cracks, and matching the wall texture before paint is routine work, and the high stairwell walls are easier with someone who brings the right ladder. More about drywall and plaster repair
How the houses here are built
Post-war houses on the valley floor around Castro Valley Boulevard, where the community was known for chicken ranches in the 1940s and 1950s; Joseph Eichler's Greenridge tract of about 200 homes along a ridge in the hills; and Five Canyons, two-story houses and townhomes under one large homeowners association.
The Greenridge Eichlers are post-and-beam houses with floor-to-ceiling glass and atriums, so there is little ordinary wall and the exposed beams show every repair. The valley-floor houses and Five Canyons are conventional wood frame with drywall.
Dry summers followed by winter rain hit hardest on the sloped canyon and ridge lots, where fence posts, gates and downspouts deal with water running downhill.
Good to know before a job in Castro Valley
Permits come from the county, not a city
Castro Valley is a census-designated place with no city council. A seven-member Municipal Advisory Council advises the Alameda County Board of Supervisors, the county's Community Development Agency handles planning, and building permits and inspections go through the county Public Works Agency. So if a project needs a permit, such as a new circuit or structural change, the application goes to the county, not to Hayward or San Leandro, even though a Castro Valley address sits right beside both.
Living next to Five Canyons Open Space
Five Canyons Open Space is about 300 acres of ridges and valleys with five miles of trails, opened in 1998 and managed jointly by the East Bay Regional Park District, Alameda County Public Works and the Hayward Area Recreation and Park District, with neighboring homeowners associations as partners. The Five Canyons association covers more than 900 units. For fence, gate or exterior work along the open-space edge, confirm with the association which side of the line is yours before the job starts.
How a request works
Describe the job
A sentence and a photo or two is enough. It takes about a minute.
A local handyman gets in touch
By call or text, to ask what the photos don't show and give you a price.
You decide
Agree a time and price with the handyman directly, or don't. Requesting costs nothing.
Questions from Castro Valley homeowners
Castro Valley isn't a city. Who handles permits if my repair needs one?
Alameda County. Castro Valley is unincorporated, so planning goes through the county's Community Development Agency and building permits and inspections through the county Public Works Agency. Patching drywall or replacing fence boards is handyman work, while anything structural or a new electrical circuit is for a licensed contractor, who deals with the county permit.
Can a handyman work on the glass walls and beams of a Greenridge Eichler?
Yes, within limits. Adjusting and re-rolling sliders, replacing handles, resealing glazing, patching or refinishing beam faces and replacing trim are handyman jobs. Replacing large glass panels is glass-shop work, and a sagging or rotted beam needs a licensed contractor. Mention that the house is an Eichler when you describe the job, since the construction is unlike a standard tract house.
I live in Five Canyons. Do I need association approval before a fence repair?
Check the association's rules first. Five Canyons is a planned community of more than 900 units, and associations like it typically set standards for fences and anything visible from the street. Replacing boards to match what is already there is simpler than changing height, style or color, but the association's documents are what decide.
My backyard fence borders open space. Who fixes it?
Start by finding out whose fence it is. Five Canyons Open Space is managed by several public agencies together with the neighboring associations, so the fence along it may belong to you, your association or a park agency. Once ownership is clear, resetting posts and replacing boards on a fence you own is ordinary handyman work.
Checked against these public sources in September 2026. Rules change: confirm anything permit-related with the city or town of Castro Valley before work starts.
