Brentwood Siding & Windows Replacement

Most homes in Brentwood aren't a century old — they went up during the city's big residential run-up in the late 1990s and 2000s, when the old cherry and corn ground east of Mount Diablo filled in with tract and master-planned neighborhoods. That changes the siding conversation. Instead of unwinding decades of add-ons, the typical Brentwood re-side is about retiring cladding that was installed to a builder's budget and has now baked through fifteen or twenty of the Delta's brutal summers. Bay Area Siding Company is a Larkspur-based (Marin) siding and window contractor that handles the full job for East Contra Costa homeowners: tear-off, substrate and weather-barrier inspection, flashing, and installation to spec.

Want to talk it through? Request an estimate or call (415) 619-5167.

Re-side, or is another coat of paint enough?

On a newer subdivision home, the deciding question is usually whether the cladding is simply tired-looking or actually failing. Paint buys you time; it doesn't fix a wall. Lean toward full replacement when you see:

• Fiber-cement or hardboard panels that are cracking, delaminating at the edges, or swelling along the bottom courses
• Original T1-11 or engineered-wood lap that's cupping, checking, or soft where sprinklers and splashback hit it
• Caulk joints and butt seams that have opened up and keep reopening after you re-seal them
• Chalky, faded south- and west-facing walls where paint no longer wants to bond
• Any staining, soft trim, or musty smell that points to water getting behind the cladding

If you're mostly chasing color and the substrate is sound, a repaint may be the smarter spend — we'll tell you honestly. When the material itself is at the end of its life, replacing it is what actually protects the wall.

Why we take the old cladding off rather than side over it

Furring new siding over the old layer is tempting on a large tract elevation, but it hides the part of the wall that matters. Only a tear-off lets us pull the cladding back to the sheathing/substrate, confirm the water-resistive barrier (WRB) is intact, and correct flashing at windows, doors, and penetrations that may have been rushed during the original build. Siding over the top adds weight, can trap moisture against the wall, and buries any problem for the next owner to find. A clean tear-off costs more up front and gives you a wall that's right from the sheathing out.

Picking a material that fits the heat — and the HOA

Two things drive material choice in Brentwood: the summer sun and, on a lot of these homes, an HOA with an approved palette. Here's where each option lands:

• James Hardie fiber cement — noncombustible fiber cement with a factory finish that holds color well under high UV; a common re-side pick here (see our Brentwood James Hardie page)
• Fiber cement — the wider category, including other manufacturers
• LP SmartSide — engineered wood, a lighter-weight lap option
• Vinyl siding — lower-maintenance where it suits the home and the neighborhood
• CertainTeed and wood — where the look calls for them

Because Brentwood summers run hot and dry — July highs commonly sit in the low 90s, and the city's rain-shadow position keeps things arid — fade resistance and dimensional stability under UV matter more here than moisture-driven rot does in the fog belt. If your neighborhood has a homeowners' association, bring the approved color and profile list to the consultation; matching it up front keeps the project on schedule.

Permits and the local details

Exterior re-siding is permitted work. The City of Brentwood Building Inspection Division (part of Community Development) administers building permits and enforces the California Building, Energy, and related codes; its "Do I Need a Building Permit" and additions/alterations handouts cover residential exterior projects. We pull and manage the permit as part of the job, and we confirm the current scope with the division rather than guessing.

One point on fire zones, because it comes up: Brentwood sits on the flat alluvial plain of the Sacramento–San Joaquin Delta, and the large majority of its residential subdivisions are not in a fire-hazard zone. That said, Cal Fire's 2025 maps do identify limited very high fire hazard severity areas associated with a number of Contra Costa cities, Brentwood included — generally toward open space and the county's edges, not the flatland tracts. If your parcel is one of the exceptions, California Building Code Chapter 7A can affect the exterior wall assembly and material choice; we check the designation before speccing rather than assume it either way.

How the job runs: we start with a walkthrough of your existing walls and goals, take exact measurements and write a scope, permit the work, then tear off the old cladding and inspect the sheathing and WRB. We correct any flashing and substrate issues we find, install the new siding to the manufacturer's specifications, and finish with trim, cleanup, and a walkthrough with you. Timeline depends on the home's size, the material, and what tear-off uncovers.

What moves the price

There's no honest online price for a re-side. The real drivers are the square footage and number of stories, the material and finish you choose, how much substrate or flashing repair we find once the old cladding is off, window and trim integration if you're doing those too, and any HOA or fire-zone requirements that shape the material. We price it after we've actually seen the walls.

FAQ

Do I need a permit to replace siding in Brentwood? Yes — re-siding is a permitted alteration handled through the City of Brentwood Building Inspection Division. We pull and manage it, and confirm the exact scope and any energy-code items with the city.

My house is only fifteen or twenty years old. Isn't it too soon to re-side? Not necessarily. Builder-grade cladding installed during Brentwood's 2000s growth was chosen for cost, and after years of intense summer sun the finish and, sometimes, the panels themselves reach the end of their service life on that timeline. We'll tell you whether a repaint or a full replacement is the right call for your walls.

Will new siding meet my HOA's requirements? It can, as long as the material, profile, and color are on the association's approved list. Bring that list to the consultation and we'll spec to it so approval doesn't stall the project.

Should I repair, repaint, or fully replace? Repair or repaint makes sense when the substrate is sound and the issue is cosmetic. Full replacement is the better long-term move when the cladding is cracking, swelling, or failing to hold paint — because that's the only way to inspect and correct what's behind it.

Get your Brentwood re-side moving

Call (415) 619-5167 or request an estimate. We'll look at your walls, talk materials and HOA colors, and lay out the process. You can browse finished work in our project gallery, see the wider Contra Costa service area, or pair the job with window replacement in Brentwood.