Re-siding or re-glazing a multi-building property is a different job from a single-family re-side, and it is run differently. Budgets are set by a board or an owner and have to hold across many units; work happens around residents who are home; and in a Lamorinda community, the exterior usually has to satisfy an HOA's architectural standards as well as the building code. Bay Area Siding Company is a Larkspur-based siding and window contractor, and we take on multifamily and HOA exterior renovation across Moraga — apartment communities, condominium and townhome associations, and small portfolios — for the people responsible for them: property managers, HOA boards, and apartment owners.

Planning a building envelope project? Request a bid or call (415) 619-5167 to scope it.

What we take on

• Portfolio and whole-community re-siding — tear-off and replacement across multiple buildings, sequenced so the property is never all torn open at once.
• Community-wide window replacement — standardized units and glass packages across many openings, with retrofit or full-frame chosen per condition.
• Combined envelope projects — siding and windows together, so flashing and the water-resistive barrier are detailed as one continuous system rather than two disconnected trades.
• Architectural consistency — matching profile, color, and detailing across buildings so an association keeps a coherent look, and phased work does not leave the property mismatched for a season.

Working around residents

The hardest part of a tenant-occupied exterior project is not the siding — it is doing it without turning the property into a construction zone residents can't live with. We plan around that: building-by-building or wing-by-wing phasing, staging and access laid out to keep parking and walkways usable, notice to residents ahead of work on their unit, and a sequence that keeps each home weather-tight at the end of every day rather than leaving walls open. For a board or a manager, the value is a predictable schedule and a property that stays occupiable throughout.

Moraga's local realities on a multi-unit scale

Two things that are footnotes on a single house become planning items across a community here.

Fire compliance across many units. Moraga sits in the Moraga-Orinda Fire District, and hill and open-space-adjacent parcels fall within the fire hazard severity zones on the updated 2025 Cal Fire maps. On a property carrying a fire-hazard designation, California Building Code Chapter 7A can govern regulated exterior assemblies and openings — which, across dozens of units, makes the material and glazing decision a portfolio-level one, often pointing to noncombustible fiber cement and appropriate glazing. Whether and how Chapter 7A applies depends on the parcel and the scope, so we confirm it with the Town and the fire district as part of scoping rather than assume it.

Permitting and inspection. The Town of Moraga runs building-permit review, inspection, and code enforcement through the Contra Costa County Department of Conservation and Development, with Town Planning or Engineering sign-off on most exterior work — and on an HOA-governed community, association architectural review typically runs in parallel. We coordinate the building permits and inspection sequence and work alongside the board's review process.

Budgets and the long view

Boards and owners are weighing capital cost against years of deferred maintenance. Re-siding a community in noncombustible or low-maintenance material takes an ongoing paint-and-repair line item off the reserve study; standardizing windows cuts the trickle of one-off failures and improves envelope performance across the property. Cost drivers at this scale are unit and building count, the number of stories and the amount of trim, how much substrate repair the tear-off reveals across older buildings, the material and glass specifications, phasing complexity, and site access. We price each property after walking it, and can structure a scope that fits a reserve schedule.

FAQ

Can you phase the work so our residents aren't displaced? Yes — that is standard on tenant-occupied and owner-occupied communities. We sequence building-by-building or wing-by-wing, keep access and parking usable, notify residents before work reaches their unit, and leave every home weather-tight at the end of each day.

Will the exterior meet our HOA's architectural standards? That is part of the scope. We match profile, color, and detailing across buildings for a consistent look and work alongside the association's architectural review while we handle the Town and County permitting.

How does the fire zone affect a community-wide project in Moraga? On a property with a fire-hazard designation, Chapter 7A can govern regulated assemblies and openings across every affected unit, which usually points toward noncombustible materials and appropriate glazing. Applicability depends on the parcel and scope, which we confirm with the Town and the Moraga-Orinda Fire District before speccing.

Who do you work with — the board, the manager, or the owner? All three. We are used to reporting to an HOA board, coordinating day-to-day with a property manager, or working directly for an apartment owner, and we scope the communication to match.

Start your Moraga multifamily project

Call (415) 619-5167 or request a bid. We serve Moraga and the wider Contra Costa area — see completed exteriors in our project gallery. For the material and window options behind a community spec, see siding replacement and window replacement.