Santa Rosa Multifamily Exterior Siding & Windows Renovation

Property managers, HOA boards, and apartment owners in Santa Rosa face exterior decisions that single-family homeowners don't. You manage dozens of units. You answer to residents who still live in the building while the work happens. You coordinate a board vote or an ownership group. And you work in a city where wildfire has reshaped how exteriors are specified. Bay Area Siding Company is a Marin-based siding and window contractor that re-sides and replaces windows on multifamily, condominium, and light commercial buildings across Sonoma County. We plan the work around your residents, your reserve schedule, and your building's actual condition.

Request a bid or schedule a walk-through: call (415) 619-5167, or start with our siding replacement overview.

What we take on for Santa Rosa properties

• Full or phased re-siding. We remove failing cladding on apartment buildings, townhome clusters, and condo complexes and replace it with fiber cement, engineered wood, vinyl, or wood, depending on the building and budget.
• Window replacement across many units. We handle window-by-window or building-wide replacement, coordinated with the siding scope or done as its own project.
• Envelope repair behind the cladding. This covers sheathing correction where damage turns up, new water-resistive barrier (WRB), and flashing at windows, doors, decks, and penetrations.
• Trim, fascia, and finish. Trim, fascia, and paint are completed as part of the scope, so the buildings look uniform.

On a typical re-side, we remove the old siding down to the sheathing so the WRB and flashing can be inspected and rebuilt. The framing is exposed only where the sheathing itself has failed and has to come off. That is a larger scope, and we flag it and price it separately rather than folding it in quietly.

Planning around residents who stay in place

Most Santa Rosa multifamily work happens with tenants or owners at home. That shapes the whole job:

• Building-by-building or elevation-by-elevation phasing. Only one section of the property is under work at a time.
• Advance notice windows. You can pass these along to residents, especially for window days that require interior access.
• Defined daily work areas, staging, and cleanup. Parking lots, walkways, and landscaping stay usable.
• Openings closed out the same day. When windows come out, the replacements go in before the crew leaves.

We work out the phasing plan with your manager or board before the job starts, so the schedule you share with residents matches what actually happens on site.

The fire-area question for Santa Rosa buildings

The October 2017 Tubbs Fire destroyed roughly 2,900 homes in Santa Rosa, including much of Coffey Park and large parts of Fountaingrove. Rebuilding and hardening have continued ever since. The city designates a Wildland-Urban Interface (WUI) Fire Area, and Fire Hazard Severity Zone maps have been updated in recent years. Some properties that weren't mapped before now are.

For boards and owners, the practical question is what applies to your parcel. Chapter 7A of the California Building Code sets requirements for specific exterior assemblies in designated areas, including:

• exterior wall coverings
• vents
• eaves
• glazing

It does not impose one blanket rule on the whole building. Whether re-siding or window work triggers current Chapter 7A standards depends on:

• the property's mapping
• the scope of work
• the products chosen

Multifamily buildings add another layer. Depending on construction type and distance to property lines or other buildings, some exterior walls may be part of fire-resistance-rated assemblies. Any replacement cladding has to keep that rating intact.

We confirm the specifics with the City of Santa Rosa before we write the specification, not after. Noncombustible cladding such as fiber cement is a common choice for fire-conscious properties. Dual-pane windows with at least one tempered pane are the typical Chapter 7A glazing approach where it applies. (For insurance questions, talk to your carrier or broker. We don't advise on coverage.)

Choosing materials at portfolio scale

Material decisions for a multifamily property weigh first cost against decades of maintenance across every elevation you own.

| Material | Where it tends to fit | |---|---| | Fiber cement / James Hardie | Long service life, noncombustible, holds paint well; heavier and labor-intensive to install. Hardie's HZ10 line is formulated for California conditions and carries a transferable 30-year non-prorated substrate limited warranty when installed to spec. | | LP SmartSide | Engineered wood with a real-wood texture; lighter and impact-resistant; needs periodic repainting. | | Vinyl | Lowest first cost and no repainting; fewer dark colors on some lines, and very high heat can affect some profiles. | | Wood | Suits character buildings; highest maintenance and combustible, a real consideration on fire-mapped parcels. |

Santa Rosa's hot, high-UV inland summers are hard on paint and on south- and west-facing elevations. That makes finish durability and repaint cycles worth building into your reserve study.

For windows, we install Anlin, Milgard, Andersen, Marvin, and Pella. Title 24 energy limits for replacement windows vary by climate zone and code cycle, so we confirm the current numbers at permit time. Solar-heat-gain control matters on sun-facing units. Compare options on our window replacement hub.

HOA consistency and board approvals

Condo and townhome associations usually need a single, consistent exterior: matching profile, color, trim details, and window style throughout the community. We help boards narrow material and color options, provide the specifications the architectural committee needs, and set up a scope that can be bid and phased across buildings or fiscal years.

Some associations and apartment owners are also working through California's required inspections of exterior elevated elements, meaning balconies, decks, and walkways (SB 721 for apartment buildings, SB 326 for condo associations). Those inspections are done by qualified inspectors or engineers. When their findings involve the siding, flashing, or WRB around decks and balconies, we can coordinate the cladding and flashing side of the repair with the engineer's scope.

Permits and process in brief

Siding and window replacement in Santa Rosa goes through the City of Santa Rosa building permit process. The city also maintains a specific window replacement policy. We handle permits, energy documentation, and inspections.

The job runs in this order:

1. Walk-through and condition review.
2. Written scope and phasing plan.
3. Board or owner approval.
4. Permit.
5. Phased tear-off, envelope repair, and installation.
6. Punch list and closeout with your manager.

What drives the bid

We don't quote prices sight unseen. Multifamily bids mainly depend on:

• the number of buildings, stories, and elevations
• access and equipment (lifts, scaffolding, tight setbacks)
• the material and profile chosen
• how much hidden sheathing damage turns up
• the window count and whether installs are retrofit or full-frame
• fire-area or rated-assembly requirements
• how finely the work must be phased around occupancy

Frequently asked questions

Can residents stay in their units during a re-side? In most cases, yes. We phase the work by building or elevation, schedule interior access for window days in advance, and close out openings daily.

Does Chapter 7A apply to our whole Santa Rosa complex? Not automatically. It depends on whether the parcel is in the city's WUI Fire Area or a mapped fire hazard zone, and on which assemblies the project touches. We verify this with the City of Santa Rosa before specifying materials.

Can the project be split across budget years? Yes. We can structure the scope so buildings or elevations are completed in phases that line up with your reserve funding, while keeping the materials and details consistent.

Do you work with our property manager or only the board? Either. We typically keep a single point of contact for scheduling and resident communication, and provide documentation the board needs for approvals.

Get your Santa Rosa property scoped

Whether it's one aging apartment building or a multi-building HOA, we'll walk the site and put together a phased scope and bid. See past exterior work in our project gallery, explore coverage across the North Bay & Wine Country, and review our Santa Rosa siding replacement, James Hardie siding, and window replacement pages.

Request a bid: call (415) 619-5167 or email info@bayareasidingco.com.