Most exterior carpentry work gets treated as an afterthought—the trim that goes on after the siding, the stairs added when the deck is almost done, the pergola bolted on a year later when the homeowner realizes the deck needs shade. After 12 years working on Rhode Island homes, we have seen the difference between carpentry that was designed into a project from the start and carpentry that was added on top of someone else’s work.
Cornerstone Decks & Siding handles exterior carpentry as part of complete exterior projects and as standalone work. We build pergolas, custom stairs, exterior trim, fascia, soffits, railings, and decorative woodwork for homeowners across Rhode Island who want the finish quality to match the rest of the project.
Exterior carpentry covers everything that is not the structural frame of the house and not the cladding—it is the detail layer that determines whether a home’s exterior looks finished or unfinished, intentional or assembled from leftover decisions.
In our work across Rhode Island, exterior carpentry falls into four categories that homeowners ask about most:
An attached pergola—one that connects to the house via a ledger board—requires a building permit in every Rhode Island municipality we work in. It also requires proper ledger attachment to the house structure, flashing where the ledger meets the wall, and careful attention to how water drains away from that connection point. A poorly flashed ledger connection is one of the most common causes of rot in the band joist area of Rhode Island homes—we see it constantly on pergolas and decks that were attached without proper flashing.
Freestanding pergolas in most Rhode Island municipalities do not require a permit if they are under a certain square footage, but that threshold varies by town. We verify with your municipality before any design work starts.
Pressure-treated lumber is the most common material for pergola framing and performs adequately for the structural members—posts, beams, and rafters—when properly sealed and maintained. For the finish-visible elements like decorative rafter tails and fascia boards, we use cellular PVC or clear cedar depending on the homeowner’s preference and budget, because these surfaces are what you see from the yard and from the dining table under the pergola.
For coastal properties within a few miles of Narragansett Bay, we specify stainless steel or hot-dipped galvanized hardware throughout. Standard galvanized joist hangers and bolts show rust staining within two to three seasons in salt air environments—stainless costs more upfront but does not require replacement or cause the staining that runs down the posts and onto the decking below.
Exterior trim is not glamorous work. Nobody calls us to say they want new fascia boards—they call because the fascia is rotting and they can see daylight through it, or because their gutters are pulling away from the house because the fascia behind them has gone soft.
Rhode Island’s trim failure patterns are predictable:
Rhode Island has an extraordinary density of historic residential architecture—Federal-style homes in East Greenwich, Greek Revival and Italianate houses in Providence’s College Hill, 18th-century Colonials in Bristol, and Victorian-era homes throughout Washington County. The exterior trim profiles on these homes are not standard contemporary profiles, and replacing them requires either custom millwork or careful sourcing of the traditional profiles that match.
We work with local millwork suppliers who can match original profiles in both wood and PVC—ogee fascia, beaded corner boards, cyma recta window casing—the profiles that define the character of these homes and that a historic district commission will notice immediately if they are replaced with contemporary ranch house trim.
For properties in East Greenwich’s historic district, Providence’s College Hill Historic District, and Bristol’s historic waterfront, we prepare the documentation the commission requires and can attend commission meetings if the project requires their approval. Exterior carpentry on contributing structures in these districts is subject to the same commission review as siding and deck additions.
Exterior carpentry pricing depends entirely on scope, which makes ranges almost meaningless without more context—but here is what we can say about the projects we do most often:
Pergola construction for a standard 12×16 – foot attached pergola over an existing deck runs $8,000 to $14,000 depending on material choices, rafter tail complexity, and whether a polycarbonate or louvered roof panel system is included. A freestanding pergola of the same footprint is similar in cost, with slightly more for the additional footings.
Stair replacement on an existing deck—removing old stairs and building new code-compliant stairs with composite treads and aluminum or cable railing—typically runs $3,500 to $7,500 depending on the number of risers, railing type, and footing conditions.
Fascia and soffit replacement on a standard 2,000-square-foot Rhode Island home with deteriorated original wood trim runs $4,000 to $9,000 depending on the extent of the rot behind the existing material and whether gutter reinstallation is included.
Complete exterior trim replacement, including fascia, soffits, corner boards, window casing, and frieze on a full house, typically runs $12,000 to $22,000. These projects almost always uncover additional repair work behind the existing trim that was invisible before removal.
We provide itemized written estimates that separate carpentry labor, materials, and any remediation work so you know exactly what each component costs.
Our focus is exterior work—decks, siding, roofing, and exterior carpentry. For interior carpentry projects, we can refer you to trusted contractors we have worked alongside on larger projects.
