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TimberTech® Gold PRO Contractor
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Building Since 2012
Custom decks, porches, and outdoor living spaces for homeowners in New Haven and the surrounding shoreline towns, including Hamden, East Haven, West Haven, Branford, and North Haven.
New Haven runs from the tideline to the top of West Rock inside one city. A deck on the shoreline and a deck up against the ridge are two different builds, and one of them may not get a building permit until the coastal review clears.
Recent projects for homeowners across Worcester County.
Connecticut sets its frost line at 42 inches and does not let towns adopt a shallower standard, so every footing carrying deck load bears at that depth. What varies enormously in New Haven is what the footing lands on, because few Connecticut cities cover this much ground vertically. CT DEEP's surficial geology mapping of the New Haven and Woodmont quadrangles records elevations running from sea level at the Long Island Sound shoreline to roughly 570 feet at the summit of West Rock Ridge, all inside the same municipality. Till covers much of the area, but the same mapping notes that over many of the ridges and hills it is thin or absent entirely. Up against East Rock or West Rock, the trap rock is close to the surface and a footing may find ledge well before 42 inches. Down toward the harbor and the tidal flats the picture inverts, with softer reworked sediment and a water table close enough to matter. Two projects three miles apart in this city can require completely different foundation approaches.
The coastal layer is what makes New Haven procedurally different from anywhere inland. Under the Connecticut Coastal Management Act, any structure located fully or partially within the coastal boundary is subject to coastal site plan review, and the statute is direct about the consequence: a municipality may not issue a building permit or certificate of occupancy for such a structure without written certification that it has been reviewed and approved, or that it qualifies as an exempt activity. The Act allows municipalities to exempt certain minor activities, but only where those exemptions have been formally adopted into the town's own zoning regulations, which means the answer differs town to town along this shoreline. The Act itself sets no universal setback from the water, though individual towns do. The practical effect for a homeowner is that on a coastal-boundary property the building permit is not the first approval in the sequence, it is the last one, and the coastal review governs the timeline.
Then exposure. Connecticut's statewide design values put ground snow load at 30 pounds per square foot with a winter design temperature of 7 degrees and severe weathering, but wind is handled separately and the shoreline does not behave like the interior. A deck sitting open to the Sound takes wind loading and salt-laden air that an inland deck never sees. That shows up less in the framing and more in the hardware: connectors, fasteners, and railing components in a coastal setting need corrosion resistance specified deliberately rather than defaulted to whatever is standard. Salt air will find an under-specified fastener years before it finds a joist.
Deck, porch, and outdoor living construction for New Haven and the surrounding shoreline towns.
Custom decks in wood, composite, and PVC, designed around your home's grade, exposure, and how you actually use the yard.
Trex and TimberTech composite surfaces that hold up to sun, moisture, and coastal air without a refinishing cycle.
Structural plans and detailing, including the drawings a coastal site plan review will require where a property sits inside the coastal boundary.
Design consultation, 3D rendering, permitting, footings, framing, and construction handled end to end.
Wood, composite, aluminum, glass, and cable systems, with hardware specified for the exposure the deck actually sits in.
Roofed outdoor space built with posts and footings sized for roof load on top of wind and snow load.
Screened space that extends the season on both ends.
Structural assessment and repair for decks showing corrosion at the connections, ledger rot, or footing movement.
Gutter-and-channel systems that turn the space beneath a raised deck into dry, usable outdoor living area.
Decks and rooftop structures for Worcester businesses and multi-family properties, built to commercial standards.
Hemlock is a second-generation carpentry business. The owner started under another contractor in his late teens, went into business with his father, and over time narrowed the company from general contracting down to exteriors and then to decks, porches, and outdoor living. The company has been building since 2012. A design and plastics background sits behind that, including work with extrusion, the process that produces the composite boards most of these decks are built from. Understanding a material from the manufacturing side is uncommon in this trade and it shows up in how things get specified, which matters more than usual in a coastal setting.
Trex's highest installer tier
handling structural planning and permit drawings
so you see the build before it starts
Warranty. Materials are covered by the manufacturer's warranty, which runs with the product and is issued by Trex, TimberTech, or whichever brand is specified. Workmanship is covered separately by us: one year on base-level materials and three years on premium materials. Those are two different things and we keep them described separately so there is no confusion about who stands behind what.
We walk the property, look at grade, drainage, and exposure, and establish early whether any part of the property falls inside the coastal boundary. Near the ridges we also want to know how close the rock sits to the surface before the footing plan gets fixed.
You see the deck before anything is built. Our in-house engineer produces the structural detail at the same time, so the design and the framing plan develop together.
If the property sits fully or partially within the coastal boundary, coastal site plan review comes first. The state does not allow a town to issue a building permit or certificate of occupancy for a structure in the coastal boundary without written certification that the project has been reviewed and approved, or that it falls under an exemption the town has formally adopted into its own zoning regulations. Because those exemptions vary between shoreline towns, the same deck can be routine in one town and a full review in the next. Zoning review and the building permit follow.
Footings go in below frost depth or onto sound rock, framing follows the approved drawings, hardware gets specified for the exposure, and we finish with a walkthrough.
Concrete will not cure properly below 40 degrees, so footing work runs from spring through late fall. On a coastal-boundary property, design and filing over the winter is worth more than it is inland, because the coastal review is the step with the least predictable timeline.
Serving New Haven and the surrounding towns.
If the property sits fully or partially within the coastal boundary, yes. Connecticut’s Coastal Management Act requires coastal site plan review, and the state prohibits a municipality from issuing a building permit or certificate of occupancy for a structure in that boundary without written certification that the project has been reviewed and approved or is exempt. Towns can adopt exemptions for minor activities, but only if those exemptions are written into the town’s own zoning regulations, so the answer varies from one shoreline town to the next.
No, and that is the part that surprises people. The coastal boundary is a defined line rather than a fixed distance from the water, and properties that do not feel like waterfront can still fall inside it. It is worth confirming at the start of a project rather than discovering it when the building permit is refused.
42 inches below undisturbed grade, the Connecticut frost line, which applies statewide with no local exceptions. The exception in the code is the footing at the grade-level bottom of a stair or ramp, which only needs 12 inches because it carries minimal load.
Because New Haven runs from sea level to about 570 feet at West Rock within its own boundaries. State geological mapping of the New Haven quadrangle records till covering much of the area but thin or absent over many of the ridges and hills. Near East Rock or West Rock you can reach trap rock well before 42 inches. Toward the harbor you find softer ground and a higher water table. The footing approach follows the lot, not a citywide rule.
It affects the metal far more than the boards. Composite and pressure-treated decking both hold up in coastal air, but connectors, fasteners, joist hangers, and railing hardware corrode when the specification is not matched to the exposure. On a deck open to the Sound this is a design decision made at the start, not a maintenance issue discovered later. It is one of the few places where the cheaper hardware option is genuinely the wrong answer.
Close to it here, but not automatically. Composite and PVC do not absorb moisture the way wood does, which matters in damp coastal air, and they skip the refinishing cycle. The trade-offs still apply: higher up-front cost, dark boards holding heat on a south-facing deck, and a more uniform surface than natural wood. On a sheltered inland lot in Hamden or North Haven with a tight budget, pressure-treated remains reasonable. Directly exposed to the Sound, the maintenance math tips harder toward composite than it does inland.
Design and filing over the winter, construction spring through late fall once concrete will cure. If the property is inside the coastal boundary, start earlier than you would inland. That review sets the schedule and it is the least predictable part of the sequence.
Tell us about the space you have in mind and we will walk the property, work out whether coastal review applies, and put together a plan. No obligation.
