From the gracious early-20th-century singles of the Highlands and Wawaset Park to the Victorian twins of Trolley Square to the postwar neighborhoods of Brandywine Hundred just north of the city line — we design and install custom sunrooms, screen rooms, and patio enclosures throughout Wilmington and its surrounding communities.
Wilmington is Delaware’s largest city and the New Castle County seat — roughly 71,000 residents at the confluence of the Christina River and the Brandywine, half an hour down I-95 from our West Conshohocken headquarters. It’s one of the closest major markets in our entire footprint, and one of the most architecturally layered: a corporate capital with a genuinely historic core, park-side neighborhoods of serious early-20th-century housing stock, block after block of brick rowhomes and twins, and a ring of postwar suburbs that carry Wilmington addresses well beyond the city limits.
Wilmington’s history starts earlier than almost anywhere in the region — Fort Christina, established in 1638 at the mouth of the Christina River, was the first Swedish settlement in North America, and Old Swedes Church, built in 1698, still stands as one of the oldest church buildings in the country in continuous use. Quaker Hill preserves the city’s early Quaker settlement, and the mills along the Brandywine — flour, textiles, and eventually the DuPont powder works upstream — drove the city’s growth into a manufacturing power and, through the twentieth century, the corporate capital it remains today. The Christina Riverfront has been substantially redeveloped over the past two decades into a dining, entertainment, and residential district.
The residential fabric rewards a close look. Rowhomes and twins are the city’s dominant housing stock — solid brick, late-19th and early-20th century, from Little Italy to the Ninth Ward. Trolley Square and the surrounding Forty Acres blocks carry Victorian twins on walkable streets dense with restaurants and shops. The Highlands, alongside Rockford Park, holds some of the city’s most gracious early-20th-century singles, and two planned communities from the World War I era — Wawaset Park, built by DuPont for its employees in 1918, and Union Park Gardens, built as wartime shipbuilders’ housing — are both on the National Register. Brandywine Park, threading the creek through the city’s heart, dates to the 1880s with a design credited to Frederick Law Olmsted.
Then there’s everything with a Wilmington address that isn’t technically in Wilmington. Brandywine Hundred, the unincorporated territory north of the city line, filled in after the war with split-levels, colonials, and ranches from the 1940s through the 70s — Fairfax, Talleyville, Graylyn Crest, and the neighborhoods along the Concord Pike and Marsh Road corridors all carry Wilmington mailing addresses in unincorporated New Castle County. To the west, the Kennett Pike corridor rises toward Greenville and the chateau country edge, with Westover Hills and estate properties in between. It’s one market to a homeowner searching for a sunroom, but two permitting jurisdictions — more on that below.
Wilmington is a little over thirty minutes from our West Conshohocken headquarters straight down I-95 — one of the closest major markets we serve. Looking beyond Wilmington, we also serve New Castle County from top to bottom, including Newark to the southwest.
Whether you’re adding a four season sunroom to a Highlands single, enclosing the patio behind a Brandywine Hundred split-level, or screening the rear porch of a Trolley Square twin, the right product depends on your home and how you’ll use the space. We build all four primary outdoor living products throughout Wilmington and its surrounding communities.
Fully insulated, year-round rooms designed with the architectural seriousness Wilmington’s finest neighborhoods deserve — divided-light fenestration and material coordination appropriate to a Highlands or Wawaset Park single, and proportions that hold their own beside serious early-20th-century architecture.
Light-filled rooms designed for spring through fall enjoyment — a natural fit for the park-side blocks near Rockford and Brandywine Parks and the leafy, mature-tree lots of Brandywine Hundred, where the surrounding green is the whole point.
Built around your existing patio, deck, or porch — and a particularly strong fit for Wilmington’s housing stock at both ends. On compact city lots, an enclosure over the existing rear patio is the most integrated path to real outdoor living space a rowhome or twin can take; behind a Brandywine Hundred split-level or ranch, the slab is usually already there waiting. Glass, screen, or combination styles.
Insect protection plus overhead weather coverage — a natural fit for the wooded lots of Brandywine Hundred and the homes near the Brandywine’s parkland, where summer evenings outside are central to how the house is used and the mosquitoes have opinions about it.
Wilmington projects come with considerations rooted in the city’s layered geography — a city-limits line that runs invisibly through what feels like one continuous market, a set of designated historic districts with design review, and a compact-lot urban housing stock that rewards careful design. Here’s what shapes projects here.
“Wilmington” the mailing address extends far beyond Wilmington the municipality — most of Brandywine Hundred, the Concord Pike corridor, and neighborhoods well north and west of the city line carry Wilmington addresses while sitting in unincorporated New Castle County. The distinction matters at exactly one moment: permit time. Projects inside the city limits are permitted through Wilmington’s Department of Licenses and Inspections; projects in the unincorporated county go through the New Castle County Department of Land Use. Different offices, different forms, different review timelines — same house, as far as the homeowner is concerned. Our project managers confirm the actual jurisdiction from your specific address during the consultation and prepare the right submission the first time, so the distinction stays our problem rather than yours.
Wilmington holds a substantial roster of designated historic districts — Quaker Hill, Wawaset Park, Union Park Gardens, the Forty Acres blocks around Trolley Square, and Brandywine Village among them. For properties within the city’s locally designated districts, exterior modifications typically pass through design review focused on architectural compatibility: proportion, fenestration, materials, and roof form in keeping with the host home and the district’s character. Traditional gable proportions, divided-light glass, and trim coordination at the home’s original level of finish are the design vocabulary these reviews want to see — which happens to be the vocabulary we build in anyway. Where review applies, our project managers prepare and submit the application as part of the project.
A large share of Wilmington’s housing is rowhomes and twins on compact city lots — party walls, narrow rear yards, and alley access. None of that rules out a project; it changes how the project is designed. An enclosure sized to the existing rear patio or built off the rear ell, structural attachment detailed for solid masonry construction, and setbacks confirmed against the city’s zoning for the specific lot — that’s the work, and it’s work we know. City installs also take a little more logistical choreography (staging, parking, material handling on tight streets), which we plan for up front. Some of the most transformative projects we build are on exactly these lots, because a compact rear yard gains proportionally more from an enclosed, usable room than a big suburban parcel ever could.
Whether your home is a Highlands single beside Rockford Park, a Trolley Square twin, or a Fairfax split-level in Brandywine Hundred, the same factory-trained installers do the work — our own team, never subcontractors.
Half a century of structural coverage on every project. No depreciation, no fine print. Same warranty on a city rowhome as on a Kennett Pike estate.
Our products are manufactured in Pennsylvania — barely half an hour up I-95 from Wilmington, which makes them practically local — and engineered for the humid subtropical climate the Delaware Valley shares.
Wilmington’s split between city and county permitting, its historic district review, and its range from compact rowhome lots to estate properties means a Wilmington project manager has to know more than one kind of work. Yours handles the right design approach and the right permit path for your specific address.
We install across Wilmington’s city neighborhoods and throughout the surrounding communities that share its address. A representative sample of the areas we serve, organized by section:
The Highlands | Trolley Square and Forty Acres | Wawaset Park | Union Park Gardens | Cool Spring and the Delaware Avenue corridor | Little Italy | the Ninth Ward | the residential blocks around Brandywine Park and Rockford Park
Fairfax | Talleyville | Graylyn Crest | Alapocas | Bellefonte | the Concord Pike and Marsh Road corridors | the neighborhoods carrying Wilmington addresses across unincorporated northern New Castle County
Westover Hills | the Greenville and Kennett Pike corridor | Elsmere | Newport | Richardson Park | the Union Street and Bancroft Parkway area
Your specific neighborhood or section not listed? We serve essentially every residential address in and around Wilmington. Submit your address through our consultation form and we’ll confirm in our first response.
Looking beyond Wilmington? See our Newark overview, our New Castle County overview, or our complete service area.
A little over thirty minutes straight down I-95 — Wilmington is one of the closest major markets in our footprint, closer than much of our own Pennsylvania service area. Practically, that means scheduling is easy: consultations, installations, and any follow-up visits happen without the logistical planning our farther markets require. Wilmington sits squarely in our home territory.
It changes exactly one thing: which office issues the permit. Inside the city limits, projects go through Wilmington’s Department of Licenses and Inspections; in the unincorporated county — which includes most of Brandywine Hundred and much of what carries a Wilmington mailing address — they go through the New Castle County Department of Land Use. The design work, the crew, the warranty, and the quality bar are identical either way. We confirm your actual jurisdiction from your address during the consultation and prepare the right submission.
Yes — and these are some of the most transformative projects we build. A compact rear yard gains proportionally more from an enclosed, usable room than a large suburban parcel does. The design work centers on sizing the enclosure to the existing rear patio or ell, detailing the structural attachment for solid masonry construction, and confirming setbacks against the city’s zoning for your specific lot. City installs take a bit more logistical choreography on tight streets, and we plan for that up front.
Yes — with careful design. For properties in the city’s locally designated historic districts, exterior modifications typically pass through design review focused on architectural compatibility: proportion, fenestration, materials, and roof form in keeping with your home and the district’s character. We design to those expectations from the start — divided-light glass, traditional gable proportions, trim coordination at the home’s original level of finish — and our project managers prepare and submit the review application as part of the project.
Yes — all of it. Brandywine Hundred, the Concord Pike and Marsh Road corridors, Westover Hills, the Greenville and Kennett Pike edge, Elsmere, Newport, and Richardson Park are all within our footprint, along with the rest of New Castle County from Claymont down through Newark and Middletown. If your address is in or around Wilmington, we serve it.
Schedule a free in-home design consultation. Our team will visit your home — whether it’s a Highlands single, a Trolley Square twin, a Brandywine Hundred split-level, or an estate off Kennett Pike — and walk through what’s possible for your specific situation. No pressure, no obligation. Response within one business day.
Serving Wilmington and all of New Castle County, Delaware. Response within one business day.
