Whole-home remodeling in Dover

Whole-house jobs around Dover tend to start from one of two kinds of house. 32%¹⁶ of homes inside the city date from the 1960s and 1970s, the decades of the one-story ranch, and 55%¹⁶ of the county's homes went up in 1990 or later, many of them two-story subdivision houses.

Unless a lead-based paint inspection shows otherwise, the EPA says to treat paint in homes built before 1978 as if it contains lead.¹⁷ Beyond flooring, the EPA lists vermiculite attic and wall insulation, roofing and siding shingles, textured paint and patching compounds on walls and ceilings, and hot water and steam pipes wrapped in asbestos blanket or tape among the places asbestos may be found in a home.¹⁸ In a ranch from those decades, ask how the company tests painted trim, old floor tile and textured ceilings before demolition begins.

A newer house brings a different list: builder-grade windows, one heating zone for two floors, and upstairs baths and laundry sitting over finished ceilings. Ask what opening those floors means for the rooms underneath.

With floors and walls open, replacing old supply pipe back to where the water line enters the house costs far less than it will later. The City of Dover has completed a preliminary inventory of the material of its water service lines, and customers can look up their own address in it online.¹⁹

Small projects rarely reach the floodplain code; a renovation that touches every room can. Kent County's floodplain code makes it unlawful to begin construction or other development in or touching a special flood hazard area without a county permit.¹⁴ Under Kent County's floodplain code, work is a substantial improvement when its cost equals or exceeds 50 percent of the structure's market value before construction starts, and damage counts as substantial when restoring the structure would reach the same share.¹⁴

In Kent County flood Zones A, AE and AO, the lowest floor of a residential building, including any basement, must be elevated to 18 inches above the base flood elevation.¹⁴ Inside the city the residential code sets a similar line. Dover's residential code amendments require buildings in flood hazard areas outside Coastal A Zones to have their lowest floors at or above the base flood elevation plus 18 inches, or the design flood elevation if that is higher.¹³

The City of Dover is a participating community in the National Flood Insurance Program.²⁰ Pull up your address on FEMA's flood map early, and ask the permit office how it will set the building's value against the price of the job.

Kent County's Airport Environs Zoning Overlay around Dover Air Force Base requires buildings constructed or placed in its noise zones to have acoustical treatment cutting outdoor-to-indoor noise by 25 to 40 decibels depending on the zone, certified by a Delaware-accredited architect or engineer.²¹ Kent County must tell permit applicants when a property is in the Airport Environs overlay and subject to overflights, noise and sound-attenuation rules, and the same notice language must appear in deeds and leases for affected land.²¹

The overlay's text speaks of buildings constructed or placed after it took effect and says nothing specific about additions to existing homes. If your lot is inside it and the plan adds rooms, ask the county's planning staff whether the sound standard applies before the drawings are finished; inside city limits, ask the city.

EPA's Map of Radon Zones places New Castle County in Zone 2, moderate potential, while Kent and Sussex counties to the south are in Zone 3.²² On EPA's radon zone map for Delaware, Zone 3 counties have a predicted average indoor radon screening level below 2 pCi/L, and the EPA says all homes should be tested regardless of zone.²³ Delaware's Division of Public Health offers Delaware residents a free radon test kit through its Radon Office, and notes that radon levels can differ between neighboring homes, so each home has to be tested.²⁴

A low-potential zone is not a clean result for your house. If the plan seals a crawl space, adds rooms on a slab or changes the heating system, test before the work and again after it. The EPA's guidance is to fix your home if radon tests at 4 picocuries per liter or higher, and to consider fixing it between 2 and 4.²⁵

For very dusty work such as demolition, the EPA describes isolating the work area: sealing it off with no direct access to the occupied rooms, with workers using a separate entrance until cleanup is done.¹⁷ The EPA advises keeping occupants, especially children, away from the work area during a remodel and cleaning up the site before they return.¹⁷

Dover's weather station averages 25 days²⁶ days a year that reach ninety degrees, so a summer job that swaps ductwork or the heat pump can leave the house without cooling for a stretch. Ask how many days, and whether one bathroom will stay working the whole time.

33%²⁷²⁸ of Kent County's owner households are headed by someone sixty-five or older, and a whole-house job may be the last large renovation before those owners need a bedroom and bath on the main floor. More than one in four adults 65 and older fall each year.²⁹

While the walls are open, ask for blocking behind future grab bars and a bathroom door wide enough for a walker. In a two-story house, price a first-floor bath as well; a midrange bathroom addition cost $63,120¹ in Philadelphia in the 2025 report. NAHB's Certified Aging-in-Place Specialist (CAPS) credential trains remodelers in home modifications for aging in place.³⁰

Call the number on this page and you reach one independent company that handles whole-home remodels in the Dover area. The call is recorded, and the work, the timing and the price are settled between you and that company.

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On a contract this size, check the company yourself before you sign or pay a deposit. Delaware's public Contractor Registry lookup lists contractors that properly registered and are considered compliant with Department of Labor laws, searchable by name, ZIP code, certification number, NAICS code or industry; a contractor that drops off the list may not have re-registered, may be under review, or may have been suspended or revoked.³¹ Check a Delaware license