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Centreville Homes Compared With Fairfax County
Centreville sits in Fairfax County, Virginia. The table shows how its housing differs from the county as a whole, which decides what a duct and dryer vent visit checks first.
| Measure | Centreville | Fairfax County |
|---|---|---|
| Median year built | 1991 | 1983 |
| Built in the 1980s or 1990s | 69% | 37% |
| Townhomes | 48% | 23% |
| Detached houses | 31% | 46% |
| Heat with natural gas | 63% | 54% |
| Owner-occupied | 73% | 69% |
Source: U.S. Census Bureau, American Community Survey 2024 5-year estimates. Figures are estimates and are rounded.
Centreville, Virginia, in Fairfax County
Several states have a Centreville, including a town in Maryland. This page covers Centreville in Fairfax County, Virginia, in ZIP codes 20120 and 20121. The town was founded in 1792 inside Loudoun County and became part of Fairfax County in 1798, when the boundary between the two counties moved.
Townhome Rows from the 1980s and 1990s
Townhomes make up 48 percent of Centreville's housing, double the Fairfax County share. Many have the laundry on an upper floor, with the dryer exhaust running across a ceiling or up to the roof. Virginia's residential code limits a dryer exhaust run to 35 feet, minus an allowance for each elbow.
| Vent route | Common problem | Price position |
|---|---|---|
| Basement or first-floor wall | Crushed transition hose behind the dryer | Low end of $135 to $360 |
| Upper-floor laundry to a side wall | Lint packed at elbows in the ceiling | Middle |
| Roof termination | Lint or a nest in the roof cap | Upper end |
The roof dryer vent page covers the roof-cap case.
Gas Furnaces and Thirty-Year-Old Ducts
Six in ten Centreville homes heat with natural gas. Furnaces from the 1990s have mostly been replaced by now, but the ducts behind them stay. The EPA advises having fuel-burning furnaces serviced before each heating season, and the Consumer Product Safety Commission advises carbon monoxide alarms on every level of the home. When the furnace is swapped, ask for the duct joints and boots to be checked too.
Association Rules for Exterior Vents
If your townhome community has a homeowner association, its rules cover exterior changes. Replacing a broken vent hood with a matching one is routine work; moving a vent or adding a roof cap is the kind of change that needs approval. The townhome and HOA vent page covers who pays for shared parts.
Centreville Duct and Dryer Vent FAQs
Is Centreville in Fairfax County?
Yes. Centreville, Virginia, is a census-designated place in Fairfax County and the county's most populous community. It was part of Loudoun County until 1798.
How much does dryer vent cleaning cost for a Centreville townhome?
Dryer vent cleaning runs $135 to $360. A short wall vent sits at the low end, an upper-floor run in the middle, and a roof termination at the upper end.
How much does air duct cleaning cost in Centreville?
Townhome duct cleaning typically runs $190 to $650. A detached house runs about $500 to $800 per system.
Do I need HOA approval to replace a dryer vent hood?
If your community has an association, replacing a broken hood with a matching one is routine work. Moving a vent or adding a roof cap is the kind of change that needs approval, so check the rules first.