Berkeley County, West Virginia · Martinsburg
Water spreading, a burst pipe, sewage, mold or smoke? Call to be connected with a restoration company that serves Martinsburg, Inwood and Falling Waters. Start the steps below while you wait.
Answered 24/7 by a participating local provider. We're a referral service and don't do the work ourselves. How it works
Start here
Pick the closest match. These steps limit the damage and protect your insurance claim. Skip anything that isn't safe.
With 14% of homes built before 1960 and about 23 hard-freeze nights a year, frozen and split pipes are a leading winter risk in the county.
September brings the most downpours to Berkeley County, part of 6.5 heavy-rain days a year. Check the sump first.
Sewage backups in Berkeley County spike on heavy-rain days, about 6.5 a year, when sewer mains fill up and water finds the lowest drain.
Berkeley County's wettest day in the 2015–2024 record brought 3.8 inches, and about 92 freeze-thaw days a year mean ice dams in some winters.
8% of occupied homes in Berkeley County heat mainly with wood or propane, below the West Virginia county median of 10.1%.
About 36 nights a year here stay at 65°F or warmer, so basements and crawl spaces can grow mold even without a leak.
Local risk profile
With 53,819 homes and around 129,514 residents, Berkeley County is 321 square miles of eastern West Virginia. The county seat is Martinsburg, and Inwood, Falling Waters and Hedgesville round out the largest towns. Much of its housing is recent, with a median build year of 1996.
28/100 Water Damage Risk Index: Moderate Berkeley County ranks 54 of 55 West Virginia counties. See the statewide ranking and method.The three factors where Berkeley County ranks highest compared with other West Virginia counties.
Berkeley County is milder than most of West Virginia, but not mild enough to skip winterizing. From 2015–2024 it averaged 23 nights a year at 20°F or colder, the range where pipes in exterior walls, crawl spaces and unheated garages freeze, and 102 nights at or below 32°F. That ranks 40th of 55 counties.
The longest cold spell was straight 13 days without the temperature rising above freezing, ending in January 2018. The coldest night reached about -1°F on January 31, 2019. Burst pipes usually show up when a spell like that breaks and the ice thaws.
The freeze season here runs November to March, with January the coldest. If you travel then, leave the thermostat at 55°F or above and open sink cabinets on outside walls.
On average the first fall freeze arrives around Oct 26 and the last spring freeze around Apr 14.
Berkeley gets fewer downpours than most West Virginia counties, but they still fill basements. The county gets about 39.5 inches of rain and melted snow a year, with 6.5 days of an inch or more (39th of 55). Those downpours cluster in May, July and September, when sump pumps and gutters are tested hardest. The wettest day on record brought 3.8 inches on August 9, 2024. Multi-day storms matter most for basements; the wettest three days on record here totaled 5.72 inches (through August 9, 2024).
About 92 days a year swing from below freezing at night to above freezing by day. Those freeze-thaw cycles feed ice dams on roofs, open cracks in foundations and driveways, and stress pipes that are already marginal.
Housing
Roughly 28% of the county's housing was built before 1980. That puts Berkeley among the newer housing stocks of West Virginia's 55 counties.
Since 2000 the county has added enough housing that 44% of homes are that new. Modern PEX and copper rarely fail on their own; the leaks come from connections, appliances and storms.
28% date from 1980 to 1999, the window when polybutylene, a gray flexible plastic supply pipe, was used in some homes. It's prone to leaks at the fittings, so it's worth checking for in a house from those years.
Here 10% of housing is manufactured homes. Check the skirting and the heat tape on the main water line every fall, because that one exposed line is what freezes.
Beyond water
Berkeley County averages 36 warm, muggy nights a year (lows of 65°F or more) and gets the most rain in May. Keep indoor humidity under 60%, as the EPA advises, and dry any leak within 24 to 48 hours; in a humid month a wet basement left alone won't dry by itself.
Mold remediation: what to expectHeating fuel matters for fire risk. In Berkeley County it's 10% utility gas, 77% electric, 4% propane and 4% wood. Heating equipment, cooking and electrical failures cause most home fires nationally. Even a small kitchen fire can leave soot through the whole house, because smoke follows air currents into closets, ducts and attic space.
Fire and smoke cleanup: first stepsCoverage
Calls connect to restoration companies that work across Berkeley County. The largest communities by population:
Population from ACS 2020-2024 5-year estimates. Townships and unincorporated areas are covered too.
Nearby
Morgan gets more pipe-freeze nights than Berkeley. All of its neighbors see more heavy-rain days. Morgan County has the oldest housing nearby, with 40% of homes built before 1980.
By the numbers
| Factor | Berkeley | West Virginia median | Rank |
|---|---|---|---|
| Homes built before 1960 | 14% | 31% | 54 of 55 |
| Homes built before 1980 | 28% | 55% | 55 of 55 |
| Homes built 2000 or later | 44% | 17% | 1 of 55 |
| Manufactured or mobile homes | 10% | 16% | 44 of 55 |
| Vacant homes | 5.2% | 17% | 55 of 55 |
| Wood or propane heat | 7.5% | 10% | 35 of 55 |
| Nights at 20°F or colder | 23/yr | 25/yr | 40 of 55 |
| Days with 1 inch+ of rain | 6.5/yr | 6.8/yr | 39 of 55 |
| Freeze-thaw days | 92/yr | 89/yr | 13 of 55 |
| Muggy nights (65°F+) | 36/yr | 27/yr | 13 of 55 |
Rank 1 is the highest value. Bars run from the lowest to the highest West Virginia county; the tick marks the median; orange means higher water damage risk than the median, green means lower.
Questions
Peak risk months in Berkeley County: freezing from November to March, heavy rain in May, July and September.
Sources: U.S. Census Bureau, ACS 2024 5-year estimates (2020-2024); weather from NOAA nClimGrid-Daily county averages (EpiNOAA), 2015–2024, averaged across the county; county boundaries from Census TIGER. Reviewed 2026-10-21. Methodology