Pick one and we will keep it short. Three taps and you are done.
We run calls seven days a week, and we answer the phone around the clock.
Last step. We will call you back to confirm the window.
An emergency deserves a person, not a web form sitting in an inbox. Call the shop and we pick up.
No heat, no water, an active leak, or a backed up main. These move to the front of the line, day or night, weekend or holiday.
Your request is in and somebody will call you back to confirm a window. Here is what we have:
31% of the roughly 8,076 homes in Herndon were built in the 1970s, more than any other decade, and another 41% went up across the 1980s and 1990s. The old town centre is the exception here, not the pattern.
Herndon reads older than it is. There is a real old centre with genuinely old housing in it, so a townwide figure of 12% built before 1970 surprises people. Thirteen of the 26 areas we cover have a higher pre-1970 share. A small pocket of age, a late-century town around it, and the two halves break in completely different ways.
So at a Herndon address we ask the decade, not the street.
The seventies were the years cast iron was giving way to PVC underground, and a house from that window can have either, or both on one run where somebody patched a section later. Cast iron scales from the inside and goes brittle along the bottom where it sits wet. PVC fails at joints and bellies instead, because it moves. Supply side those years were copper, which at least warns you: a pinhole stains a joist for weeks before anyone looks up.
One thing matters if your house went up early in that decade. Orangeburg, tar-impregnated wood fibre pipe, went into laterals until around 1972, and it does not crack. It deforms, the bore goes oval, then it collapses. Cabling does nothing for a pipe that has lost its shape, so a line backing up on a schedule wants a camera rather than another snake. Sewer line repair and replacement covers both routes.
Polybutylene went into American houses from 1978 until about 1995. A quarter of Herndon's homes were built in the 1980s and another 16% in the 1990s, and nine of the 26 areas we cover sit deeper inside that window. Build era is not proof of material. Plenty of houses from those years were plumbed in copper, and plenty have been repiped since. What each material does as it ages.
Go and look, because it takes two minutes. Polybutylene is usually grey indoors, often printed PB2110, flexible where copper is rigid, and crimped with a metal band rather than soldered. The grey plastic fittings are the part that cracks. Check at the top of the water heater, then check a second spot, because these houses were sometimes part copper.
Here is the opinion we will own. Waiting is a bad bet on this one material. Chlorine works on the inner wall and the acetal fittings for years with nothing showing, then a fitting lets go at full pressure. No stain, no warning drip, just water through a ceiling at an hour you did not pick.
About one home in twenty-five townwide predates 1960, and that is the stock where we expect galvanized steel supply and original cast iron. Galvanized corrodes inward and the bore closes so gradually that nobody notices for thirty years, until a shower upstairs barely runs. New fixtures will not fix that.
Herndon is a town inside Fairfax County, so permits and inspections go through Fairfax County Land Development Services. On the fee schedule effective July 1, 2026, a water service (new, replacement or repair) is a $77.70 line item and a sewer is the same $77.70, over a base permit minimum of $141.75, with a 10% technology surcharge per transaction. We will not add those into a total, because the schedule does not say how they combine. Ask anyone quoting a flat permit figure where it came from.
Two things catch homeowners out on laterals. The work needs a county plumbing permit on private property and a state permit as well if it runs into VDOT right of way, a second authority on one trench. And the lateral is yours under County Code 65-6-1 and Virginia Property Maintenance Code 504.1. The county does not locate or mark private laterals, so finding it is part of the job.
Gas or oil-fired water heater replacement requires a permit in Fairfax County even like-for-like, under VRC 108.2 and the county's Household Appliance permit page. Those fees start at $78.75 for one appliance and $96.60 for two, plus the 10% surcharge. Anyone telling you a straight gas swap is permit-free here is telling you something the code does not say. Venting deserves more of your attention anyway, because a tank that back-drafts is a carbon monoxide problem wearing a plumbing costume.
Fairfax Water's James J. Corbalis treatment plant is physically in Herndon. That is geography and nothing more, and we will not tell you your tap water comes out of it. The utility publishes service boundaries only as maps and says those borders may change, across more than 4,000 miles of main. A contractor certain which plant treats your street is guessing.
On hardness, Fairfax Water's FAQ says its water is "moderately hard to hard (5 - 10 grains per gallon, or 84 - 170 mg/l)". Read that as a range, because the utility's monthly lab totals land outside it in both directions. Water in that band lays sediment in a tank, which is the honest argument for flushing one yearly. Whether it justifies treatment depends on what you see at fixtures.
A Herndon house from the seventies or eighties is on its second or third system by now, and the usual finding is equipment sized for a different house than the one it sits in. Somebody matched the old tonnage and nobody ran a load calculation. Rooms that will not hold temperature are more often ducts and returns than equipment, heat pumps included.
There is a lot of office and light commercial out here, and testable backflow assemblies have to be tested annually. In Fairfax County the tester must be DPOR-certified as a Backflow Prevention Device Worker and on the county's Authorized Vendor List. We are not on that list, so we will not take your annual test here. Be wary of anyone who offers without mentioning it. Installing or replacing an assembly needs a plumbing permit even like-for-like, and that we do, including after-hours commercial work.
One call covers plumbing and HVAC. Talk to somebody who has been doing this for decades.
