Roof repair
Leaks at chimneys, vents and wall joints on the 1970s and 1980s houses that fill much of the Town. See roof repair.
Herndon is an incorporated town with its own Building Inspections office, a Re-Roof permit type of its own and a Historic District where roof replacement is a common Certificate of Appropriateness request. A Herndon mailing address, though, does not always mean the Town: some homes with that address sit in unincorporated Fairfax County. The first job on any Herndon roof is a Town-or-county address test.
The address test
The Town of Herndon covers 4.29 square miles and had 24,655 residents in the 2020 census. The Herndon mailing area is wider: in the neighboring unincorporated community of Oak Hill, residents may address mail to either Herndon or Oak Hill.
Floris, Franklin Farm and McNair are census places inside that Oak Hill area, so a house on one of those streets can carry a Herndon address and still be Fairfax County territory. The Town links a Fairfax County property search page as a parcel resource, and we confirm which side of the line your parcel is on before we talk scope.
What we do here
Leaks at chimneys, vents and wall joints on the 1970s and 1980s houses that fill much of the Town. See roof repair.
A full tear-off on a house or townhouse row means a Re-Roof permit application if the address is in the Town. See roof replacement and the materials guide.
Rear additions and porch tops, like the white membrane roof in the photo above, are a different system from the main roof. See flat roof.
Town permits
Details below come from the Town's own pages. Confirm your scope with the office before work is scheduled.
The Town's "How do I apply for a permit?" page says the Virginia Uniform Statewide Building Code requires a construction permit before work that alters a building, and that in general a permit is needed for all additions, alterations, decks and garages. Its residential work types list "Re-Roof" as its own choice, next to exterior alteration and addition.
Applications go through Cityworks, the Town's online permit system, so the homeowner or the person applying creates an account there. We do not assume a small repair is exempt. We ask the office.
Inspections are scheduled by email to buildinginspections@herndon-va.gov or by phone at 703-435-6850. The Town asks that requests arrive by 4:30 on the business day before, for a morning slot (9 a.m. to noon) or an afternoon slot (1 p.m. to 4 p.m.).
| What you plan | Who to ask | Contact on the office's page |
|---|---|---|
| Re-roof or roof repair on a parcel inside the Town | Town of Herndon Building Inspections | 703-435-6850, buildinginspections@herndon-va.gov |
| Roof replacement on a property in the Historic District | Town Community Development, then the Historic District Review Board | historicdistrict@herndon-va.gov |
| Not sure the parcel is in the Town | The Town's Community Development office, then us on the phone | (703) 712-1506 |
| Roof work at an Oak Hill, Floris, Franklin Farm or McNair address | Fairfax County Land Development Services | 703-222-0801 (TTY 711) |
| Apartment or condo roof | Your own board or property manager | Ask for the roofing rule in writing |
The county side reads differently. Fairfax County's "Does My Project Require a Permit?" page lists replacement of roof shingles as work that does not need one, and lists roof repairs among the miscellaneous work that does. That is the county's list for county addresses. We do not carry it over to a Town address.
Winter office move
The Town's renovation notice says the Herndon Municipal Center at 777 Lynn Street is closed to walk-up counters from October 2, 2026 to January 2, 2027. Counter services for community development, public works engineering and bill payment move to 397 Herndon Parkway, Suite 100, beginning October 5. The notice gives 703-435-6800 for questions about where to go.
For a roof planned this winter, an in-person paper step goes to Herndon Parkway, not Lynn Street. We check the location first.

Historic District
The Town's Historic District FAQ says most exterior changes need a Certificate of Appropriateness approved by the Historic District Review Board before work begins, and it names roof replacement among the common applications, along with windows, siding and additions. The FAQ says application deadlines are typically 30 days before the board's public hearing so the case can be advertised, and that the board meets monthly.
The Town's district maps show which properties are inside, and each structure is marked contributing or noncontributing. Noncontributing structures were generally built after the district's period of significance.
The state register entry describes a downtown largely rebuilt after a 1917 fire, with modest houses from 1890 to 1920 on the surrounding streets.
Housing
Census Bureau figures, ACS 2024 5-year estimate for the Town of Herndon, 8,076 homes.
3,532 single-family houses, more than any other type in the Town.
2,196 townhouses and similar. Shared walls and decking questions come with them.
2,202 homes, where the roof may be a board or property-manager decision.
The median Herndon home was built in 1983, and 56.1 percent date from 1970 through 1989. About 42.7 percent were built before 1980. The Census counts homes, not roofs, so these figures say nothing about any one roof's age, shape or material.
Weather and trees
On April 6, 2017, the National Weather Service rated an EF0 tornado that formed just west of Herndon Parkway and traveled 3.3 miles northeast across Fairfax and Loudoun counties. Peak winds were 70 mph. The reported damage was mostly trees and fencing, and nobody was hurt.
FFXnow reported in 2025 that the Town's tree canopy covers 26 percent, which an arborist called the lower end of a standard range, below Vienna and the City of Falls Church.
Process
Town, county or Historic District decides which office comes first.
A free 15-minute call about the roof, its age and where water shows.
Someone checks the surface, flashings and drains.
Materials, exclusions and the paperwork the Town or county needs.
The permit and any Review Board step come before a crew date.
Reviews
5.0 on Google from 60 reviews.
FAQ
Not always. Oak Hill, Floris, Franklin Farm and McNair are unincorporated and can use a Herndon address. Ask the Town's Community Development office, or tell us the address on the phone.
Its permit page lists "Re-Roof" as a residential work type, so we plan on a permit application for a replacement and ask Building Inspections about smaller repairs.
The Town's notice moves counter services to 397 Herndon Parkway, Suite 100, from October 5, 2026 to January 2, 2027. Call 703-435-6800 to confirm the location, or use the online system.
By 4:30 on the business day before, by email or at 703-435-6850, for a morning or afternoon slot.
The Town's Historic District maps mark each structure as one or the other. Noncontributing structures were generally built after the district's period of significance. Ask Community Development if the map is unclear.
The Town lists roof replacement among common Certificate of Appropriateness applications, which are due about 30 days before the monthly public hearing. Email historicdistrict@herndon-va.gov first.
No. The Census figures show 43.7 percent detached houses and 27.2 percent attached, with 27.3 percent in buildings of five or more units. The Census counts homes, not roofs.
No. That no-permit list is the county's. A Town address follows Town Building Inspections.
Nearby
Herndon borders Reston, and we also work in Chantilly, Sterling and Great Falls. See every place on the service areas page, read about King's Roofing.
Official pages used, checked 2026-10-08: Town of Herndon, How do I apply for a permit, Town of Herndon Building Inspections, Herndon Municipal Center renovation notice, Town of Herndon Historic District FAQs, Fairfax County, Does My Project Require a Permit.
Roof material guides for Herndon: metal roofs in Herndon, EPDM roofs in Herndon, PVC roofs in Herndon, TPO roofs in Herndon.
Talk through the next step
Share the address, what you are seeing on the roof and the decision you need to make. We will tell you what to expect before anything is scheduled.
9220 Topaz St, Fairfax, VA 22031
Mon to Fri 7 AM to 8:30 PM, Sat 7 AM to 8 PM, closed Sunday