Reston Premium Roofing provides professional chimney flashing in Reston, VA for residential and commercial properties across western Fairfax County. Here is the rare page where the code minimum is exactly right, and it fails only because nobody checks. R903.2.2 requires a cricket on the ridge side of any chimney or penetration wider than thirty inches, measured perpendicular to the slope. It is the detail most commonly missing.
Without one, the flat upslope face of the stack works as a dam. It holds water, it holds ice for a few days each winter, and under this tree cover it holds every leaf that lands on the roof above it. Then it holds all of that against a mortar joint for twenty years. We frame a cricket, sheathe it, and flash it as the small roof it actually is.
Doing the flashing properly means two metals working independently of each other, and there is no version worth having that skips one. Step pieces are laced in, one to each shingle course, on the way up. Above them, counterflashing is let into a raked joint, pinned and sealed, hanging over the step metal but never fixed to it. Masonry and roof deck move on separate schedules, and the detail has to allow for that.
R903.2.1 sets the floor on that metal at 0.019 inch, which is No. 26 galvanized, and we would rather it were heavier. Old flashing bent back into shape during the last reroof is the most common thing we find up there. It is also the rare shortcut Virginia bans outright: the existing building code says counterflashings and collars shall not be reinstalled where rusted, damaged or deteriorated.
While the ladder is up, the stack gets its own look, because immaculate metalwork under a broken crown achieves nothing. Split crowns, spalling brick, opened joints and absent rain caps all admit water that lands on a ceiling looking exactly like roof failure. We name which one we are actually looking at before anybody prices a repair.
A dead chimney that is capped and serving no appliance is often better taken down below the roof line and decked over than nursed indefinitely. Half a day of framing closes a leak path that has been costing money for twenty years. We would sooner put that option in front of you now than watch you buy flashing for the third time.
Our licensed and insured team brings the right materials and equipment to every job — a self-adhering ice barrier carried inside the exterior wall line, double underlayment on connector slopes under four in twelve, six fasteners per shingle against a code floor of four, twenty-four-inch open valley metal in twenty-six gauge, a cricket framed on the ridge side of a wide stack, kick-out flashing where an eave runs into a vertical sidewall — and backs the work with a written workmanship warranty. We serve Reston and nearby communities including Herndon, Vienna, Oakton, McLean.
What We Handle
Everything our chimney flashing in Reston covers
One crew, one point of contact, and the full range of chimney flashing work in Reston, VA. If it is on this list we do it in house rather than handing it to a subcontractor:
- chimney flashing repair reston va
- chimney leak repair
- step flashing installation
- counter flashing mortar joint
- chimney cricket saddle
- chimney crown repair
- chimney chase flashing
- reglet counterflashing
- chimney removal below roof
- chimney rain cap
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Reston services.
Materials, equipment and how we do chimney flashing
The difference between chimney flashing that lasts and chimney flashing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with a self-adhering ice barrier carried inside the exterior wall line, double underlayment on connector slopes under four in twelve, six fasteners per shingle against a code floor of four, twenty-four-inch open valley metal in twenty-six gauge, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Reston job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of roofing work in western Fairfax County means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do chimney flashing outside Reston
Reston Premium Roofing covers Reston and the surrounding communities of western Fairfax County. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Chimney Flashing in Herndon, VA — Fairfax County, population 24,655
- Chimney Flashing in Vienna, VA — Fairfax County, population 16,473
- Chimney Flashing in Oakton, VA — Fairfax County, population 36,732
- Chimney Flashing in McLean, VA — Fairfax County, population 50,773
- Chimney Flashing in Great Falls, VA — Fairfax County, population 15,953
- Chimney Flashing in Brambleton, VA — Loudoun County, population 23,486
Start on the Reston Premium Roofing homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Reston Chooses Reston Premium Roofing
- ✓Every quote runs in two columns. The left is what the 2021 Virginia Residential Code obliges anyone to do on your roof. The right is what we install instead, priced separately, so you can strike a line and pay less.
- ✓Fairfax County is not allowed to ask for more. Section 36-98 of the Code of Virginia makes the statewide code supersede county building regulations and expressly overrides local ordinances requiring particular materials or finishes on a single-family house.
- ✓The one exception is Table R301.2, which the code hands to the locality to fill in. Fairfax designated an ice barrier as required and the City of Alexandria did not, so we install to the county your house is actually in.
- ✓Four fasteners per strip shingle is the floor under R905.2.6. We set six, in the manufacturer's nail zone, and photograph the pattern on each slope before the next course hides it.
The standards behind chimney flashing
Quality here is not a matter of opinion — it is written down. The chimney flashing work we do in Reston follows published industry standards: NRCA publishes the Roofing Manual, the industry's reference for details and slope minimums, and Asphalt Roofing Manufacturers Association sets the shingle application and ventilation guidance the warranties reference. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every chimney flashing project in Reston gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free chimney flashing free estimate in Reston, or request a quote and we'll get right back to you.