Yonkers Roof Pros provides professional chimney and parapet flashing in Yonkers, NY for residential and commercial properties across southwest Westchester. Flashing is where roofs actually leak, and on a masonry building the flashing is a wall detail more than a roof detail. The membrane or the shingle stops at the wall. What happens in the two feet above that stopping point decides whether the building stays dry.
On the low-slope deck the base flashing turns up the parapet over a cant strip, is fastened at the top, and is then covered by counterflashing set into a reglet cut in the brick and held with lead wedges, not smeared with sealant along its top edge. Sealant is a maintenance item with a five-year life being asked to do a thirty-year job. That reglet is cut with a grinder and pointed afterwards.
Chimneys need the same discipline plus a cricket. A stack more than roughly thirty inches wide across the fall of the roof wants a saddle behind it so water divides and runs past instead of piling against the back face and finding the mortar. That saddle is missing on most of the chimneys we survey in this city. The saddle is cheap while the roof is open and awkward once it is closed.
The masonry itself is frequently the real culprit. A cracked crown, open bed joints in the top three courses, or a flue liner that has let the brick soak all winter will produce a stain in exactly the place a flashing failure produces one. We wet-test the stack and the flashing separately so the finding is a finding rather than a guess. A crown repair is masonry work, and we will tell you that too.
Where a roof abuts a taller neighboring wall, and on these tight blocks that is common, the correct detail is a through-wall flashing with an end dam, not a piece of metal tucked under a course and caulked. We use lead-lined sleeves at scuppers in the same wall and terminate them so the wall can move without opening the joint. End dams are what separate a real flashing from a strip of bent metal.
Material choice is not a preference. Lead and lead-coated copper suit masonry and last for decades, aluminum corrodes against fresh mortar and should not be used there at all, and stainless is right at a chimney where flue gases reach the metal. We name the metal and its thickness on the estimate so a second bid can be compared honestly. Thickness is where a cheap bid quietly saves its money.
Our licensed and insured team brings the right materials and equipment to every job — cast-iron drain bowls with replacement clamping rings, tapered polyisocyanurate laid to a quarter-inch board layout, lead-lined through-wall scupper sleeves, torch-applied SBS cap sheet turned up the parapet, gravel-stop edge metal set in two courses of flashing cement, sheet-metal coping caps with concealed splice plates — and backs the work with a written workmanship warranty. We serve Yonkers and nearby communities including Mount Vernon, Bronxville, Tuckahoe, Eastchester.
What We Handle
Everything our chimney and parapet flashing in Yonkers covers
One crew, one point of contact, and the full range of chimney and parapet flashing work in Yonkers, NY. If it is on this list we do it in house rather than handing it to a subcontractor:
- chimney flashing repair yonkers
- chimney leak westchester ny
- counterflashing reglet
- parapet base flashing
- through wall flashing masonry
- chimney crown repair yonkers ny
- step flashing replacement
- chimney cricket saddle
- masonry chimney leak repair
- cant strip base flashing
- reglet and lead wedges
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Yonkers services.
Materials, equipment and how we do chimney and parapet flashing
The difference between chimney and parapet flashing that lasts and chimney and parapet flashing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with cast-iron drain bowls with replacement clamping rings, tapered polyisocyanurate laid to a quarter-inch board layout, lead-lined through-wall scupper sleeves, torch-applied SBS cap sheet turned up the parapet, 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 Yonkers 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 southwest Westchester 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 and parapet flashing outside Yonkers
Yonkers Roof Pros covers Yonkers and the surrounding communities of southwest Westchester. 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 and Parapet Flashing in Mount Vernon, NY — Westchester County, population 73,893
- Chimney and Parapet Flashing in Bronxville, NY — Westchester County, population 6,656
- Chimney and Parapet Flashing in Tuckahoe, NY — Westchester County, population 7,084
- Chimney and Parapet Flashing in Eastchester, NY — Westchester County, population 20,901
- Chimney and Parapet Flashing in Scarsdale, NY — Westchester County, population 18,253
- Chimney and Parapet Flashing in Hartsdale, NY — Westchester County, population 3,377
Start on the Yonkers Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Yonkers Chooses Yonkers Roof Pros
- ✓We settle one question before any other: does this roof still drain. The city's own re-roofing permit hangs two code allowances on that word, and your price hangs on it too.
- ✓A hose test on the low corner with the chalk line and the drain-down time written onto the estimate, rather than a slope guessed at from the sidewalk.
- ✓The drain bowl, clamping ring, strainer and the leader inside the wall chase are itemized apart from the membrane, because they fail on a completely different clock.
- ✓Where the street face is shingle and the deck behind it is membrane, you get two systems, two prices and two service lives, never one figure for the address.
The standards behind chimney and parapet flashing
Quality here is not a matter of opinion — it is written down. The chimney and parapet flashing work we do in Yonkers 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 and parapet flashing project in Yonkers 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 and parapet flashing free estimate in Yonkers, or request a quote and we'll get right back to you.