Baltimore Premium Roofing provides professional chimney & party-wall flashing in Baltimore, MD for residential and commercial properties across Central Maryland. Flashing on a rowhouse is not step flashing. There is no slope for it to step down and no eave for it to end at. Every flashing on this roof is a wall termination, and on both sides that wall belongs half to somebody else.
The chimneys make it sharper still. Baltimore rowhouse chimneys usually sit in or hard against a party wall, and on plenty of blocks one stack carries flues from both houses. So the masonry you are about to cut a reglet into may not be entirely yours, and inspecting your chimney partly means inspecting theirs. We keep our cuts and fasteners on our own side, and where a stack is shared we say so before work starts.
The details themselves are ordinary sheet-metal craft done properly. A base ply turned up the masonry, then counterflashing either let into a cut reglet or surface-mounted on a termination bar with a sealant joint, mechanically fastened and lapped so water runs out rather than in. Corners are fabricated, not folded on the roof and hoped over. Sealant is a joint filler, never the waterproofing.
Crowns, caps and abandoned flues account for more chimney leaks in this city than flashing does. Half the stacks on a Baltimore row are no longer connected to anything, the crowns are cracked, the pots are open to the sky, and the whole mass is soaking water and sending it down inside the brick to appear at the ceiling below. Capping a dead flue costs very little and stops a lot.
The party-wall junction itself gets the same care as a chimney. Base flashing up the wall, terminated in a reglet or bar, and coping over the top so nothing enters from above. Where the neighbour's roof is higher or lower than yours the junction becomes a small step, and those steps are the single most reliable leak location on the whole assembly.
If your chimney is structurally moving, cracked through, or needs relining, that is a mason's job or a chimney specialist's, and we will tell you which. We flash chimneys and we cap dead flues. We do not rebuild stacks, and a roofer who says he will do all of it in one afternoon is quoting on something he has not looked at.
Our licensed and insured team brings the right materials and equipment to every job — self-adhered modified bitumen cap sheets, party-wall base flashing terminated in a surface-mounted reglet, through-wall scuppers with sheet-metal collector heads, parapet coping caps set on cleats with sealed joints, tapered polyisocyanurate crickets pitched to the rear outlet, cockloft framing with joist ends pocketed into brick — and backs the work with a written workmanship warranty. We serve Baltimore and nearby communities including Dundalk, Towson, Catonsville, Essex.
What We Handle
Everything our chimney & party-wall flashing in Baltimore covers
One crew, one point of contact, and the full range of chimney & party-wall flashing work in Baltimore, MD. If it is on this list we do it in house rather than handing it to a subcontractor:
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- counterflashing rowhouse baltimore
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Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Baltimore services.
Materials, equipment and how we do chimney & party-wall flashing
The difference between chimney & party-wall flashing that lasts and chimney & party-wall flashing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with self-adhered modified bitumen cap sheets, party-wall base flashing terminated in a surface-mounted reglet, through-wall scuppers with sheet-metal collector heads, parapet coping caps set on cleats with sealed joints, 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 Baltimore 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 Central Maryland 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 & party-wall flashing outside Baltimore
Baltimore Premium Roofing covers Baltimore and the surrounding communities of Central Maryland. 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 & Party-Wall Flashing in Dundalk, MD — Baltimore County, population 67,796
- Chimney & Party-Wall Flashing in Towson, MD — Baltimore County, population 59,553
- Chimney & Party-Wall Flashing in Catonsville, MD — Baltimore County, population 44,701
- Chimney & Party-Wall Flashing in Essex, MD — Baltimore County, population 40,505
- Chimney & Party-Wall Flashing in Parkville, MD — Baltimore County, population 31,812
- Chimney & Party-Wall Flashing in Pikesville, MD — Baltimore County, population 34,168
Start on the Baltimore Premium Roofing homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Baltimore Chooses Baltimore Premium Roofing
- ✓We scope the two party walls before the field, because on a Baltimore rowhouse the roof ends at somebody else's building on both sides.
- ✓No open flame on an occupied attached block. Self-adhered and cold-applied systems only, and that commitment is written into the proposal.
- ✓Every proposal states your position in the row, because a middle house, an end unit and a house beside a vacant lot are three different roofs.
- ✓Coping, cornice and the rear outlet are priced as separate lines from the membrane, since that is where rowhouse roofs actually fail.
The standards behind chimney & party-wall flashing
Quality here is not a matter of opinion — it is written down. The chimney & party-wall flashing work we do in Baltimore 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 & party-wall flashing project in Baltimore 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 & party-wall flashing free estimate in Baltimore, or request a quote and we'll get right back to you.