Delaware Roof Pros provides professional chimney flashing in Delaware, OH for residential and commercial properties across Delaware County and the Olentangy corridor. Delaware has two kinds of chimney and they fail for completely different reasons, which is worth knowing before anybody quotes you a repair on one of them. Which kind you own depends almost entirely on the decade your house went up.
The old part of the city has real masonry: brick stacks on houses that predate the war, some of them serving fireplaces nobody has lit in forty years. The correct detail on those has not changed in a century. Step flashing woven at the sidewalls course by course up both slopes, and counterflashing cut into the mortar joint and folded down over the steps. Cut, insert, seal, done. It lasts as long as the mortar does.
What we find instead, over and over, is surface-mount counterflashing bedded in mastic and screwed to the face of the brick. It holds for a season or three, then the sealant shrinks and lifts, and the chimney becomes the wettest thing up there. Retrofitting a proper reglet on an existing chimney is a modest job with a grinder, it is permanent, and we prefer that to selling you a tube of caulk each spring.
The subdivisions have the other kind entirely: a framed chase with siding on it and a sheet metal cap up top, serving a direct-vent gas appliance. No masonry anywhere in it. Those leak at the cap, where a flat or nearly flat lid with an exposed seam sits out in the weather for twenty years, and at the base where the chase meets the roof deck.
Where the upslope face of a chimney runs past roughly thirty inches, a cricket has to be framed in behind it, and a great many houses put up here during the 2000s simply have none. Without a cricket the chimney is a dam. Snow, leaves and water sit against the back wall through the whole winter, and no flashing detail on earth survives standing water indefinitely.
Where the mortar itself has gone, we say so and stop there. Repointing is a mason's work, and flashing a chimney whose joints are failing is money spent carefully on the wrong half of the problem. We would rather hand you a mason's number and come back afterwards than flash over a stack that is going to be rebuilt inside two years anyway.
Our licensed and insured team brings the right materials and equipment to every job — ASTM D1970 ice barrier membrane, step flashing woven at sidewalls, counterflashing folded into a ground-in reglet, synthetic underlayment printed with fastener grids, ASTM D3161 Class F seal strips, H-clipped 7/16-inch OSB decking — and backs the work with a written workmanship warranty. We serve Delaware and nearby communities including Powell, Sunbury, Galena, Ashley.
What We Handle
Everything our chimney flashing in Delaware covers
One crew, one point of contact, and the full range of chimney flashing work in Delaware, OH. If it is on this list we do it in house rather than handing it to a subcontractor:
- step flashing replacement at masonry
- counterflashing set into a ground reglet
- chimney cricket and saddle construction
- crown repair and rebuild coordination
- framed chase cap replacement
- direct vent chase flashing
- surface mount counterflashing removal
- chimney base apron and pan
- masonry repointing coordination
- chase siding and trim repair
- flue and cap weatherproofing
- chimney leak diagnosis
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Delaware 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 ASTM D1970 ice barrier membrane, step flashing woven at sidewalls, counterflashing folded into a ground-in reglet, synthetic underlayment printed with fastener grids, 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 Delaware 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 Delaware County and the Olentangy corridor 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 Delaware
Delaware Roof Pros covers Delaware and the surrounding communities of Delaware County and the Olentangy corridor. 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 Powell, OH — Delaware County, population 14,163
- Chimney Flashing in Sunbury, OH — Delaware County, population 6,614
- Chimney Flashing in Galena, OH — Delaware County, population 924
- Chimney Flashing in Ashley, OH — Delaware County, population 1,198
- Chimney Flashing in Ostrander, OH — Delaware County, population 1,094
- Chimney Flashing in Shawnee Hills, OH — Delaware County, population 835
Start on the Delaware Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Delaware Chooses Delaware Roof Pros
- ✓We tell you which side of the twenty-five thousand dollar line your job lands on, and what changes legally when it crosses, before you sign anything at all.
- ✓Decking, chimney counterflashing and intake correction are priced as separate lines with rates and counts, so a scope cannot quietly shed them to look competitive.
- ✓Inspections are a flat fee and are never credited against work, which means ours can come back telling you to spend nothing for another four years.
- ✓We refuse powered attic fans, coatings on steep-slope asphalt shingle, and any offer to absorb a deductible, and we will explain each refusal on the spot.
The standards behind chimney flashing
Quality here is not a matter of opinion — it is written down. The chimney flashing work we do in Delaware 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 Delaware 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 Delaware, or request a quote and we'll get right back to you.