Janesville Premium Roofing provides professional chimney flashing in Janesville, WI for residential and commercial properties across south central Wisconsin. Chimney flashing is one of the few roof details the Uniform Dwelling Code addresses directly, and its best clause is about width. SPS 321.28 requires a cricket where a chimney runs over 30 inches across, and Janesville's older houses are full of wide chimneys that never got one.
The same section requires flashing at the junction of chimneys and roofs, in all valleys and around all roof openings, with the chimney flashing carried at least six inches up. Above June 1, 1980 those are requirements. Below it they describe good work that nobody was ever obliged to perform, and on a great many houses here nobody performed it. Legal then, legal now, and leaking for forty years.
A wide chimney with no cricket collects everything the slope above it carries. Water, ice, leaves and roofing grit stack up against the upslope face, sit there, and work in under the counterflashing joint. That is your leak, and it is why re-caulking the same chimney every three years never actually ends. The detail is wrong, not merely tired. You are paying to reseal a design flaw.
So our quote on a pre-1980 chimney usually says cricket rather than sealant. We frame a saddle behind the chimney, deck it, flash it with lapped or soldered metal tied into the step flashing on both sides, and cut a proper reglet for the counterflashing into a mortar joint instead of surface-mounting it with a bead of caulk. A saddle sheds water. Caulk only slows it down.
We look hard at the masonry before we quote any metal. If the crown is cracked through, the top courses are spalled and the mortar rakes out with a key, then flashing a chimney that is admitting water through its own brick is money thrown away. We will tell you to get the masonry addressed first and come back after it is done. Metal over failing brick is a very expensive bandage.
Where a chimney is abandoned, the honest option is often removal down below the roof line with a framed and decked patch over it. That costs less than a rebuild, deletes the detail that has been leaking, and takes a maintenance item off the house permanently. Not everyone wants to lose the profile from the street, and that is a fair reason to keep it. We will build whichever one you choose.
Our licensed and insured team brings the right materials and equipment to every job — No. 15 asphalt-impregnated felt underlayment, ASTM D4869 Type I underlayment felt, ring-shank nails set into 1x6 board sheathing, No. 28 gauge open-valley sheet metal, 50-pound roll roofing in closed valleys, step flashing and masonry chimney crickets — and backs the work with a written workmanship warranty. We serve Janesville and nearby communities including Beloit, Edgerton, Milton, Evansville.
What We Handle
Everything our chimney flashing in Janesville covers
One crew, one point of contact, and the full range of chimney flashing work in Janesville, WI. If it is on this list we do it in house rather than handing it to a subcontractor:
- chimney flashing repair Janesville
- chimney cricket
- step flashing chimney
- counterflashing reglet
- chimney leak repair
- masonry crown repair
- chimney saddle framing
- abandoned chimney removal
- chimney flashing replacement
- brick chimney water damage
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Janesville 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 No. 15 asphalt-impregnated felt underlayment, ASTM D4869 Type I underlayment felt, ring-shank nails set into 1x6 board sheathing, No. 28 gauge open-valley sheet metal, 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 Janesville 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 south central Wisconsin 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 Janesville
Janesville Premium Roofing covers Janesville and the surrounding communities of south central Wisconsin. 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 Beloit, WI — Rock County, population 36,657
- Chimney Flashing in Edgerton, WI — Rock County, population 5,945
- Chimney Flashing in Milton, WI — Rock County, population 5,716
- Chimney Flashing in Evansville, WI — Rock County, population 5,703
- Chimney Flashing in Clinton, WI — Rock County, population 2,221
- Chimney Flashing in Orfordville, WI — Rock County, population 1,473
Start on the Janesville Premium Roofing homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Janesville Chooses Janesville Premium Roofing
- ✓We pull the assessor's construction year before we price a roof, because June 1, 1980 decides whether the state code governs your reroof or your contract has to.
- ✓Our estimates name specifications rather than adjectives: No. 15 felt or a labeled ASTM D226 Type I synthetic, four fasteners per strip shingle, a two-inch head lap.
- ✓We count existing layers by lifting shingles at the rake and a valley, and the count goes in writing before anything is sent to your insurance carrier.
- ✓We go in the attic on every inspection. Fastener rust, valley staining and packed eaves show on the underside of the sheathing long before they show on top.
The standards behind chimney flashing
Quality here is not a matter of opinion — it is written down. The chimney flashing work we do in Janesville 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 Janesville 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 Janesville, or request a quote and we'll get right back to you.