Janesville Premium Roofing provides professional roof inspections in Janesville, WI for residential and commercial properties across south central Wisconsin. Our inspection starts in the Rock County assessor's records, not on the ladder. The year the house was built decides which findings are code violations and which are simply bad ideas, and no report that skips that step can tell the two apart.
Rock County's housing splits close to two to one. In the Census Bureau's American Community Survey table on year structure built, roughly 46,500 of the county's 70,700 housing units date from 1979 or earlier, against about 24,200 built from 1980 on. Janesville by itself lands in nearly the same place. Most roofs we look at predate the code completely. That ratio is the single most useful number anyone in this trade can carry around Rock County.
For a post-1980 house the report reads against SPS 321.28: underlayment type, fastener count, head lap, valley method, flashing at chimneys and openings, a cricket where the chimney runs wide. Anything short of that is a defect with a section number attached, and a defect with a citation is a useful thing to hand a seller, a carrier or an attorney. Section numbers change how seriously a finding gets taken.
For a pre-1980 house we check the same list, but the report says it differently. A three-nail pattern on a 1966 roof is not a violation. It is a limitation. Knowing which one you are looking at changes what you can reasonably ask a seller to fix and what a claim is realistically going to pay for. A seller can decline to fix a limitation and be entirely within their rights. A violation is a different conversation.
We walk the roof where the pitch and the deck allow it, and we go in the attic every single time. Half of what a roof is doing wrong shows on the underside of the sheathing first: rust rings around fastener tips, dark staining at a valley, daylight at a rake, insulation packed hard into the eaves where the intake air is supposed to move.
You get photographs keyed to a slope diagram, a plain list of findings, an estimate of years left with our reasoning laid out beside it, and a straight answer about whether anything needs doing this year. Sometimes that answer is nothing at all. We have written that report plenty of times and we will write it for you if it happens to be true. The report is yours to hand to whoever needs it next.
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 roof inspections in Janesville covers
One crew, one point of contact, and the full range of roof inspections work in Janesville, WI. If it is on this list we do it in house rather than handing it to a subcontractor:
- roof inspection Janesville
- pre-purchase roof inspection
- roof condition report
- remaining roof life estimate
- attic sheathing inspection
- real estate roof report
- roof age documentation
- code compliance roof review
- slope diagram report
- roof inspection cost
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 roof inspections
The difference between roof inspections that lasts and roof inspections 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 roof inspections 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.
- Roof Inspections in Beloit, WI — Rock County, population 36,657
- Roof Inspections in Edgerton, WI — Rock County, population 5,945
- Roof Inspections in Milton, WI — Rock County, population 5,716
- Roof Inspections in Evansville, WI — Rock County, population 5,703
- Roof Inspections in Clinton, WI — Rock County, population 2,221
- Roof Inspections 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 roof inspections
Quality here is not a matter of opinion — it is written down. The roof inspections 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 roof inspections 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 roof inspections free estimate in Janesville, or request a quote and we'll get right back to you.