The whole exterior of the house — roof, siding, windows and doors, gutters — by one crew, under one contract. Slate, cedar, copper and standing seam done properly, and a written assessment with photographs before anything is scheduled. We also build kitchens, additions and new homes.
NJ Home Improvement Contractor #13VH11045200 and registered NJ new home builder — licensed & fully insured
Slate · Copper · Cedar · Standing seam metal
24-hour response on active leaks, year-round
Free written assessment before any work is scheduled
Bergen County's older homes were each built to a standard. We work to it.
Roofs and windows in these towns are larger, more architecturally complex, and far more likely to be finished in slate, cedar, copper or standing seam metal than in almost any other corner of New Jersey. Replacing or restoring one is not a commodity job, and it should not be priced or handled like one.
Johannemann & Sons is a roofing and general contracting company with a deliberately narrow footprint: one county, and crews who work in their trade every day. The crew that roofs a house in October is the crew that re-sides it and replaces its windows in March — and the same company builds the kitchens, additions and new homes, with more than twenty years in residential and commercial construction behind it.
Most contractors quote whatever the supply house has on the truck. We specify to the architecture — because a 1928 Tudor and a 2019 custom do not want the same roof, and neither one wants a builder's default.
Bergen's pre-war housing stock is slate country. Full restorations, selective tile replacement, and complete re-slating with matched quarry stock — plus synthetic systems where structure or budget rules out the real thing.
Copper valleys, standing seam bays, chimney flashing, gutters and leaders. The most expensive metal on the roof and the last one you will ever pay for — most roof leaks are flashing failures, not roof failures.
Cedar moves with the season and punishes a careless install. We set it on breathable underlayment with stainless fastenings so it weathers to silver instead of cupping, splitting and curling off the deck in year seven.
Site-formed panels with concealed clips — no exposed screws, no gasket to dry out and leak in a decade. Ideal for the low-slope porch roofs, dormer cheeks and bay-window roofs that Bergen's older homes accumulate.
Roof, walls, windows, gutters and decks under one license, one insurance certificate and one project manager — and kitchens, additions and new homes run the same way. Hover any line to see the work.
Exterior work by our own crews; licensed plumbing, electrical and HVAC where a job needs them · All services →
From our Google reviews. Read more of them, or see every review on Google.
“Had Rob do our roof, job was done in a day. Really happy overall.”
“The best word to describe Rob and his company is professional. The date we had set for completion ended up being sooner than expected and under budget.”
“Not only were they prompt, professional, reliable, and knowledgeable, but they got the job done in record time. … It looks great!!”
The roofing grew out of a general contracting company, and it still is one. We build additions and new kitchens, and complete houses from the ground up — this year a custom home on the Hudson in Edgewater and a new house in Wyckoff, both pictured here as they went up.
Water does not respect the line between trades. A roof sheds it, the flashing hands it to the siding, the siding hands it to the window heads, and the gutters carry it clear of the foundation. When four contractors each own one piece, the joints between them are nobody's job.
We do the whole envelope with our own crews — tear-off and underlayment, the flashing at every penetration, housewrap and siding, the windows and doors set into it, and gutters sized to the roof that actually drains into them. One set of drawings, one schedule, and every joint the responsibility of the people who built the parts on either side of it.
Every elevation, the attic, the roof where it is safe to stand. A written scope with photographs, named materials and stated quantities — settled before a ladder goes up, not during.
Ice-and-water at the eaves and valleys, step and counter flashing at every wall and chimney, drainage-plane wrap behind the siding. This is the part that decides whether it lasts thirty years or eight.
Laid to the manufacturer's spec and the house's lines, with the warranty registered in your name at close-out and the confirmation sent to you.
Six things we commit to on every job, whether it is one leak or a whole house.
Named materials, quantities, exclusions and a fixed price — not a single number on a page.
Every estimate carries pictures of the actual condition. They are yours to keep whether you hire us or not.
The same person from the first visit to the final walkthrough. You will have their number.
Including the weeks nobody likes to show you — lead times, inspection windows, and the days lost to weather.
Re-roofing a house is usually ordinary maintenance under New Jersey's code; new sheathing, a deck, a townhouse roof, an addition or a kitchen that moves plumbing or wiring is not. When a permit is needed, we file it and book the inspections. It is part of the job, not an extra.
Older homes hide things. We price for it up front, show you what we find, and unused contingency comes off your final invoice.
We are based in Edgewater and work across the county, so we already know the housing stock before we arrive. In the borough itself: slate and shingle roof repair, roof replacement, flat roofs, gutter installation and replacement and siding in Edgewater.
All 70 Bergen County towns, page by page → · How we cover the county →
And every other municipality in Bergen County — Mahwah, Paramus, Teaneck, Rutherford, Fort Lee and the rest, each with its own page. Full service area →
Tell us what the house is and what is worrying you. We will come out, get on the roof if it is safe to, and send a written scope with photographs — free, with no obligation, and you keep the photographs whether or not you use us.
Written scope · Photographs · One project manager · Permits filed
