Roofing crew installing shingles on a house in Nesconset, New York

Alec's Construction repairs and replaces roofs in Nesconset (11767) — leaks traced to the cause, flashings and valleys, wind and ice-dam damage, and full tear-off replacements — working out of the yard in East Patchogue. Repairs and sheet-metal work run straight through the winter; replacements go on with the warm days.

Roofs in Nesconset

Nesconset is inland in the middle of the Town of Smithtown, on high wooded ground with no tidal water, and its roofs live under trees. The streets off Smithtown Boulevard and Lake Avenue are 1960s and 70s colonials, splits and high ranches on half-acre lots, and the oaks and tulip trees left when those lots were cut now tower over the roofs. That means shade on every slope, leaves in every valley, and a real chance of a falling limb whenever the ground is saturated and a northeast gust hits. The high ranches have shallow roof pitches that hold debris and moisture longer than a steep roof. The colonials have tall gable ends and two-storey roofs that are hard to see from the ground. When water does get in, it soaks the attic insulation first and stays hidden there.

What We Look at First in Nesconset

In Nesconset we go into the attic early. The insulation under a slow leak absorbs the water and hides it, so a damp spot or a stain on the sheathing from inside often shows a problem the shingles do not. Then onto the roof, starting with the slopes under the heaviest canopy and the valleys those trees feed. On high ranches we check the shallow slopes for moss and worn granules. Permanent work files with the Town of Smithtown on Main Street.

Big Trees Over Big Roofs in Nesconset

The wooded lots in Nesconset put tall oak, tulip and hickory over two-storey roofs, and the roofs are larger and more cut-up than the Island average — hips, valleys, dormers, chimneys and long eaves. Every one of those intersections is a flashing detail, and every valley under a big tree fills with leaves twice a year.

Most leaks on these houses are at the intersections, not in the field of the roof. A packed valley overflows sideways under the shingles; a chimney flashing that was roof-cemented instead of counterflashed lets go a little more every winter; a skylight curb rots from the outside in. Tracing the leak to the actual entry point is the first job, and it is often nowhere near the stain.

Trees that tall also shade the north slopes. Snow sits there, the attic below melts it, and it refreezes at the cold eave. Ice-and-water membrane at the eaves and valleys is standard on a replacement here, and the attic ventilation gets corrected at the same time.

Failed step flashing and old roof cement where a chimney meets the shingles

Leaks Are Flashing Problems Until Proven Otherwise

The open field of a roof almost never leaks. Water gets in where the roof meets something else — a chimney, a wall, a dormer, a valley, a vent pipe, a skylight — and on a great many Long Island roofs that flashing was done once, failed, and has been covered in roof cement ever since. Roof cement goes brittle within a few winters and hides the failure while the water keeps getting in.

So a repair starts by finding where the water actually enters, which is often several feet from where the stain shows, and fixing the flashing there. Repairs, flashing and sheet-metal work run all winter. Full asphalt replacements go on the warmer days, and shingles laid in the cold are hand-sealed so they hold in the first wind.

Permits in Nesconset

Nesconset files with the Town of Smithtown at Town Hall on Main Street in Smithtown. Roof replacement is permitted work in most of Suffolk, and the limit on shingle layers decides whether the old roof has to come off — on our jobs it comes off regardless. We file the permit.

Alex walks the house in Nesconset, photographs what he finds and gives you a written scope in the order the work has to happen — whether or not you hire us. Call (631) 312-7441 to set up a time.

Frequently Asked Questions

My Nesconset high ranch has a fairly flat roof under big oaks. Why is it growing moss?

Because shade and a low pitch work together. On a shallow roof, water and leaves drain slowly, and under a full oak canopy the surface stays damp long enough for moss to take hold. Moss holds more water, lifts shingle edges and lets wind get under them. Clearing the debris, cutting back the limbs that shade the roof most and fitting zinc or copper strips near the ridge slows it down. If the shingles are already curling, it is time to replace them.

Can a roof in Nesconset be replaced in winter?

Repairs, flashing and sheet-metal work run all winter. A full asphalt replacement is a warmer-day job, because the seal strip on the shingles needs warmth to bond; when a replacement has to go on in the cold, every course is hand-sealed so it holds in the first wind. We schedule around the forecast.

Should I repair or replace my roof in Nesconset?

If the roof is sound and the leak is a flashing or a valley, repair it. If the shingles are curling, losing granules and on a second layer, a repair buys a season and replacement is the honest answer. Alex photographs the whole roof and tells you which it is.

Who issues the permit for roofing work in Nesconset?

Nesconset files with the Town of Smithtown at Town Hall on Main Street in Smithtown. Roof replacement is permitted work in most of Suffolk, and the limit on shingle layers decides whether the old roof has to come off — on our jobs it comes off regardless. We file the permit.

Related Guides

Work With Alec's Construction

This page is written by the crew that does the work. See Alec's Roofing service — tear-offs, repairs, flashing and storm damage across Suffolk County. One crew from the first walkthrough to the last inspection.

Also in Nesconset through the cold months: Seamless Gutters and Attic Insulation.

Also Serving Nesconset

Talk to Alec's Construction About Roofing in Nesconset

We come out, look at the house, photograph what we find and put a written scope in your hand. No pressure, no obligation. Working across Suffolk County since 2018.

Or call (631) 312-7441

No cost, no obligation. We reply the same day.