Roofing crew installing shingles on a house in Lake Ronkonkoma, New York

Alec's Construction repairs and replaces roofs in Lake Ronkonkoma (11779) — 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 Lake Ronkonkoma

Lake Ronkonkoma is the hamlet around the lake, split between the Towns of Brookhaven, Islip and Smithtown, and its roofs come in two kinds. On the lake side are the old summer bungalows from the resort era — small houses close together, converted to year-round on shallow foundations, with low roofs that have been patched and added onto. On the streets off Portion Road and Rosevale Avenue are 1950s to 70s ranches and capes under pitch pine and oak. The pines are what take roofs down here: shallow roots in sandy ground, and after a long rain they fall whole. The lake itself has no outlet and keeps rising for days after a storm, so the low lake-shore houses stay damp, and so do their attics. Roofing here means working on small houses in tight spaces, and knowing which of three towns the address belongs to.

What We Look at First in Lake Ronkonkoma

On the old Lake Ronkonkoma bungalows we plan the site before we plan the roof. These houses can be a few feet from the next one, so we decide where the dumpster goes, how debris comes down and what gets covered next door before tear-off. Then we check the deck, which on these old cottages is often patched. Before anything is filed we confirm whether the address is in Brookhaven, Islip or Smithtown.

Pines, Oaks and Roofs on Sandy Ground

In Lake Ronkonkoma the roof's biggest threat sits next to it. Pitch pine and oak stand over ranches and capes on sandy ground, and after a wet week a strong gust can bring a whole tree or a heavy limb onto the roof. The rest of the time the trees work slowly: needles and leaves pack the valleys and hold water against the shingles, limbs scrub the granules off the surface, and shade keeps moss and damp on the north slope.

So a roof inspection here looks up as well as down. Overhanging limbs get flagged, valleys get cleared and checked for wear, and the shaded slopes get a closer look for soft decking. A valley that has been holding wet needles for years is often where the leak is.

The houses are mostly simple gable roofs — ranches, capes, hi-ranches — which makes a full replacement straightforward when it is due: tear-off to the deck, sheathing repaired, ice-and-water at the eaves and valleys, new flashings, and ventilation balanced so the attic stays dry.

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

Repair or Replace, Honestly

If the roof is sound and the leak is a flashing or a valley, the right answer is a repair, and the roof has years left in it. If the shingles are curling, shedding granules and already on a second layer, a repair buys a season and replacement is the honest answer. Alex goes up, photographs every flashing, the valleys and the field, and you get the photographs either way.

A replacement here is a tear-off to the deck. The sheathing gets checked and renewed where it is soft, ice-and-water membrane goes at the eaves and valleys, flashings are replaced rather than reused, and the attic ventilation is balanced so the new roof is not cooked from below or iced at the eave.

Permits in Lake Ronkonkoma

Lake Ronkonkoma is split between the Towns of Brookhaven, Islip and Smithtown around the lake, and the three do not share a building department; we confirm which governs the address before anything is filed. 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 Lake Ronkonkoma, 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 Lake Ronkonkoma bungalow is a few feet from my neighbour's house. How do you tear off a roof without damaging theirs?

We protect their side first. Tarps over the neighbour's roof edge, windows and plantings, plywood where debris could hit, and a chute or tarp run so old shingles go straight into the dumpster instead of over the side. On tight lots we tear off in sections and clean up as we go. We talk to the neighbour before we start so nothing surprises them, and we use a magnet sweep on both yards at the end for nails.

Does a new roof fix ice dams on a Lake Ronkonkoma house?

Not by itself. Ice dams come from attic heat melting snow that refreezes at the cold eave. Ice-and-water membrane at the eaves limits the damage, but the cure is air sealing and ventilation in the attic so the roof deck stays cold. We look at the attic on every roof walkthrough.

Can a roof in Lake Ronkonkoma 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.

Who issues the permit for roofing work in Lake Ronkonkoma?

Lake Ronkonkoma is split between the Towns of Brookhaven, Islip and Smithtown around the lake, and the three do not share a building department; we confirm which governs the address before anything is filed. 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 Lake Ronkonkoma through the cold months: Seamless Gutters and Attic Insulation.

Also Serving Lake Ronkonkoma

Talk to Alec's Construction About Roofing in Lake Ronkonkoma

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.