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

Alec's Construction repairs and replaces roofs in Lake Grove (11755) — 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 Grove

Lake Grove is an incorporated village on the north side of Lake Ronkonkoma, high and wooded, and its roofs are mostly on 1950s to 70s ranches, capes and splits on wooded lots between Middle Country Road and the lake. Mature oaks stand over one and two-storey roofs, so the usual problems are limbs, shade and leaves rather than salt or surge. The lake-shore streets on the south edge of the village are lower and wetter, and the roofs there stay damp longer. The Smith Haven Mall and the Middle Country Road strip have big flat roofs and signage that take the wind across open parking fields. What sets Lake Grove apart for roofing is not the houses but the paperwork: the village runs its own building department at Village Hall on Hawkins Avenue, so roof work here does not go through the Town of Brookhaven the way it does in the hamlets around it.

What We Look at First in Lake Grove

Before we start a Lake Grove job we confirm the address is inside the village and what its building department needs to see on a re-roof. Then the roof itself: the oaks over it, the slopes in the deepest shade, the valleys and the gutters. On the splits we look closely at the wall where the lower roof meets the upper level, because that step flashing is where splits usually leak.

Big Trees Over Big Roofs in Lake Grove

The wooded lots in Lake Grove 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

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 Grove

The Village of Lake Grove runs its own building department at Village Hall on Hawkins Avenue, and permitted work files there, not with the Town of Brookhaven. 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 Grove, 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

Does a roof replacement in Lake Grove go through the village or the Town of Brookhaven?

Through the village. Lake Grove is incorporated and runs its own building department at Village Hall on Hawkins Avenue, so any roof work that needs a filing goes there and not to Independence Hill in Farmingville. The hamlets around Lake Grove file with Brookhaven, which is why neighbours sometimes hear different things. We check what the village wants for your address before the job is scheduled.

Where does a roof in Lake Grove usually leak?

At the flashings, not the field. Chimneys, valleys, dormer walls, skylights, plumbing vents and roof-to-wall joints are where water gets in, and roof cement over an old flashing is the most common failed repair on Long Island. The entry point is often not above the stain, so the first job is tracing it.

Does a new roof fix ice dams on a Lake Grove 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.

Who issues the permit for roofing work in Lake Grove?

The Village of Lake Grove runs its own building department at Village Hall on Hawkins Avenue, and permitted work files there, not with the Town of Brookhaven. 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 Grove through the cold months: Seamless Gutters and Attic Insulation.

Also Serving Lake Grove

Talk to Alec's Construction About Roofing in Lake Grove

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.