Siding Contractors in Islip, NY

Alec's Construction replaces and repairs siding in Islip, Suffolk County — vinyl, fibre cement and cedar, with the housewrap, flashing and sheathing repair behind it — working out of the yard in East Patchogue. Siding runs through our winter on the days above freezing, and fibre cement and cedar do not mind the cold at all.

Siding in Islip

Islip hamlet siding takes salt off the bay on the south side and shade and moisture from the mature trees on the north, and the two failures are different. Bay-side, the sun and salt chalk and fade vinyl and eat the fasteners on older aluminum. Tree-side, the north elevations grow algae and the wood siding on the older colonials stays damp long enough to rot at the bottom courses. The old colonials near the water are the houses where the siding question is really a rot-and-flashing question.

The Wall Behind the Siding Is the Job

Siding is a rain screen. Water gets behind every kind of siding there is — wind-driven, capillary, at every joint and every opening — and what keeps the wall dry is the water-resistive barrier behind it and the way the windows and doors are flashed into that barrier. On houses sided before the 1990s there is frequently nothing back there but building paper that failed decades ago, or bare sheathing.

A re-side is the one time the wall is open. The sheathing gets inspected and repaired where it is soft, a proper housewrap goes on, the openings get flashed in the right order — sill pan, jambs, head — and the siding goes on top as the finish. Skipping that to save a day is how a new siding job rots the wall behind it.

Materials, Honestly

• Vinyl — least cost, no maintenance, installed loose to move with temperature. Brittle in the cold, so winter installs are done with care and not on the coldest days.
• Fibre cement — holds a crisp edge and a painted finish, takes a colour change later, does not chalk or corrode. Reads as wood from the street. Fine in any weather.
• Cedar — what the older houses were built with. Beautiful, and it needs the maintenance it was always going to need. Repair in kind where it is mostly sound.

Permits in Islip

Islip files with the Town of Islip, whose published permit guidance treats finish work differently from anything touching water, gas or electric. Siding replacement in kind is usually maintenance; where sheathing is replaced or openings change, it becomes permitted work, and we file.

Free walkthrough in Islip. Alex looks at every elevation, probes the soft spots, photographs the openings, and you get a written scope and the photographs whether or not you hire us.

Frequently Asked Questions

What siding holds up best on the bay side of Islip?

Fibre cement, honestly. It does not chalk, it does not fade the way vinyl does in south-facing sun, it does not corrode, and it takes paint if the colour ever needs to change. On the Islip bay side the sun and the salt are hard on everything, and the fastener corrosion on old aluminum siding is what we see most. Whatever the material, the housewrap and the flashing behind it are what keep the wall dry, and on a re-side that is where the money should go first.

Can siding be installed in winter?

Yes, on the days that allow it. Fibre cement and cedar do not care about the cold. Vinyl gets brittle below about 40°F and has to be cut and nailed with more care — it is installed loose to move with temperature, and a cold-day install has to leave the right gap so it does not buckle in July. We work the winter calendar around the forecast and we do not hang vinyl on the coldest days.

What is behind the siding that matters?

The housewrap and the flashing. The siding is a rain screen — water gets behind every siding there is — and what keeps the wall dry is a continuous water-resistive barrier with the windows and doors flashed into it in the right order. On houses sided before the 1990s there is often nothing back there. A re-side is the one chance to fix that, and it is where the money should go first.

Vinyl or fibre cement?

Vinyl costs less, needs nothing, and looks like vinyl. Fibre cement costs more, holds a crisp edge and a painted finish, takes a colour change later, and reads as a wood-sided house from the street. Both are honest choices. The wrap and the flashing behind them are identical, and that is the part not to save on.

Related Guides

• Siding in Ronkonkoma, NY
• Siding in Commack, NY
• Siding on Long Island
• Windows and Doors on Long Island
• Roofing on Long Island

Also Serving Islip

• ADUs in Islip — accessory apartments and grants
• Attic Insulation in Islip — air sealing, baffles and R-49 depth
• Basement Finishing in Islip — egress, ceiling height and moisture
• Bathroom Remodeling in Islip — full gut renovations
• Chimney Repair in Islip — repointing, crowns, caps and flashing
• Driveway Paving in Islip — blacktop, resurfacing and repairs
• Emergency Roof Repair in Islip — tarping, leaks and storm response
• Garage Conversion in Islip — turning the garage into living space
• Gutter Installation in Islip — seamless gutters, fascia and drainage
• House Painters in Islip — exteriors while the fall window holds
• Storm Damage & Insurance Restoration in Islip — emergency tarping and the claim
• Interior Painting in Islip — the right work for the cold months
• Kitchen Remodeling in Islip — cabinets, counters and layout
• Masonry & Pavers in Islip — patios, walkways and retaining walls
• Roofing in Islip — tear-offs, repairs and storm damage
• Windows & Doors in Islip — insert and full-frame replacement

Work With Alec's Construction

This guide is written by the crew that does the work. See Alec's Siding service — James Hardie, vinyl and cedar with the rot behind it repaired first. Licensed and insured on Long Island, one crew start to finish, free walkthrough and a written estimate inside 48 hours.

Booking the cold months now: we also handle Roofing and Painting.