The Best Window Installers in Islip Terrace, NY

Compare the highest-rated windows professionals in Islip Terrace, New York. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Window Universe of Long Island

4.8
(200 reviews)
Verified

A leading window replacement company on Long Island, specializing in high-quality, energy-efficient vinyl windows. They are known for their professional installation teams, strong customer service, and managing the entire process from consultation to completion. They serve both residential and commercial clients across Suffolk County.

325 Middle Country Rd, Suite 8, Smithtown, NY 11787

Specialties & Features

Energy-efficient windows
Full window replacement
Custom window solutions

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Window Nation of Long Island

4.7
(150 reviews)
Verified

Part of a larger, well-regarded company, the Long Island branch brings extensive resources and expertise to the local market. They offer a wide selection of window styles and materials, focusing on replacement and new construction. They are recognized for their free, in-home consultations and lifetime warranty.

135 Pinelawn Rd, Suite 240S, Melville, NY 11747

Specialties & Features

Residential window replacement
New window installation
Security windows

Business Information

Years in Business:10 years
Licensed:Yes
Insured:Yes
#3

Renewal by Andersen of Long Island

4.6
(250 reviews)
Verified

As a flagship brand for Andersen Windows, this provider offers a premium, full-service experience. They are known for their high-performance custom windows, which are manufactured specifically for each home. While positioned at a higher price point, they are a top choice for homeowners seeking superior quality, energy efficiency, and a seamless service experience from measurement to installation.

255 Knickerbocker Ave, Bohemia, NY 11716

Specialties & Features

Custom window solutions
Energy-efficient windows
Window repair services

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes

Why These Are the Top Windows Contractors in Islip Terrace

The window service market in and around Islip Terrace, NY, is competitive and service-oriented, characterized by a high density of established local and regional contractors. Homeowners in this area have access to a wide range of options, from premium full-service providers like Renewal by Andersen to strong regional specialists like Window Universe and Window Nation. The market demand is heavily influenced by the age of the local housing stock and the desire for improved energy efficiency due to Long Island's climate. Typical pricing is moderate to high, reflecting the quality of materials and the skilled labor market. A full-window replacement project for a standard home can range from $7,500 to $20,000+, depending on the number of windows, materials chosen (vinyl, composite, wood), and the complexity of the installation. Reputation, warranties, and local licensing are critical factors for homeowners when selecting a provider in this market.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Islip Terrace regulations and climate

Frequently Asked Questions About Windows in Islip Terrace

Get answers to common questions about windows services in Islip Terrace, New York.

1What is the typical cost range for a full window replacement in an Islip Terrace home?

For a standard double-hung vinyl window replacement in Islip Terrace, homeowners can expect to pay between $600 and $1,200 per window, including professional installation. The total project cost depends on the number of windows, the size, the material (vinyl, wood, fiberglass), and the brand/energy efficiency rating. Long Island's higher labor and material costs generally place our area at the mid-to-upper end of national averages, but investing in quality, energy-efficient windows is crucial for managing heating costs during our cold, windy winters and humid summers.

2When is the best time of year to schedule window installation in Islip Terrace?

The ideal seasons are late spring (May-June) and early fall (September-October). These periods typically offer mild, dry weather, which is optimal for installation and allows for proper sealing. Scheduling in summer can be busy, and winter installations, while possible, require extra precautions from installers to protect your home from the cold and potential precipitation common in our coastal climate. Planning several months ahead for these prime seasons is highly recommended.

3Are there specific building codes or permits required for window replacement in Islip Terrace?

Yes, the Town of Islip requires a building permit for window replacements if you are changing the window's size, shape, or location, as this affects the home's structure. For a simple like-for-like replacement (same size and opening), a permit is often not required, but this should always be verified with the Islip Town Building Division. Furthermore, all installations must comply with New York State's stringent energy codes, which mandate specific performance ratings to ensure efficiency.

4How do I choose a reliable window installation contractor in the Islip Terrace area?

Always choose a contractor who is licensed, insured, and has a verifiable physical address on Long Island. Ask for references from recent jobs in Suffolk County and check online reviews specific to local service. A reputable Islip Terrace installer will provide a detailed, written estimate, explain the products suitable for our coastal environment (e.g., windows with high DP ratings for wind resistance), and will handle the permit process if required. Avoid door-to-door sellers with "today-only" discounts.

5What are the most important window features for Islip Terrace's climate?

Given our climate—with nor'easters, high humidity, and significant temperature swings—look for windows with a high Design Pressure (DP) rating (40+) for wind and impact resistance, low-E glass with argon gas fill for superior insulation, and warm-edge spacers to prevent condensation. For homes near the Great South Bay, consider impact-resistant glass options due to stricter building codes in coastal zones. These features combat drafts, reduce energy bills, and improve comfort year-round.