The Best Window Installers in Mount Sinai, NY

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

#1

All Island Exteriors

4.8
(280 reviews)
Verified

A highly reputable, family-owned and operated contractor known for high-quality window replacement and installation. They emphasize energy efficiency, professional service, and use premium materials. They serve the entire Long Island area, including the North Shore where Mount Sinai is located.

225 Marcus Blvd, Deer Park, NY 11729 (Serves Mount Sinai)

Specialties & Features

Energy-efficient window replacement
Custom window solutions
New construction installation

Business Information

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

Renewal by Andersen of Long Island

4.7
(150 reviews)
Verified

As a flagship branch of a national brand, they offer a premium, full-service experience from consultation to installation. They are a top choice for homeowners seeking high-performance, custom-made windows with strong warranties and expert installation.

175 Knickerbocker Ave, Bohemia, NY 11716 (Serves Mount Sinai)

Specialties & Features

Custom window solutions
Energy-efficient windows
Full-frame replacement

Business Information

Years in Business:20 years
Licensed:Yes
Insured:Yes
#3

The Window Depot of Long Island

4.6
(90 reviews)
Verified

A local contractor that has built a strong reputation for quality and value. They focus on window and door replacement with a wide selection of energy-efficient products. They are known for their personalized service and attention to detail on residential projects.

525 Middle Country Rd, Selden, NY 11784 (Serves Mount Sinai)

Specialties & Features

Residential window replacement
Storm windows
Vinyl and composite windows

Business Information

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

Why These Are the Top Windows Contractors in Mount Sinai

** The windows market in Mount Sinai and the surrounding North Shore of Long Island is competitive and quality-focused. As an established suburban community with a mix of older classic homes and newer constructions, there is consistent demand for window upgrades. Homeowners are particularly interested in **energy efficiency** due to Long Island's climate and high utility costs, as well as **storm and impact-resistant windows** for coastal weather. The average quality of providers is high, with a significant number of established, licensed contractors. Pricing is typically at a premium compared to national averages, reflecting the higher cost of living and the demand for skilled labor and durable products that can withstand local weather conditions. A full window replacement project for a standard home can range from $8,000 to $25,000+, heavily dependent on the window material (vinyl, fiberglass, wood), brand, and the complexity of the installation. The market is not saturated with low-quality "fly-by-night" operators due to stringent local licensing requirements, favoring reputable, long-standing businesses.

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 Mount Sinai regulations and climate

Frequently Asked Questions About Windows in Mount Sinai

Get answers to common questions about windows services in Mount Sinai, New York.

1What is the typical cost range for a full home window replacement in Mount Sinai, and what factors influence the price?

For a standard full-home replacement in Mount Sinai, costs typically range from $15,000 to $30,000+, depending on the number and size of windows. Key factors include the choice of material (vinyl, fiberglass, or wood), energy efficiency ratings (crucial for our coastal climate with cold winters and humid summers), and the complexity of installation in older homes common to the area. Additional costs can arise from custom shapes, historical considerations, or upgrades to meet Suffolk County's building codes for wind resistance.

2When is the best time of year to schedule window installation in Mount Sinai, and how long does the project usually take?

The ideal times are late spring (May-June) and early fall (September-October), avoiding the peak summer humidity and the coldest winter months that can complicate sealing and curing. For a typical home, the installation itself usually takes 1-3 days, but the total project timeline from measurement to completion can be 4-8 weeks due to manufacturing lead times. Scheduling well in advance of these optimal windows is key, as local contractors book up quickly.

3Are there specific local permits or regulations in Mount Sinai I need to be aware of for window replacement?

Yes, in the Town of Brookhaven, which includes Mount Sinai, a building permit is generally required for window replacement if you are altering the structural opening. Furthermore, homes in designated flood zones or historic districts may have additional requirements. A reputable local installer will handle this permitting process, ensuring compliance with New York State energy codes and local ordinances regarding egress and safety.

4How do I choose a reliable window installation contractor in the Mount Sinai area?

Prioritize contractors who are licensed, insured, and have a strong physical presence in Suffolk County. Look for specific experience with Long Island's weather challenges, such as resistance to nor'easters and salt air corrosion. Always check for verified reviews on local platforms, ask for references from nearby past projects, and confirm they provide detailed, written estimates that include cleanup and warranty information specific to the installation workmanship.

5What are the most important energy efficiency features to consider for windows in Mount Sinai's climate?

Given our climate with cold winters and warm, humid summers, look for double or triple-pane glass with Low-E coatings to reflect heat. Argon gas fills and warm-edge spacers are essential for reducing condensation and heat transfer. Specifically, choose windows with a low U-factor (for heat loss) and a moderate Solar Heat Gain Coefficient (SHGC) to balance winter solar gain with summer cooling needs, which can significantly impact year-round energy bills.