Business Details
Your Trusted Home Improvement Partner in Long Island
Alpha Windows & Siding has been dedicated to transforming homes across Long Island, Queens, Brooklyn, and the Bronx for over two decades. As a direct-source provider of premium windows, siding, and roofing solutions, we eliminate middlemen to deliver competitive pricing without compromising quality. Our team of certified professionals specializes in custom installations, ensuring every project meets exacting standards for durability and aesthetic appeal. With extensive warranties backing our products and a commitment to personalized service, we prioritize customer satisfaction at every stage. Our showroom allows clients to experience our craftsmanship firsthand, comparing features against competitors to make informed decisions.Serving the Tri-State area, including Westchester, Manhattan, Staten Island, Nassau, and Suffolk counties, we combine local expertise with industry-leading materials. Our financing options, including 0% APR, and free in-home consultations reflect our dedication to accessible, stress-free home improvement. Customer testimonials consistently highlight our meticulous attention to detail, energy-efficient results, and the transformative impact of our work on property value and comfort.
Services
Replacement Windows
Vinyl Siding
Roofing Installation
Stone Accents
Patio Doors
Highlights and features
- We offer 0% APR financing for qualified customers.
- Our team provides free in-home consultations with no-obligation estimates.
- All installations come with extensive, long-term warranties.
- Direct-source pricing eliminates middlemen for competitive rates.
- Locally based crews ensure personalized service across the Tri-State area.
What people say
Exceeded expectations
Professional installers
Extensive warranties
Increased home value
Prompt service
Services
Replacement Windows
Alpha's custom replacement windows combine energy efficiency with aesthetic appeal. Our trained professionals install durable, insulated units that reduce heating and cooling costs while enhancing home value. Each project includes personalized style and color selection to match architectural designs.
Vinyl Siding
Our Tri-Lock Vinyl Siding offers 24 color options and six styles for lasting curb appeal. The exclusive interlocking design prevents bulging seams while resisting weather damage. Installation transforms home exteriors with low-maintenance durability and modern aesthetics.
Roofing Installation
Alpha's premium roofing systems feature reinforced shingles with 50% greater durability than standard products. Our installations include fire-resistant materials and advanced sealing technology to withstand extreme weather conditions while improving home energy efficiency.
Stone Accents
Versetta panelized stone and Eldorado Stackable Stone add architectural distinction to home exteriors. These lightweight, durable accents install seamlessly with vinyl siding to create custom facades that enhance property value and visual appeal.
Patio Doors
Our insulated sliding glass doors feature reinforced frames and multi-point locking systems for security and energy efficiency. Installation improves home access while reducing drafts and condensation through advanced weather-stripping technology.
Questions
What areas do you service?
We serve Long Island, Queens, Brooklyn, Bronx, Westchester, Manhattan, Staten Island, Nassau, Suffolk, and the greater Tri-State area.
Do you offer financing options?
Yes, we provide 0% APR financing for qualified customers on all home improvement projects.
Are free estimates available?
We offer complimentary in-home consultations and detailed project estimates with no obligation.
What warranties do you provide?
Our products include extensive warranties covering materials, workmanship, and performance for long-term peace of mind.
How long does installation take?
Most window and siding projects complete within 1-3 days, depending on property size and complexity.
Can I see product samples?
Visit our Massapequa showroom to explore full product lines and compare materials in person.
Videos
Reviews (1)
Kt Nguyen
Jun 24, 2018
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After researching and getting bids from multiple contractors we went with Alpha. Best decision I have ever made. These guys are top notch. The 5-man crew showed up everyday before 7:30am worked tirelessly til 6pm. They got the whole job done in 4 days, ahead of schedule. And the house came out beyond what we had expected. Would recommend these guys to all the local Roslyn people who are looking to re-do their siding. Thanks Peter, Billy, and Gary for putting together such a fine crew. These guys are true craftsmen.
