Welcome to Sivachco Construction, Bethpage’s trusted leader in exterior remodeling and renovations. We specialize in transforming the look, value, and durability of homes across Nassau and Suffolk County. From durable new siding and custom decks to flawless masonry and energy-efficient windows, our mission is to deliver skilled craftsmanship and lasting results that enhance your home’s curb appeal. As a fully licensed, insured, and A+ BBB Rated general contractor, owner David Reyes personally ensures every project meets our highest standards of quality.
Siding Installation & Repair
As a top siding contractor on Long Island, we install a wide range of high-quality materials designed to withstand our coastal climate. New siding not only beautifies your home but also dramatically improves energy efficiency.
Siding Repair: We expertly fix cracks, warping, and weather damage to restore your home’s protective barrier.
Vinyl Siding: A durable, low-maintenance, and cost-effective option available in countless colors and styles.
Fiber Cement Siding (James Hardie): Highly resistant to fire, rot, and pests, offering superior longevity and a classic, upscale look.
Wood Siding: Provides a timeless, natural aesthetic with options like cedar shakes and clapboard.

Ready to start planning? Request your FREE, detailed estimate today!
Call Us at (516)406-2152
Custom Decks & Patios

Extend your living space outdoors with a beautifully designed deck or patio. We build custom outdoor spaces perfect for entertaining, relaxing, and enjoying Long Island’s seasons.
Paver Patios & Walkways: Create elegant and durable hardscapes with a variety of stone and paver options.
Composite Decking (Trex, Azek): Ultra-durable, low-maintenance decking that resists fading, staining, and mold.
Pressure-Treated Wood Decks: A classic and affordable option for a strong, long-lasting deck.
Window & Door Replacement
Upgrade your home’s energy efficiency, security, and appearance with new, professionally installed windows and doors.
Sliding & Patio Doors: Seamlessly connect your indoor and outdoor spaces.
Energy-Efficient Windows: Lower your heating and cooling bills with high-performance double or triple-pane windows.
Entry Doors: Make a stunning first impression with a new, secure, and beautiful front door.


Why Choose Sivachco for Your Exterior Project in Nassau & Suffolk County?
Choosing the right contractor is the most important decision you’ll make. For homeowners in Bethpage and across Long Island, Sivachco Construction is the proven, reliable choice.
No Surprises, Just Solutions: We provide clear, detailed estimates and keep you informed every step of the way.
We Are Local Experts: We live and work here. We understand Long Island’s specific building codes, weather challenges, and architectural styles.
Fully Licensed & Insured: We carry all necessary licenses for Nassau County and Suffolk County, giving you complete peace of mind.
A+ Rated by the BBB: Our commitment to quality and customer satisfaction is independently verified.
Owner on Every Job Site: David Reyes personally oversees every project to guarantee the quality of work and maintain clear communication.
Frequently Asked Questions About Exterior Remodeling
Q: What exterior remodeling services do you offer on Long Island?
A: We specialize in projects that enhance your home’s curb appeal and functionality. Our primary services include siding installation and repair, custom deck and patio construction, and professional window and door replacement. We serve as your trusted general contractor for all exterior upgrades.
Q: How much does new siding cost in Nassau or Suffolk County?
A: The cost of a siding project varies widely from $17,000.00 to over $30,000.00 based on the size of your home and the materials you choose (e.g., vinyl, wood). We provide a detailed, no-obligation estimate after our initial consultation, giving you a clear and accurate price for your specific project with no hidden fees.
Q: What type of decking material is best for the Long Island climate?
A: We highly recommend composite decking (from brands like Trex) for Long Island homes. It’s incredibly durable, low-maintenance, and resistant to the moisture and salt air common in our coastal climate. We also offer classic pressure-treated wood options to fit different budgets and styles.
Q: Will new windows and doors really help lower my energy bills?
A: Absolutely. Modern, energy-efficient windows and doors are one of the best investments you can make. They prevent drafts and improve insulation, which can significantly reduce your heating and cooling costs throughout the year while making your home more comfortable.
Q: Do I need a permit for a new deck on Long Island?
A: In most cases, yes. The majority of towns in Nassau and Suffolk County require a permit for building a new deck or significantly altering an existing one. As your general contractor, we handle the entire permitting process for you, ensuring everything is built to code.
Q: How long does a typical exterior remodeling project take?
A: The timeline depends on the scope of work. A straightforward siding replacement might take 1-2 weeks, while a custom deck could take a similar amount of time. We will provide you with a detailed project schedule before we begin so you know exactly what to expect.
Get Your Free, No-Obligation Exterior Remodeling Estimate Today!
Ready to boost your curb appeal and protect your home? Sivachco Construction is ready to help. Contact us today to schedule a complimentary consultation and receive a detailed, transparent estimate for your exterior remodeling project.
Ready to start planning? Request your FREE, detailed estimate today!
Call Us at (516)406-2152
Sivachco Construction is committed to bringing your vision to life. Explore our flexible financing options for your next renovation project.

