Finished basement remodel in Sterling, NY, by Rexyco LLC, featuring recessed lighting and carpet.

Custom Finished Basements in Central New York

Maximize Your Footprint. Warm, Solid & Built to Last.

Your basement is likely the largest untapped resource in your entire home. Right now, it might just be storing old boxes, gathering dust, or feeling cold and damp. But with proper moisture management, warm thermal barriers, and smart layout design, your lower level can easily become the most comfortable living space in the house.

At Rexyco, we take a builder-first approach to basement finishing across Central NY—prioritizing structural integrity, layout functionality, and technical system rough-ins (like concrete slab plumbing, vapor barriers, and egress framing) before focusing on cosmetic finishes like drywall or flooring. No superficial cover-ups, no cold floors, and no corner-cutting. Whether you're looking for a full lower-level living suite, a custom wet bar, or a dedicated home gym, we engineer spaces that feel like true, warm extensions of your main house.

Explore our Renovation Gallery to see real Central NY basement transformations, or schedule your consultation.

Request a Basement Consultation

Real Livable Space Starts Below the Surface

Unlocking warm, functional square footage right under your feet.

Finishing a basement isn't as simple as slapping drywall onto concrete. In Upstate New York, seasonal freeze-thaw cycles and ground moisture mean a lower-level build must be engineered correctly before any finished materials go in.

We don't frame directly against bare foundation walls. We evaluate your foundation, install continuous thermal insulation and vapor barriers, address overhead mechanical ductwork, and ensure proper ventilation so your lower level stays warm, dry, and energy-efficient year-round.

Full Overhauls & Targeted Lower-Level Upgrades

Home theater renovation by Rexyco LLC, featuring a large screen, projector, and leather seating.

Whether you want an open recreation room for the kids or a full subterranean guest suite, we handle every level of lower-level renovation:

Custom Layouts & Framing

Creating functional floor plans for family rooms, home theaters, quiet offices, or dedicated gym spaces.

Basement Bathrooms & Wet Bars

Concrete slab saw-cutting, plumbing rough-ins, custom wet bars, and lower-level full baths built using 100% waterproof Wedi shower systems.

Wet Bar Cabinets & Tops

Installing high-end bar cabinetry in partnership with Cabinet Styles, paired with quartz or granite bar tops fabricated by Granite International.

Thermal Insulation & Moisture Protection

Installing continuous vapor barriers and rigid foam/mineral wool insulation to stop cold ground dampness and prevent condensation behind walls.

Durable Moisture-Resistant Flooring

Laying down luxury vinyl plank (LVP) or insulated subfloor systems engineered for ground contact and heavy foot traffic.

Egress Windows & Concrete Cutting

Saw-cutting concrete foundation walls to install code-compliant egress windows for safe, legal basement bedrooms.

Ceilings & LED Lighting

Installing drywall or accessible drop ceilings paired with modern LED recessed lighting to make lower levels feel bright and open.

The Rexyco Process

We keep your home clean, keep you in the loop, and get the job done right.

A basement build covers a lot of mechanical ground, so we keep construction organized, safe, and transparent:

1.) On-Site Foundation Inspection:

We evaluate your foundation walls, inspect overhead ductwork and plumbing runs, check head clearance, and discuss how you want the space to function.

2.) Scope & Material Selection:

We lock in the floor plan, electrical layouts, and material specs—working with local partners like Cabinet Styles for bar designs—so you know exactly what to expect.

3.) Framing & Technical Rough-Ins:

We install thermal vapor barriers, frame out walls, saw-cut concrete for plumbing as needed, run electrical lines, and pass required town rough inspections.

4.) Finishing & Clean Delivery:

We hang drywall, lay durable flooring, trim out baseboards, maintain containment dust barriers daily, and hand back a warm, clean space ready for furniture.

Frequently Asked Questions

Do you take on partial basement projects, or do you only do full basement builds?

We can handle both! While we love building complete lower-level living suites from scratch, we also take on targeted partial projects—such as framing and insulating an open rec room, adding a basement bathroom, framing out a home office, or cutting and installing an egress window.

How do you keep a finished basement from feeling cold or damp?

Insulation and continuous air/vapor sealing are essential. We never frame directly against bare concrete without a continuous moisture barrier and insulation layer. This prevents condensation behind walls and ensures the floor stays warm underfoot. Warranty against leaks and moisture penetration.

Do I need an egress window to finish my basement?

If your plan includes a basement bedroom or dedicated sleeping area, building code strictly mandates an egress window for emergency exit. For open recreation rooms or home gyms, an egress window isn't legally mandatory, but adding one can bring in natural light and boost home value.

What is the best flooring for a Central NY basement?

Luxury Vinyl Plank (LVP) installed over a moisture barrier or insulated subfloor is the industry gold standard. It offers the look of natural wood or tile, is 100% waterproof, and handles cold ground temperatures without buckling. Carpeting can be installed as well if that is your desired flooring

Can you put a bathroom in the basement if there aren't existing pipes in the slab?

Absolutely. As general contractors, we saw-cut the concrete slab, excavate and lay new underground drain lines, tie into your main sewer stack, and pour fresh concrete over the trench before building out your bath using waterproof Wedi shower assemblies. An alternative to saw cutting would be an up-flush system that we can install as well.

Where can I see photos of your past work?

You can check out our full Renovation Gallery to see completed custom kitchens, tiled walk-in showers, finished basements, and craftsman details across Oswego, Onondaga, and Cayuga counties.

How do we get started?

Email us or give us a call. We’ll schedule a time to come out, look at your current basement, discuss your goals, and put together a clear project scope.

Custom Finished Basements in Central New York

Maximize Your Footprint. Warm, Solid & Built to Last.

Real Livable Space Starts Below the Surface

Unlocking warm, functional square footage right under your feet.

Full Overhauls & Targeted Lower-Level Upgrades

Custom Layouts & Framing

Basement Bathrooms & Wet Bars

Wet Bar Cabinets & Tops

Thermal Insulation & Moisture Protection

Durable Moisture-Resistant Flooring

Egress Windows & Concrete Cutting

Ceilings & LED Lighting

The Rexyco Process

We keep your home clean, keep you in the loop, and get the job done right.

1.) On-Site Foundation Inspection:

2.) Scope & Material Selection:

3.) Framing & Technical Rough-Ins:

4.) Finishing & Clean Delivery:

Serving Central NY Homeowners

Frequently Asked Questions

Ready to Unlock the Space Under Your Feet?

Custom Finished Basements in Central New York

Maximize Your Footprint. Warm, Solid & Built to Last.

Real Livable Space Starts Below the Surface

Unlocking warm, functional square footage right under your feet.

Full Overhauls & Targeted Lower-Level Upgrades

Custom Layouts & Framing

Basement Bathrooms & Wet Bars

Wet Bar Cabinets & Tops

Thermal Insulation & Moisture Protection

Durable Moisture-Resistant Flooring

Egress Windows & Concrete Cutting

Ceilings & LED Lighting

The Rexyco Process

We keep your home clean, keep you in the loop, and get the job done right.

1.) On-Site Foundation Inspection:

2.) Scope & Material Selection:

3.) Framing & Technical Rough-Ins:

4.) Finishing & Clean Delivery:

Serving Central NY Homeowners

Frequently Asked Questions

Ready to Unlock the Space Under Your Feet?

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