Interior Construction

Basement Finishing & Build-Outs in Nassau County

We are building basements people can actually live in — not just throwing sheetrock up. Moisture control, insulation done right, and layouts that actually make sense.

Basement Services

Raw Basement Finishing

Take an unfinished space from concrete and framing to a fully finished, livable floor — insulation, electrical, drywall, flooring, and trim.

Full Build-Outs

Full custom build-outs with bathrooms, bedrooms, offices, home gyms, and media rooms. Layouts that actually make sense for how you live.

Bathroom Additions

Full bathroom rough-in, plumbing, waterproofing, tile, and fixtures. Done to code and vented correctly — not an afterthought.

Egress Windows

Egress windows installed to code and drained the right way. Required for any bedroom use and important for emergency egress in any finished basement.

Moisture Control & Waterproofing

The real stuff most guys ignore. Proper drainage, vapor barriers, and insulation done right before anything gets closed up.

Framing & Insulation

Interior framing and insulation done to current code standards — not cut-corner work that fails inspection or causes moisture problems later.

Why Titan for Your Basement?

We do everything from finishing raw basements to full build-outs with bathrooms, bedrooms, offices, and gyms. The scope is whatever the space needs — and we handle all of it.

Most contractors skip or rush the part that matters most: moisture control. Long Island basements take on water. Vapor barriers, drainage, and insulation done correctly before the walls go up is what separates a basement that stays dry from one that molds out in three years.

We also focus on layouts that actually make sense. Basements are used differently than main floors — you need to think about head clearance, lighting, mechanicals, egress, and how the rooms connect. We walk through all of that before we frame a single wall.

NY Licensed

Fully Insured

Free Estimates

Permit Ready

Basement FAQ

Do you offer free basement finishing estimates in Nassau County?

Yes, Titan Project Solutions offers free estimates for basement finishing and build-outs throughout Nassau County and Long Island. Call or text (516) 557-4933 to schedule a walkthrough.

What is the difference between a basic finish and a full build-out?

A basic finish takes a raw basement to livable condition — insulation, framing, drywall, flooring, and lighting. A full build-out adds rooms: bathrooms, bedrooms, offices, gyms, media rooms. We do everything from raw to fully loaded.

How do you handle moisture in Long Island basements?

Moisture is the thing most contractors ignore or address after the fact. We focus on it before anything gets closed up — proper drainage, vapor barriers, and insulation done correctly. We are building basements people can actually live in, not just throwing sheetrock up.

Do you install egress windows for basements?

Yes. We install egress windows to code and drain them correctly with proper window well drainage. Egress windows are required for any basement bedroom use and are important for emergency exit on any finished basement.

Do you pull permits for basement finishing in Nassau County?

Yes. Basement finishing in Nassau County typically requires permits, especially when adding bathrooms, bedrooms, or electrical work. We handle permit applications and inspection coordination as part of the project.

How long does basement finishing take?

A standard basement finish runs 4 to 8 weeks depending on scope and whether plumbing is included. A full build-out with a bathroom and multiple rooms takes longer. We give you a real timeline upfront — not an optimistic one.

Can you add a full bathroom to a basement?

Yes. We handle full bathroom rough-in, plumbing, waterproofing, tile, fixtures, and finish. Our plumbing crew handles the below-grade rough-in and venting so the bathroom is done correctly from day one.

What layouts work best for finished basements?

It depends on how you plan to use the space. Open-plan layouts work well for recreation or gym use. Closed rooms with proper egress work for bedrooms. We walk through the space with you during the initial consult and help design a layout that actually makes sense for how you'll use it — not what just looks good on paper.

Basement Service Areas

MassapequaSeafordWantaghMerrickLevittownEast MeadowBellmoreFarmingdaleBethpageHicksvillePlainviewWoodburySyossetWestburyGarden CityCopiagueBabylonLindenhurstAmityvilleDeer Park

And many more towns across Nassau and Western Suffolk County.

Ready to Finish Your Basement?

Call Titan Project Solutions for a free basement estimate. We build basements people actually live in.

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