
Turn Your Basement Into Your Best Room
Add living space without adding on. We turn unfinished Rhode Island basements into warm, dry, finished rooms your family will actually use.
Our Process
Every basement project starts with a walkthrough to check for moisture, ceiling height, and code requirements like egress. If we find any dampness, we take care of waterproofing first, whether that means sealing walls, improving drainage, or installing a sump pump, so your finished space stays dry for years to come. From there, we plan the layout around how you’ll use the room, handle permits, and build in stages, so you always know what’s next and when your new space will be ready.
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We check for moisture, ceiling height and code items like egress, and talk through how you want to use the space.
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If we find dampness, we fix it first by sealing walls, improving drainage or installing a sump pump, so the finished space stays dry.
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We plan the room around how you’ll live in it: a family room, bedroom, bathroom, home office or storage.
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We pull the permits and schedule every inspection, so the work is done to code and on record.
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Framing, electrical, plumbing, insulation, drywall, then finishes. You always know what’s next and when your space will be ready.
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We walk the finished space with you and make sure every detail is right before we call it done.
Walkthrough
We check for moisture, ceiling height and code items like egress, and talk through how you want to use the space.

The Most Affordable Square Footage You Already Own
Your basement is the most affordable square footage in your home. It’s already framed, already under a roof, and just waiting to be finished. Coastal Construction Management handles every stage of basement remodeling in Newport and across Rhode Island, from moisture control and framing to flooring, lighting, and the final coat of paint.
Why Coastal Basements are different:
- Newport County’s coastal climate keeps moisture levels high year-round, so every material we use is chosen to resist dampness
- Many Rhode Island homes sit on stone or block foundations that need careful prep and sealing before any finishing begins
- We build moisture protection into the walls and floors from the start, not as an afterthought
- The result is a finished basement that stays comfortable and mold-free for years, not just the first season
Waterproofing Comes First
A finished basement is only as good as the dry space behind it. Before we frame a single wall, we look for signs of moisture, like dampness, efflorescence, musty odors, or past water stains. Then we fix the source, whether that means sealing foundation walls, adding interior drainage, or installing a sump pump. In coastal Rhode Island, where high water tables and humidity are common, this step protects your investment and keeps your new space comfortable year-round.
Signs we look for
Tap a sign to see what it looks like.
How we fix the source
- Seal the foundation walls
- Add interior drainage
- Install a sump pump
Dry first, then we finish.
Frequently Asked Questions
Straight answers about finishing a basement in coastal Rhode Island.
We give a detailed, itemized estimate after an on-site visit. The price depends on the size of the space, ceiling height, any waterproofing it needs, and what you’re adding, like a bathroom, bedroom or wet bar.
In most cases, yes. We handle permitting as part of every project and schedule all the inspections, so the work is done to code and on record when you sell.
Often, yes. We find the source of the moisture first and fix it before any framing goes up, whether that means sealing walls, adding interior drainage or installing a sump pump.
It depends on the size and what’s included. Before work starts, we lay out a schedule for each stage, from waterproofing and framing to drywall and finishes, so you always know what’s next.
Yes. Our licensed plumbing partners run the supply and drain lines. If the drains sit below the main sewer line, we add a pump system so everything flows out properly.
Yes, as long as it has a safe way out. Code requires an egress window or door large enough to climb out of in an emergency. We check this during the walkthrough and can cut in a new egress window if needed.
Most finished living space needs about 7 feet, with some allowance under beams and ducts. We measure during the walkthrough and plan soffits and lighting so the room feels open.
Luxury vinyl plank and tile handle moisture best. Engineered hardwood and carpet work well in drier, finished spaces. We steer clear of solid hardwood below grade.
A dry, permitted, well-finished basement adds usable living space, which buyers notice. Having the permits and inspections on record matters when it’s time to sell.