The Elmgate House family room with exposed wood beams, whitewashed brick fireplace and light floors

A carpenter’scompany.

River Rock Construction is a licensed New Jersey renovation contractor led by its owner, Peter LaDelfa — on the tools and on your job.

Our story

Renovations, remodels and repairs — regardless of size.

At River Rock Construction, we specialize in renovations, remodels, and repairs that enhance the beauty, functionality, and value of your home or business. With years of expertise in carpentry and general contracting, we bring precision, reliability, and a commitment to excellence to every project, regardless of size.

From stunning kitchen and bathroom remodels to full-scale renovations and expert repairs, we take pride in delivering high-quality craftsmanship, honest communication, and transparent pricing. Our goal is to make the construction process seamless and stress-free, ensuring results that stand the test of time.

Proudly serving New Jersey, we are only a stone’s throw away from turning your vision into reality. Let’s build something great together.

Ninth Avenue entry stair: white balusters, stained oak handrail and new wainscoting

The owner

Peter LaDelfa.

Owner · Licensed contractor · Carpenter

With a passion for craftsmanship, I founded River Rock Construction to bring high-quality renovations, remodels, and repairs to homeowners and businesses. As a licensed contractor and skilled carpenter, I specialize in transforming spaces with precision, efficiency, and attention to detail.

From simple repairs to full-scale remodels, I take pride in delivering exceptional workmanship and reliable service. Whether it’s restoring the charm of an older home or modernizing a space to fit a client’s vision, I approach every project with integrity and a commitment to excellence.

What we stand on

Three words we try to earn.

Square · plumb · level

Craftsmanship

Layout before tile, shims before trim, and joints you can run a finger over. We build the way a carpenter checks his own work.

On schedule

Reliability

We show up when we say, keep a clean site every day and tell you early if something changes — not after it has.

Materials that last

Quality

Schluter under the tile, AZEK on the exterior, Sherwin-Williams on the walls — so the finish still looks right years from now.

How we work

Four steps, start to punch list.

  1. Step 1: Walkthrough & estimate

    We visit, measure and listen. You get an itemized estimate.

  2. Step 2: Plan & selections

    Scope, schedule, materials and fixtures locked in before demo.

  3. Step 3: Build

    Licensed crew, protected home, clean site every day.

  4. Step 4: Final walkthrough

    Punch list closed together, nothing left hanging.

Partners

Preferred manufacturers & installation partners.

Moen & KohlerPlumbing fixtures
RAB, Panasonic & LevitonElectrical fixtures & controls
Schluter SystemsTile waterproofing & shower systems
ArdexTile installation & flooring prep
Sherwin-WilliamsPaint & coatings
NuCore, COREtec & MohawkLuxury vinyl flooring
FabuwoodCabinetry
Reeb & Therma-TruInterior & exterior doors
AZEKExterior trim, decking & building products

Only a stone's throw away

Let's build something great together.

Tell us about the room, the house or the repair. Peter will walk it with you and write an itemized estimate.