Interior construction work

Interior Services

From structural rough carpentry to detailed finishes and specialty installations, JRB LLC delivers interior scopes with the coordination, craftsmanship, and accountability needed to keep projects moving.

Interior scopes built for schedule and quality

We support commercial and residential projects across the Mid-Atlantic with a full range of interior services— including rough and finish carpentry, Division 8 openings, Division 10 accessories, Division 12 furnishings, appliance installation, and closeout support.

Rough Carpentry & Temporary Structures

Rough / Temp

The behind-the-walls work that sets the job up for smooth installations and fewer field fixes.

  • Blocking & backing for millwork, handrails, and other interior attachments
  • Temporary protection like dust/security partitions and temporary walls
  • Site support including covered walkways, hoist/deck support, and chute enclosures
  • Safety features such as fall protection and safety rail components

Finish Carpentry

Trim / Millwork

Detail-focused carpentry that elevates the space and delivers a polished final product.

  • Trim and millwork including base, crown, casings, and decorative surrounds
  • Door and cabinet installation with attention to plumb, level, and longevity
  • Built-ins such as shelving, benches, and practical storage features

Division 8 Openings

Doors / Frames

Expert installation of building openings—where performance, security, and code compliance meet.

  • Specialty doors & frames including high-performance and high-security systems
  • Hardware coordination from standard sets to complex locking/controlled access needs
  • Accessibility & life safety devices, operators, and compliant opening functionality

Division 10 Accessories

Accessories

The essential finishing pieces that make a space functional, complete, and ready for occupancy.

  • Restroom and general accessories like mirrors, dispensers, and fire extinguisher cabinets
  • Storage systems including lockers, wire shelving, and modular shelving
  • Protection and site features such as wall protection and bike racks
  • Specialty installs including select equipment and feature elements as required

Division 12 Furnishings

Furnishings

Furnishing packages that complete the interior with a coordinated, finished look.

  • Casework and countertops for residences and common areas
  • Window treatments including blinds and shades
  • Specialty furnishings installed to spec

Appliance Installation

Appliances

Professional installation of residential and commercial appliances, coordinated with the surrounding finishes.

  • Kitchen and laundry appliances set, leveled, and connected
  • Coordination with cabinetry, plumbing, and electrical trades
  • Final checks to confirm proper operation

Final Punchlist & Closeout Support

Closeout

We help teams cross the finish line with responsive support during final inspection and turnover.

  • Surface and trim repairs to address minor blemishes and finish imperfections
  • Mechanical adjustments for smooth operation of doors, windows, and moving components
  • Finishing touches that prepare the space for final walkthrough and handover

Door, Frame & Hardware Expertise

A specialty of ours — from high-performance and high-security openings to fully accessible, code-compliant hardware.

Specialty Doors & Frames

High-Performance

We're experienced installing high-performance doors from leading manufacturers, including Kreiger Doors for sound, blast, and bullet resistance, and Overly Doors for high-security and sound transmission class (STC) applications.

Advanced Hardware & Security

Security

We fit a wide range of hardware from Allegion, and we install and service high-security locking systems such as Kaba Mas X-10 and LKM (Lock Masters) 10K locks.

Accessibility & Life Safety

ADA / Life Safety

We ensure every opening is not only secure but also accessible — installing mechanical and electrified exit devices and LCN Automatic Operators that meet all ADA requirements.

Built for coordination-heavy interiors

Interior scopes often live at the intersection of schedule pressure, trade coordination, and high visibility. Our teams bring clear communication, disciplined field execution, and a quality-first approach that helps reduce rework and keep momentum through closeout.

Where we fit best

Corporate interiors, hospitality, multi-family, healthcare, and institutional projects—especially where openings, hardware, and accessory packages require tight sequencing.

Typical interior deliverables

A single team that can own multiple interior scopes—reducing handoffs and simplifying scheduling.

Rough + backingBlocking / temp protection
Finish workTrim / millwork / built-ins
OpeningsDoors / frames / hardware
AccessoriesDivision 10 packages
FurnishingsDivision 12 / appliances
CloseoutPunchlist support

Need an interior partner you can count on?

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