Interior Remodeling Services in Philadelphia, PA & Cherry Hill, NJ
Living rooms, basements, home offices, and whole-home renovations — handled start to finish by a licensed contractor with 33+ years of experience.
GRM LLC provides interior remodeling services for homeowners and commercial property owners in Philadelphia, PA, Cherry Hill, NJ, and surrounding communities.
We renovate living rooms, basements, bedrooms, home offices, hallways, and multi-room spaces — everything outside of kitchens and bathrooms, which have their own dedicated service pages.Interior remodeling covers a wide range of work. Some clients want a single room updated with new flooring and paint.
Others need structural changes like removing walls to create an open-concept layout, converting an unused basement into livable space, or building a home office with custom cabinetry and electrical. We handle projects at every scale, from cosmetic refreshes to full gut renovations.
Our team manages the process from the first estimate through final cleanup. Every project starts with a free on-site visit where we walk through your space, discuss what you want to change, and provide a written quote with no hidden costs.
Call (267) 243-2926 or request your free estimate online.
Types of Interior Remodeling We Handle
Basement Finishing & Conversions — Unfinished basements are one of the most underused spaces in Philadelphia rowhomes and suburban homes alike. We frame walls, install drywall, add flooring, and wire electrical to turn a raw basement into a living area, recreation room, guest suite, or home gym. Moisture mitigation and proper insulation are addressed before finishing begins.
Home Office Construction — A dedicated workspace with proper lighting, electrical outlets, built-in shelving, and a door that closes. We build home offices from scratch in spare bedrooms, basements, or converted closets, including custom cabinetry and data/power wiring.
Open-Concept Layout Conversions — Removing walls between a living room, dining room, or hallway to create an open floor plan. We assess which walls are load-bearing, install support beams where needed, and refinish the floors and ceiling so the space looks unified.
Room Renovations — Full room updates including flooring, painting, trim, crown molding, lighting fixtures, and custom built-ins. Whether it’s a living room that hasn’t been touched in 20 years or a bedroom that needs a refresh, we handle every detail.

Decorative Wall Finishes — Beyond standard paint, we offer Italian Venetian plaster for a textured, polished finish that adds depth and character to any room.
See our Italian Venetian Plaster page for more on this specialty service.
Flooring Installation — Hardwood, tile, vinyl plank, and laminate for living areas, hallways, and bedrooms. We remove old flooring, repair subfloors, and install new material. For kitchen and bathroom flooring specifically, see our dedicated Flooring Installation page.
Demolition & Structural Prep — Wall removal, ceiling tear-out, old fixture disposal, and site prep before construction begins. For large-scale demolition, see our Demolition & Cleanup services.

How an Interior Remodel Works
1. Free On-Site Assessment — We visit your home or business, walk through the space, and discuss what you want to change. You’ll receive a written estimate covering labor, materials, and timeline.
2. Design & Material Selection — For projects that involve layout changes, cabinetry, or finish selections, we review options with you before ordering. We can source materials or work with products you’ve already chosen.
3. Demolition & Prep — Old finishes are removed, walls are prepped or modified, and the space is cleaned for new construction. We set up dust containment barriers to protect the rest of your home during work.
4. Construction & Installation — Framing, drywall, electrical, plumbing (if needed), flooring, paint, trim, fixtures, and cabinetry are installed in the proper sequence. We coordinate all trades so you don’t have to.
5. Walkthrough & Cleanup — We walk through the finished space with you, address any final details, and remove all construction debris from your property. The space is ready to use when we leave.
Questions Homeowners Ask About Interior Remodeling
How long does an interior remodel take?
Timelines range from a few days for a single-room refresh (paint, flooring, fixtures) to 4–8 weeks for larger projects like basement conversions or open-concept layouts that involve structural changes. We provide a projected schedule during your estimate.
How much does interior remodeling cost?
Costs depend on the scope of work, materials, and whether structural changes are involved. A cosmetic room update costs significantly less than a full basement finishing. We provide a written quote after the on-site visit so there are no surprises.
Do I need to move out during an interior remodel?
For most projects, no. Work is confined to the area being renovated, and we use dust barriers to isolate the construction zone. Full-home renovations may require temporary relocation depending on the scope.
Can you remove a wall to create an open floor plan?
Yes. We assess whether the wall is load-bearing, and if it is, we install a support beam before removing it. The ceiling, flooring, and finishes are then blended so the space looks like it was always open.
Do you finish basements in Philadelphia rowhomes?
Yes. Philadelphia rowhomes often have compact basements with low ceilings and limited natural light. We address moisture, insulation, and ceiling height to create usable living space that meets code.
Will you handle the electrical and plumbing work?
Yes. Our team handles electrical wiring, outlet installation, lighting, and basic plumbing updates as part of the remodel. We coordinate all trades so you have one point of contact.
What’s the difference between this and your kitchen or bathroom remodeling services?
Our Kitchen Remodels and Bathroom Remodels pages cover those specific rooms in detail. Interior remodeling covers everything else: living rooms, basements, bedrooms, home offices, hallways, and multi-room renovations.
Ready to Remodel?
Call (267) 243-2926 or fill out the form below to schedule your free on-site estimate.
We’ll walk through your space, discuss what you want to change, and provide a written quote — no obligation.
GRM LLC serves Philadelphia, PA, Cherry Hill, NJ, and surrounding communities. Licensed and insured with 33+ years of experience.
Looking for a specific service?