Custom Home Additions & Garages
A good addition looks like it was always there. We match the roofline, siding, and trim, and we keep your family living in the house while we build.
Room additions, second stories, and attached or detached garages, matched to the house that is already there.
Adding on is usually cheaper than moving and lets you keep the neighborhood. JP Construction builds additions and garages that match the existing house: same roof pitch, same siding and trim, same window style. That covers master suites, second-story additions, sunrooms, and detached garages with workshop space. Every job is permitted, the grading is handled by our own crew, and the tie-in to your existing structure is done carefully so you cannot tell where the old house stops.
How We Handle Custom Home Additions & Garages
Assess & Design
We assess your existing structure and lot, discuss the scope, and coordinate with a licensed designer on permit-ready drawings.
Permit & Approve
We handle all permit applications and manage any HOA approval requirements before a single shovel hits the ground.
Foundation & Frame
New footings, slab or foundation, and framing are built and integrated with your existing structure while your living space stays protected.
Tie In & Finish
Mechanical systems are connected by licensed subs and finishes are carefully matched to your existing home.
Custom Home Additions & Garages Questions Answered
Ask Us AnythingWe're based in North Huntingdon and serve all of Westmoreland County, including Irwin, Greensburg, Trafford, Murrysville, and Youngwood. We also take select projects in adjacent Allegheny County communities.
Yes. JP Construction carries full general liability insurance and workers' compensation coverage. We are properly licensed in Pennsylvania for the work we perform. License information is available on request.
We handle all permitting. JP Construction manages the entire permit process, from application submission to scheduling municipal inspections. You don't need to set foot in a township office.
Most room additions take 8-16 weeks from permit approval to completion, depending on size and complexity. Second-story additions and multi-room projects run 16-24 weeks. We provide a detailed project schedule before any work begins.
Custom home costs vary widely based on size, finishes, and site conditions. In Westmoreland County, most custom homes we build range from $250,000 to $1.2 million or more. We give you a detailed written estimate before you commit to anything.
Yes. Our Design & Engineering service includes coordinating with licensed architects and designers to produce construction drawings from your concept or rough sketch. We work with several local professionals and can make recommendations based on your project type.
We price projects thoroughly upfront to minimize surprises. When unforeseen conditions arise, such as hidden structural issues discovered during a renovation, we document everything, discuss your options, and get written approval before proceeding with any change order.
Every JP Construction project is assigned a dedicated project lead from kickoff to completion. You'll have consistent communication and a direct line to our team by phone or text. No call center, no ticketing system.
What Customers Say About Our Custom Home Additions & Garages
JP Construction built our two-car garage from the ground up and it came out better than we imagined. They pulled all the permits, kept us informed throughout, and finished on schedule. Quality workmanship and zero headaches.
We added a master suite and laundry room to our 1980s colonial. JP Construction matched the roofline and exterior perfectly, and neighbors have asked us if the house was always that size. Their crew was on-site consistently and that level of involvement made all the difference.
Getting permits for our older home was intimidating, but JP Construction navigated the whole process without any delays. The addition came out exactly as designed. Honest pricing, clear communication, real craftsmanship.
Areas We Serve
Select your community for pricing and details specific to your area.
Primary Service Area
