Second Story Additions · Bucks County, PA
Second Story Additions in Bucks County
Slate Building LLC designs and builds full and partial second story additions across Bucks County — doubling your living space without sacrificing your yard. With structural engineering and every trade in-house, we manage the entire project from design to finish.
Recent Builds
Real projects, built in-house.
A second story is the smartest way to gain bedrooms, suites, and living space on a tight lot. We handle the engineering, weather protection, and finishes for a result that looks original.
Related Services
Addition services we offer.
Room Additions
Single-room bump-outs and full wings that expand your living space and add lasting value.
Second Stories
Full second-story additions that double your footprint without sacrificing your yard.
Master Suites
Spacious primary bedroom suites with spa baths, walk-in closets, and private retreats.
In-Law Suites
Self-contained living quarters with private entrances, kitchenettes, and accessible design.
Sunrooms
Bright, four-season sunrooms and conservatories that bring the outdoors in year-round.
Garage Additions
Attached and detached garages, plus garage-to-living-space conversions and bonus rooms.
Family Rooms
Comfortable great rooms and family rooms with vaulted ceilings and seamless integration.
Structural & Finishes
Foundations, framing, roofing, siding, and interior finishes — all managed in-house.
Why Homeowners Choose Slate
Craftsmanship in every detail.
Licensed & insured
Fully licensed and insured in Pennsylvania for your complete peace of mind.
Custom designs
Every project is designed from scratch around your home, lifestyle, and budget.
Premium materials
Custom cabinetry, stone, hardwood, and high-end finishes built to last decades.
Clear communication
One point of contact, transparent pricing, and daily updates throughout.
Local Bucks County contractor
We know local codes, permitting, and what holds up to Pennsylvania weather.
Have Questions?
Answers for local homeowners.
How much does a second story addition cost in Bucks County?
Second story additions typically range from roughly $150,000 to $400,000+ depending on square footage, whether it's a partial or full second floor, and finishes. We provide a transparent, itemized estimate after assessing your home's structure.
Can my home structurally support a second story?
Most homes can, but it depends on the existing foundation and framing. We bring in structural engineers to evaluate your home and reinforce where needed so the addition is safe and code-compliant.
How long does a second story addition take?
Full second-story additions typically take 4–6 months. The most weather-sensitive phase — opening the roof and framing the new floor — is sequenced carefully to protect your home.
Do I need to move out during a second story addition?
Often you can stay during much of the project, but during the roof-removal and framing phase many homeowners choose to relocate temporarily. We'll discuss the timeline and options up front.
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