Home Additions In Lebanon, PA
- Quality you can trust.
Love Your Home? Don't Move. Improve.
- Feature services
Transform Your Home with a Custom Addition
Second-Story Additions
Double your square footage without losing your precious yard space — the perfect solution for adding multiple bedrooms and bathrooms for a growing family.
In-Law &Family Suites
Provide comfort, privacy, and independence for aging parents or long-term guests with a beautifully integrated apartment or private suite.
Great Room & Family Room Expansions
Create a spacious, light-filled hub for family gatherings and everyday life by extending your main living area.
Primary Suite Retreats
Escape to a luxurious private oasis. Add a spacious bedroom, a spa-like bathroom, and oversized walk-in closets.
Sunrooms & All-Season Rooms
Bridge the gap between indoors and out with a stunning, light-drenched space you can enjoy year-round, regardless of the weather.
- The ISM Difference
Why ISM is the Right Choice for Your Home Addition
An addition is a complex project that requires a deep understanding of design, structure, and seamless integration. Homeowners across Central PA trust ISM Construction because we are not just contractors; we are masters of our craft, dedicated to a flawless process and an exceptional result.
Our integrated design-build team means you have one partner and one point of contact from start to finish. This eliminates the confusion and blame that can arise when working with separate designers and builders. As proud members of the NAHB, PBA, and LCBA, with over 700 successful projects, our reputation is built on transparency, communication, and delivering on our promises.
- Clear steps. Better results.
Our Seamless Addition Process
01
Design & Plan
We meet at your home to understand your goals and assess the structural possibilities. Our in-house designers then create a custom plan that enhances your home's existing architecture and flow, complete with 3D visuals.
02
Price & Sign
We provide a detailed, transparent, fixed-price proposal. No surprises — just a clear path forward with a total investment you can plan around.
03
Build
Your dedicated Project Supervisor manages all aspects of the build, ensuring the highest quality while minimizing disruption to your family's daily life.
04
Walk Through & Enjoy
We conduct a meticulous final walkthrough to ensure your new space is perfect. Relax and enjoy your expanded home, backed by our comprehensive warranty.
Pricing Guide
| Category | Size | Estimated Cost | Details |
|---|---|---|---|
New Homes | Small Medium Large | $350,000 – $450,000 $550,000 – $750,000 $1,000,000+ | 1,500 sq. ft. 2,500 sq. ft. 3,500 sq. ft. |
Additions | Small Medium Large | $65,000 – $85,000 $180,000 – $225,000 $300,000+ | Based on 14×16 Sunroom 20×30 Great Room Full in-law quarters with kitchen |
Remodels | Small Medium Large | $50,000 $90,000 $300,000+ | Bathroom Kitchen Whole House |
Garages and Pole Buildings | Small Medium Large | $70K – $80K $180K – $195K $250K – $300K | Pole Bulding 30X40 Detached Garage Detached Garage W/Finished Second Floor Bonus Room |
- Got questions
Home Addition FAQs
Your Building Questions, Answered
Will an addition increase my property taxes?
Yes, an addition will increase your home’s assessed value and property taxes. However, it also significantly increases your home’s equity and resale value.
How do you manage dust and disruption during construction?
Can you match the existing materials of my home?
Ready to Grow? Let's Get Building.
If you’re feeling constrained by your current space but love where you live, a home addition is the perfect way to invest in your family’s future and your home’s value. Let’s explore the possibilities together.