Design-Build Custom Homes & Remodeling in Lebanon County, PA

Design-Build Custom Homes & Remodeling in Lebanon County

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Since 1994, we’ve completed more than 700 projects across Lebanon County and the surrounding area. We build custom homes, additions, kitchens, bathrooms and pole buildings. With in-house design and one team managing construction, we help you define your budget and project details before building begins.

Why Homeowners Choose ISM Construction

A well-set dining room table featuring elegant tableware, a centerpiece, and comfortable chairs around it.
A kitchen featuring a refrigerator and a stove, showcasing a functional cooking space.
A black door adorned with a decorative wreath, adding a welcoming touch to the entrance.

30+ Years of Experience

Serving our local community since 1994 with over 700 completed projects.

True Design-Build Process

We handle both design and construction in-house for better coordination and fewer surprises.

Built on Integrity

We operate by a simple principle: treat others as you would have them treat you.

Recognized & Trusted

Proud members of NAHB, PBA, and the Lebanon County Builders Association.

Too often, homeowners experience unclear budgets, shifting timelines, and poor communication. We believe building your home should feel organized, transparent, and rewarding.

A large stone house featuring a prominent stone chimney against a clear sky.
A house featuring a welcoming front porch and a prominent front door.

Clear Pricing From the Start

Define budget and detailed specifications before you commit.

Guided Land Development

We walk you through site engineering, permitting, and approvals for custom homes.

Structured Communication

Defined meetings, scheduled walkthroughs, and a clear project roadmap.

Craftsmanship That Lasts

Quality materials and attention to detail that stand the test of time.

Our Design-Build Services

Every project is fully customized to fit your land, lifestyle, and long-term goals.

A large house surrounded by a blanket of snow covering the ground, creating a serene winter landscape.
A large stone house surrounded by a spacious yard, showcasing a blend of natural beauty and architectural strength.
A cozy living room featuring a couch, a chair, and a table arranged for relaxation and socializing.

Explore Our Featured Projects

From a hillside custom home in Robesonia to a whole house remodel in Newmanstown, see real ISM projects with the budget, timeline and square footage behind each one.
A modern kitchen featuring white cabinets and warm wood floors, creating a bright and inviting atmosphere.
A kitchen featuring a dining table surrounded by chairs, creating a cozy eating area.
A wooden dining room table set for a meal, surrounded by chairs and a decorative centerpiece.

What Does Remodeling Cost in Lebanon County, PA?

Every project is unique, but here are typical investment ranges for our
design-build services.

Custom Homes

$260-$290

per square foot.

Small:

350k-450k

Medium:

550k-750k

Large:

1,000,000+

Home Additions & Major Renovations

$305-$375

per square foot.

Small:

50k-90k

Medium:

100k-200k

Large:

500k+

Kitchen & Bathroom Remodeling

Starting at $50k - $100k

Varies based on layout changes, finish and structure work.

How We Bring Your Vision to Life

We’ve simplified building and remodeling into three clear stages so you always know what comes next.

01

Define

Discovery call, buyer’s guide, site engineering review, ballpark pricing, and design agreement.

02

Refine

Detailed prints, updated specifications, pricing review meetings, and finalized plans.

03

Build & Deliver

Selections meetings, scheduling, mechanical walkthroughs, and final walkthrough before completion.

Family 1 Ism
NewTeam 1

The Team Behind ISM Construction

Led by Ivan and Josiah Martin, ISM Construction has served Lebanon County homeowners since 1994. As a family-owned and operated business, we believe building homes is about relationships as much as construction.

Ivan began his work in construction in 1983, and after 11 years he founded ISM Construction. His relationship-based approach to building has made ISM what it is today.

Josiah grew up working in construction with his Dad and has been a part of ISM for the past 15 years. He and his wife Megan have been married for 14 years and are raising six children right here in our community. That commitment to family and community shapes how we approach every project.

Our Core Values

A clean regional map marking the six Pennsylvania counties ISM Construction serves—Schuylkill, Berks, Lebanon, Dauphin, Lancaster and York.

Proudly Serving Lebanon County and Surrounding Areas

We serve Lebanon County and surrounding areas:

Trusted by Families Across Lebanon County and Surrounding Communities

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Lucille Zimmerman profile picture
Lucille Zimmerman
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From the initial meeting with Nate to begin designing, to Ivan's tireless efforts with the township and engineers, to Josiah's and Jimmy's help with details, to Cesar's management of the project, to all the subcontractors, and others I may have forgotten to mention, my experience with ISM was positive and good. Their attention to detail and to what I wanted/expected was greatly appreciated. They offered ideas that I had not thought about. I was blessed to work with each one of them and am pleased with my new home. I can highly recommend ISM!
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Jodi Harro
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We Absolutely Love our renovated kitchen, dining area, laundry room, bathroom & pantry! ISM Construction did such an Amazing job, went above and beyond on the design & completion of the entire space, and were very professional from start to finish! Each person we came in contact with was friendly, answered our questions, and did such a Wonderful job! Another thing that was key for me was that we trusted them in our home when we weren’t able to be there! We highly recommend ISM and would Definitely use them again!!
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Judy Good profile picture
Judy Good
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Once upon a time I asked for a fairy tale cottage. ISM Construction was the ideal company to put my dream together. They worked with me to listen to my needs and were extremely patient putting the plan together. The schedule was available to me before the job got started. Once construction was on the way everything was right on schedule. It was amazing to see how quickly a home can come together. I had the opportunity to be on site through the process and each and every person working on the job with their expert skills was pleasant showing so much care and concern with their hand in the process. I am so thankful that I had ISM to build me a comfortable home where I can live happily ever after.
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Theresa Paice
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ISM Construction were extremely professional throughout the entire process starting from the design process with Jimmy F. Jimmy was able to keep us within our budget. Our project ran so smoothly with Dawson K. as our project supervisor and main contact while the job was going on. Dawson took the time to explain everything clearly, and made sure all of our questions were answered. All subcontractors were thoughtful, thorough, and paid close attention to every detail. Their knowledge, patience, and dedication to doing the job right were so greatly appreciated. ISM’s online portal kept us up to date guy on our project activities which took two months to complete. I highly recommend ISM and we are very pleased with the service they provided. We just love our sunroom!
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Ashley McClintock
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We worked with ISM construction to build an extension onto our home for a laundry/mudroom. This room needed to be suspended above a garage below, and a door cut through our home's limestone exterior to join the structures. Not an easy job! ISM did a fabulous job on the work, stuck to a schedule, and made sure the job site was clean and efficient. When we did run into trouble with an HVAC subcontractor, ISM made sure to stay engaged and continue to follow up with both us and the subcontractor until the work was completed. When we hit a bitter cold spell, and our heat wasn't working properly, they made sure to push the subcontractor to fix it in a timely fashion. Overall, incredibly pleased with the work done.
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Chad Sterner
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We love our custom built ISM house. The guys were easy to work with and everything was laid out nicely and explained well. The Subs they used were great and did a fantastic job, even through the harsh 2025-26 winter. (not the easiest time to build a house). We especially were thankful for the excavation guys they used, "On Track" is an amazing crew of guys. They were able to bring our vision to life and worked with us every step of the way. We had a very challenging site to build on and to date I still look back and am amazed at what ISM and their guys were able to accomplish. We liked that they are not simply "yes men" and will push back if they feel they need to, they are invested in building the house you want, but also in creating something that will last a lifetime. I highly recommend these guys.
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Ethan Harro
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ISM did a phenomenal job with building our dream home. We brought our own house plans/ideas to them and they brought it to life. We are so happy we chose ISM!
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Khine K. profile picture
Khine K.
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We cannot recommend ISM enough. Every single person in the company has been amazing to work with. They were very responsive and at times during the planning phase when my husband and I did not see eye to eye, they came up with designs that combined what my husband and I wanted, that we are both happy with. They have been extremely accommodating as well with last-min changes. And they work with (most) contractors that very much care about what they do, that resulted in high quality workmanship. We highly recommend working with ISM for all of your project needs.
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Clair Wilson profile picture
Clair Wilson
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ISM is great to work with. Very attentive staff and attention to every detail!
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Linda Vance
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Building our forever home was something I had dreamed about for many years. The moment we met the team at ISM Construction, we felt at ease and reassured that we were in good hands. We knew they would be the right company to build our forever home. Their knowledge, experience, and reassurance helped us decide that ISM was the builder best suited for us ISM operates with integrity, responsibility, and a strong sense of accountability, and that spirit shows in everything they do. Ivan carries himself with a calm confidence that immediately puts you at ease. Josiah led our project and shared their program with us, which included a construction schedule, changes made, our selections, and many other details that made everything easy to follow. His steady leadership, great patience, and willingness to explain things more than once were truly appreciated. Nate was incredibly detail-oriented and organized. Many of the thoughtful ideas in our drawings came from his careful planning. Dawson, our project manager, was hands-on, personable, and always kind. When we visited the site, he answered all our questions with confidence and honesty. Together, they truly make an exceptional team. There were quite a few decisions to make, like layouts, finishes, details I didn’t even know existed. Permit requirements were also an important part of moving forward which ISM handled effortlessly. They walked us through each step and remained committed to the schedule, even through last year's rainstorms and mud. Watching our land transform into a home was amazing and something I will never forget! As with any large project, small adjustments along the way are simply part of the process. What mattered to us was that the ISM team approached everything with professionalism and a willingness to make things right. That gave us peace of mind. ISM didn’t just build what we imagined, they helped make it even better. Now that we are settled in, friends and neighbors often compliment the beauty and quality of our home. It is everything we hoped for and more. We feel truly blessed to have worked with this team, and we are so grateful for the care they put into building our forever home. I would wholeheartedly recommend ISM to anyone looking to build. They will treat you like family and take pride in doing things the right way.

Frequently Asked Questions

Your Building Questions, Answered

How much does a custom home cost in Lebanon County?

Most custom homes begin around $380,000, depending on size, finishes, and land
requirements.

Yes. We are a true design-build company with in-house design services.

Absolutely. We guide you through all required approvals and land development steps.

Timelines vary based on scope, but we provide a clear schedule before construction begins. Most remodels take between 2 and 5 months to complete.

We proudly serve Lebanon County and surrounding counties including Lancaster, Berks,
Dauphin, York, and Schuylkill.

Ready to Start Your Custom Home or Remodeling Project?

If you’re looking for a builder who values transparency, structure, and long-term quality, let’s begin the conversation.