About ISM Construction

Built on the Golden Rule. Proven by 700+ Projects.

We’re ISM Construction, a family-owned design-build remodeling and custom home builder serving Lebanon County and the surrounding areas. We build quality living spaces with lasting value, and we run our company by one simple principle, treat others the way you would want to be treated.

Trusted experience you can feel confident about:

See How We Work

Hi, I’m Josiah Martin, and I’m grateful you’re here. ISM Construction was built to be the kind of builder families can actually trust, the kind that communicates clearly, shows up, and takes ownership of the details.

Over the years, we’ve seen how stressful building or remodeling can get when expectations are unclear or when homeowners feel left in the dark. We built our process to solve that problem, design and construction under one roof, one team, one plan, and a clear path from first conversation to final walkthrough.

Our Mission, Vision & Values

Our Mission

To serve our community by building quality living spaces with lasting value.

Our Vision

To be a trusted local builder, known for delivering high quality, profitable projects with exceptional customer service.

Our Core Values and What They Mean for You

01 Excellence

We sweat the details, from the drawings to the punch list, so your finished space feels right and functions well long after move-in.

02 Integrity

You will get straight answers, transparent expectations, and a builder who does the right thing even when it is inconvenient. That is how trust is earned.

03 Teamwork

Design and production work together from the start, so your project runs smoother and surprises get caught earlier.

04 Relationship

We are not trying to win a job. We are here to earn a long term relationship built on respect and follow through.

05 Communication

You should never wonder what is happening. We keep things clear, timely, and organized so you feel informed and in control.

06 Generosity

We believe good work and good people matter. We aim to serve homeowners and our community with a mindset that goes beyond the contract.

Meet The Team

ISM Construction is led by Ivan and Josiah Martin, with a family-first approach that keeps priorities grounded and communication personal. Ivan and his wife Rosene founded ISM in 1994 all while raising their 4 kids in the community, which is a big reason we understand how important it is to respect your home, your routine, and your peace of mind during a project.

James “Jimmy” Fackler

joined ISM in 2025, but is no stranger to building. With over 25 years of combined experience owning a construction company and managing a local building company, Jimmy brings a broad range of field expertise and well-rounded knowledge to the team. He feels right at home in a company that values customer service and quality craftsmanship, and works hard to ensure that every customer feels the same. Jimmy’s role at work is in sales, estimating and ordering. Outside of work, he can be found spending time with his wife and four kids, involved in competitive archery, hunting or hitting the gym.

Eric Bowers

Eric joined ISM in 2026 as a draftsman, bringing a broad range of experience from fine furniture finishing to operating heavy equipment. He holds an Associate degree in Architectural Studies and has previous drafting experience in industrial precast. His varied background has given him a strong appreciation for craftsmanship and attention to detail. Outside of work, he enjoys spending time with his wife and kids, camping, playing complex board games, and working on projects around the house.

Why Homeowners Feel Confident Choosing ISM

projects completed through referrals and repeat clients

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years of local building experience

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Memberships in respected building associations

What We Build

We are a design build company offering fully customized design to fit your lifestyle needs and budget, all handled in house. You work directly with our team from start to finish.

Custom Homes

Home Additions

In-Law Quarters

Kitchens and Bathrooms

Interior and Exterior Remodels

Home Remodeling

Garages, Pole Buildings, and Second Story Additions

A Clear Process From First Call to Final Walkthrough

Here is the real world flow most clients experience:

Define

Discovery Call

We have an initial phone call to determine if we are a good fit for each other. We will talk about the location, scope, budget, timing, etc.

Initial Meeting

At our in-person meeting to get to know each other and about the project. We start talking specifics about what a customer's wants and needs are and develop a rough plan.

Ballpark Review Meeting

Based on our meeting, we will create a general scope, price, and then meet to review everything with you.

Design and Site Agreements

After the review meeting a design agreement is presented to develop detailed plans. A site engineering agreement is presented to get a head start working on any required site engineering needs while we finalize plans and specifications.

Refine

Detailed Prints

After a signed design agreement, we will create plans for the project. This will include a full set of plans and 3D renderings.

Detailed Specifications

Once we have a plan, we will create a detailed specification sheet and price based on the plans.

Meeting to Review

In this review meeting, we will pull up the plans and 3D model for the customer to visualize. We can make changes to the plans and model in real time. Also, during this meeting we will review all the specifications to make sure everything is captured.

Site Meeting

We will then set up a site meeting. For new homes, it is to see how the house will fit on the land and how the grade will work around it. For remodels & additions it is to confirm measurements and verify how all of the mechanicals will connect.

Plan & Spec Updates

We will make updates based on the site meeting information and customer's wants/needs as many times as it takes until the customer is happy.

Contract

Only once site engineering is complete and the customer is happy with the plans, specs, & price will we present a contract for a customer to sign.

Build & Deliver

Selection Meeting

This is when we will choose all the finishes for the project. Our design studio and 3D renderings help you visualize your selections in real time. There is a lot to pick out so we typically break it up into several different meetings.

Groundbreaking

We kick off construction with a groundbreaking meeting to walk through the project scope, timeline, and key milestones with you.

Mechanical Walkthrough

During construction, we conduct a mechanical walkthrough to review all systems, rough-ins, and structural elements before they are covered up.

Final Walkthrough

Before you move in, we complete a final walkthrough to ensure every detail meets our quality standards and your expectations.

Scheduled milestones & Clear Communication

We keep you informed throughout construction with structured milestones, scheduled walkthroughs, and regular communication. Payments are tied to progress at key milestones so you always understand what you are paying for and why. We review the full schedule with you before construction begins so there are no surprises.

Clear and Simple Payment Structure

We keep payments straightforward and tied to progress. Instead of large upfront costs, payments are scheduled at key milestones throughout the project so you always understand what you are paying for and why. We review the full schedule with you before construction begins so there are no surprises.

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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   Khine K. 
 
 
 
 Trustindex verifies that the original source of the review is Google. 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 
 
 
 
 Trustindex verifies that the original source of the review is Google. ISM is great to work with. Very attentive staff and attention to every detail!
  
 
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   Linda Vance 
 
 
 
 Trustindex verifies that the original source of the review is Google. 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.
  
 
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   William Andrews 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience with ISM! They were quick to respond to our inquiry, provided us detailed plans and specs for our project. They had fair prices, amazing craftsmanship, and stayed on schedule! Every one of their workers were kind, professional, and we felt very comfortable around them. Highly recommended!
  
 
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   Jay Weaver 
 
 
 
 Trustindex verifies that the original source of the review is Google. We appreciated the work from ISM from day1 until move in. The experience showed in many areas. All the sub contractors met and exceeded our expectations. I would highly recommend ISM for your building needs. Jay & Miriam Weaver
  
 
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   Jayson Luckenbaugh 
 
 
 
 Trustindex verifies that the original source of the review is Google. Designing and refining a set of plans and bringing them to life requires the right partner and we were blessed to have found and work with ISM.  A selection process that was detailed, an organized schedule so we knew what was happening and when, communication throughout the project and working through challenges when things didn't go exactly as we planned made for a successful project.  We couldn't have envisioned the final product when staring at an untamed wooded lot on stake out day.  But ISM's experience, their excavator's vision (shoutout to Jere of On-Track!) made for a remarkable home we are lucky to have.  Thank you Ivan, Josiah, Nate, Dawson and the whole ISM team!
  
 
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   Glenn Warwood 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great experience working with ISM on our addition/ renovation project.
  
 
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   Amy Thome 
 
 
 
 Trustindex verifies that the original source of the review is Google. We had a great experience working with everyone at ISM. They were very patient and flexible with us as we went back and forth with our additon to our ranch home. Definitely would recommend them!
  
 
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   Mike Spicer 
 
 
 
 Trustindex verifies that the original source of the review is Google. We did a remodel and an addition to our house and ISM were the best. Total professionals and everything exceeded our expectations. They gave us a schedule for 4 months and everything was done on time or earlier. They are perfectionists and it shows in the quality of their work. We need to remodel our kitchen and bathrooms next and there is only one company we will use and it’s ISM. Thanks so much for everything.

Frequently Asked Questions

Your Building Questions, Answered

How much does a custom home cost in Lebanon County?

Custom Home Prices vary depending on size, finishes, and land requirements. Our per square foot price ranges from $260-$290 per square foot.

Do you handle both design and construction?

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

Do you help with permits and site engineering?

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

How long does a remodel take?

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

What areas do you serve?

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

Ready to Build a Home You Will Love Living In?

If you are planning a custom home, addition, or major remodel, we would love to hear what you are thinking and help you map out the right next step.