Who We Are
Built With Integrity and Delivered With Care
Poster Construction has been building homes in the Wood River Valley since 1997, and the reputation we’ve earned over that time reflects our commitment to doing the work the way we’d want it done if it were our own home. We’re a family-owned company, and we’ve stayed small deliberately, because staying small is how we stay good. Every project we take on in Bigwood, Ketchum, ID is handled by a team that’s fully invested in the outcome, not just the schedule. Our clients know who’s running their job, they hear from us consistently throughout the process, and they end up with a finished home that reflects everything they were hoping for when they first called us. That’s what nearly 30 years of doing this looks like in practice.

Testimonials
The relationships we build through our projects tend to last long after the work is done. Clients come back to us for additions and second phases, refer us to friends and neighbors, and take the time to share what the experience was like, describing the process and the people behind it in ways that mean a great deal to us. Their accounts are the most honest picture of what it’s like to build with Poster Construction, and we’d encourage anyone considering working with us to spend some time reading through them.
Working on both new and remodel projects over the years with Poster Construction has always been a pleasure. The professionalism, expertise and creativity of the construction team that Brian assembles is commendable. Not just 'constructors', but creative problem-solvers, the team at Poster Construction brings more to the table than your typical residential construction group, and always with positive and respectful attitudes towards the client and design team consultants. Brian and his team have consistently brought complicated projects to fruition on time, in budget and with very happy and satisfied clients — that is the proof of their success.
Stephen D. Pruitt
Brian Poster, Robbie Burns and crew were a pleasure to work with from start to finish. Besides the fact that they do beautiful work, they are honest, conscientious and trustworthy. They were there for us until the finish and continue to be there beyond as friends. We had such a great experience with them, that we recommended them to my dad for his house.
Eric & Tammy
As a subcontractor who has worked on many custom homes for Poster Construction over the last 12 years, I can attest to the integrity, quality, professional discipline that Brian and his staff put into each project. He is a tirelessly tenacious advocate for his clients, requiring his subs, as is hard-nosed but fair way, to adhere strictly to budgets, schedules, and to the highest quality and aesthetic standards. Because of these attributes, my association with Poster Construction has been key in building my own company's reputation and success in the Sun Valley area.
Robert Del Signore
Our Projects
A Portfolio Tailored to Bigwood, Ketchum Living
Our completed work in and around Bigwood spans a broad range of styles, sites, and project types, united by a consistent commitment to craft and a refusal to cut corners anywhere in the process. We’ve built clean-lined contemporary homes that sit elegantly in the landscape, and we’ve built warm, richly detailed homes that feel like they’ve belonged here for generations. Some of our most meaningful work has been the careful renovation of older homes whose owners wanted to preserve the character of what they had while bringing everything up to the standard it deserves. Browse our portfolio, and you’ll see the range we work in and the quality we maintain across all of it.

Our Build Services
Every Service Your Project Needs
Poster Construction is equipped to lead your Bigwood, Ketchum project from first conversation to final walkthrough, whatever the scope. We build custom homes from the ground up in close collaboration with you and your architect, with every decision shaped by how you want to live and the specific demands of your site and climate. Our remodel work rethinks the spaces in your home that aren’t serving you the way they should, reconfiguring them around how you actually use them. Our renovation projects bring properties forward thoughtfully, adding comfort, efficiency, and updated systems without erasing the original character. For clients working with a separate builder or development team, our construction management and owner representation services bring our oversight and accountability to the project from the inside, protecting your investment at every stage. Whatever your path looks like, you’ll have one experienced team behind it.

Who We Are
The Same People and the Same Standards, Every Day
Consistency is something our Bigwood clients notice and rely on, and it’s something we’ve worked hard to deliver over the course of every project we’ve built. Each job is led by a dedicated supervisor and lead carpenter who are present and accountable from start to finish, supported by an in-house crew and a network of trade partners who’ve been working on our jobs long enough to know exactly what we expect. There’s no point in a Poster Construction project where you’re meeting new faces and re-explaining what matters to you. The people you meet at the beginning are the people who see it through, and that continuity is one of the most important things we bring to the work in Bigwood, Ketchum, ID.
Certified green builder
Certified Green, Built to Perform
Poster Construction has more Certified Green Professionals on staff than any other custom home builder in Idaho, and that distinction reflects a commitment we’ve held for years. Sustainable building, for us, means designing homes with tighter envelopes, more efficient mechanical systems, healthier interior environments, and materials selected for long-term durability rather than short-term economy. For homeowners in Bigwood, those decisions pay off in lower energy bills, more even and comfortable temperatures through every season, and a home that holds its quality over a long life. We don’t treat green building as a category of upgrade; it’s a core part of how every Poster Construction home gets built, from the foundation up.


Certified green builder
Designed Uniquely for Bigwood, Ketchum, ID
The Wood River Valley puts real demands on its buildings, and our team has spent decades learning how to build homes that meet those demands without compromise. Every detail, from how we handle moisture at the foundation to how we approach insulation and air sealing to the exterior materials we specify for this climate, is chosen with an eye toward long-term performance rather than just initial appearance. The homes that hold up here are the ones where those decisions were made correctly from the start, and that’s precisely what we bring to every project in Bigwood, Ketchum, ID. Our clients move into homes that are built to be beautiful and to stay that way through everything the seasons can bring.
FAQs
Have a question?
What makes building new in Blaine County unique?
Blaine County’s mountain environment offers stunning views and a high quality of life, but it also presents specific building challenges. Snow loads, wildfire risk, steep sites, and strict county codes all influence the design and construction process. With decades of local experience, we know how to navigate these factors to build homes that stand strong against the elements and take full advantage of the natural landscape.
How do you ensure quality throughout the construction process?
Quality is monitored at every stage. Your project is overseen by a dedicated supervisor and lead carpenter who manage subcontractors, verify installations, and review each phase of work. We use reputable local trades, proven materials, and a detailed quality-control process to ensure your home is built to the highest standards.
Are green building and energy-efficient features available for new construction?
Absolutely. As a Certified Green Professional Builder, we integrate sustainable practices into every home, including advanced insulation, energy-efficient HVAC systems, solar-ready infrastructure, smart-home technology, and low-VOC materials. We tailor these options to your goals and budget to create a high-performance home.
How long does new home construction typically take?
Most new custom homes in Blaine County take 12–24 months, depending on design complexity, site conditions, seasonal weather, and the level of detail you choose. We’ll provide a realistic timeline early in the process and keep you updated at every stage so you always know what’s ahead.
What does “new construction” mean when building with Poster Construction?
New construction means starting your home from the ground up—allowing us to tailor every detail to your site, lifestyle, and design preferences. From evaluating your land and preparing the site to coordinating trades and delivering the final finishes, we manage the entire process to ensure your home is beautifully crafted and built to last.




