Who We Are
Three Decades of Building It Right
Poster Construction has been part of the Wood River Valley community since 1997, and what’s kept us here is a way of doing business that doesn’t change based on the size of the project or how busy the season gets. We’re a family-owned company, small by design, and our whole model is built around staying close to the work and close to our clients. When homeowners in Warm Springs hire us, they get a team that treats their project as the priority it is, with the same experienced people involved from the first conversation to the day they move in. That kind of attention is what we’d want if we were the homeowner, and it’s what we’ve delivered consistently for nearly 30 years.
Testimonials
We’ve been lucky to work alongside homeowners, architects, and tradespeople who believe in sharing their experience honestly, and their accounts of building with Poster Construction are something we’re proud of. They tend to describe not just the quality of the finished home, but the process that led to it, including the communication along the way, the way the team showed up every day, and what it felt like when everything came together. Those accounts say more about who we are than anything else, and we hope you’ll take a few minutes to read 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
Homes That Belong Here
Our portfolio around Warm Springs tells the story of a team that knows this landscape well and builds in service of it. We’ve built contemporary homes as well as traditional structures that look like they’ve been part of the hillside for decades. We’ve renovated homes with history and brought them forward thoughtfully, keeping everything worth preserving and fixing everything that wasn’t working. The range of styles is wide, but the level of care is consistent across all of it. Our portfolio is the best way to see what that looks like, and we’d encourage you to take a look.
Our Build Services
Full-Service Construction for Every Kind of Project
Poster Construction handles every stage and every type of residential construction, so you don’t have to piece together different teams for different parts of the work. We build custom homes from the ground up, collaborating closely with you and your architect to make sure the finished home reflects how you live and what the site calls for. Our remodel work reshapes the spaces in your home that aren’t working the way they should, while our renovation projects update properties carefully, adding comfort and performance without stripping away the character that made them worth updating in the first place. We also offer construction management and owner representation for Warm Springs clients working with a separate builder or development team, bringing our oversight and experience to the project from the inside. Wherever your project starts, we’re equipped to see it through.
Who We Are
Nothing Less Than the Best Home Construction Team
When homeowners in Warm Springs hire Poster Construction, they’re hiring the specific group of people who built the homes in our portfolio, led by a dedicated supervisor and lead carpenter on every project and supported by our in-house crew and a network of trade partners who’ve been working alongside us for years. We’re selective about who we build with, because the quality of the team is the quality of the home. That selectivity is part of why our Warm Springs clients feel confident in the process and proud of the result, and it’s something we take seriously on every project we take on.
Certified green builder
Building Better for Every Project
Our commitment to sustainable building isn’t something we adopted recently. It’s been part of how we work since the early days of this company, and today our team includes more Certified Green Professionals than any other custom home builder in Idaho. We bring that expertise to every project we build in Warm Springs, with attention to building envelope performance, mechanical system efficiency, material durability, and indoor air quality at every stage of the process. The payoff for Warm Springs homeowners is a home that costs less to operate, feels comfortable through every season, and holds its quality over a long life. We build this way because it’s better building, and that’s always been the point.
Certified green builder
Made for Warm Springs, Ketchum, ID, and the Local Environment
Every environment makes specific demands on the homes built in it, and the Wood River Valley is more demanding than most. Our team has spent decades building here and learning how the climate behaves across every season, and we apply that knowledge to every decision we make on a project. From the way we approach foundation waterproofing to the insulation strategies we use to the materials we specify for long-term performance, every choice is made with this specific climate in mind. The result is a home that’s built to last here, not just to look good on the day it’s finished. Our clients in Warm Springs can expect both, and they’ll have them for as long as they own the home.
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.
