Who We Are
Honest Work, Beautifully Done
Since 1997, Poster Construction has earned a reputation for quality, integrity, and consistency, and those qualities are what bring clients in Sun Valley to our door. Brian Poster started this company with a clear idea of what a builder ought to be: present on the job, fair to the people on either side of the contract, and proud enough of the finished work to point at it years later. That idea still defines us today. We are a family-run team that has stayed deliberately small so we can keep our hands on every project, our eyes on every detail, and our names attached to every home we deliver. Whether you are planning a new build, a major remodel, or a careful renovation of a home you already love, our promise to you in Sun Valley is the same one we have honored for nearly 30 years: do the work right, treat the client well, and let the finished home speak for itself.

Testimonials
The strongest endorsement a builder can have comes from the families who have lived in the homes we built, the architects who have collaborated with us across many projects, and the tradespeople who choose to work alongside us again and again. Over the years, our clients have shared their experience with Poster Construction in ways that mean a great deal to us, describing not only the homes themselves but the people who built them and the way it felt to be part of the process.
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
See What We’ve Built in the Sun Valley
Our completed work in Sun Valley and the surrounding region spans a wide range of styles, sites, and ambitions, united by a shared standard of craftsmanship and a refusal to cut corners. Some are tucked into hillsides with framed views, others sit gracefully along quieter streets, and many of the most meaningful are renovations and remodels of older homes whose owners trusted us to handle their next chapter. Each project carries the signature of the family it was built for, and together they form a portfolio we are proud to share.

Our Build Services
Skilled Construction at Every Stage
Poster Construction offers a full suite of services so that whatever your Sun Valley project requires, you have one experienced team to manage it from beginning to end. New construction is our specialty, and we take great care to draw out what each homeowner needs from a space before a single line is drawn. Remodels give us the chance to reshape a home around the life its owners are living now, and renovations let us update a property thoughtfully without sacrificing what made it worth saving. For clients with their own builder or developer engaged, we also offer construction management and owner representation, lending our oversight and experience to protect your investment from the inside. Whatever you need, we’re there for you with unwavering diligence and standards.

Who We Are
Built by Hands We Trust
A home is only as good as the people who build it, and we have spent decades assembling a team we trust completely. Every Poster Construction project is led by a dedicated supervisor and lead carpenter, with our in-house crew handling the work that requires our touch and a network of long-standing trade partners contributing the specialized skills they have refined over years on our jobs. We are particular about who joins the team and even more particular about who stays on it, which is how we maintain the consistency that our Sun Valley clients rely on. When you hire Poster Construction, you are hiring the same group of professionals who built the homes in our portfolio, not a roster of unfamiliar names assembled for the occasion.
Certified green builder
Better Homes for the Planet and People
Our team includes more Certified Green Professionals than any other custom builder in Idaho, and we have made that distinction part of how we build rather than something we offer on request. Greener construction means tighter building envelopes, smarter mechanical systems, healthier materials, and decisions throughout the project that respect the resources we use and the environment we build in. For homeowners in Sun Valley, the benefits show up in lower energy bills, more consistent indoor comfort, and a home that ages well in every sense of the phrase. Sustainability has never been a marketing exercise for us; it’s part of the trade we practice.


Certified green builder
Built to Perform for the Long Haul in Sun Valley, ID
A home built to a higher standard pays you back for as long as you own it — in comfort, in lower operating costs, and in the durability that lets the home weather decades without showing strain. Our team has spent years studying and applying the building science that makes that possible, from foundation details that prevent moisture issues to insulation strategies that hold heat where it belongs to mechanical systems sized correctly for the home around them. Those decisions are not glamorous, but they are the ones that separate a beautiful home from a beautiful home that performs. Our clients in Sun Valley always receive both.
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.




