Who We Are


Randy Gillen

Founder
Meet Randy

Our founder, Randy Gillen, was tutored by a third-generation German...

 

Randy Gillen

Position: Founder
Meet Randy

Our founder, Randy Gillen, was tutored by a third-generation German custom-home builder, who was renowned throughout the industry as a master craftsman. Drawing from more than 35 years of experience in all facets of construction, Randy is now recognized as an artisan in his own right.

In his youth, Randy spent time in Colorado visiting family, and embraced the small-town that he found here. In the mid-‘80s, he found Colorado State University to be a good fit for his education, so came to Fort Collins. In 1988, he started in the construction industry as a project manager before launching Big Horn Custom Builders in 1996.

Randy holds residential and commercial licenses in Fort Collins, Loveland, Timnath, Severance, and Windsor, along with Larimer, Weld and Boulder counties.

Today, Randy applies this hard-earned knowledge at each step of the building process. He’s there at the first conversation with a customer, straps on a toolbelt during construction, and oversees the finishing touches. He is passionate about building a quality product.

An outdoor enthusiast, when he’s not on the job site, you can find him fly fishing or mountaineering.

Todd Castor

Project Manager
Meet Todd

Todd has been with Big Horn Custom Builders as a...

 

Todd Castor

Position: Project Manager
Meet Todd

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: Meet Project Manager Todd Castor

Todd has been with Big Horn Custom Builders as a project manager – and Randy’s right-hand man – since 2006. Randy hired him not only for his incredible craftsmanship and attention to detail, but for his small-town values and strong moral compass; he is a thoroughly humble, quality person. Our homeowners appreciate him and some even bring him cookies!

Joe Hassler

Project Manager
Meet Joe

Joe grew up on a buffalo farm in Nebraska. After...

 

Joe Hassler

Position: Project Manager
Meet Joe
: Meet Project Manager Joe Hassler

Joe grew up on a buffalo farm in Nebraska. After college, he started out as a handyman, but wanted to be more involved in construction. For several years, he was a commercial construction superintendent, but then decided he’d rather work for a custom home builder who was more focused on quality than production. Randy says Joe is the perfect complement to Todd, that he knows how to get things done, and never complains.

“Our builder Randy Gillen has been a pleasure to work with during our new home build. Randy has over 30 years of experience in the industry with a background in structural engineering…he is a good listener. He was responsive to our needs consistently, making all the changes and customizations requested in a timely manner.– COLLEEN M.

Our company has developed a comprehensive process – from first contact through final finishing touches – that ensures there are no surprises. And we keep you well-informed. Our team can also help you work within homeowners’ association requirements. For your peace of mind, we are licensed, bonded, and insured.

Want to learn more about our process?

How We Work


Randy Gillen established Big Horn Custom Builders in 1996 after serving as a project manager for a custom home builder who was a master craftsman. He still gets as excited today with each new project as he did back then! Our entire team of outstanding construction professionals continues to give our clients excellent service and exceptional results. You can rely on us to provide you with attention at every phase of your design and construction project.

With hard work and positive reviews from our past clients – and over 35 years of experience in building and crafting works of art throughout the Mountain West – we have established a stellar reputation for custom luxury home construction.

Our Mission

As a leader in new builds, additions, and renovations, we aim to uphold the reputation we have earned in the community. With our keen attention to detail and “home is where the heart is” approach, we can make your dream house a reality.

Big Horn custom builders’ Trademark is our Dedication to Quality and Customer Satisfaction


We Listen and Learn

We take the time to understand your vision.

“Randy took time to meet with me and my architect during the design stage and offered cost-saving suggestions. He was on-site every day monitoring each phase of the construction. Randy was easy to work with and had great follow-up to changes and any call-back issues. I would highly recommend Randy.– CHUCK B. (RETIRED DEVELOPER)

We understand how important your new home is and take the time to really learn what you want. We can work with you to create your home’s blueprint or work with your architect.

We Make a Plan

Reach out to us for more information or to schedule a consultation.

“A key business feature that Big Horn Custom Builders offers is that there are NO surprises related to scope, cost, or schedule. Everything is laid out in detail and tailored to fit the customer’s needs before the job is started. A key business feature that Big Horn Custom Builders offers is that there are NO surprises related to scope, cost, or schedule. Everything is laid out in detail and tailored to fit the customer’s needs before the job is started.” – M. AND T. WHATLEY (OIL ENGINEER)

When you place your trust in Big Horn Custom Builders, we make a comprehensive plan that establishes the design, budget, timetable, and numerous details while keeping your budget in mind. However, we do understand that when you’re building your custom home, that there may be things you want to change, and we do our very best to accommodate those.

We offer warranties and guarantees.

We Deliver Your Dream

Can we get to work on your custom home?

“Working with Randy and his team was great. The work was professional, timely, and performed with attention to detail, even under the stresses of recent supply chain issues, to provide a quality product of which each of us is justifiably proud. I happily recommend them to anyone looking to build a new home.” – DIANE L. (RETIRED COUNSEL FOR THE MASSACHUSETTS STATE ATTORNEY GENERAL’S OFFICE)

Everyone involved with Big Horn Custom Builders is a builder, and we understand the importance of getting everything right. We take pride in the comments we receive from our customers complementing how we communicate with them through each and every phase, from design to foundation to finishing touches.

Property Purchase and Financing Assistance

We work with multiple lenders who can meet your needs including lot loans, construction loans, and construction-to-permanent loans. We would be happy to refer you to lenders (or private investors) that would best fit your situation.

Randy’s crew are amazing master craftsmen, finishing their tasks with quality and efficiency. I confidently recommend him for building anything, from Colorado mountain homes to lake homes to ultra-modern homes.

– Colleen M. (financial industry)