Build.
Renovate.
Restore.
Custom homes, renovations, and additions across the Denver Front Range
Quality-Driven
Craftsmanship
Transparent, Responsive
Communication
Built Around
Your Experience
Built on Honesty, Craftsmanship, and A Process That Holds Up
Cillessen Construction was originally founded by Heath's father, a commercial and residential builder in Denver. After his passing, Heath reopened Cillessen Construction in 2013 to carry the name forward, building the kind of company he'd want to hire as a homeowner.
Today, our team handles whole-home renovations, additions, custom homes, exterior renovations, and insurance restoration across the Front Range. A dedicated project manager stays on your project from the first walkthrough through the final punch list, and you'll hear back from us the same business day when you reach out.
945
Completed Projects
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4
Generation Legacy
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324
Years Combined Experience
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Services
Whole Home Remodeling
If you're going to renovate, do it right. We handle full-scale interior and exterior remodels that completely transform how your home looks, feels, and functions.
Services
Home Additions
Adding onto your home shouldn't feel like a patchwork solution. We design seamless additions that match the existing architecture so the new space looks like it was always part of the house.
Services
Custom Homes
Building a custom home is a major investment, and it requires a team that knows how to execute at a high level. We build homes with a focus on quality, detail, and a process that stays organized from start to finish.
Services
Exterior Renovations
Your backyard is where the best parts of summer happen, and your exterior is the first thing everyone sees. We build outdoor kitchens, sunrooms, decks, and sports courts. We design and build the space itself, plus the siding, windows, and exterior work that connects it back to the rest of the house.
Services
Insurance Restoration
Storm season in Colorado means hail and wind damage, and dealing with your insurance company can be more stressful than the damage itself. We're insurance claim experts who manage your claim from the first call with your adjuster through final inspection, and ensure your home is restored to pre-storm condition.
A Structured Approach Designed Around Your Project
As Featured In:
Explore Recent Projects Built With Quality and Attention to Detail
Where We Work
We work across the Denver metro and the Front Range, from whole-home renovations and additions to insurance restoration work that takes us throughout Colorado and into southern Wyoming. Wherever the project is, the standard is the same.
If you don't see your area listed, reach out. We may still be the right fit.
Our Service Area
- Denver
- Boulder
- Cherry Hills Village
- Cherry Creek
- Hilltop
- Washington Park
- Greenwood Village
- Castle Pines
- Castle Rock
- Genesee
- Littleton
- Applewood
- Arvada
- Evergreen
- Cherry Hills
- Golden
- Louisville
- Lone Tree
What Our Clients Say
"Cillessen have done several reconstruction and remodeling projects for us and have always done a superb job. We’ve worked with them for 5 years and have come to know some of the workers who have been there for years. We’ve seen them move up, get new positions and grow. They are true craftsmen and artisans. We recommend Cillessen highly."
John Schmaus
"Dylan and Kurt did a great job. Very professional job. The work looks great and it was done right. And got me those supplements from the insurance company. thanks guys"
Michael Bingham
"Excellent general contractor with top-quality workmanship. The team was punctual, reliable, and paid great attention to detail. They completed the project on time and kept me updated throughout the process. The final result exceeded my expectations. I’m very happy with the service and highly recommend them."
Ashley McKee
"I’ve had the opportunity to interact with Devon professionally and have consistently been impressed with his integrity, communication, and attention to detail. He runs a thoughtful, organized operation and clearly takes pride in doing things the right way. I wouldn’t hesitate to recommend Cillessen Construction Company to those looking for a quality contractor."
Ryan Koelling
"Devon at Cillessen is great to work with. I'm a local Realtor and I refer all my clients exterior needs to Cillessen. Not many exterior companies work with Vinly siding anymore and Cillessen does and beats the competition."
Robert Glenn
"Devon and Cillessen Construction are top notch. They honor their word and commitment to honest estimates and working with clients on insurance claims. They deserve a call if you have roofing or other exterior challenges or needs."
Holly Johnson
"Devon and Heath are incredibly competent, compassionate and capable to do more to serve their clients than anyone I have worked with."
Mark Brende
Start the Conversation
Tell us about your project, and we'll walk you through what working with us looks like. You'll hear back the same business day.