Redcastle Builders, Inc. are experts in designing and building the home addition of your dreams.  They have the skills and experience to completely transform the look and functionality of your home.

Redcastle Builders works with you to design the perfect space to unwind and enjoy your home. They assign a project manager to work with you throughout every stage of your addition design and build. While they’re building your new addition, you’ll see each of your ideas come to life before your eyes. They take pride in their work and know there is no one in the Metro area that can compete with them on value or quality of work.

A well-designed addition should feel comfortable and open to making the memories you have dreamed of. They know how to incorporate beautiful finishing’s that create a unique space, making it like no other. Whether it be a man cave you are looking for or an entertaining area with space for games and a bar, Redcastle Builders can meet your needs.

Redcastle Builders takes great care with every project. They use only quality materials. They are licensed contractors with the skills and experience to deliver the home addition you expect. The Redcastle Builders design/build methodology ensures your addition is compliant with city codes.

Their mission is to provide professional, honest, creative, customer-focused, and value-based services in the Denver Metro market and look forward to creating the addition you have always wanted. Call them today!

Services Offered:

  • Additions
  • Bathrooms
  • Decks
  • Basements
  • New Homes

Google Reviews

Redcastle Builders, Inc. Rating: 4.8

Mark Ursich

Jan 26, 2023
I can't say enough about Scott, Mike and the team for the entire rebuilding experience. Red Castle listened to my needs to remodel […]

Paul Basile

Apr 01, 2024
We hired Red Castle Builders for a complete kitchen remodel and a year later for a remodel of a full bath and half bath. […]

Mark Patterson

Jun 11, 2020
Redcastle Builders designed and built our "wind wall" for our covered patio. Cyrus and Mike did a great job; it is exactly what we […]

Sandy Hamilton

Apr 05, 2023
Red Castle Builders is an excellent company for a home remodel. They were great from start to finish. Red Castle remodeled our kitchen, painted […]

Tina St. Cyr

Oct 15, 2020
We recently purchased an older home and decided to do a whole home remodel. We are so happy we made the choice to use […]

27 Recommendations

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Redcastle built a fantastic deck and patio for us. They were on time, kept their promises, reasonably priced, and did great work. They corrected their one glitch without question or complaint. We are really glad we hired them.

Scott Shea
  • We hired RedCastle Builders to enlarge our deck. We had 3 estimates, and this bid was not the lowest, but we are very happy we chose this company. We worked with Scott Phillips. After getting the bid, Scott came out again and walked the property and we discussed some changes. He was extremely easy to work with and promptly answered any questions. Scott worked with the city on getting the permit as well as the HOA. There were two builders who were here every day on time. They were hard workers and very responsive to any issues that came up. The entire experience could not have been better. We highly recommend this company.

    Cynthia Reusswig
  • RedCastle did a great job on our deck. They got the project started quickly and the whole team was a pleasure to work with. The Deckorators decking product they recommended was just what we were looking for. John and Mike made sure everything was done efficiently and we couldn’t be happier with our experience with the company.

    Mitch Yergert
  • We used the Renew and Reseal for concrete, which is a division of Redcastle. We found them to be professional, and responsive to any questions or concerns regarding the project. The professionals were hard working and very pleasant to work with. Camber, the project lead was delightful. She personally followed up daily on the work and timeline during the process. She actually came out to help when there was a delay due to weather and the wasp nest we found just as the project began. Our concrete turned out beautiful, I highly recommend this business!

    Bev Maestas
  • I can't say enough about Scott, Mike and the team for the entire rebuilding experience. Red Castle listened to my need to remodel my tired 90's kitchen into something absolutely stunning and functional. They gave me several options that worked within my budget and kept within those limits. During the entire process, they notified me daily about schedule and worked diligently to stay on timeliness. They cleaned up everything to the point it didn't look like a major construction job even took place. I highly recommend Red Castle for your next kitchen remodeling project. They are top notch!

    Mark Ursich
  • We needed a contractor who could do some real engineering and not shy away from a 130-year-old Victorian that needed a significant lift and the leveling of a slanted and sagging porch balcony that was pulling away from the house. They sent their A-Team, Cyrus, and Mike, who figured out how to level the porch by building in supportive masonry, and engineering a drainage system that was internal to the balcony's floor, while keeping the new floor level. Genius. Now my wife and I can enjoy evenings overlooking the neighborhood, enjoying our view, whereas before it was risky for more than one person to venture out. Choose Redcastle if you need something specialized, done on time--for a competitive price.

    Don Zimmerman
  • We wanted to build an extension to our front entry creating a covered porch. It’s gorgeous and was done quickly and within budget! A beautiful transformation that made our home unrecognizable. They definitely stepped up when others couldn’t. I highly recommend Redcastle Builders!

    Danielle Kidd VonFeldt
  • We recently purchased an older home and decided to do a whole home remodel. We are so happy we made the choice to use Redcastle Builders. We had a vision and expectations of turning our 70's house into a modern home. Redcastle far exceeded our expectations! John, Scott and team were professional and knowledgeable. They were helpful, making suggestions that would suit our needs and budget. The quality of work was top notch. We are so pleased with our home renovation and highly recommend Redcastle Builders!

    Tina St. Cyr
  • Highly Recommended!

    Aaron Smith
  • Five stars!

    Lindsey Armstrong
  • This company was amazing! Very professional and patient! They walked me through the whole process and answered every question I had! Debbie was so great with helping me put together exactly what I wanted and had such good ideas! I would use them again in a heartbeat and have already referred them!

    Heidi Grijalva
  • Redcastle Builders designed and built our "wind wall" for our covered patio. Cyrus and Mike did a great job; it is exactly what we wanted. We love the mountain views from our house, but we get some crazy winds. Not only does the wall reduce our high wind issue, but it transformed our patio into a more intimate "viewing room" of our Colorado mountains.

    Mark Patterson
  • Scott and his team at Red Castle were complete professionals. From the first call all the way through the final inspection our project was handled with care and respect. Everyone who visited our home was courteous and polite they worked well with our family dynamic and really gave us a 5 star experience. Our work with Red Castle Builders made a huge difference for our family, most of all, my wife was pleased with the quality and outcome of the project! Please extend our highest recommendation to Scott and his team at Red Castle Builders.

    Jasper Armstrong
  • Good Quality is an understatement. From design to completion this company was a joy to work with. It was amazing all the small details that were done to go beyond my expectations, and I have high standards. I have a beautiful custom deck and pergola that my whole family enjoys. I look forward to working with them again.

    Snow Creek Ranch
  • I commend Scott for returning my call quickly and being very willing to try and help me out even though they were booked up. I needed a very quick deck repair for a home sale and time was running out. Turned out I found a deck person who had immediate availability so I did not use Red Castle. Scott even followed up with me to make sure I got taken care of. These guys are definitely on my list "Who to Call " for future needs.

    Lori Perry
  • We had several contractors come out to look at a failing deck support. Redcastle's plan was the most thorough, safety oriented, and the quality of the job was exactly what I expected; excellent. They even got done a day ahead of schedule, and fixed a couple little (non-quoted) things while they were at it.

    We'll be using Redcastle for all construction jobs in the future.

    James Lavoy
  • Scott and his team did a fabulous job on our basement! His team was very professional and they took measures to keep the rest of our home clean during construction. The quality of the work is top notch, his pricing is fair, and we’ve had numerous compliments on the work. Thanks, team!!

    Kristi Hamid
  • Scott and his team did a fabulous job on our basement! His team was very professional and they took measures to keep the rest of our home clean during construction. The quality of the work is top notch, his pricing is fair, and we’ve had numerous compliments on the work. Thanks, team!!

    Kristi B.
  • I can't say enough good things about Red Castle Builders. Scott and John were professionals and their attention to detail was second to none. I highly recommend them to any homeowner that is looking for a contractor they can trust.

  • RedCastle Builders offers a team of professionals that help create luxury home remodels. Cyrus and his team turned my basement into a lovely master retreat with great lighting and a practice layout. They are professional, dependable and completed the project in a timely manner.

    Heather S.
  • The team worked with us to really listen to our needs. They helped identify the right solutions for our house and our budget. We now have amazing new floors, new lighting and a re-designed kitchen island. If you need to re-model look no further than Redcastle.

    P. Valentine
  • Redcastle builders finished our basement for us and we couldn’t be happier! The team was very professional, nice and easy to work with. The communication is thorough and timely. The results were amazing! All of the finishes are beautiful, the bathroom and living space is fantastic. Redcastle builders was able to design a really efficient use of our small basement – we are so happy with the results. Thank you!!

    Marren M.
  • We had used RedCastle Builders for extending our deck and were so happy, we hired them for our basement project. Scott and his team were with us for every step of the process. They made suggestions that were very helpful to us. All of our requests were handled with no problems or issues. If you’re looking for professionalism at it’s best, RedCastle is definitely worth looking in to!!

    D. Werner
  • Phenomenal remodel support – they listened to our needs, helped with suggestions and pulled the right people together at the right time. We have beautiful new floors, a new kitchen island and new lighting. Thank-you to this amazing team!

    Pam V.
  • We were looking to get our deck extended and contacted Redcastle Builders. We received our estimate and quickly contracted Scott to start the project. He and his team were very professional and timely. They answered all of our questions thoroughly. We were so happy with Redcastle Builders for our deck, that we have contracted them to finish our basement.

    Denise W.
  • We highly recommend Redcastle Builders as a outstanding contractor business. Our drywall garage project was professionally completed in a timely manner at an affordable price point and resulted in garage walls that match the interior of our home.

    Robert A.
  • If you’re looking for a deck contractor, I highly recommend Cyrus Schoonover, Redcastle Builders. After receiving the names of four different contractors from our local lumber Co, I interviewed all four and selected Cyrus. I was very impressed with his knowledge, recommendations, and confidence to build us a quality deck. His estimate was fair and well within the industries pricing scale using the best quality materials on the market. He surrounds himself with family member helpers who work as a skilled team. They are friendly, courteous, neat, and knowledgeable and a joy to watch as they construct a solid first class product. Our property backs to open space with walking paths. It was amazing to have many of the walkers and joggers stop, chat and comment about our new deck. Upon their requests I shared Cyrus’ information with them since they were also looking for a deck contractor. We are very happy and pleased with our new deck and highly recommend Cyrus (Redcastle Builders) for your future projects.

    Joe & Barb
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