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Highline

Our Story

Mile High Designs was formed in 2005 as a small two man subcontracting crew. With a lot of hard work, we’ve grown into a highly rated family business with a team of valued employees and trade partners ready to transform homes throughout the Denver metro area and mountain communities along Hwy 285 and I-70.

In 2019, after a few cases of mistaken identity and a lot of consideration, we started transitioning to doing business as Highline. There are so many ‘Mile High’ service companies out there and we don’t want to be mistaken for other less than stellar competitors.

But don’t worry, Highline is still delivering the same award winning service that made Mile High Designs thrive. Contact us today and let us know how we can help you.

Our clients love us but we love them more.

Highline: Design & Build
5.0
Based on 6 reviews
powered by Google
Ashley Lercara
Ashley Lercara
01:10 14 Oct 20
Great company and great service! I moved into a new house and the deck desperately needed to be... replaced. I contacted Mile High Designs and Ray was very flexible and got me everything I needed for the project. Everyone was professional and made sure everything was done in a timely manner. A special shoutout to Christopher who patiently dealt with my constant questions every step of the way. My deck turned out amazing and I am so happy!read more
Steve Knapp
Steve Knapp
05:44 02 Jul 20
It has been about a year since our project was finished and we are still thrilled with it! Ray was... great to work with, offered many ideas and communicated well through the entire process. His crew was knowledgeable, hard working, and very efficient. They tore down our old wood deck and built a new composite one, adding a gabled deck cover and railing. We love the solid wood beams, cedar plank ceiling, Trex transcend decking (which has not scratched), and low voltage lighting that gives everything a great look after dark. It is our favorite place to go and has added so much value to our home. We highly recommend this company. Thank you Ray and your team for doing such an amazing job!read more
Riley Walker
Riley Walker
17:00 15 Jan 19
Ray and his team built a deck for us and it turned out great. The project was on time, on budget,... and hassle-free. We liked their work so much, we hired them for two more projects.read more
David Cates
David Cates
16:20 20 Aug 18
Quality workmanship at a fair price.
Dave Cates
Dave Cates
16:44 30 Oct 16
This company is the best. They have a lot of professional knowledge and get it right the first time.
See All Reviews
Highline by Mile High Designs
5.0
Based on 6 Reviews
Joni J.
Joni J.
2021-05-18 10:22:52
Selling reviews Yelp, googleWe write reviews, promote your companiesGuaranteed confidentiality and quality of reviewsAll accounts of real users, with...
Rexford H.
Rexford H.
2020-03-26 19:07:52
The bid process of getting a new deck was frustrating and exhausting to say the least. I recieved 8 bids ranging from 28k to 65k all giving me a wide...
Cooper S.
Cooper S.
2017-12-10 12:56:18
I've been looking for an honest, straight forward and talented contractor and the name Mile High Designs kept coming up. Took a look at the website and...
E M.
E M.
2013-03-17 11:09:39
Ray Dertz and Mile High Designs completed a 500 sqft covered patio to our home in the Summer of 2012. From the beginning of the project to months after,...

Best of Houzz 

Since 2016
Ray Dertz in Littleton, CO on Houzz
Ray Dertz in Littleton, CO on Houzz

Check out what we're building in your neighborhood.
What can we build for you?

Testimonials from our wonderful clients.

Thoughtful design. Thoughtful customer service.

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Complimentary project management software on all projects.

  • 24/7 access to project details on Buildertrend site and app
  • Secure messaging
  • Progress photos
  • Scheduling calendar

 

The Highline Team

Ray Dertz

Owner &

General Manager

BEN CAMPELL

On-site Project Leader

All of our employees are covered by workers comp coverage.

We're open for business!

What can we do for you?

2021 SUMMER UPDATE: Highline has never been busier. We’re currently scheduling several months out but we’re working as fast as we can to accommodate more clients. We do not cut corners by using subpar subcontractors or rushing our employees. We know that homeowners who choose Highline prefer their projects to be completed correctly, not just quickly.

Highline: P.O. Box 631596 Littleton, CO 80163

P: 303-503-5597

F: 720-362-5214