Mark welcomes the opportunity to bid your project.

Classic Work Construction, LLC

Mark Aschwanden, General Contractor
About Us
Classic Work Construction has over 20 years experience building and remodeling in Boulder County. We specialize in custom home building and provide a full team of professionals to complete your project. Whether our client is a large architectural firm or an individual homeowner, our general contractor works onsite to ensure the same level of quality and expertise goes into every project.

Mark built his first home as a licensed General Contractor in1999. In prior years, he subcontracted and managed roofing, framing, and finish carpentry crews from 1985-1999 and gained experience working in all phases of construction.

2005 "Bluff House" collaboration with Lawrence and Gomez Architects won Home & Garden Magazine's "Architectural Showcase Contest for Best New Home in Boulder"​. See photos by Juana Gomez (also on

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Serving Boulder, Longmont, Louisville, Ward, Jamestown, Nederland, Allenspark, Lyons, and Estes Park


Michael Hoffman
Relationship: Client
Project Date: Aug 2015

Mark and Mary Lynn of Classic Work Construction are such great people to work with. I am very fortunate to have been referred to them. It is quite a thrill to watch "the project" get built: an awes... Read More

Relationship: Client
Project Date: May 2005

Mark and his team were absolutely outstanding! We had a brand new build on a complicated site, and Mark's team finished on time and on budget. They were professional, straightforward, and fun to wor... Read More

Relationship: Client
Project Date: Jun 2004

Mark Aschwanden re-built a very difficult home for us 2004-2005. "Difficult" in that the home had been built in 3 separate stages over a 60-year timeframe, and during the rebuilding we ran into signif... Read More

Lawrence and Gomez Architects
Relationship: Colleague
Project Date: Jul 2007

Mark Aschwanden of Classic Work Construction has built many of my projects. Mark was on the job site much of the time and kept a close eye on all the subcontractors. He offered useful suggestions and ... Read More

Sandy Rose
Relationship: Colleague
Project Date: Aug 2010

Quality craftsmanship with attention to detail. Mark builds homes, not houses. He is committed to service and long term relationship with each of his clients and captures their individuality and lif... Read More

Relationship: Client
Project Date: Jan 2016

I highly recommend Classic Work Construction. I was looking for a contractor to remove an EFIS exterior, replace it with a new hard coat stucco exterior, replace some windows, do some other exterior ... Read More

Relationship: Client
Project Date: Apr 2015

Classic Works Construction work with care, precision, and integrity. Mark Aschwandan personally supervises all activities on site. He designs with an eye to beauty and quality. The house that CWC cons... Read More

Relationship: Colleague
Project Date: Jun 2011

Having worked with Mark Aschwanden and Classic Work Construction for 10 years, I probably have better insight than anyone into Mark and his company. Let me just say that you couldn't hire a better g... Read More

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Licensed General Contractor
HERS Certified
ICF Certified
Green Points Certified