Company Profile

Established in 1989, Achen-Gardner Construction is led by Dennis Troggio (Chief Executive Officer) and John Walstrom (President and General Manager of Operations). Together they have shaped the firm into the industry leader it is today.

Dennis and John take great pride in the organization they have built and the quality pre-construction and construction services their teams provide. Evidence of our distinct company culture can be seen in the level of trust and respect our clients have for us and the pride our employees take in being part of the Achen-Gardner Construction family.

Well established in Arizona, we continue to expand our operations and are also licensed in Colorado and New Mexico. Our firm is poised and confident in our ability to deliver the same high level of service and quality throughout the southwest.

Our mission

To be the preferred provider of public and private infrastructure management and construction services.


Achen-Gardner Construction will be recognized by clients and employees as fair, honest and professional; the contractor of choice. We will foster an environment and culture which encourages both personal growth and development, and appreciates the unique contribution of each individual.

Achen-Gardner Construction is committed to adding value to our clients’ projects and building long-term partnerships by ensuring a safe workplace, responding to market conditions, improving job site productivity, and utilizing the latest technology. We will be guided by the values of honesty, trust, integrity, fairness, loyalty, and hard work. Our reputation depends on:

• Serving as advocates for our clients
• Providing innovative and creative solutions
• Completing our projects on time and within budget
• Keeping our word ...“We do what we say we will do”