Our Team

Andrew Haas

Managing Member


Andrew Haas founded HCM in 2003. Prior to founding HCM, Andrew had worked for the construction arm of two prominent commercial developers based in NJ for over 15 years in various capacities starting as a tradesman and ultimately becoming a Senior Project Manager. During the course of his career, Andrew has contracted and managed several million square feet of new building construction as well as large scale commercial renovation work both inside and outside of New Jersey. He attended New Jersey Institute of Technology and possesses a degree in Engineering Technology. His extensive experience in all facets of construction and project management allow him to foresee problems and address them prior to allowing them to adversely affecting a projects outcome. Outside of work, Andrew enjoys spending time with his wife Tracy and his daughter and son (Jamie and Ty). He is a competitive runner, enjoys working out, the outdoors, his family pets and coaching hockey, roller hockey and baseball.

John Mangler

Sr Project Manager


John joined HCM in 2011 as a project manager with over 20 years of management experience. Prior to HCM, he worked ten years as a project manager/foreman for a contracting and consulting firm that specialized in the food service industry. This position provided him with valuable experience in all phases of construction from planning and ground breaking to completion and grand opening. In addition to his construction experience, John brings an extensive customer service background. This has enabled him to work with his customers to deliver exactly the product they want. When John is not at HCM, he can be found in Waldwick with his wife Julie and his three young children Ellie, Korie and Will. Their days stay busy with softball, soccer, biking and swimming.


Frank L. Conti

Chief Estimator/Project Manager


Frank joined HCM in January 2014 to head up the Estimating Department and handle the day to day bidding. With over 35 years in the construction industry, as an estimator/project manager for both mechanical and general contractors, he brings a wealth of knowledge in all disciplines of construction. A carpenter, by trade, Frank learned his craft from his father early in life and knew construction would become his career. When not at HCM, Frank enjoys building boats or spending a day with his wife Donna, daughters Janna & Kate and his grandchildren Gina & Alexa.

Chick Di Ambrosio

Project Manager


Chick has over 51 years of construction experience and has worked on a multitude of diverse projects ranging from golf course construction, schools, pharmaceutical manufacturing, logistical warehouses, packaging facilities, to residential and commercial office buildings. He has completed projects throughout the United States including; Michigan, Maryland, Florida, Virginia, California, North Carolina, Georgia , Washington DC, New York, Connecticut, Arizona, Oklahoma , Texas and New Jersey.

Chick began as a Tenant Renovations manager for the Bellemead Construction Corp, then went to The Gale & Wentworth Development Corp as a Vice President of the Construction Division. He handled the entire Pane Weber, Morgan Stanley portfolio consisting of over 500 tenants covering some 12,000,000 square feet of office and/or warehouse space in four states. Chick has since been acting as a free-lance Construction Consultant and/or Owners Representative for the landlords or directly to tenants.

Chick brings an incredible wealth of industry knowledge and relationships to HCM, as well as strong leadership. Chick serves on the board of directors for The Community Food Bank of New Jersey over 18 years, and also assists a group called Golf Supports Our Troops in building putting greens at VA hospitals. Chick also served in the US Marine Corps, and is also a member of The Marine Corps League.

Ethan Hoff

Project Manager


Ethan has been with HCM since 2009. He started at first, working summers and breaks throughout college. After graduating from Bloomsburg University in 2013, Ethan began contributing his efforts at HCM full time. Ethan brings a positive attitude and fresh perspective to the team, which has enabled him to contribute to a number of very different types of projects. He has been involved with pharmaceutical clean room renovations, multiple tenant improvements, and site projects. When Ethan is not working at Haas he enjoys playing his guitar and being outdoors.

Evan Hoff

Project Manager


Evan started with HCM at the age of 16 in 2009, working summers and weekends. From 2010 to 2014 he spent nights working towards his Engineering Degree at NJIT and during the day was a full-time Assistant Project Manager for a large residential developer. He managed a 20,000 sf addition to a commercial building in Parsippany, as well as oversaw a 500,000 sf multistory residential development. He now contributes his efforts full time to HCM estimating, managing his own portfolio of projects, and providing project oversight. When Evan is not at work, he enjoys being outdoors and going down to the shore.

Colleen Burlew

Project Manager


Colleen joined HCM in 2015 as a project manager. Colleen began at Gale & Wentworth in 1995, where she remained for ten years. She then took a project management position at The Walsh Company/Avison Young where she remained until 2014. Colleen is a results-driven project manager with proven ability to coordinate project details and manage personnel for superior client satisfaction. She is a detailed and organized project manager with more than 10 years’ experience managing tenant interior renovations and construction projects. Diligence and effective communication has resulted in respect from all associates, owners, tenants, etc and has also resulted in long-term relationships and repeat business. She has a proven track record for completing projects on time and within budget. When Colleen is not at HCM, she can be found in Hopatcong with her husband Tim and their four children Ashley, Brittany, Jessica and TJ. Their days stay busy with softball, baseball and basketball.

Tracyanne Haas

Office Manager


Tracy started at HCM in 2004 and is responsible for oversite of all internal procedures and general office management. Prior to joining HCM, Tracy was self-employed and has vast amounts of experience in business accounting and administration. Away from work, Tracy spends time with her family and is active in management of her son’s hockey team.

Lydia Hoff

Contract Administrator


Lydia started with HCM in April of 2015. Prior to working with HCM she worked with accounts payable for Prism Property Services. Lydia is currently pursuing her accounting degree at Montclair State University. When she is not at work, she spends most of her time studying. She enjoys being outdoors and being at the beach.

Keri Kublin

Assistant Project Manager


Keri joined HCM in 2015 as an assistant project manager with over 5 years of experience in the commercial construction industry. Prior to HCM, she worked for Avison Young (formerly The Walsh Company) first as an assistant project manager where she primarily provided assistance on a 280,000 sf out of the ground corporate headquarters project in Monmouth County, NJ. She then transitioned to a senior accountant role where she was responsible for all of the project accounting for their several offices. During her years there, she gained valuable field experience and knowledge in construction accounting, client management, financial reporting and contract administration. Her attention to detail, commitment to deadlines and ability to multi-task make her an effective and valuable resource. Keri has a Bachelor of Arts degree from Rutgers University. When Keri is not at HCM, she can be found in Caldwell with her partner, Ryan, and their daughters, Kylee and Fiona. They enjoy spending time at local art parks, playgrounds, new restaurants and movie theatres.


Kevin Wentworth

VP of Business Development


Kevin joined HCM in 2014 as the Vice President of Business Development. Kevin joined HCM with over 20 years experience in the industry. Prior to joining HCM, Kevin worked for large developers, such as Gale & Wentworth. When Kevin is not at HCM, he enjoys spending time with his large family and visiting his two daughters in California and Colorado.

Nick Giordano

Project Executive


Nick joined HCM in 2015 as a Project Executive. Prior to joining HCM, Nick was a Project Executive for Mack-Cali, running projects all over the metropolitan area. When Nick is not at HCM, he enjoys spending time with his two sons, playing golf and attending sport events.


Sal DiCola



Sal has been with HCM since 2007 and is charged with overseeing HCM’s field crews as well as performing the most skilled trade work. Sal has been in the construction industry for over 25 years and is an expert craftsman, mechanic, and team leader. While away from work, Sal spends time with his wife Jane and their children Brian, Nick, Jill and Michael. Sal enjoys fishing and coaching travel soccer. He is also involved with coaching the robotics program in his local high school.


Fernando Da Silva

Assistant Superintendent


Fernando joined HCM in January of 2015 as assistant superintendent, helping to oversee jobs in the field and also managing self-performed projects. He started working in construction at 19 years old and has experience in mechanical, concrete and carpentry trades, all while developing multiple skills in diverse fields and specializing in steel framing. He is multilingual (fluent in English, Spanish and Portuguese.) He is a big sports fan, following the NY Yankees, the NY Jets, and the NY Rangers whenever possible. Spending time outdoors with his family, and reading are his favorite pastimes.

Jeffrey Ryan

Assistant Superintendent


Jeffrey joined HCM in 2015 as an Assistant Superintendent. He began his career in the construction industry surveying for his family’s business, Dykstra Engineering, at the age of 12.  Moving forward through high school he worked for a residential construction company, Neiman Builders, he became efficient and was continually promoted.  Once old enough he enrolled as a Local 40 Structural Iron Worker.  Completing his apprenticeship, JAC IW LOCAL 40&361, he found himself working on projects such as the Tower 1 World Trade, Columbia Presbyterian Hospital, Grand Central Station, Alexander Hamilton Bridge, Fulton Street Station, & The United Nations.  Now a new father and employee of HCM Jeffrey spends his time off pursuing his degree in engineering and enjoying time with family and friends.

Alex Petronijevic



Alex comes to HCM as an expert carpenter and supervisor. With over 20 years’ experience in the commercial construction industry, and having worked for some of the state’s top developers. Alex brings a level of skill and leadership which is consistent with HCM’s standard of excellence. Alex enjoys spending time with his niece and nephew, watching them cheerlead and play football. Alex and his wife recently had their first child.

Dave Wilkinson



Dave joined HCM in 2014 as a superintendent. Prior to joining HCM, Dave spent four years in the military. After the military, Dave went into commercial construction, working as a traveling superintendent for a multi-retail construction business. Dave comes to HCM with many years of experience in the industry. When Dave is not at HCM he enjoys spending time with his wife and two daughters.

Joe Osgood



Carl Edwards



Al Seifert



Joe Pellerito



Enrique Romero