About All Seasons


All Seasons Construction (ASC) was incorporated in 1973.  The founding partners set out to become a versatile and quality-conscience company able to provide a high level of service on a diverse range of projects.  This is still the basic philosophy we follow today.

ASC has a diverse portfolio which includes medical facilities, historic restorations, commercial and residential projects, institutional projects and renovations of all types.  We work closely with our customers and design professionals to ensure a successful outcome.


  • Respond to the customer’s needs and communicate effectively
  • Honor commitments
  • Provide the highest level of craftsmanship
  • Commitment to personnel training
  • Partner with the best trades people in the industry
  • Establish and maintain safe working conditions for our employees, customers and the general public

Brief History

All Seasons Construction Corp was founded in 1973 by Jack Hake and Harry Kossakoski who had worked together previously. Their diverse talents complimented each other, and the company enjoyed rapid growth and success.

In the late 80’s, Ted Chivers and Ed Huber, who had been with company since 1974, were brought into the business as vice-presidents to eventually succeed the founding partners. Harry retired in 1991 and Jack in 1996 and Ted assumed the position of President, and Ed of Vice President. They also complimented each other in their diverse talents. Ed subsequently retired in 1998, leaving Ted as sole

Dave Dancosse came on board in 2006 with significant experience, having owned his own construction business for many years. Dave fit in well with his work ethic and shared philosophy and it became apparent that he was well qualified and interested in becoming the next owner. The company was sold to him in 2014.

Our Experience

All Seasons Construction Corp. has been doing business in the same location since 1973. We have 47 years of experience in Commercial, Institutional, Residential and Historic Preservation projects. We also do Municipal water and wastewater projects as well as private water projects and offer pre-engineered steel buildings for specific projects.

All Seasons Construction Corp. is a General Contractor/Construction Manager serving the Connecticut Valley region and beyond. We specialize in the Design-Build format, for both residential and commercial projects, providing a turnkey project. For residential applications, we offer General Contracting/Construction Management and Design/Build services for complete houses, start to finish, renovations, additions, kitchens, bathrooms and small repairs.

“Banwell Architects has worked with All Seasons Construction for decades and only have great things to say about them.  They have a tremendous amount of experience with different building types, have great employees and are honest and have a hard-working work ethic.  We would highly recommend them for any type of project.”

~ Ingrid Nichols, President, Banwell Architects

Our Management Team:

David Dancosse, President

Dave came to All Seasons in 2006 and was responsible for overall management of the company as Operations/Project Manager. In 2014, he purchased the company from Ted Chivers. Dave has been in the construction industry for 41 years and currently over sees the day-to-day operations of the company while balancing estimating, project management and business development.

Edward H. Chivers, Chief Operations Officer

After graduating from Vermont Academy and stints at the University of Vermont and the US Army in the late 60’s and early 70’s, Ted Chivers Joined All Seasons Construction Corp in 1974 as a carpenter and became part of the ownership group in the late 80’s. Ted remained an active participatant in day-to-day operations on a part-time basis until fully retiring at the end of September 2019. He continues to support the company and maintain his ties in a consulting role today.


Bonnie Milliken, Office Manager / Bookkeeper

Bonnie Milliken came to All Seasons in 2010. She manages the office while performing clerical, accounting and support to project managers. She is the glue that holds it all together at All Seasons Construction.

Butch Stearns, Project Manager / Estimator

Raymond “Butch” Stearns came to all seasons in 2019 when Dave coaxed him out of retirement. Butch is well known and well-traveled in the construction industry with over 54 years of service in various roles
such as project management and estimating to name a few. Butch’s role at All Seasons isn’t much different as he handles both of those roles presently.

Field Personnel:

Our crew are the front line and backbone of our organization. They are the loyal folks who, day-in and day-out, in good weather and bad, perform the tasks that become the finished products that are the reason for our existence.

All Seasons employs a field staff of Site Superintendents, Carpenters, Carpenter’s Helpers and Laborers that have the experience and skills to see your project from start to finish.

Safety Program:

Lead Safe EPA-Certified Firm

All Seasons Construction has an intensive Safety Program that strives to provide a safe working environment not only for our employees but for Subcontractors, Owners and all associated construction individuals that need to enter the work site. We have a strong orientation process that prepares an employee to work in a safe manner that also teaches the basic OSHA 10 guidelines. We take pride in worker safety and work with VOSHA to keep a safe working environment.

We’re hiring! Join our team.