top of page

Who is ISM?

Integrity Services of Maine is a family owned company based in Poland Spring. The company was started in 2017 by Bill Bouchard, who has over 20+ years of experience in the field. Although there are many HVAC companies in Southern Maine, Bill saw a need and wanted to provide a higher level of professional, ethical, and quality service to the greater L/A area.

In 2021, ISM was able to relocate their shop in Poland to their new shop on Minot Avenue in Auburn


We have a passion and drive for the work we do. We perform installations and repairs on refrigeration, heating and cooling systems. Our niche is cutting-edge high efficiency equipment. We work with both commercial and residential customers. Our goal is to leave a lasting impression with all our clients, no matter the size of the job.


We are very involved in our local communities. Check out our Instagram and Facebook page to see what we’ve been up to lately!


Each and every job is met with an extensive background in commercial & large residential  installations and service work.  Integrity Services of Maine was formed and is led by Bill Bouchard, an expert on mechanical systems with over 20 years of experience. 


Stay ahead of the curve with industry leading products, innovative  installations, and unique services that fulfill your unique needs. We're prepared to undertake projects ranging from large scale residential installations to commercial installations, service work and repairs.


We install, repair and maintain cutting edge, high efficiency heating, air conditioning, ventilation and refrigeration equipment, both commercial and residential.

We are a Mitsubishi Electric Diamond Contractor

and a Heat Craft Certified Contractor


Excellence in every detail - even those unseen! 

When you hire ISM you can be assured that the work will be done right the first time, using quality parts & materials. This is extremely important to us as a company. All work is backed by an industry leading  2 year warranty!

Businesses and manufacturers we partner with

Simons logo.png
Mitsubishi logo.jpg
FWWlogo_color (002).jpg

Our Clients

Here are just a few of our amazing clients, for whom we have done everything from full installs, servicing, to general contracting

Town of Poland.png
Poland Provision logo.jpg
Revelation Massage Logo.png
Dairy Queen Logo.png

"Matchessly striving for perfection and professionalism. Great to work with and easy to be around. My business is a forever customer of ISM."

- Chris Morrison
Northe Woodworking

Ready to start a project?

We are too! Fill out the form below and we'll contact

you very soon.

bottom of page