Welcome To Our Website

NEW! Click here for our online service request form.

Here at Guilette we offer a wide variety of products and services, in addition to furnaces and air conditioners.

As you browse our site you will see some of the superb quality products that we sell; conventional heating and cooling system,  split-ductless a/c & air source heat pump systems, geothermal and solar plus indoor air quality (IAQ) products.

We offer 24 hour EMERGENCY SERVICE, annual maintenance on furnaces, air conditioners, fireplaces, water heaters, humidifiers, dehumidifiers and a full range of plumbing services.

If you are thinking about upgrading your old system, or adding to your existing equipment, please don’t hesitate to call a member of our experienced sales staff . We will respond quickly to answer any questions you may have, and expertly prepare your FREE estimate promptly.

We hope you find this site informative and helpful. Should you have any questions, you can contact us at 920-743-2900,  or toll free 877-543-2846.  Or visit the Contact Us page.