1400 Hotel Rd, STE. F

Auburn, ME 04210

Call For Service



OUR professional services

We provide turnkey design, installation & maintenance solutions for commercial, industrial & institutional HVAC, refrigeration & plumbing systems as well as newer sustainable technologies such as biomass, thermal, solar, and geothermal.  

Equipment Installation & Replacement

Thayer Corporation offers brand-agnostic expertise and the capacity to design, install, service and protect your mechanical assets, reduce capital expenditures, and realize energy savings. We provide solutions to keep your facility running efficiently, effectively, and safely.

Heating Systems

◊ Natural Gas, Oil, LP, Biomass
◊ Furnaces
◊ Steam Boilers
◊ Hot Water Boilers
◊ Hydronic Systems
◊ Combustion Air
◊ Air Handling Units

Air Conditioning Systems

◊ DX Systems
◊ Humidification Systems
◊ Outside Air Systems
◊ Chiller Systems
◊ Cooling Systems
◊ Cooling Towers

Engineered Design & Build

If you value time and results, Design/Build delivers on both counts.  Different from plan and spec, the Thayer team is involved from the earliest stages of a project, this allows us to ensure that all factors and variables are considered in the design; that the components are of the highest quality; that the installation is performed correctly and on time; and that your system will perform as promised. Single Sourced Design/Build is the most efficient method of delivering quality and efficiency in a construction project. It is about getting it done right the first time with a solution designed to your specific application.

Control Systems

◊ Building Controls & Automation
◊ Temperature
◊ Ventilation
◊ Humidity
◊ Refrigeration
◊ Energy Management
◊ Hydronic
◊ Pneumatic
◊ HydroCarbon Monitor

Refrigeration Systems

◊ Chillers-Recip, Scroll, Screw
◊ DX Systems
◊ Walk In Coolers
◊ Commercial Refrigeration
◊ Condenser Units
◊ Ice Machines

Custom Piping

◊ Licensed Master Plumbers
◊ Gas Piping Systems
◊ Specialty Pipe Welding
◊ Hydronic Systems
◊ Process Piping

Lighting Systems

Lighting is an often overlooked, underappreciated aspect of  the business. In reality, the importance of having the right commercial lighting is critical.  When considering the choices for lighting a commercial space, it is important to be able to determine which lighting best fits your space or use. Between initial costs, energy expenses, replacement costs, lumen output, and color rendering accuracy, choosing the ideal lighting system can quickly become overwhelming.
Thayer, LLC has devoted team members to offer you energy-efficient lighting solutions. Whether your current lighting system needs repair or you want to do a complete lighting redesign, we’re here for you.

Thayer, LLC Projects

Thayer, LLC projects range from commercial, industrial & institutional HVAC, refrigeration & plumbing systems as well as newer sustainable technologies such as biomass, thermal, solar, and geothermal.

Affiliation & partnerships

Below are just a few of our affiliates and partners that we deal with to provide the best quality HVAC and refridgeration products and services.

Get a free estimate for your next HVAC/R project.




Services Area

Proudly serving all of Maine and New Hampshire.

Hours of Operation

Monday - Friday
7:00 a.m. to 5:00 p.m.
Always On Call 24/7

Saturday - Sunday
24/7 Emergency On Call


1400 Hotel Rd, STE. F
Auburn, ME 04210



Thayer, LLC, Copyright © 2022 - All Rights Reserved  -  Web Design by Blue Gem Studios