W.H. Demmons

We are very proud of our team for wrapping up a major geothermal modernization project.

This was no small job—upgrading a system powered by sixteen open-loop, 1,200-foot wells. The project included installing sixteen Lakos separators to reduce sand buildup and protect equipment, along with sixteen new heat exchangers to boost efficiency and improve system performance.

Complex, large-scale work like this takes serious planning and execution—and we’re proud to bring it across the finish line.

It’s always a good day when our big kids get to play with big cranes.

Huge thanks to our friends at Cote Crane for helping us set four large rooftop units in downtown Portland today. It might be a little cold, but with blue skies and sunshine, we’ll take it.

Proud of our WH Demmons crew for getting it done safely and professionally. Great work all around!

The calm before the storm.
These photos were taken last week — just before yesterday’s blizzard rolled through.

Here are a few shots from our exciting new project: the Maine State Credit Union branch currently under construction in Belfast.

Our team is handling the full mechanical and plumbing scope. We’re proud to service many of their existing facilities, and we’re always grateful for the opportunity to help build one from the ground up.

We’ll be sharing more updates as the project progresses!

Construction is well underway at the Cape Porpoise Bait Shed. It’s been a stretch of frigid weather, but today gave us a beautiful break, and our crews are making great progress on both the mechanical and plumbing work.

This is going to be a fantastic project when it’s completed — and without a doubt one of the best views we’ve ever had from a jobsite.