W.H. Demmons in Portland, Maine designs-builds-maintains energy efficient building systems including HVAC, Controls, Geothermal Heating and Cooling, Duro-Last White Roofs, Metal Roofs & more.
W.H. Demmons, Inc. meets all your HVAC, Geothermal and Roofing needs

Metal Roofing Maine

Why should you outfit your business or residence with W.H. Demmons' resilient flat seam copper, aluminum, or galvanized metal roofing? Maine residents do it to prevent roof leaks and premature deterioration, for the 35-year warranty, and for the same-day service from Demmons' contractors.

We carry the full line of Duro-Last "cool roof" membranes as well as multiple Firestone building products, including UNA-CLAD standing seam metal panels, which significantly reduce the carbon footprint and lower energy bills. Below are a few examples of metal roofing outcomes:

DeLorme Private Residence

In 2003, with the help of Cambridge Sheet Metal, Demmons Roofing completed the installation of a Dutch Seam, 24 ga. Mint Green steel with Mission Red steel roof for the DeLorme Residence of DeLorme Mapping. The project was so striking and impressive that is was recognized by Atas International, Inc. as one of the Residential Projects of the Year for 2003.

Harpswell Private Residence

Standing Seam Metal has become increasingly popular among homeowners who wish to reduce energy costs and maintenance
Mayall Road Condominiums

The owner of this condo chose standing seam to match an existing barn attached to the property.
View Full Version

Private Residence, Scarborough Maine

Standing Seam Metal roof systems are increasingly popular choices for coastal environments.


View Full Version

There are many reasons to invest in Demmons' metal roofing. Maine residents come to us for our recyclable and environmentally friendly roofing solutions. Because of new composite technology, you won't have to sacrifice aesthetic appeal for functionality and durability. Our materials have a longer lifecycle than most other roofing materials. Protect your family and your livelihood with a state-of-the-art roof from W.H. Demmons, Inc. If you're looking to save more on energy costs, we're also forerunners in geothermal technology and have completed a host of local projects, reducing our customers' energy bills by tens of thousands of dollars. Give us a call today and start saving!

Follow us:


W.H. Demmons, Inc. | 93 Warren Avenue | Portland, Maine 04103 | 207-797-7468 | www.whdemmons.com