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

W.H. Demmons' highly trained staff focuses on exceeding client expectations


A Maine Roofing Company

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




General Office Hours
Monday through Friday 7:30am to 5:00pm
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Emergency Assistance Available 24 / 7
HVAC / REFRIGERATION:
Normal business hours - 207-321-5870
After business hours - 207-797-7468

ROOFING:
Normal business hours - 207-321-5870
After business hours - 207-797-7468


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We hope you look no further for a Maine roofing, HVAC, and geothermal energy company than W.H. Demmons, Inc. Our overall goal since 1914 has been to provide high quality products to our customers that will last for years. As a locally owned and operated engineering company, we've helped local businesses and residences save energy and increase the value of their properties.

We know that sustainable energy is more than a fad and we've got the numbers to prove it. Our geothermal work on the York County Courthouse resulted in a $25,000 dollar decrease in their annual energy usage, saving the local government, and taxpayers, real investable money.

We're proud to be at the forefront of high-tech sustainable solutions, but that doesn't change our commitment to individual customers. Our roofing technicians are committed to being on-site for same-day leaks and repairs. We also offer 24/7 emergency assistance in case you need urgent repairs. We stand by the quality of our work from everything from design to installation to maintenance.

For an honest and reliable Maine roofing service, come to W.H. Demmons, Inc. Feel free to review our long list of prestigious geothermal projects that span the whole state of Maine, from Colby College to Saco Island where we designed "America's first truly green train station." As a state-of-the-art engineering company that stays true to its contractor roots, you'll get the best of both worlds when you choose our company. Give us a call today to talk to our friendly and helpful staff and schedule an appointment today.

 

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