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


W.H. Demmons General Information

W.H. Demmons
93 Warren Avenue
Portland, Maine 04103
207-797-4886
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 - 207-321-5871

ROOFING:
Normal business hours - 207-321-5870
After business hours - 207-321-5871

 
W.H. Demmons, Inc. | 93 Warren Avenue | Portland, Maine 04103 | 207-797-4886 | www.whdemmons.com