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 prides itself on its highly trained staff dedicated to designing, installing and maintaining energy efficient building systems


W.H. Demmons Staff Directory

Douglas Martin, P.E
President - W.H. Demmons, Inc.
Over 29 years in the HVAC industry
207-321-5863

dmartin@whdemmons.com
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Background
and Experience

Mike Dupuis
Sales Engineer - Vice President of Service
Over 15 years in the HVAC industry

207-321-5885

mdupuis@whdemmons.com

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Background
and Experience

Dan Campbell
Roofing Sales Engineer
Over 6 years in the roofing industry

207-321-5883

dcampbell@whdemmons.com

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Background
and Experience

Christian Gagne
Shop Foreman - Portland Sheet Metal
Over 10 years in sheet metal work

207-321-5873

cgagne@whdemmons.com

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Background
and Experience

Paul Goode
Sales Engineer - HVAC Division (Maine Air Construction)
Over 9 years in the HVAC industry

207-321-5887

pgoode@whdemmons.com

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Background
and Experience

Carl Piirainen
Controls Specialist - HVAC Controls Division
Over 14 years electrical experience / 6 years in the HVAC industry

207-321-5865

cpiirainen@whdemmons.com

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Background
and Experience

Jarod Richard
Engineering Technician/Estimator - Demmons engineering

207-321-5875

jrichard@whdemmons.com

 
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Background
and Experience

Mike Richard, P.E.
Mechanical Engineer - Demmons Engineering

207-321-5882

mrichard@whdemmons.com


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