gtaDesigns inc.

HVAC Design


gtaDesigns inc. specializes in Mechanical Designs for Residential & Light Commercial Heating, Ventilation & Air Conditioning for custom homes, production homes, renovations & new additions.


With over 25 years of experience, we are able to provide a fast, friendly and professional service for architects, engineers, builders, contractors, and perceptive homeowners that desire the highest quality of air circulation and comfort.



David DaCosta

Training and Certifications:


  B.C.I.N certified designer
  25 years experience
  H.R.A.I Certified for:
    Residential Heatloss/Heat gain
    Residential Duct Design
    Residential Ventilation I & II
    Intergrated Combo systems Design
    Residential Radiant Hydronics Design