Great Northern Insulation

Insulation
Milton ON L9T 0G9
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Diane in Dartmouth
Diane in Dartmouth
0 reviews Ottawa, ON
2/10

Spray foam bay windows

GNI spray foamed the basement headers and bay windows. They had to come back as the window installer noticed insufficient thickness in spray foam. Even with this return, the rooms are colder than before with drafts! Very disappointed with the quality of this work!!

Approximate cost of services:
$4,500.00
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