- we are moving next summer in one of the communities in sugar land. i already upgraded the
insulation to the house to the BIBS system which is blown in fiberglass insulation since the
builder does not offer foam insulation. my next project, if ever the homeowners association
will allow me, my next project is to replace my AC/heating system to geothermal source. i
would like to ask if anybody knows of a reliable geothermal system designer/installer in the
houston area. your information will be greatly appreciated.