ScienceTeacher says,

Theodor provided a well written report for heating and cooling loads quickly.

for Heating and cooling load calculations on Dec 22, 2014

Edwin 5 says,

Good - Professional way of working with Theodor, fast replies on (extra) request, good experience

for calculations for cooling system on Oct 11, 2014

Cactus-Joe says,

Good work and on time completion

for Plumbing Estimate on Dec 18, 2013