I have used this company for various projects up to about 12 years ago (when they were operating under a different name but the same owner, Peter Tanas....)My most recent project was ICF done in several pours at different temperatures. I relied on them to get the right product/slump. They assured me they knew the product - and they were right! Their pump man Dave also offered much useful advice during the pours. Very helpful and the end results were excellent.