Solutions for Constructing Leak-Proof Buildings
The Companies We Represent in New EnglandSpray Polyurethane Foam Insulation | BASF | Walltite: 2 lb density closed cell foam |
Spraytite 81206:2 lb density closed cell foam |
Len’s Credentials
Len Anastasi has been working in the construction industry for over 30 years in masonry, waterproofing and restoration work. He currently owns EXO-TEC Manufacturing, Inc., EXO-TEC Solutions, Inc. and EXO-TEC Consulting, Inc.
In his construction and consulting work, he has performed inspections and repairs on over 300 buildings. Len has given expert testimony in trials and reviews on dozens of legal cases.
He is a member of ASTM’s E 06 Committee, the Boston Society of Architects Building Enclosure Council, Air Barrier Association of America, the Construction Specifications Institute, and the International Concrete Repair Institute.
Book Len for your Next Event!


NO-Burn is Top Performing White Fire Resistant Paint providing fire reactant and fire-resistant coatings for wood applications, ignition and thermal barriers for polyurethane spray foam, and rated assemblies.

Polyguard® has a full line of waterproofing products as well as air barrier and roofing waterproofing products. They have been in business since 1953 and are 100% employee-owned. Their track record and commitment to quality are unsurpassed. They are a technical leader in waterproofing products.
We give you Polyguard® products, with the experience of both Gavin Associates and the technical field experience of EXO-TEC Solutions, Inc., so your waterproofing project results will be successful. Every time.

