Marshall Insulation blew attic insulation and sealed the ductwork of the HVAC system on the property. Gil Franco was the salesman and he did a good job highlighting Marshall's services, but also pointed out ways to make the house energy efficient on my own. The work was coordinated through a rebate program from SRP. Gil was very helpful with the paperwork. We received our rebates without hassle. The installation crew was very methodical and did a thorough job cleaning up when finished. I took several bids on the job. When taking into account the SRP rebate the bid from Marshall put it in the middle of the range.