Tri-County Insulation, LLC

is a commercial mechanical insulation sub-contractor working with General Contractors and Facility Maintenance Specialists in Dallas, Texas and surrounding cities.


Our main focus is sub-contracting. We don’t aspire to insulate the world – we have a small crew of full-time employees with 85+ years of combined experience concentrating on our client’s needs. No job is too small – we have a $500 minimum for service calls up to a maximum job of approximately $100,000.

We are a partner you can count on to do quality work, on time and on budget.


We specialize in service calls, equipment change-outs, tenant improvement & retrofits, and insulation to protect all of your mechanical equipment, ductwork & piping.

Our experienced crews can install all types of insulation and jacketing for pumps, chillers, boilers, cooling towers, and tanks to meet your engineering specifications. We install heat trace and provide skillful on-site fabrication of removable covers for valves, flanges, fittings, pumps and other equipment.

Tri-County Proud

We take pride in completing work that looks the way it is supposed to look per industry standards and performs the way it is meant to perform by installing the right materials for the job at hand.

Leverage our experience to develop creative solutions for working in tight spaces and solving problems within your budget.


Darryl Swann

For over 30 years Darryl has worked in the mechanical insulation industry in progressively responsible roles from installer, to foreman, to project manager, to estimator, to company owner. He established Tri-County Insulation, LLC in 2003 and has successfully managed the completion of insulation projects in a variety of commercial and industrial facilities throughout Texas.

Tri-County Insulation, LLC provides the following services:

equipment INSULATION
sound reduction

COVID-19 Essential Services Provider

Tri-County Insulation, LLC supplies critical infrastructure support to industries designated as “Critical Infrastructure Segments” by the U.S. Government: Healthcare, Public Health and Human Services, Food and Agriculture, and Energy (Steam, Water and Wastewater).

During the coronavirus pandemic Tri-County Insulation, LLC employees continued to provide undisrupted sub-contracting services to our clients to maintain HVAC and commercial refrigeration equipment, water processing and treatment equipment and other mechanical insulation services to facilities which are vital to maintain essential services.

We are actively doing our part to mitigate community spread by following all local and government recommendations and our team members routinely undergo health screenings to perform work in area hospitals.


We are proud of our work.
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