Providing Quality Mechanical Insulation Services Since 2009

KW Specialty Services is a Mechanical Insulation Contractor servicing hot and cold systems, including commercial piping, ductwork, HVAC, and mechanical equipment.

KW Specialty Services is a union contractor employing 
highly skilled heat and frost insulators for the following:

Domestic Water Piping Insulation
Piping and Equipment Insulation
Hydronic Heating/Chilled Water
Grease Duct Insulation
HVAC Duct Systems/Interior/Exterior
Capital Heating/Chilled Water

Project Types:
New Construction
Repairs & Modifications
Maintenance Service Repairs
Free Estimates


Our team of Project Managers/Estimators have over 60 years of combined experience offering comprehensive industry knowledge and skills in the mechanical Insulation business.




In addition to our certification, we are committed to a culture of safety that is embraced throughout all phases of our projects on every job site.

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Trusted and respected for superior craftsmanship, quality materials, and exceptional service. Projects are done right and on time.

Charlotte Nisleit

Manager / Partner

6 years

Jeff Adair

Vice President / Lead Estimator / Project Manager

39 years

Lyle Boeshart

Estimator / Project Manager

39 years

Cheri Grunewald

Office Manager / Accountant

12 years

Minneapolis Airport
Target Stores
VA Medical Center
Boston Scientific
Shakopee Community Center
Minnetonka High School
Eagan Fire Station
Hennepin County Service Center South Minneapolis
Target Field
Treasure Island Event Center (Wild Practice Ice Arena)
Cottage Grove Fire Station
Northrop Auditorium
Plymouth Public Works
Cub Foods
Ordway Theater
Apartments/Senior Housing Projects
School Projects
Commercial Projects
  • 2333 Hampden Ave W, St Paul, MN 55114, USA