Customer focused services
Since 2004, K. Guller Insulation has built its reputation as a trusted mechanical insulation contractor serving the greater Philadelphia tri-state area.
Our focus has always been commercial and industrial insulation — helping contractors and facility owners improve energy efficiency, control condensation, protect mechanical systems, and maintain code-compliant installations.
From HVAC systems and piping to mechanical equipment and firestopping applications, our team works closely with project partners to deliver quality workmanship, dependable scheduling, and insulation solutions designed for long-term performance.
Kelly Guller leads K. Guller Insulation with a focus on delivering reliable commercial and industrial mechanical insulation solutions for contractors, construction managers, and facility owners throughout Pennsylvania, New Jersey, and Delaware.
As President, Kelly oversees company direction, client relationships, and the continued commitment to quality workmanship, safety, and dependable project delivery that has supported the company since 2004
Chip Guller manages the daily operations of K. Guller Insulation, supporting project coordination, estimating, scheduling, and field operations.
His role focuses on ensuring projects are executed efficiently while maintaining the company’s standards for craftsmanship, communication, safety, and customer service across commercial and industrial job sites. He helps maintain strong relationships with contractors and project partners through reliable service and quality execution.
Safety is a core part of every project at K. Guller Insulation.
Our company has been recognized with Highwire’s Gold Safety Rating as part of the Safest Contractors & Vendors for 2026, reflecting our commitment to maintaining professional safety practices on commercial and industrial job sites.
Our union-trained crews understand the importance of safe installation practices, jobsite communication, and compliance when working alongside contractors, facility teams, and other trades.
Safety is not just a requirement — it is part of how we protect our employees, our partners, and every project we support.
At K. Guller Insulation, we believe successful projects start with clear communication, accurate estimating, and dependable execution.
We work closely with mechanical contractors, general contractors, construction managers, and facility owners to provide insulation solutions that meet project specifications and scheduling requirements.
Our team delivers:
Located in Lafayette Hill, Pennsylvania, our facility allows us to efficiently support projects throughout Eastern and Central Pennsylvania, New Jersey, and Delaware.
Find answers to common questions about our services, processes, and how we work with clients across various industries.
The company is led by President Kelly Guller with General Manager Chip Guller, operating from Lafayette Hill, PA since 2004.
Yes — licensed, bonded, and insured for commercial work in PA, NJ, and DE; certificates available with prequalification.
