Customer focused services
K. Guller, LLC performs nine mechanical insulation services for commercial and industrial projects: HVAC insulation, pipe and plumbing insulation, mechanical equipment insulation, heat and frost insulation, firestopping, acoustic insulation, spray foam installation, asbestos removal and abatement, and removable insulation blankets. All work is performed by union Heat & Frost Insulators across Pennsylvania, New Jersey, and Delaware, on new construction, retrofit, and maintenance scopes.
Duct wrap and rigid insulation for supply, return, exhaust, and grease duct systems, specified to meet IECC/ASHRAE 90.1 R-value requirements.
Fiberglass, elastomeric, cellular glass and other types of insulation for domestic water, hydronic, steam, condensate, process piping, cryogenic, and refrigerant piping.
Insulation for boilers, chillers, heat exchangers, tanks, pumps, and air handlers — including board, blanket, and sprayed systems with finished jacketing for mechanical rooms and exposed locations.
The core trade: hot-service systems (steam, high-temperature hot water) insulated for energy and personnel protection, and cold-service systems (chilled water, refrigeration) insulated with continuous vapor barriers to stop condensation and corrosion under insulation.
UL-listed penetration firestop systems that restore the hourly rating where pipes, ducts, conduit, and cable trays pass through fire-rated walls and floors — documented per system for the AHJ and life-safety closeout.
Lagging and acoustic treatments that cut mechanical noise transmission on the exterior of duct piping and equipment.
Thermal and acoustical applications on walls, ceilings, and equipment.
Custom-measured, reusable blankets and jackets for valves, flanges, strainers, and equipment that need repeated maintenance access. Off in minutes, back on in minutes — no more bare valves after the first service call.
Safe removal and abatement of asbestos-containing insulation on piping, boilers, tanks, and ductwork, performed by trained, certified crews in accordance with federal and state regulations.
A typical scope covers Division 07 and Division 23 insulation spec sections — 07 21 00 (thermal insulation), 07 84 00 (firestopping), 22 07 00 (plumbing insulation), and 23 07 00 (HVAC insulation) — bid from your drawings and delivered on your schedule.
Send the drawing set, the insulation spec sections, and your bid date to estimating through the quote form or at (610) 941-9394. Bids reference the specified ASTM materials and ASHRAE/IECC thicknesses line for line, so scope comparisons are apples to apples. Crews are union Heat & Frost Insulators (Locals 14, 23, 38, 89), and the company carries the bonding and insurance GCs require — prequalification packages available on request.
Find answers to common questions about our services, processes, and how we work with clients across various industries.
The Division 07 and mechanical insulation sections — commonly 07 21 00 thermal insulation, 07 84 00 firestopping, 22 07 00 plumbing insulation, and 23 07 00 HVAC insulation — plus acoustic scopes where specified.
Yes. We routinely phase retrofit and maintenance work in operating hospitals, schools, and industrial facilities, including containment and off-hours scheduling.
Yes. Carrying both scopes with one subcontractor closes the gap where penetrations get insulated but never firestopped — a common punch-list and life-safety failure.
Supply and install. Materials are furnished per the project spec — fiberglass, elastomeric, cellular glass, mineral wool — with jacketing as specified.
