Thermal, acoustical, and fire-protection insulation — fiberglass, mineral wool, rigid board, firestopping, and accessories. In stock and ready to ship from Newark, NJ.
Everything required to specify, complete, and protect an insulation system — sourced and shipped together.
Standard and high-performance fiberglass for thermal and acoustical applications.
→ 02Non-combustible mineral wool for thermal, acoustical, and fire-resistance applications.
→ 03Extruded and expanded polystyrene for walls, roofing, below-grade, and continuous insulation.
→ 04Fire-rated sealants, barriers, and engineered systems for penetrations and joints.
→ 05Facings, tapes, pins, washers, adhesives — everything to complete the install.
→Inventory, fabrication, logistics, and account service — the fundamentals a serious supply partner is expected to deliver.
Depth across thermal, acoustical, and fire-protection product lines — the material you need, on hand.
Cut, fabricated, and prepped to spec so material arrives ready to install.
Scheduled delivery across the Tri-State area, national freight, and same-day will-call pickup.
A dedicated point of contact for quotes, submittals, and reorders — no call centers.
Direct manufacturer relationships mean authentic product, current pricing, and reliable supply.
Don't see what you need? We source from additional manufacturers across every insulation and firestopping category.
Tell us the spec →Based in Newark, New Jersey, Commercial Insulation Supply is a stocking distributor of thermal, acoustical, and fire-protection insulation, serving commercial contractors, builders, and facility operators across the Tri-State area and beyond.
We carry insulation, rigid board, firestopping, and accessories — and we run the business on the fundamentals that matter: inventory depth, direct manufacturer relationships, dependable logistics, and account service that picks up the phone. New build, retrofit, or specialty application, we keep your project supplied and on schedule.
Tell us what you need — product, quantity, timeline. We'll respond with a quote within 24 hours.
634 Frelinghuysen Avenue
Newark, NJ 07114
Mon–Fri, 7:00 AM – 5:00 PM