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Insulation Suppliers in Maryland

12 local suppliers in Maryland, plus 13 national and regional distributors serving the state

Maryland construction cost snapshotBuild cost index +1% vs. U.S. averageConstruction wage $38.40/hr (#16 of 51)

Regional labor cost adjusts what you pay to install insulation even when material is priced nationally. Source: BLS QCEW construction wages (NAICS 23).

Local Insulation Suppliers in Maryland

In-state locations with published contact details, ranked by customer rating.

DeVere Insulation Home Performance

location_onGlen Burnie, MD

star4.9 (859 reviews)

call(443) 770-1111 languageWebsite

Koala Insulation

location_onBaltimore, MD

star5 (308 reviews)

call(667) 241-9099 languageWebsite

Winner Insulation

location_onWindsor Mill, MD

star5 (113 reviews)

call(443) 363-1537 languageWebsite

DeVere Insulation

location_onBaltimore, MD

star4.1 (81 reviews)

call(410) 360-6900 languageWebsite

Cameron Home Insulation

location_onElkridge, MD

star4.9 (31 reviews)

call(443) 203-8261 languageWebsite

Capitol Building Supply

location_onBeltsville, MD

star4.3 (44 reviews)

call(301) 937-6366 languageWebsite

Carroll Insulation

location_onEldersburg, MD

star4.6 (25 reviews)

call(410) 795-0600 languageWebsite

IDI: Insulation Distributors Inc.

location_onHanover, MD

star4.4 (27 reviews)

call(410) 709-1192 languageWebsite

L&W Supply - Baltimore West, MD

location_onHalethorpe, MD

star4 (36 reviews)

call(410) 536-4440 languageWebsite

L&W Supply - Waldorf, MD

location_onWaldorf, MD

star4.9 (16 reviews)

call(301) 290-1750 languageWebsite

McCormick Insulation Supply Inc

location_onOwings Mills, MD

star4.4 (21 reviews)

call(410) 581-0040 languageWebsite

RIS Insulation Supply

location_onBaltimore, MD

star4.4 (17 reviews)

call(410) 488-4939 languageWebsite

National & Regional Distributors Serving Maryland

13 suppliers found

BASF Performance Materials

Florham Park, NJ

National

Manufacturer$3B+Est. 1865

Chemical giant producing spray foam insulation and building performance materials

languageWebsite infoDetails

Benjamin Obdyke

Horsham, PA

National

Manufacturer$200M+Est. 1868

Manufacturer of housewrap, rainscreen, and roof ventilation products

languageWebsite infoDetails

Carlisle Spray Foam

Carlisle, PA

National

Manufacturer$500M+Est. 2018

Carlisle Companies subsidiary producing spray foam insulation systems

languageWebsite infoDetails

CertainTeed

Malvern, PA

National

Manufacturer$5B+Est. 1904

Saint-Gobain subsidiary producing roofing, siding, insulation, and gypsum products

languageWebsite infoDetails

Demilec

Arlington, TX

National

Manufacturer$500M+Est. 1983

Huntsman brand producing spray foam insulation for residential and commercial

languageWebsite infoDetails

Dow Building Solutions

Midland, MI

National

Manufacturer$5B+Est. 1897

Dow division producing Styrofoam brand XPS insulation and building envelope solutions

languageWebsite infoDetails

DuPont Tyvek

Wilmington, DE

National

Manufacturer$1B+Est. 1967

DuPont brand producing weather-resistant housewrap and building envelope barriers

languageWebsite infoDetails

Icynene

Houston, TX

National

Manufacturer$500M+Est. 1986

Huntsman subsidiary producing spray polyurethane foam insulation systems

languageWebsite infoDetails

Johns Manville

Denver, CO

National

Manufacturer$3B+Est. 1858

Berkshire Hathaway subsidiary producing fiberglass and polyiso insulation

languageWebsite infoDetails

Kingspan

Deerfield Beach, FL

National

Manufacturer$7B+Est. 1965

Irish-based global leader in insulated panels and high-performance insulation

languageWebsite infoDetails

Knauf Insulation

Shelbyville, IN

National

Manufacturer$2B+Est. 1978

Global insulation manufacturer with fiberglass and mineral wool product lines

languageWebsite infoDetails

Owens Corning

Toledo, OH

National

Manufacturer$10B+Est. 1938

Global leader in roofing shingles, fiberglass insulation, and composite materials

languageWebsite infoDetails

Rockwool

Ranson, WV

National

Manufacturer$3B+Est. 1937

World leader in stone wool insulation for thermal, fire, and acoustic applications

languageWebsite infoDetails

Buying Insulation in Maryland

Buildermuse tracks 13 insulation suppliers serving Maryland. Every supplier here is a national chain with distribution reaching Maryland, so availability is rarely the constraint — pricing and lead time are. The listed suppliers are headquartered in Arlington, Carlisle, and Deerfield Beach.

Of the suppliers that report a business type, the list includes 13 manufacturers. Buying direct from a manufacturer can cut unit cost on large or repeat orders, while distributors and wholesalers tend to carry mixed inventory and offer shorter lead times that suit smaller or last-minute jobs.