Bartelt Insulation

What Bartelt Insulation does

Bartelt Insulation is a fourth-generation, family-owned mechanical insulation contractor founded in 1944 and headquartered in Appleton, Wisconsin. The company provides full-service mechanical insulation installation for commercial, industrial, and refrigeration projects across Wisconsin, Upper Michigan, and Northern Illinois, serving end-markets including pulp and paper mills, plastics manufacturing, food processing, refrigerated dairy operations, and commercial construction. Core capabilities span piping, ductwork, tank and boiler insulation, cold-storage insulation, firestop systems, noise-control panels, marine insulation, ammonia systems, and in-plant maintenance, delivered through skilled union tradespeople with on-site measurement and project-based quote pricing.

The company's differentiated product line is custom sewn removable insulation blankets, fabricated in-house from industrial materials including aluminized cloth, fiberglass cloth, Kaowool, silicone cloth, stainless steel, Teflon, and proprietary formulations. Application-specific variants include the DEFender™ Diesel Exhaust Fluid Insulator (a proprietary modular jacket for freeze protection), heat exchanger jackets, pump housing blankets, valve covers, extruder blankets, sound absorption blankets, and steam/gas turbine blankets. Bartelt also sells retail insulation materials (duct, pipe, metal building, protective jacketing, vessel insulation) and operates an NIA-certified Insulation Energy Appraisal service that quantifies BTU losses, dollar savings, and greenhouse gas reductions for customers.

Bartelt generates revenue through three streams: project-based mechanical insulation installation services, retail insulation product sales, and custom-fabricated removable blanket products, with all pricing conducted via quote on a project-specific basis. The go-to-market is enterprise field sales targeting facility managers and project managers at industrial plants, supplemented by on-site measurement services, a Trade Ally partnership with Focus On Energy that channels utility-program leads, and content marketing through the company website and LinkedIn. The company holds NIA and MICA memberships, operates a strategic alliance with MIC Group for complementary preventative maintenance and energy audit services, and employs 11–50 staff under family leadership.

Name

Bartelt Insulation

Legal name

Bartelt Insulation

Website

https://barteltinsulation.com

Company type

Private

Founded year

1944

Operating status

Operating

Headcount range

11–50 employees

Short description

Bartelt Insulation is a fourth-generation family-owned mechanical insulation contractor serving commercial, industrial, and refrigeration clients across Wisconsin, Upper Michigan, and Northern Illinois with project-based insulation services, custom sewn removable blankets, and the proprietary DEFender™ DEF pump insulator.

Ownership category

akta.pro rank

Product category

Mechanical Insulation Contracting

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (23822), Drywall and Insulation Contractors (238310)

SIC

Sheet Metal Work (3444)

akta.pro primary industry

Mechanical Insulation & Pipefitting Support Services (IMAIABAL)

akta.pro secondary industries

Sheet Metal & Ductwork Contracting (IMAFALAH), Ductwork Installation & Replacement (Supply/Return) (HSAOAGAC), Reflective Insulation & Radiant Barriers (IMADAGAF)

Keywords

• Mechanical insulation services
• Industrial insulation contractor
• Custom insulation blankets
• Refrigeration insulation
• Pipe duct insulation

Headquarters

HQ city

Appleton

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Others

Revenue model

1. Mechanical Insulation Installation Services: Full-service mechanical insulation contracting for commercial, industrial, and refrigeration projects including piping, ductwork, tank and boiler insulation, firestop, cold-storage insulation, noise-control panels, and in-plant maintenance service.
2. Retail Insulation Products: Sale of insulation materials including duct insulation, metal building insulation, pipe insulation products, protective jacketing systems, vessel insulation, polystyrene and polyisocyanurate foams.
3. Custom Sewn Removable Insulation Blankets: Custom-fabricated removable insulation blankets for various industrial applications including DEF pumps, diesel exhaust systems, extruders, heat exchangers, pump housings, steam/gas turbines, valves, and sound absorption. Sold as products with on-site measurement and fabrication services.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Bartelt Insulation is a full-service mechanical insulation contractor that installs piping, ductwork, tank, boiler, ammonia, firestop, cold-storage, marine, and noise-control insulation for commercial and industrial facilities. It also designs, measures, and fabricates custom sewn removable insulation blankets for equipment requiring regular maintenance access, and sells retail insulation materials including duct, pipe, metal building, vessel, and jacketing products.

Product overview

Bartelt Insulation is a full-service mechanical insulation contractor (operating since 1944) offering both installation services and retail insulation products. The company provides Mechanical Insulation Services including piping, ductwork, firestop, cold-storage, noise-control panels, marine insulation, tank and boiler insulation, ammonia systems, and custom sewn removable insulation blankets. The product portfolio centers on Custom Sewn Removable Insulation Blankets, with specialized variants including the DEFender (Diesel Exhaust Fluid insulator), Heat Exchanger Insulation Jackets, Pump Insulation Blankets, Valve Insulation Blankets, Sound Absorption Blankets, Extruder Blankets, and Steam/Gas Turbine Insulation Blankets. The company also offers retail insulation products including duct insulation, pipe insulation, metal building insulation, protective jacketing systems, and vessel insulation. Supporting services include Insulation Energy Appraisal using certified appraisers with sophisticated software to analyze thermal performance and energy savings.

Differentiator

Problem solved

Functional benefit

Products and services

• Mechanical Insulation Installation Services Full-service mechanical insulation contracting for commercial, industrial, and refrigeration projects, including piping, ductwork, tanks, vessels, boilers, ammonia systems, firestop, cold-storage insulation, marine insulation, noise-control panels, HVAC, plumbing, high-temperature insulation, and in-plant maintenance service.
• Custom Sewn Removable Insulation Blankets Removable and reusable custom-fabricated insulation blankets with application-specific patterning for industrial equipment, including heat exchangers, pump housings, valves and pipes, sound absorption, extruders, and steam/gas turbines. Sold as products with on-site measurement and fabrication.
• DEFender™ Diesel Exhaust Fluid Pump Insulator Proprietary branded insulation jacket specifically engineered for Diesel Exhaust Fluid (DEF) pump equipment, with a modular design for easy inspection, maintenance, and part replacement without replacing the entire system, and no electrical connection required.
• Insulation Energy Appraisal Service Certified insulation energy appraisal using sophisticated software to evaluate thermal performance, document Btu losses, translate losses into dollar terms, and calculate greenhouse gas emissions for customer facilities.
• Retail Insulation Materials Sale of insulation materials and protective jacketing for commercial buyers, including duct insulation for round or rectangular ductwork, pipe insulation for cold or hot piping, metal building insulation and facing for new or retrofit metal buildings, protective jacketing systems (aluminum jacket and 30 mil PVC jacket for wash-down areas), vessel insulation for round or rectangular vessels, and polystyrene and polyisocyanurate foams.

Quantifiable outcome

• $26.59 savings per foot of pipe per year with 6-month payback on fiberglass pipe insulation installation
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Focus On EnergycoreGTM or Marketing PartnerBartelt works closely with Focus On Energy as a Trade Ally partner. Through this partnership, customers are eligible for monetary incentives once insulation work is complete. This relationship provides marketing credibility and helps generate qualified leads by connecting Bartelt with utility rebate programs.
• National Insulation Association (NIA)coreOthersBartelt's insulation energy appraisers are certified through the National Insulation Association (NIA). The company displays the NIA logo on their website, indicating active membership and adherence to industry standards.
• Midwest Insulation Contractors Association (MICA)minorOthersActive member of MICA, a regional industry association for insulation contractors in the Midwest, providing networking and industry credibility.
• MIC GroupcoreStrategic or Co-development PartnerMIC Group (micgroup-llc.com) is referenced alongside Bartelt Insulation's services, including Preventative Maintenance Program and Energy Audits. The companies appear to operate under shared ownership/management with complementary service offerings in insulation and energy services.

Scale indicators2 records

Recent moves6 records

Broad incumbents

• TopBuild Corp: Public national leader in insulation installation and distribution, serving residential and commercial/industrial markets. Comparable as a broad incumbent operating mechanical insulation services across geographies far larger than Bartelt's Midwest footprint.
• Installed Building Products: Public specialty contractor installing insulation and complementary building products across the U.S. Comparable as a national incumbent in mechanical and building insulation services with significantly broader geographic and customer reach than Bartelt.
• BrandSafway: Large industrial services provider offering insulation, scaffolding, and coatings to industrial customers including refineries, power plants, and manufacturing. Comparable as a broad incumbent in industrial insulation services with multi-national reach.
• APi Group: Public holding company of safety, specialty, and industrial services businesses, including insulation-related services. Comparable as a diversified industrial services incumbent with overlapping mechanical insulation capabilities.
• MasTec: Public infrastructure construction services provider with industrial and energy-sector project capabilities including mechanical systems work. Comparable as a broad incumbent serving industrial customers with overlapping thermal/mechanical insulation scope.

Direct peers

• Performance Contracting Group: Employee-owned specialty contractor providing insulation, firestopping, and scaffolding services to industrial and commercial customers nationwide. Directly comparable in service mix (mechanical insulation, firestop, industrial containment) and customer type.

Others

• Knauf Insulation: Global manufacturer of insulation products including mineral wool, fiberglass, and foam boards. Comparable as a key upstream supplier whose materials (e.g., fiberglass, mineral wool) Bartelt installs and converts into removable blankets.
• Owens Corning: Global building materials manufacturer producing fiberglass and mineral wool insulation. Comparable as a primary materials supplier to the mechanical insulation industry and a benchmark for retail insulation product economics.
• Johns Manville: Manufacturer of insulation, roofing, and engineered products, including mechanical and industrial insulation materials. Comparable as a major upstream supplier whose insulation products Bartelt installs and fabricates into custom blankets.

Regional players

• Distribution One / Service Partners: Specialty distributor and installer of insulation products operating across multiple U.S. regions. Comparable as a regional/national mechanical insulation distributor-installer serving some of the same commercial and industrial end-markets as Bartelt.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/bartelt-insulation
• Xx.com/Bartelt_Insul

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bartelt Insulation