Hetzel-Sanfilippo, Inc.

What Hetzel-Sanfilippo, Inc. does

Hetzel-Sanfilippo, Inc. (HSI) is a Pewaukee, Wisconsin-based commercial drywall and finish trade subcontractor founded in 1993 by Karen Hetzel as Hetzel Drywall, Inc., and renamed in 1995 when finish carpentry was added and Peter Sanfilippo joined as principal owner. The firm delivers four core service lines — gypsum board assemblies, cold form metal framing (including panelized wall systems), exterior insulation and finish systems (EIFS), and finished carpentry — across interior and exterior wall and ceiling scopes for general contractors, property owners, and government-funded projects in southeastern Wisconsin. Notable executed work includes the 292,000 sq ft LEED Gold Manpower World Headquarters and the 260,000 sq ft LEED Silver Kerry Incorporated office, alongside healthcare (Medical College of Wisconsin), retail (Save A Lot, AB Data), financial services (US Bank), automotive (Somers Dealership), and multifamily (Olga Village) projects.

The company's revenue model is project-based, one-time subcontracting revenue priced through competitive bidding, value-engineering proposals, and budgetary pre-construction engagements. Go-to-market is sales-led and relationship-driven: HSI works directly with general contractors on commercial builds and leverages its DBE (Wisconsin Unified Certification Program) and WOBE (Wisconsin Department of Commerce) certifications to access HUD/WHEDA-funded public work. Marketing is limited to a project portfolio website and word-of-mouth referrals within the Milwaukee construction market. The firm operates with a signatory union model across the Carpenters, Painters, and Plasterers trades, supporting a workforce that has scaled from four field employees in 2004 to 80+ today, managed by an in-house team of project managers, estimators, and a head scheduler under the leadership of President Karen Hetzel and Executive Project Manager Jeff Hetzel.

Name

Hetzel-Sanfilippo, Inc.

Legal name

Hetzel-Sanfilippo, Inc.

Website

https://hsidrywall.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

Hetzel-Sanfilippo, Inc. is a Pewaukee, Wisconsin-based commercial drywall, cold form metal framing, EIFS, and finish carpentry subcontractor serving general contractors, property owners, and government-funded projects in the Milwaukee area since 1993.

Ownership category

akta.pro rank

Product category

Commercial Drywall Contracting

NAICS

Specialty Trade Contractors (238), Structural Steel and Precast Concrete Contractors (23812), Painting and Wall Covering Contractors (238320)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

Prefabricated Gypsum/Plaster Architectural Elements (Cornices, Ceiling Medallions, Moldings) (IMADAEAL)

akta.pro secondary industries

Metal Cladding, Soffits & Trim (Non-Panel Components) (IMADACAM), Modular/Offsite General Contracting & Installation (IMAFAAAK)

Keywords

• Commercial drywall services
• Metal framing installation
• Finish carpentry services
• Exterior insulation systems
• Gypsum board assemblies

Headquarters

HQ city

Pewaukee, WI

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Commercial Drywall Services: Project-based revenue from commercial drywall installation, gypsum board assemblies, metal framing, and finish carpentry for general contractors and property owners
2. Construction Project Services: One-time project fees for complete interior and exterior wall/ceiling assemblies including framing, drywall, insulation, and custom finish work

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Hetzel-Sanfilippo, Inc. is a commercial construction subcontractor that self-performs interior and exterior building-envelope scopes, including gypsum board (drywall) assemblies, cold-formed metal framing, finished carpentry, and EIFS. The company serves general contractors and commercial property owners primarily in the Milwaukee and Southeast Wisconsin markets on projects such as offices, healthcare facilities, retail, hospitality, and institutional buildings.

Product overview

Hetzel Sanfilippo Inc. is a Milwaukee area commercial drywall contractor offering four core construction services: Gypsum Board Assemblies (interior wall, soffit, and ceiling installation), Cold Form Metal Framing (load bearing and non-load bearing with panelized capabilities), Finished Carpentry (doors, frames, hardware, cabinetry, wood finishes), and Exterior Insulation and Finish Systems (EIFS using Dryvit, Senergy, Parex, and STO systems). The company is a family-owned business operating since 1993 and serves commercial construction projects in Wisconsin.

Differentiator

Problem solved

Functional benefit

Products and services

• Gypsum Board Assemblies
• Cold Form Metal Framing
• Finished Carpentry
• Exterior Insulation and Finish Systems (EIFS)

Quantifiable outcome

• Completing projects early or on time while delivering quality workmanship
• +2 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Carpenters UnioncoreOthersSignatory union relationship providing trained labor force for carpentry work. Union affiliation since company inception.
• Painters UnioncoreOthersSignatory union relationship for painting services on construction projects.
• Plasterers UnioncoreOthersSignatory union relationship for plastering and finishing work.
• Wisconsin Unified Certification ProgramcoreOthersCertifying body for DBE (Disadvantaged Business Enterprise) certification, enabling HSI to participate in government-funded construction projects.
• Wisconsin Department of CommercecoreOthersCertifying body for WOBE (Women Owned Business Enterprise) certification.
• Associated Subcontractors AssociationminorOthersIndustry association membership for Karen Hetzel, providing networking and industry representation.
• American General Contractors AssociationminorOthersIndustry association membership for Karen Hetzel, providing industry representation and advocacy.
• National Association of Women in ConstructionminorOthersProfessional association membership for Karen Hetzel, supporting women in construction industry.

Scale indicators6 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Precision Walls: Commercial drywall, framing, and acoustical ceilings contractor serving the Southeast and Mid-Atlantic. Closely comparable business model and service offering to HSI, with similar customer base of general contractors in commercial construction.
• Valley Interior Systems: Midwest-based specialty interior contractor offering drywall, framing, acoustical ceilings, and prefabricated wall systems. Strongly comparable to HSI given geographic proximity (Iowa-based) and similar panelized wall systems capability.
• Brady Company: Wisconsin-based commercial interior systems contractor providing drywall, framing, and finish services. Direct regional competitor to HSI, sharing the same Wisconsin market and general contractor customer base.
• AP Drywall & Insulation: Upper Midwest commercial drywall and insulation contractor with offices across the region. Comparable service offering to HSI with overlap in cold-formed metal framing, drywall, and insulation in commercial projects.
• T.W. Frierson Contractor: Commercial interior contractor specializing in cold-formed metal framing, drywall, and specialty ceiling systems. Comparable mid-sized specialty contractor serving commercial general contractors on similar project types.
• G&F Drywall: Wisconsin-based commercial drywall contractor serving the Milwaukee and broader Midwest markets. Direct regional competitor with overlapping service lines (drywall, framing, finishing) and similar general contractor customer base.

Broad incumbents

• KHS&S Contractors: National commercial drywall, framing, and specialty finishes contractor serving large-scale commercial, hospitality, and institutional projects. Highly comparable service portfolio to HSI, with substantially greater scale and geographic reach.
• Performance Contracting Group: National specialty contractor headquartered in Lenexa, KS, offering interior framing, drywall, insulation, and exterior finishing services for commercial and industrial projects. Directly comparable to HSI's service mix but at significantly larger scale and geographic footprint.

Others

• Associated Subcontractors Association (industry association): Industry association representing specialty trade contractors — Karen Hetzel is a member. Includes exposure to peer benchmarking, networking, and advocacy for commercial subcontractors like HSI, though not a direct competitor.

Emerging players

• Heartland Companies: Midwest-focused commercial construction services firm with interior systems capabilities. Comparable emerging regional player in the drywall and framing trade space where HSI also operates.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/hetzel-sanfilippo-inc.

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Hetzel-Sanfilippo, Inc.