What Postler & Jaeckle Corp. does

Postler & Jaeckle Corp. is a family-owned mechanical contracting firm founded in 1964 in Rochester, NY, and now operated by the third generation of the founding Postler family. The company delivers HVAC, plumbing, process piping, custom sheet metal fabrication, design-build, building automation, and 24/7 emergency service to healthcare, industrial/manufacturing, commercial, institutional, and process/chemical clients across New York, Pennsylvania, and New Jersey through nine branch offices and a dedicated fabrication subsidiary, Northern Fabricators, in Victor, NY.

The business operates across three primary service lines: project-based Mechanical Construction (HVAC systems design and installation, plumbing and piping, process piping, and custom sheet metal), recurring Service & Maintenance (customized maintenance plans, preventative maintenance, 24/7 emergency support with sub-4-hour response, performance optimization), and Design Build (integrated design-and-install under a single point of accountability). Technical capabilities are anchored in Building Information Modeling (BIM) for constructability analysis, factory-trained certifications across at least seven major BAS and HVAC OEM platforms (Carrier, Trane, York, Johnson Controls, Siemens, Tridium, Andover Controls, CPC), a state-of-the-art in-house sheet metal fabrication facility, remote monitoring and diagnostics, and Procore-based digital safety and compliance tracking.

Revenue is generated through a mix of one-time project fees for design, installation, and fabrication work, plus recurring subscription-style service contracts and design-build project revenue. Go-to-market is exclusively direct enterprise field sales from each branch, targeting large institutional and industrial accounts (e.g., University of Rochester, Rochester General Hospital, Corning Inc., Rivers Casino, Cornell). The company is led by CEO Erich K. Postler Jr. (since 2018) and CFO Elisabeth Postler Dineen, with reported cumulative business growth of 65% since 2018 and 46% service-sales growth since 2016.

Name

Postler & Jaeckle Corp.

Legal name

Postler & Jaeckle Corp.

Website

https://postlerandjaeckle.com

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

251–500 employees

Short description

Postler & Jaeckle is a family-owned mechanical contractor (founded 1964, Rochester, NY) delivering HVAC, plumbing, process piping, sheet metal fabrication, design-build, building automation, and 24/7 service to healthcare, industrial, commercial, and institutional clients across New York, Pennsylvania, and New Jersey via nine branch offices.

Ownership category

akta.pro rank

Product category

Mechanical Contracting Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industry

Emergency HVAC Repair (24/7) (HSAOAHAC)

Keywords

• Mechanical contracting services
• HVAC installation and service
• Industrial plumbing and piping
• Commercial sheet metal fabrication
• Building automation systems

Headquarters

HQ city

Rochester

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Mechanical Construction Services: Project-based mechanical contracting services including HVAC system design, installation, and maintenance; plumbing and piping services; process piping for specialized industries; and custom sheet metal fabrication. Revenue is generated through one-time project fees for design, installation, and fabrication work.
2. Maintenance and Service Contracts: Recurring revenue from customized maintenance plans, preventative maintenance programs, and 24/7 emergency support services. Includes performance optimization and repair/replacement services.
3. Design-Build Services: Integrated design-build approach combining mechanical system design with installation under single point of accountability. Revenue generated through comprehensive project contracts.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Postler & Jaeckle is a mechanical contracting firm providing HVAC system design and installation, plumbing and process piping, custom sheet metal fabrication through its Northern Fabricators subsidiary, design-build services, and ongoing maintenance with 24/7 emergency response. The company serves healthcare, manufacturing, commercial, and institutional clients across New York, Pennsylvania, and New Jersey. Offerings span one-time construction projects as well as recurring maintenance and service contracts.

Product overview

Postler & Jaeckle Corp. is a family-owned mechanical contracting firm offering a unified portfolio of construction and service solutions. The core offerings include Mechanical Construction (HVAC, plumbing, process piping, sheet metal fabrication), Service & Maintenance, and Design Build services. These are supported by specialized sub-products including Controls and Automation, Industrial Refrigeration, Maintenance Services, and Emergency Services. Northern Fabricators serves as the company's subsidiary for advanced sheet metal fabrication. The portfolio is organized as integrated service lines where mechanical construction provides new installations while Service & Maintenance and Emergency Services handle ongoing support, with Design Build serving as a delivery method that encompasses both design and installation phases.

Differentiator

Problem solved

Functional benefit

Brands

• Northern Fabricators: State-of-the-art sheet metal fabrication facility located in Victor, NY, specializing in custom sheet metal products for HVAC systems, ductwork, and specialized industrial applications.

Products and services

• Mechanical Construction Comprehensive mechanical contracting services including HVAC systems, plumbing and piping, process piping, and custom sheet metal fabrication for industrial, commercial, healthcare, and institutional sectors. Covers full project lifecycle from design and installation to ongoing maintenance.
• Service & Maintenance

Quantifiable outcome

• 35% of HVAC projects completed ahead of schedule
• +3 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

Feature4 records

Partnerships

Six partnerships are on record, tiered minor.

• International Institute of Ammonia Refrigeration (IIAR)minorStrategic or Co-development PartnerIndustry association membership demonstrating expertise in industrial ammonia refrigeration systems.
• Refrigerating Engineers and Technicians Association (RETA)minorStrategic or Co-development PartnerProfessional association membership for refrigeration engineers and technicians.
• United Association (UA)minorStrategic or Co-development PartnerLabor union affiliation providing skilled workforce and industry standards alignment.
• SMACNA RochesterminorStrategic or Co-development PartnerSheet Metal and Air Conditioning Contractors National Association local chapter membership.
• Mechanical Contractors Association of America (MCAA)minorStrategic or Co-development PartnerNational trade association membership with CEO Erich Postler serving on the board.
• MCAA National Women in the Mechanical Industry (WiMI) CommitteeminorStrategic or Co-development PartnerCFO Elisabeth Postler Dineen serves as Vice Chair of this national committee.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• APi Group: APi Group (NYSE:APG) is a global leader in safety, security, and specialty services, including building and construction services (mechanical, HVAC, insulation, fire/life safety). It is comparable because of overlapping HVAC/mechanical contracting capabilities targeting institutional and industrial customers, while operating at a much larger scale.
• IES Holdings: IES Holdings (NASDAQ:IESC) is a national provider of electrical and mechanical infrastructure, including HVAC, plumbing, and facility services for industrial, commercial, and data-center customers. While more electrical-centric, it competes with P&J on mechanical contracting, building automation, and service work in overlapping customer verticals.
• Comfort Systems USA: Comfort Systems USA (NYSE:FIX) is one of the largest national mechanical services contractors, providing HVAC, plumbing, and building automation design, installation, and service to commercial and industrial customers. It overlaps directly with P&J's HVAC/plumbing/service offerings but operates across the country with substantially greater scale and an installed-base service book.
• EMCOR Group: EMCOR Group (NYSE:EME) is a Fortune 500 mechanical and electrical construction, facilities, and energy-services provider serving industrial, commercial, utility, and institutional customers. It competes with P&J on healthcare, manufacturing, and institutional mechanical construction but at far greater scale and with national reach.

Direct peers

• Limbach Holdings: Limbach Holdings (NYSE:LMB) is a publicly traded specialty contractor delivering HVAC, plumbing, and building automation design-build and service across multiple U.S. regions. It is the closest publicly traded analog to P&J because it pairs new-construction mechanical contracting with a growing recurring-service business and operates Owner-Directed Projects alongside general contractor work.
• TDIndustries: TDIndustries is a 100% employee-owned mechanical services firm delivering HVAC, plumbing, and building performance solutions across the U.S. South and Southwest. It is comparable as a mid-large, multi-service mechanical contractor pairing construction with service and is recognized for craft culture, mirroring P&J's family/employee-centered ownership and culture.
• Murphy Company: Murphy Company is a large mechanical construction and service firm based in Denver serving commercial, industrial, healthcare, and higher-education markets across the U.S. Like P&J, it offers design-build HVAC, plumbing, process piping, and a strong service/maintenance book with 24/7 emergency support.
• The Waldinger Corporation: Waldinger Corporation is a Midwest-based mechanical and electrical contractor offering HVAC, plumbing, process piping, fabrication, and 24/7 service to commercial and industrial customers. It is a relevant comparable because its service-line mix and design-build, fabrication, and service operations closely mirror P&J's full mechanical platform.
• R.H. White Companies: R.H. White Companies is a multi-generation mechanical, electrical, and utility contractor headquartered in Massachusetts with a heavy industrial, institutional, and commercial focus in the Northeast. It overlaps with P&J's mechanical construction, HVAC, plumbing, and service model, and operates in overlapping Northeast geographies.

Regional players

• John W. Danforth Company: John W. Danforth Company is a regional mechanical and energy services contractor headquartered in upstate New York, providing HVAC, plumbing, and energy solutions to healthcare, education, and commercial customers in the same Northeast geography as P&J. It competes for the same Upstate NY institutional, healthcare, and higher-education mechanical work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights8 records

Customer concentration

• LinkedInlinkedin.com/company/postler-&-jaeckle

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 record

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 Postler & Jaeckle Corp.