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Home › Equipment › HVAC manufacturer rep jobs and sales engineering

HVAC manufacturer rep jobs and sales engineering

HVAC manufacturer representative jobs include applications support, sales engineering and project coordination. The work connects represented equipment lines with consulting engineers and contractors; it is not the same as working for the manufacturer or managing a supply-house counter.

Project directory · Equipment comparison · Boilers · Pumps · Compressors · Valves · Chillers · Refrigeration · Building systems · Manufacturers · Distributors · Manufacturer reps · Wholesale suppliers

Manufacturer, distributor, supplier or manufacturer rep?

Manufacturer

Designs and produces equipment

Product engineering, manufacturing, testing, factory support and warranty administration.

Makes the product; may sell through its own team, distributors or independent reps.

Distributor

Supplies equipment and products

Purchasing, inventory, quotations, order fulfillment, branch operations and contractor account support.

Typically purchases and resells products; availability and commercial product lines vary by branch.

Wholesale supplier

Stocks and sells products through branch counters

Counter and inside sales, will-call, credit, purchasing, inventory, delivery and contractor account support across pipe, valves, fittings, plumbing and HVAC supplies.

Buys and stocks products for contractor pickup and jobsite delivery; the branch counter is the primary touchpoint rather than project engineering support.

Manufacturer rep

Represents selected product lines

Specification support, equipment selection, sales engineering, quotations, submittals and project coordination.

Represents manufacturers within defined lines and territories; some also stock or distribute products.

Business types describe functions, not exclusive labels. A stocking rep may also be a distributor; a manufacturer may operate its own sales channel. Wholesale suppliers are distributors in function, so some companies fit both; this directory separates supply-house counters from applied-equipment distributors by how contractors buy from them. Companies appear in every category supported by their official sources.

Commercial and industrial equipment: VRF systems circulate refrigerant to multiple indoor units for zoned heating and cooling; chillers supply chilled water or another cooling fluid to airside or process systems. Boilers include commercial fire-tube and water-tube steam and hot-water units for heating and process loads. Applied HVAC also includes cooling towers and engineered air-handling systems; refrigeration includes compressors, condensing units and cold-storage equipment. Plumbing and piping include water heating, drainage, pipe, fittings and valves. Product lines vary by company.

Job responsibilities and preparation

What does a manufacturer rep sales engineer do?

Work with engineers and contractors on equipment applications, specifications and project opportunities. Coordinate selections, quotations and technical questions for the firm's represented lines. The balance between engineer-facing specification work and contractor-facing sales varies by position.

Do rep jobs include startup and service?

Some firms offer startup, stocking or technical service; others focus on sales and applications. Do not assume field-service duties from the rep label. Confirm the product lines, actual territory and responsibility for submittals, orders, startup and warranty support directly with the firm.

What to bring to your job search

  • Show examples of equipment-selection, specification-review and submittal experience, removing private project and customer information.
  • Explain whether your experience is engineer-facing, contractor-facing, applications support or project execution.
  • Check the actual represented lines, territory, travel and technical requirements in the posting; office location alone does not establish sales coverage.

Where to find openings and apply

For manufacturer, distributor, rep or supply-house jobs, open a company profile in the sourced directory and follow its verified official careers link. If no careers page is verified, consult the official website. Directory inclusion is not evidence of a vacancy, and the directory filters companies-not open jobs.

Gulfstream recruits for commercial mechanical contractors and for HVAC and plumbing equipment manufacturers, distributors and manufacturer reps. Browse our posted contractor opportunities or send us your experience for consideration. Applying with Gulfstream does not apply to any equipment company in this directory; official company applications are handled separately.

Browse Gulfstream contractor jobs · Apply with Gulfstream

What manufacturer reps do

Representatives often support specifications, equipment selection, quotations, submittals and project coordination. Some also stock products or provide startup and service. Territory and authorization can differ by manufacturer and product; a firm’s office location does not establish its full sales territory.

Roles and responsibilities

Applications and project support

Review schedules and specifications, prepare selections and submittals, and coordinate orders and technical questions.

Sales engineering and specifications

Work with consulting engineers and contractors on system requirements, equipment applications and project opportunities.

Service and business leadership

Where offered, coordinate startup and technical service; lead sales teams, principal relationships and business operations.

Career progression

Example paths, not company-specific policies or guaranteed promotions.

Applications path

  1. Project coordinator or applications support
  2. Applications engineer
  3. Applications leadership

Progress through equipment knowledge, specification review and accurate project execution. Entry requirements vary.

Sales path

  1. Inside or technical sales
  2. Sales engineer or account manager
  3. Sales leadership

Develop relationships with engineers and contractors alongside strong equipment-selection knowledge.

Business path

  1. Senior sales or operations role
  2. Team or business-unit leadership
  3. General management

Ownership or partnership is not an automatic next step; it depends on the firm and its arrangements.

Defining a hire

Identify the represented product lines, actual territory and balance of engineer-facing versus contractor-facing work. Specify applications, submittal, project-sales and startup responsibilities separately.

Company directory

Independent public reference directory, not a Gulfstream client list. Listings do not imply affiliation, endorsement or current hiring. US research is expanding in verified batches; this is not a complete census. Territories vary by product line; confirm coverage with the company.

Manufacturer reps

  • ADE Systems, Inc.

    Commercial HVAC manufacturers’ representative serving New York and New Jersey. Its official manufacturer list includes Greenheck, Titus, Price, Antec Controls, Neptronic, Trion and Zehnder Rittling.

    Manufacturer reps, HVAC · Controls

    New York and New Jersey, per ADE's official website.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Air Products Equipment Company

    Commercial HVAC equipment representation.

    Manufacturer reps, HVAC

    Chicagoland and northern Illinois

    Company and careers · Official website · Source

    Checked 2026-10-21

  • CHC Hydronics

    Hydronic equipment representation and packaged-system manufacturing.

    Manufacturers · Manufacturer reps, HVAC · Hydronics · Plumbing · Pumps

    Northern California, Nevada, Oregon, Washington and Alaska

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Danko Mechanical Sales Company

    HVAC/R and plumbing representation with distributor support and training.

    Manufacturer reps, HVAC · Plumbing · Pumps · Controls

    Arizona, California, Colorado, New Mexico, Nevada and Utah

    Company and careers · Official website · Source

    Checked 2026-10-21

  • DMG HVAC

    Commercial HVAC manufacturers’ representative. Its official manufacturer list includes AAON, LG, ClimateMaster, Dunham-Bush, Marley and WaterFurnace, among others. Available lines vary by project location; consult DMG’s regional manufacturer lists for the applicable equipment and brands.

    Manufacturer reps, HVAC · Controls

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Edwards, Platt & Deely

    Commercial plumbing manufacturer representation.

    Manufacturer reps, Plumbing

    New York City area and northern New Jersey

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Emerson Swan, Inc.

    Commercial plumbing, heating and HVAC equipment representation.

    Manufacturer reps, HVAC · Plumbing · Hydronics

    Northeastern United States; product territories vary

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Flotronix Corporation

    Commercial plumbing and HVAC representation and distribution.

    Distributors · Manufacturer reps, HVAC · Plumbing · Pumps

    Indiana, southern Illinois, Michigan, southern Ohio, Kentucky, Missouri and Kansas

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Gil-Bar Industries

    Commercial HVAC solutions firm combining engineering expertise with manufacturer partnerships and integrated services.

    Manufacturer reps, HVAC · Controls

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Haldeman

    Stocking manufacturer representation and HVAC distribution.

    Distributors · Manufacturer reps, HVAC

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Havtech

    Commercial HVAC equipment supplier and representative providing equipment, building automation, distribution, and service.

    Distributors · Manufacturer reps, HVAC · Controls · Hydronics

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Hoffman & Hoffman

    Commercial HVAC and building-automation firm bringing manufacturers together with sales engineers.

    Manufacturer reps, HVAC · Controls · Hydronics

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • HTS Engineering, Heat Transfer Solutions

    Commercial and industrial HVAC&R distribution, representation and service.

    Distributors · Manufacturer reps, HVAC · Controls

    US operations; consult the official office locator for individual markets

    Company and careers · Official website · Source

    Checked 2026-10-21

  • HVAC Distributors, Inc.

    Wholesale heating and air-conditioning equipment, including light-commercial products.

    Distributors · Manufacturer reps, HVAC

    Pennsylvania, Maryland, Delaware, New York, West Virginia and Virginia

    Company and careers · Official website · Source

    Checked 2026-10-21

  • JMP Equipment Company

    Commercial HVAC and plumbing representation, including hydronic and steam equipment.

    Manufacturer reps, HVAC · Plumbing · Hydronics · Pumps · Controls

    Sales offices across Tennessee, Alabama, North Carolina, South Carolina and Georgia; product territories vary

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Mechanical Reps, Inc.

    Commercial HVAC equipment representation and engineering support.

    Manufacturer reps, HVAC

    Central and south Texas

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Midwest Machinery Company

    Commercial HVAC manufacturers’ representative and mechanical solutions provider serving multiple Midwestern markets.

    Manufacturer reps, HVAC · Hydronics

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • MPSW

    Engineered commercial HVAC equipment representation and project support.

    Manufacturer reps, HVAC

    Arizona, New Mexico and the El Paso market

    Company and careers · Official website · Source

    Checked 2026-10-21

  • New Century Sales, Inc.

    Plumbing, heating and hydronic product representation.

    Manufacturer reps, Plumbing · Hydronics

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Pinnacle Sales

    Manufacturer representation serving wholesale plumbing and HVAC markets.

    Manufacturer reps, HVAC · Plumbing

    Ohio, Kentucky, western Pennsylvania, West Virginia and upstate New York

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Preferred Sales, Inc.

    Manufacturer representation for plumbing, heating, HVAC and hydronic products.

    Manufacturer reps, HVAC · Plumbing · Hydronics

    Midwest; consult the official line cards for exact territories

    Company and careers · Official website · Source

    Checked 2026-10-21

  • R. L. Deppmann Company

    Stocking manufacturer representative for commercial HVAC and plumbing equipment, including AERCO condensing boilers, Bryan hydronic and steam boilers, and Burnham Commercial fire-tube boilers.

    Manufacturer reps, HVAC · Plumbing · Pumps · Hydronics · Piping & valves · Boilers

    Michigan and northern Ohio; product territories vary

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Stan Weaver & Company

    Florida commercial HVAC manufacturers’ representative. Its official manufacturer list includes Greenheck, Price, FläktGroup, Condair, Phoenix Controls, Vibro-Acoustics and Air Monitor, with lines assigned by office (Tampa, Orlando, Jacksonville, Miami and West Palm Beach).

    Manufacturer reps, HVAC · Controls

    Official manufacturer list assigns lines to Tampa, Orlando, Jacksonville, Miami and West Palm Beach offices.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Texas AirSystems

    Represents commercial HVAC equipment manufacturers and provides equipment sales and project support.

    Manufacturer reps, HVAC · Controls · Hydronics

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • TLA, Inc.

    Pumps, boilers, water heating and heat-transfer equipment representation.

    Manufacturer reps, Hydronics · Pumps · Plumbing

    Virginia

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Tom Barrow Company

    Commercial HVAC manufacturers’ representative founded in 1955. Its official manufacturer list covers more than 100 brands, including Baltimore Aircoil, Price, Stulz, Ruskin, Twin City Fan, Condair and WaterFurnace, with lines assigned by branch.

    Manufacturer reps, HVAC · Applied HVAC · Controls

    Official manufacturer pages assign lines to branches in AL, FL, GA, TN.

    Company and careers · Official website · Source

    Checked 2026-10-22

  • Vertical Systems

    Commercial HVAC representation including pumps and heat-transfer equipment.

    Manufacturer reps, HVAC · Hydronics · Pumps

    Exact US territory not recorded; consult the official company site.

    Company and careers · Official website · Source

    Checked 2026-10-21

  • Weber-Huff, Inc.

    Hydronic heating and cooling equipment representation.

    Manufacturer reps, HVAC · Hydronics

    Central and southern Ohio and Kentucky

    Company and careers · Official website · Source

    Checked 2026-10-21

Careers and hiring

Gulfstream recruits for commercial mechanical contractors. These equipment-sector guides are reference material, not a claim that we represent every business listed.

Candidate application · Submit a hiring inquiry · Directory corrections or removals

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