Lammers Heating & Air Conditioning

What Lammers Heating & Air Conditioning does

Lammers Heating & Air Conditioning is a family-owned HVAC dealership headquartered at 2520 Lansing Ave., Jackson, Michigan, founded by Leo Lammers in 1964 and operated by Jim Desy from 1965 until his 2016 sale of the business to his son Todd Desy. The company sells, installs, services, and maintains heating, cooling, and indoor air quality systems for residential customers and light commercial accounts across Jackson County and roughly 20 surrounding communities in southern Michigan. As a Carrier Factory Authorized Dealer, its product portfolio spans Carrier air conditioners (14–24 SEER2), heat pumps, gas furnaces (80%–98%+ AFUE), oil furnaces, air handlers, packaged units, hybrid heat dual-fuel systems, ductless mini-splits, plus add-ons such as programmable and smart thermostats, zoning, air cleaners (MERV 10–15, HEPA), humidifiers, ventilators, UV lights, CO detectors, garage heaters (Sterling), fireplaces (Napoleon), and tanked water heaters.

Revenue is generated through six interlocking streams: equipment hardware sales (Carrier), professional installation, 24/7 emergency repair, indoor air quality products, extended warranty programs, and annual service agreements that deliver two performance tune-ups, 24-hour priority emergency service, 10% discounts on parts/labor/new units, and waived trip charges. Pricing is quote-based rather than published; financing is delivered through Wells Fargo Bank, N.A. The company's go-to-market is direct-to-consumer: phone-based scheduling (517-787-6984), website request forms, a physical showroom, free in-home estimates, and an in-house residential sales function. Distribution is handled by NATE-certified, factory-trained field technicians dispatched from the Jackson office. In-house sheet metal fabrication supports custom ductwork and faster installations. Marketing relies on the company's 60-plus-year local reputation (4.9 stars across 189 reviews), Carrier brand equity, and memberships in the Homebuilders Association of Jackson and the Jackson Chamber of Commerce.

Operationally, the company is licensed, bonded, and insured (license #71-00284), maintains 24/7 emergency service, and supports commercial applications up to 25 tons of cooling capacity. The management team is lean and family-adjacent — Todd Desy (President since 2016), Andy Miller (service manager), Josh Crawford (residential sales manager since 2005), and Tyler Desy — supported by a roster of long-tenured technicians. No external institutional investors, parent companies, or funding rounds are disclosed; the business remains privately held and family-controlled.

Name

Lammers Heating & Air Conditioning

Legal name

Lammers Heating & Air Conditioning

Website

https://lammersheating.com

Company type

Private

Founded year

1965

Operating status

Operating

Headcount range

1–10 employees

Short description

Lammers Heating & Air Conditioning is a family-owned Carrier Factory Authorized Dealer in Jackson, Michigan, selling, installing, and servicing residential and light-commercial HVAC systems across Jackson County since 1965, with annual service agreements, Wells Fargo financing, and NATE-certified field technicians.

Ownership category

akta.pro rank

Product category

Residential HVAC Contracting

NAICS

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

SIC

Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA)

Keywords

• HVAC services
• Heating and cooling
• Residential HVAC
• Commercial HVAC
• Indoor air quality

Headquarters

HQ city

Jackson

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. HVAC Equipment Sales: Sale of heating and cooling equipment including air conditioners, furnaces, heat pumps, boilers, and accessories. Equipment sold primarily as Carrier brand products with full factory warranties.
2. Installation Services: Professional installation of HVAC systems including new installations, upgrades, and replacements. Includes free in-home consultation, proper equipment sizing, and full factory warranties on labor.
3. Repair and Maintenance Services: 24/7 emergency repair services and scheduled maintenance. Service includes diagnostics, parts replacement, and system tune-ups. Technician visits charged with potential trip/service call fees.
4. Service Agreements: Annual maintenance agreements providing two performance tune-ups per year, priority emergency service, discounts on parts and labor, and labor warranty. These create recurring revenue from existing customer base.
5. Indoor Air Quality Products: Sale and installation of air cleaners, humidifiers, UV lights, ventilators, zoning products, thermostats, and carbon monoxide detectors as add-on products to core HVAC systems.
6. Extended Warranties: Extended warranty programs for new and existing equipment, providing coverage beyond factory warranties for parts and labor.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Lammers Heating & Air Conditioning is a Carrier Factory Authorized Dealer that sells and installs residential and light commercial HVAC equipment (air conditioners, heat pumps, gas and oil furnaces, packaged units, hybrid heat systems, ductless mini-splits, water heaters, fireplaces, garage heaters) and provides related installation, 24/7 repair, scheduled maintenance, indoor air quality, and commercial HVAC services (up to 25 tons) for Jackson, Michigan and 20+ surrounding communities. The company also fabricates sheet metal ductwork in-house and offers annual service agreements and extended warranties backed by Carrier factory warranties.

Product overview

Lammers Heating & Air Conditioning is a Carrier Factory Authorized Dealer offering a comprehensive portfolio of residential and commercial HVAC products and services. The core product portfolio includes Carrier air conditioners (14-24 SEER2), heat pumps, gas furnaces (80%-98%+ AFUE), oil furnaces, air handlers, packaged units, hybrid heat dual-fuel systems, and duct-free mini-split systems. These are complemented by add-on comfort products including programmable/smart thermostats (Infinity System Control, ecobee), zoning products, air cleaners (MERV 10-15, HEPA), humidifiers, ventilators, UV lights, carbon monoxide detectors, garage heaters (Sterling), fireplaces (Napoleon), and tanked water heaters. The company also provides installation, repair, maintenance, indoor air quality, commercial HVAC (up to 25 tons), sheet metal fabrication, service agreements, and extended warranties. The product ecosystem centers on Carrier equipment with smart home integration via Amazon Alexa, Apple Siri, and ecobee platforms.

Differentiator

Problem solved

Functional benefit

Products and services

• Carrier Air Conditioners

Quantifiable outcome

• Up to 50% operating cost savings over 10-year-old furnaces with high-efficiency units (98%+ AFUE)
• +3 more outcomes

Named customers5 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature3 records

Partnerships

Three partnerships are on record, tiered core and supporting.

• CarriercoreTechnology or IntegrationCarrier Factory Authorized Dealer providing access to full line of Carrier HVAC products including air conditioners, heat pumps, furnaces, boilers, and indoor air quality products. Company meets Carrier's rigid criteria for quality, technical expertise, business practices, and customer service. Carrier provides 100% satisfaction guarantee for equipment purchased from Factory Authorized Dealers.
• Napoleon FireplacessupportingTechnology or IntegrationPartnership for fireplace products including gas fireplaces, woodburning fireplaces, electric fireplaces, fireplace inserts, mantels, outdoor fireplaces/pits, and outdoor heaters to enhance warmth and beauty of customer homes.
• Sterling HeaterssupportingTechnology or IntegrationPartnership for garage heater products including electric and gas garage heating systems for detached garages, workshops, and vehicle storage areas.

Scale indicators5 records

Recent moves6 records

Expansion highlights7 records

Broad incumbents

• Carrier: Lammers' core brand partner and the largest HVAC equipment manufacturer in North America. While not a service competitor, Carrier's brand ecosystem, dealer program economics, warranty administration, and smart-home (Infinity/ecobee) integration shape every revenue line at Lammers.
• ARS / Rescue Rooter: Large national residential services platform offering HVAC installation, repair, plumbing, and drain cleaning. Operates at vastly greater scale than Lammers but competes for the same homeowner wallet and the same Carrier/Trane/Lennox brand-aligned installs.
• Trane: Major HVAC equipment manufacturer with a competing residential dealer network that recruits independent Michigan contractors as Trane Comfort Specialists. It is the most direct substitute for Lammers' Carrier relationship and shapes competitive dealer economics locally.
• Roto-Rooter: National in-home services brand historically known for plumbing but actively expanding HVAC repair and installation offerings. Represents the convergence of plumbing and HVAC service contracts that increasingly compete with Lammers' full-service offering.
• Lennox International: Competing HVAC manufacturer with the Dave Lennox Signature Collection and Dealer Council program targeting the same premium residential replacement segment that Lammers addresses via Carrier. Dealer network overlap in Michigan creates direct bidding competition on high-efficiency installations.
• Coolray Heating, Cooling, Plumbing & Electrical: Regional HVAC services company serving the Southeastern U.S. with residential install/replace, service agreements, and indoor air quality offerings. Closely analogous product menu and agreement-based model to Lammers, scaled across a multi-state footprint.

Direct peers

• One Hour Heating & Air Conditioning: National HVAC service franchise operating under Neighborly that sells, installs, and services heating/cooling systems for residential and light-commercial customers. Directly comparable business model — fixed-price residential installs, 24/7 service, and recurring maintenance agreements — but with national scale and marketing budget Lammers lacks.
• Aire Serv: Neighborly-owned HVAC franchise providing residential heating/cooling installation, repair, and maintenance with a same-day service promise. Closest direct analog to Lammers' technician-driven, agreement-backed service model, differing primarily through franchised versus family-independent ownership.

Others

• ServiceMaster Restore (American Home Shield): ServiceMaster's home warranty and HVAC service arm sells annual coverage that competes head-on with Lammers' service agreement program. While ServiceMaster does not perform its own HVAC installs, its warranty contracts influence whether homeowners pay out of pocket versus through warranty coverage.

Emerging players

• Mr. Rooter Plumbing & Heating: Neighborly franchise system providing plumbing and basic HVAC services to homeowners. Less directly comparable than One Hour or Aire Serv on HVAC depth, but competes for the same residential maintenance contract and emergency-service wallet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/lammersheating
• LinkedInlinkedin.com/company/lammersheating

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 Lammers Heating & Air Conditioning