Deljo Heating & Cooling

What Deljo Heating & Cooling does

Deljo Heating & Cooling is a privately held, family-owned HVAC and plumbing service company headquartered in Chicago, Illinois, founded in 1922 and currently led by President Bill Clement. The company delivers heating, cooling, plumbing, and indoor air quality services to residential homeowners and small businesses across the Chicago metropolitan area, operating from three offices (Chicago HQ at 4300 W. Bryn Mawr Avenue, Park Ridge, and Naperville) and serving 45+ Chicago neighborhoods plus 25+ suburban communities including Arlington Heights, Evanston, Oak Park, and Park Ridge. Service delivery relies on NATE-certified field technicians who staff 24/7 emergency dispatch and follow a standardized 100+ step process for AC installations, supported by 1,000+ hours of in-house training lab time.

The company's revenue is generated across four streams: professional HVAC services (furnace, boiler, heat pump, AC repair and installation), professional plumbing services (drain cleaning, water heaters, sewer lines, flood control, repiping, sump pumps, frozen-pipe repair), hardware sales of third-party equipment (Carrier HVAC products, Ecobee smart thermostats, REME HALO air purifiers, humidifiers, water heaters), and recurring subscription revenue from the Gold Star Maintenance Program (3,800+ active agreements starting at $24/month). Go-to-market is direct-to-consumer, primarily through phone (773-829-4295), online quote requests, Google Business Profile SEO, social/video content, email, and Metra commuter-rail advertising. Strategic vendor relationships include Mitsubishi Diamond Dealer status, Carrier Authorized Dealer status, Ecobee and REME HALO product partnerships, and NATE technician certification, while credibility is reinforced by BBB accreditation, 3,000+ five-star reviews, and 2,100+ five-star reviews specific to plumbing services.

Name

Deljo Heating & Cooling

Legal name

Deljo Heating and Cooling

Website

https://deljoheating.com

Company type

Private

Founded year

1922

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

HVAC and Plumbing Services

NAICS

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

akta.pro primary industry

Heat Pump Repair & Maintenance (HSAOAHAD)

akta.pro secondary industries

Furnace Repair & Maintenance (HSAOAHAE), HVAC System Replacement & Change-Outs (HSAOAGAB)

Keywords

• HVAC services
• Plumbing services
• Furnace repair
• Air conditioning installation
• Boiler maintenance

Headquarters

HQ city

Chicago

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. HVAC Services: Revenue from heating and cooling services including repairs, maintenance, tune-ups, installations, and emergency services for furnaces, boilers, heat pumps, and air conditioning systems.
2. Plumbing Services: Revenue from plumbing services including drain cleaning, water heater services (tank, tankless, gas, electric), pipe repair, sewer line services, sump pumps, flood control, and fixture installation.
3. Product Sales: Revenue from selling HVAC equipment and products including Carrier HVAC products, Ecobee smart thermostats, humidifiers, water heaters, REME HALO air purifiers, and filter supplies.
4. Maintenance Agreements: Recurring revenue from Gold Star Maintenance Program subscriptions offering monthly payment plans for ongoing HVAC and plumbing system maintenance.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Deljo Heating & Cooling installs, repairs, and maintains residential HVAC and plumbing systems across the Chicago metropolitan area. Service lines include furnaces, boilers, heat pumps, central air conditioning, ductless mini-splits, water heaters, drain cleaning, pipe repair, sewer lines, flood control, and indoor air quality products, supported by 24/7 emergency response and the recurring Gold Star Maintenance Program.

Product overview

Deljo Heating & Cooling offers a comprehensive portfolio of HVAC and plumbing services delivered as a unified service offering rather than a software platform. The core portfolio spans heating services (furnace repair/maintenance/installation, boiler services, heat pumps), cooling services (AC repair/maintenance/installation, ductless mini-split systems), and plumbing services (water heaters, drain cleaning, pipe repair, sewer lines, water filtration). Add-on modules include zone control systems for customized temperature management, indoor air quality products (humidifiers, dehumidifiers, air purifiers), and the Goldstar Maintenance Program for preventative care. The company also sells and installs third-party product brands including Carrier HVAC equipment, Ecobee smart thermostats, and REME HALO air purifiers. Emergency services are available 24/7 for both HVAC and plumbing emergencies.

Differentiator

Problem solved

Functional benefit

Brands

• Gold Star Maintenance Program: The company's HVAC preventative maintenance plan offering priority service, reduced-fee service calls, special Saturday appointments, and system maintenance starting at $24 per month.
• Mitsubishi Diamond Dealer

Products and services

• Furnace Services Repair, maintenance, and installation services for residential furnaces of all major brands and models, including single-stage, two-stage, and modulating units, delivered by NATE-certified technicians across the Chicago area.
• Boiler Services Complete boiler service including repairs, routine maintenance, and new installations for firetube, watertube, and combi boilers serving Chicago-area homes.
• Heat Pump Services Heat pump installation, repair, maintenance, and replacement services providing year-round heating and cooling for residential customers.
• Air Conditioning Services AC repair, maintenance, tune-up, and installation services for central air conditioning systems in Chicago-area residences.
• Ductless Mini-Split Systems Ductless air conditioning and heating systems providing zoned temperature control for homes without existing ductwork, installed by Mitsubishi Diamond Dealer-certified technicians.
• Plumbing Services Comprehensive residential plumbing services including emergency repairs, drain cleaning, pipe repair, repiping, sewer line services, and fixture installation for Chicago-area homes.
• Water Heater Services Water heater repair, installation, and replacement for tank, tankless, electric, and gas water heaters serving residential customers.
• Drain Cleaning Professional drain cleaning using video camera inspection and high-pressure water jets to clear clogs and prevent future blockages in residential plumbing.
• Flood Control Systems Basement flooding prevention and control solutions including sump pump services and flood control system installation for Chicago-area residences prone to water intrusion.
• Frozen Pipe Repair Emergency repair services for frozen and burst pipes including pipe thawing and water damage restoration, addressing a common Chicago winter issue.
• Emergency HVAC Services Round-the-clock emergency heating and cooling repair services available 24/7 for urgent HVAC and plumbing breakdowns in the Chicago area.
• Gold Star Maintenance Program Recurring whole-home HVAC and plumbing maintenance subscription offering priority scheduling, discounted service calls, seasonal maintenance visits, and special Saturday appointments at no extra charge, starting at $24 per month.
• Carrier HVAC Products Carrier brand heating and cooling equipment including furnaces, air conditioners, and heat pumps sold and installed by Deljo as a Carrier Authorized Dealer.
• Ecobee Smart Thermostat Ecobee smart thermostat products sold and installed for enhanced temperature control and energy efficiency in residential HVAC systems.
• REME HALO Whole Home In-Duct Purifier Whole-home air purification systems installed in ductwork to reduce allergens, bacteria, and odors throughout the residence.

Quantifiable outcome

• High-efficiency heating systems are 40% more efficient than older models, providing energy savings and lower utility bills.
• +1 more outcomes

Named customers4 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

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• Mitsubishi ElectriccoreTechnology or IntegrationMitsubishi Diamond Dealer status, guaranteeing superior skill set, dedicated customer service, and sophisticated solutions. Technicians participate in extensive training at Mitsubishi Electric-approved training centers.
• CarriercoreChannel Partner/ Reseller/ DistributorCarrier Authorized Dealer, enabling sales and installation of Carrier HVAC products including furnaces, air conditioners, and heat pumps.
• NATE (North American Technician Excellence)coreTechnology or IntegrationTechnician certification program ensuring technicians are trained and certified in HVAC installation and service.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• American Weathermakers: Chicago-based residential HVAC, plumbing, and sewer contractor with a similar service-area focus, multi-trade offering, and direct-to-consumer go-to-market. Direct competitor for homeowner install and emergency work across the Chicago metro.
• ABC Plumbing, Sewer, Heating, Cooling & Electric: Long-established Chicago-area multi-trade home services company offering HVAC, plumbing, sewer, and electrical. Highly comparable to Deljo in service breadth, geographic focus, and customer segment.
• Four Seasons Heating & Cooling: Chicago-area residential HVAC contractor providing heating, cooling, and indoor air quality services. Direct competitor in the same metropolitan market with overlapping service offerings.
• All Temp Heating & Air Conditioning: Chicago-based residential HVAC contractor offering heating, cooling, installation, and repair. Comparable in size, target customer, and service scope to Deljo's core HVAC business.
• Blue Frost Heating & Cooling: Chicago-suburban residential HVAC company serving similar customer profiles with heating, cooling, and air quality services. Comparable regional competitor for homeowner install and maintenance work.

Regional players

• Service Champions Heating & Air Conditioning: Residential HVAC service and replacement company operating in select U.S. metros with a similar technician-driven, customer-rated service model. Comparable in customer experience emphasis but operates in different geographies.

Broad incumbents

• One Hour Heating & Air Conditioning: National franchised residential HVAC brand with broad geographic reach and standardized service delivery. Comparable in core offering and target customer but operates as a franchise network rather than a single regional contractor.
• Carrier: Major HVAC equipment OEM and Deljo's authorized brand partner. Comparable through the equipment ecosystem but operates as a manufacturer with national distribution rather than as a regional service contractor.
• Mitsubishi Electric (HVAC Division): Major ductless and heat-pump HVAC OEM of which Deljo is a Diamond Dealer. Relevant as an equipment supplier and brand standard, not a direct service contractor, but shapes the competitive landscape for heat-pump installations.

Others

• Lennox International: Major HVAC equipment manufacturer whose dealer network includes many regional contractors similar to Deljo. Relevant as a supplier and brand competitor in the residential HVAC equipment market.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCERV0EGgYSNTCz0B43AbMyg
• Facebookfacebook.com/deljoheating
• Xx.com/deljochicago

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Deljo Heating & Cooling