FARNEN AND DERMER, INC.

What FARNEN AND DERMER, INC. does

Farnen & Dermer, Inc. is a privately held, family-owned residential home-services company headquartered in Owings Mills, Maryland, founded in 1902 by Leon Dermer and now in its fifth generation of family ownership. The company delivers HVAC (heating, ventilation, and air conditioning), plumbing, and indoor air quality services to homeowners across Baltimore County and surrounding Maryland communities, including Owings Mills, Pikesville, Towson, Catonsville, and Parkville. Service delivery is centered on factory-trained technicians dispatched from the Owings Mills office, with same-day scheduling available seven days a week and 24/7 emergency response via a dedicated phone line. The company services all major makes and models of HVAC equipment, including gas furnaces, oil furnaces, heat pumps, boilers, central air conditioning, ductless mini-splits, and smart/Wi-Fi-enabled thermostats.

The company's product portfolio spans installation, repair, and maintenance across its core lines, complemented by indoor air quality hardware such as Aprilaire air cleaners, ActivTek air scrubbers, and whole-home humidifiers. The Energy Saving Maintenance Agreement program bundles annual heating and cooling tune-ups with priority scheduling and repair discounts, generating a recurring-revenue layer on top of the predominantly transactional project revenue. Customer financing is offered through the Wells Fargo Home Projects credit card, including promotional structures such as new furnace installations starting at $99/month, 60-month 0% financing on qualifying systems, and utility rebates and federal tax credits on heat pumps.

Revenue is generated primarily through professional services fees for repair, installation, and maintenance, supplemented by hardware sales of thermostats and IAQ products and subscription-like recurring revenue from maintenance agreements. The go-to-market is direct-to-consumer via phone, online booking, a regional website, organic social media on Instagram, Facebook, LinkedIn, and X/Twitter, content marketing, and a referral channel operated through the ReferPro platform. The firm employs between 11 and 50 people, holds an A+ rating with the Better Business Bureau, and operates without any disclosed external funding, acquisitions, or parent-company affiliation.

Name

FARNEN AND DERMER, INC.

Legal name

Farnen & Dermer, Inc.

Website

https://farnendermer.com

Company type

Private

Founded year

1902

Operating status

Operating

Headcount range

11–50 employees

Short description

Farnen & Dermer is a 5th-generation, family-owned residential HVAC, plumbing, and indoor air quality services company founded in 1902, serving homeowners across Baltimore County, Maryland from its Owings Mills headquarters.

Ownership category

akta.pro rank

Product category

Residential HVAC Services

NAICS

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

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

Mini-Split / Ductless HVAC Service & Repair (HSAOAHAH)

akta.pro secondary industry

HVAC Controls & Optimization (Smart Thermostats, VAV, Chillers/Boilers Controls) (BPABAGAB)

Keywords

• Residential HVAC services
• Heating and cooling
• Plumbing services
• Indoor air quality
• HVAC maintenance

Headquarters

HQ city

Owings Mills

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. HVAC Services (Repair, Installation, Maintenance): Revenue generated from providing heating and cooling repair, installation, and maintenance services to residential homeowners in Baltimore County. Services include furnace repair/installation, heat pump services, boiler services, AC repair/installation, and emergency HVAC response. Pricing includes same-day service fees and emergency call charges.
2. Plumbing Services: Revenue from plumbing repair and installation services including water heaters, sump pumps, garbage disposals, drains, and related plumbing fixtures.
3. Indoor Air Quality Products and Services: Sales and installation of indoor air quality products including humidifiers, air cleaners (Aprilaire), air scrubbers (ActivTek), and associated maintenance services.
4. Thermostat Sales and Installation: Installation of smart and programmable thermostats including WiFi-enabled models (e.g., Nest) that integrate with home automation systems.
5. Maintenance Agreements: Recurring revenue from annual Energy Saving Maintenance Agreement program, which provides scheduled tune-ups and priority service in exchange for annual fees.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Farnen & Dermer provides residential HVAC, indoor air quality, and plumbing services to homeowners in Baltimore County and surrounding Maryland areas. Service offerings include repair, installation, and maintenance of furnaces, heat pumps, boilers, central air conditioning, ductless mini-splits, smart thermostats, water heaters, sump pumps, garbage disposals, and drains, plus 24/7 emergency response and an annual Energy Saving Maintenance Agreement program.

Product overview

Farnen & Dermer is a 5th-generation family-owned HVAC service company offering a comprehensive portfolio of residential heating, cooling, plumbing, and indoor air quality services throughout Baltimore County, Maryland since 1902. The company provides installation, repair, and maintenance for furnaces, heat pumps, boilers, central air conditioning, ductless mini-splits, smart thermostats, and plumbing systems. Additional offerings include emergency HVAC services (24/7), an annual Energy Saving Maintenance Agreement program, HVAC financing options through Wells Fargo, and indoor air quality products such as humidifiers, air cleaners (Aprilaire), and air scrubbers (ActivTek). The company services all major HVAC brands including American Standard and Amana equipment.

Differentiator

Problem solved

Functional benefit

Products and services

• Heating Services Comprehensive heating solutions for residential homeowners in Baltimore County, including furnace repair, installation, and maintenance; heat pump services; boiler services; thermostat installations; and ductwork. Covers gas furnaces, oil furnaces, heat pumps, and boilers.
• Air Conditioning Services Full air conditioning services for Baltimore County homeowners, including AC repair, new system installation, maintenance, inspections, and ductless mini-split systems.
• Indoor Air Quality Services Indoor air quality solutions for homeowners, including humidifiers, Aprilaire air cleaners, and ActivTek air scrubbers to improve air filtration and reduce allergens and pollutants.
• Plumbing Services Residential plumbing services covering water heaters, sump pumps, garbage disposals, drains, and professional installations and repairs.
• Emergency HVAC Services 24/7 emergency heating and cooling services with same-day response available seven days a week for urgent HVAC issues in Baltimore County homes.
• Energy Saving Maintenance Agreement Annual maintenance program providing one heating tune-up and one cooling tune-up per year, with priority scheduling and discounts on repairs for enrolled customers.
• Smart Thermostat Services Installation and upgrade services for smart and WiFi-enabled thermostats including Nest and programmable models, with remote access and energy monitoring capabilities.
• Ductless Mini-Split Systems Ductless mini-split HVAC systems offering zoned heating and cooling with up to 30% energy savings, ideal for homes without existing ductwork.
• HVAC Financing Flexible financing options including Wells Fargo Home Projects credit card with special promotional offers, low monthly payments, and 60-month 0% financing on qualifying HVAC systems.

Quantifiable outcome

• Same-day service available seven days a week, including 24/7 emergency availability
• +3 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• ReferProminorGTM or Marketing PartnerFarnen & Dermer utilizes ReferPro's referral platform (referrals.referpro.com/r/farnen-dermer) to generate customer referrals. The referral program enables existing or new customers to refer friends and family to Farnen & Dermer's HVAC services.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Carrier Residential: Carrier Residential is a major manufacturer of residential heating, cooling, and indoor air quality products distributed through local dealers. It is a broad incumbent peer because Farnen & Dermer services Carrier-installed equipment across Baltimore County and competes against Carrier-affiliated dealers for installation jobs.
• Lennox International: Lennox International is a major manufacturer of residential and commercial HVAC systems, including the Dave Lennox Signature Collection and premium efficiency lines. It is a broad incumbent peer because the equipment Farnen & Dermer installs is largely Lennox and Lennox-adjacent, and Lennox's Dealer Excellence programs influence local installer reputation and lead flow.
• Trane Technologies: Trane Technologies is a global manufacturer of HVAC systems and a provider of related service through Trane dealer networks. It is a broad incumbent because the equipment Farnen & Dermer installs and services is largely Trane-adjacent, and Trane's dealer programs shape local installer economics and competitive dynamics.
• Service Experts Heating, Air Conditioning & Plumbing: Service Experts is a large national residential HVAC and plumbing services platform operating hundreds of service locations across the U.S. and Canada. It is a broad incumbent peer because it offers the same residential HVAC service portfolio but at national scale with broader geographic reach and call-center infrastructure that Farnen & Dermer cannot match.
• Roto-Rooter Plumbing & Water Cleanup: Roto-Rooter is a national residential and commercial plumbing, drain, and water cleanup services franchise. It is a broad incumbent peer because it competes with the plumbing portion of Farnen & Dermer's offering with national brand recognition and 24/7 emergency response, though it does not specialize in HVAC.

Direct peers

• Benjamin Franklin Plumbing: Benjamin Franklin Plumbing is a national residential plumbing services franchise under Authority Brands with strong punctuality branding ("on time or it's free"). It is a direct peer on the plumbing side of Farnen & Dermer's offering, with comparable emergency-response positioning in suburban U.S. markets.
• Horizon Services: Horizon Services is a privately held residential HVAC, plumbing, and electrical services company serving Delaware, Maryland, Pennsylvania, and New Jersey. It is a direct peer because it offers the same bundled HVAC/plumbing service portfolio to homeowners in adjacent Mid-Atlantic markets, with similar multi-trade positioning and emergency response emphasis.
• One Hour Heating & Air Conditioning: One Hour Heating & Air Conditioning is a national franchise network under Authority Brands delivering residential HVAC installation, repair, and maintenance with a strong emphasis on punctuality ("on time or it's free"). It is a direct peer because it sells the same residential HVAC service experience with emergency response and upfront pricing in the same suburban U.S. markets as Farnen & Dermer.
• Mr. Plumber & Drain Cleaning of Maryland: Mr. Plumber & Drain Cleaning of Maryland is a local residential plumbing services provider operating in the Baltimore metro. It is a direct peer on the plumbing side of Farnen & Dermer's offering, competing for the same homeowner segment in an overlapping service territory.

Others

• HomeServe USA: HomeServe USA is a home services membership and repair plan provider that contracts with local trade contractors to fulfill HVAC, plumbing, and electrical repair work. It is an "Others" peer because it is not a direct competitor but functions as a customer acquisition and dispatch channel for residential HVAC and plumbing service providers including Farnen & Dermer's category.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/farnen-and-dermer-inc.

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 FARNEN AND DERMER, INC.