Rittenhouse is now a proud member of the Tevis Family of Companies! Together, with Tevis Energy and Modern Comfort Systems, we are honored to serve the thousands of families who trust us to keep their homes comfortable all year long! No other company is as dependable or responds as quickly as Tevis Energy and Modern Comfort to deliver quality heating oil, get your systems running again, or help you plan a future system upgrade!

We repair and maintain ALL types of heating, cooling, and hot water systems.
From heat pumps and heating oil delivery in the winter, to air conditioning in the summer, we restore comfort fast! With regular maintenance, our technicians will help ward off future repair calls, lower annual energy costs, and prolong the life of your furnace, air conditioning, or heat pump system!

When it’s time to replace your heating or air conditioning system, let us help. 
Advancements in technology require that homeowners carefully select a company that they not only trust, but who has the technical expertise to present them with the full range of solutions available to meet their specific needs. In addition to traditional oil heat, propane, electric, and gas systems, we offer geothermal and high-efficiency ductless systems! Our system installation team is both fully trained and fully trusted! And we offer an industry leading 10 year parts and labor warranty on qualifying installations!

Rittenhouse Services offered in Baltimore County and nearby Harford County

automatic delivery
Heating Oil Delivery

Fair Pricing, Flexible Payment Options


Repair, Replacement, Installation

Air Conditioning

Repair, Replacement, Installation

Water Heaters

Repair, Replacement, Installation

Generator Services

Repair, Replacement, Installation

Commercial Fueling

Gasoline, On-Road & Off-Road Diesel Delivery to Businesses