GET TO KNOW SMO

for all your HVAC, heating oil, propane and home comfort needs.

Heating fuel delivery

Propane, heating oil, kerosene and diesel.

Special offers

$125 free heating oil
Up to $500 free propane

HVAC equipment service and sales

Tune-ups, special offers and service plans

Proudly serving southern Maryland for 100 years.

Generations of customers in Anne Arundel, Calvert, Charles, Prince George’s and St. Mary’s counties have trusted us to provide excellent heating fuel, HVAC solutions and customer service carried out by highly qualified and trained industry experts. With 24/7 local emergency services, our team is always here when you need us – in any weather. That’s why more of your neighbors get to know SMO.

Free equipment and fuel estimates.

We deliver heating oil and propane across Southern Maryland, to both homes and businesses. From oil burning boiler repair to AC system replacement, we can take care of all your HVAC repair, maintenance and installation needs.

Complete this form to get your free fuel or equipment estimate today!

What our customers say.

Rated 5 out of 5

Steven Marlatt came to my home to give me an estimate. Very professional, polite and highly detailed in his estimating the work I needed. Steve's customer service is in the top 1% of what I have experienced."

- James S.

Get to know SMO for home comfort and energy saving tips.

What can I do if one of my rooms is always cold?

Tell me more

How much oil do I burn in a day?

Get the answer

How to save on energy costs this winter.

Get the facts

We Value Your Privacy

This website uses third-party tools to process personal data. We do not sell personal information and only share data with trusted service providers who perform services on our behalf. Consumers may contact us to exercise privacy rights available under applicable U.S. state privacy laws. Learn more in our Privacy Policy.