Larry & Sons
Top Rated Business by HomeAdvisor


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  • Larry & Sons
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(301) 733-5428

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  • Larry & Sons
    Larry & Sons
    From Our Family to Yours!
    0% Financing Available
  • R-22 Refrigerant Phase Out: What It Means For You!
    0% Financing Available
  • Larry & Sons
    Special Offer
    $500 off Bathroom Remodels!
    0% Financing Available
  • Community Involvement
    Thank You, Neighbors!
    0% Financing Available
  • Larry & Sons
    Service Call Special
    For Plumbing & Repairs
    0% Financing Available
  • 5 Star Service
    Thank You for all your wonderful reviews!
    0% Financing Available
Here to Help
Click our services for more details
  • Plumbing
  • Heating
  • Air Conditioning
    Air Conditioning
  • Drain & Sewer
    Drain & Sewer
  • Electrical
  • Bathroom Remodel
    Bathroom Remodel
Home of the Lifetime Guarantee
Frederick MD Plumber
Money Saving Coupons!

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Our Current Promotions
  • Energy Rebates

    Save money on your new water heater, air conditioner or heating system with energy rebates.

  • 12 Months No Interest Financing Available

    12 Months No Interest Financing available on most products and services! Call to find out more!

Your Positive Reviews Mean SO MUCH To Us. Thank You!
See what our
are saying
  • Melissa Shifflett
    Melissa Shifflett

    “Just bought my house literally a week ago and have already met 3 of your wonderful technicians (2 heating and 1 plumbing). They are polite and personable, and I feel like I can trust that they are doing what is best for my home… not just for the [Read More…]

  • Ann Ford
    Ann Ford

    “Thank you so much to everyone from Larry and Sons. Everyone I deal with on the phone is always great; Amy-Jo and Heather are always so nice. I called in with a broken water line emergency; Rich came out quickly and got me a temporary water line set [Read More…]

Larry & Sons Plumbing Heating & Cooling Services for the Hagerstown & Frederick, MD areas!

Learn More About Us

As Seen on TV! Larry & Sons Hagerstown, MD At Larry & Sons, you’ll find an expert to able perform nearly any home service you need. We offer installation, repair and maintenance of heating, air conditioning, geothermal, solar and indoor air quality systems. We service all makes and models, even if we didn’t install your system to begin with.

We are full–service plumbers, offering water heater repair and installation, sewer and drain services and water treatment systems. We can handle any size job, whether it’s a leaky faucet, a clog or an entire bathroom remodel!

We pride ourselves on our personal customer service that we offer to each and every one of our customers. We strive to not only be a great company, but an active member of our community. When you choose Larry & Sons, you are choosing a company that cares about both our customers and our neighbors.




Golden Guarantee
  • We Value Your Time Guarantee
    Our call center is open 24 hours a day, 7 days a week and when you call, you will always speak with a live person. Our experienced customer service representatives will schedule an appointment that is convenient for you. Before our Service Expert arrives at the appointed time, we will give you a call so you don’t have to waste your valuable time waiting or worrying.
  • We Value Your Safety Guarantee
    Our Service Expert will arrive in a Larry & Sons truck, wearing a Larry & Sons uniform. All of our Service Experts carry identification cards, which you may ask to see before letting them in your home. Larry & Sons is fully licensed and insured for your safety and protection.
  • We Value Your Home Guarantee
    Our Service Experts use floor protecting shoe covers and tarps to protect your home. We make sure they leave your home’s interior in the same condition it was in before they arrived. If we don’t get it to your satisfaction we will clean your home.
  • We Value Your Satisfaction Guarantee
    We agree to accept responsibility for your complete satisfaction with the materials we use and the workmanship we provide. During the first year, if you are dissatisfied with our service or our people for any reason, we will do whatever it takes to make it right and correct the problem to your satisfaction.
  • Workmanship Guarantee
    Our service experts are the best in skill, attitude and workmanship. We provide ongoing training keeping them up to date with new market developments. That means you get the most knowledgeable Service Expert in the business. They will care for your home and complete the job in a timely manner with precision. They will clean up when they are finished and will take personal responsibility for your satisfaction. They will not smoke or swear in or near your home and are drug free. If, when they have finished in your home they have not performed in accordance with these high standards, we will refund whatever portion of the purchase price you feel to be fair and reasonable.
  • Lifetime Replacement Guarantee
    Larry & Sons warrants and guarantees to the original purchaser, that should Customer accept and purchase Larry & Sons’ recommended repair, such repair shall be free from defect in materials and workmanship under normal use and conditions for as long as the Customer owns the residence in which the recommended repair was provided or until the Unit in which the Covered Repair was performed, if applicable, is replaced.
  • "No Lemon" Guarantee
    Manufacturer’s have acknowledged that 3% of their equipment comes from the factory with some kind of defect. We guarantee that when the equipment we have installed is maintained and operated in accordance with the manufacturer’s operation and maintenance manuals, should your compressor or heat exchanger fail in the first five years... we will replace it with a brand new current model free of charge.
Providing services to Hagerstown, Frederick, and surrounding areas
[ Click to Find a Service Near You ]
Contest Winners
$100 goes a long way towards, well, all sorts of things!

So you want a chance to win, right? All you need is one of those legendary #LarryandSons yard signs posted in your yard!

If you don't have one and want to get in on the action, just call our main office line!
  • August Contest Winner!
    Here are our Winners!
    August Contest Winner!
    Yard Sign Winner - Rocky W.
  • September Contest Winner!
    Here are our Winners!
    September Contest Winner!
    Yard Sign Winner - Bill R.
  • October Contest Winner!
    Here are our Winners!
    October Contest Winner!
    Yard Sign Winner - Jarrel K.
  • November Contest Winners!
    Here are our Winners!
    November Contest Winners!
    Yard Sign Winners - Jean & Stanley P.
  • January Contest Winners!
    Here are our Winners!
    January Contest Winners!
    Yard Sign Winners - Kay & Edward A.
  • March Money Ball Winner!
    Here are our Winners!
    March Money Ball Winner!
    Money Ball Winner - Karen M.
  • April Contest Winner!
    Here are our Winners!
    April Contest Winner!
    Yard Sign Winner - Carolyn T.
  • May Contest Winner!
    Here are our Winners!
    May Contest Winner!
    Yard Sign Winner - Eloisa B.
  • June Contest Winner!
    Here are our Winners!
    June Contest Winner!
    Yard Sign Winner - Debbie H.
  • June Contest Winner
    Here are our Winners!
    June Contest Winner
    Yard Sign Winner - Doris M.
  • July Contest Winner!
    Here are our Winners!
    July Contest Winner!
    Yard Sign Winner - Diana S.
  • August Contest Winner
    Here are our Winners!
    August Contest Winner
    Yard Sign Winner - Judy H.