Expert diagnosis and repair of leaks, clogs, and pipe issues with efficient service.
Professional installation of heating and air conditioning systems, including boilers and gas lines.
Comprehensive project management for plumbing and HVAC upgrades, ensuring quality and cleanliness.
Timely response for urgent plumbing and HVAC problems to minimize disruption.
Regular check-ups and servicing to keep systems running efficiently and prevent future issues.
Mr Eugene came out around 9am, he diagnosed the issue, explained to me the problem and the solution, and gave me the options I had. Mr Eugene seems like he has plenty experience because he was efficient, came in and did the work and was very professional and friendly. I appreciate him getting us right.
I can’t say enough good things about Marlin from Len The Plumber. From start to finish, the experience was professional, efficient, and stress-free. The technician arrived earlier then expected, was extremely knowledgeable, and took the time to clearly explain the issue and the best solution no pressure, no upselling, just honest expertise. The work was completed quickly and with great attention to detail. Everything was left clean, and my system is now running better than it ever has. It’s rare to find a company that combines excellent customer service with high-quality workmanship, but Marlin truly delivers on both. If you’re looking for a reliable, trustworthy, and skilled HVAC company, Marlin from Len The Plumber is the one to call. Highly recommended!
All staff were extremely courteous, the appointment was scheduled in a timely manner.. our only complaint is the cost. The plumber arrived then left for an hour to get a pipe, worked for a bit then needed to leave again this time for over an hour for a blade- the total hour and a half of work was much more expensive - I was told since I signed off on the pricing before that’s the cost - be careful that’s were they get you. All in all the problem was resolved and I learned a lesson. I asked for a call back to discuss the logistics but never rec’d one.
The Len’s team was wonderful. They worked all day and did a beautiful installation of a new gas heated boiler system. They were pleasant, efficient, talked me through the features of the new system, and cleaned up the area nicely. Highest possible recommendation.
Joe and Dan did a fantastic job installing a very long gas line to a future pool heater. Thourgh, neat, and very professional. They did not mind at all with me watching them work and answering all my questions. I would not hesitate these guys doing more work in the future.

Your trusted partner for plumbing and HVAC solutions in Baltimore.
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Len The Plumber Heating & Air, LLC is a premier plumbing and HVAC service provider based in Halethorpe, MD, serving the Baltimore area with over 15,000 positive reviews. We specialize in professional plumbing repairs, heating and air conditioning installations, and general contracting services. Our team of experienced technicians, like Marlin and Eugene, ensures timely, courteous, and efficient solutions for residential and commercial clients. With a focus on quality workmanship and transparent pricing, we resolve issues from gas lines to boiler systems, leaving your space clean and your systems running smoothly. Trust us for reliable, expert service that puts your comfort first.
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