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Plumbing Company
Annapolis, MD
After-Hours and Weekend Emergency Services
Two-Year Labor Warranty
Same-Day Estimates
Finance Options
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Your Plumbing Company for Every Need
James A. Douglas Plumbing & Gas Fitting is a licensed, locally and family-owned plumbing company serving homes and businesses across the Greater Annapolis-Bowie area. From kitchen and bathroom plumbing to water heaters, drain and pipe work, and emergency repairs — we handle the plumbing services homeowners call about most. Every job is performed by licensed technicians, backed by a two-year labor warranty, and supported by over 17 years of experience.
We also provide specialty services that most plumbing companies don't — gas line installation and repair, sewer line work, septic and outdoor plumbing, water treatment systems, and sub-contractor services for builders and general contractors. Whether the job is routine or specialized, residential or commercial, scheduled or urgent — one company, one call. [Contact us](contact link) for a same-day estimate. Contact us for same day service.
Why Choose James A. Douglas Plumbing?
After-Hours and Weekend Emergency Services
Two-Year Labor Warranty
Financing Available
Over 17 Years of Experience
Same-Day Availability for Urgent Matters
Same-Day Estimates May Be Available
Military/First Responder Discounts


Plumbing Services
Your home's plumbing covers a lot of ground — kitchen sinks and dishwashers, bathroom fixtures and showers, water heaters, drains, and the pipes connecting all of it. We handle installation, repair, and replacement across four core areas: kitchen plumbing, bathroom plumbing, water heater services, and drain and pipe services. Whether it's a garbage disposal that quit, a toilet that won't stop running, a tankless water heater that needs maintenance, or a slow drain that's getting worse — call and we'll get it handled.
Specialty Services
Some jobs go beyond standard plumbing. We handle gas line installation and leak detection, residential and commercial sewer work, septic and outdoor plumbing, and water treatment and filtration systems. We also provide sub-contractor services for builders and general contractors, and full-service home improvement and renovation for larger projects. If your job requires specialized equipment, specific licensing, or experience most plumbers don't have — that's the work we were built for.

Senior Discount
Military/First Responder Discount
Contact us today for your military/first responder discount!
Senior Discount
Military/First Responder Discount
Contact us today for your military/first responder discount!
Recent Plumbing Projects



Here's what our satisfied customers are saying...
At James A. Douglas Plumbing & Gas Fitting LLC, we take pride in providing exceptional plumbing services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of James A. Douglas Plumbing & Gas Fitting LLC and let others know what you think.
Frequently Asked Questions About Our Plumbing Company in Annapolis, MD
What types of plumbing services do we provide for homeowners?
When homeowners come to us with questions about the range of services we offer, we explain that our work covers everything from routine repairs to full fixture replacements. As a plumbing company in Crofton, MD, we spend much of our time helping local households deal with clogged drains, leaky pipes, worn water heaters, and outdated plumbing lines that no longer perform well. At the same time, we also assist many families with larger upgrades such as new bathroom fixtures, kitchen plumbing improvements, or converting older systems to more efficient setups. Because we operate as a plumbing company in Annapolis, MD as well, we help many customers throughout the region who need reliable service and experienced workmanship for homes of all ages. We take pride in offering solutions that are thorough, long-lasting, and tailored to the specific needs of each property.
Do we handle plumbing emergencies?
Emergency calls are a significant part of what we do because plumbing problems rarely happen at convenient times. As a plumbing company in Crofton, MD, we often respond to issues like sudden pipe bursts, sewer line backups, and water heater failures that require immediate action to prevent further damage. Homeowners rely on us to arrive with the right tools and experience to stabilize the situation and prevent additional harm to their property. Working as a plumbing company in Annapolis, MD also means we regularly deal with emergencies in older waterfront homes where corrosion and aging pipes can create unexpected failures. In every case, we prioritize fast response times, clear communication, and practical repairs that help restore comfort and safety as quickly as possible.
Do we assist with plumbing upgrades and renovations?
Many customers ask whether we help with renovation projects, and the answer is yes. When homeowners remodel kitchens, bathrooms, or laundry rooms, our input is essential to create a plumbing layout that supports modern fixtures and appliances. As a plumbing company in Crofton, MD, we work with homeowners early in the renovation process to recommend the strongest materials, plan pipe routes, and determine the right fixture placements. Likewise, as a plumbing company in Annapolis, MD, we frequently assist clients with updating older systems to meet higher performance expectations and current building standards. Renovation work gives us the opportunity to replace outdated pipes, improve water pressure, install more efficient equipment, and maximize long-term function for the entire home.
Do we work with both gas and water systems?
Customers often want to know whether we handle gas lines as well as standard plumbing systems, and we do. As a plumbing company in Crofton, MD, we regularly install and repair gas lines for appliances such as water heaters, ranges, fireplaces, and outdoor grills. Working with gas requires precision and strong technical knowledge, and our experience allows us to complete this work safely and correctly. Because we also function as a plumbing company in Annapolis, MD, we work with many homes that use both natural gas and propane for different parts of the property. Whether we are repairing a water line or installing a new gas appliance, we approach every project with careful workmanship and a focus on long-term reliability.
Do we provide water heater repairs and installations?
Water heaters are one of the most critical systems in any home, and we receive many questions about repair and replacement options. As a plumbing company in Crofton, MD, we service traditional tank water heaters as well as modern tankless units that provide on-demand hot water. We diagnose issues such as low hot water supply, temperature fluctuations, or strange noises, and we help homeowners determine whether repair or replacement is the better option. Because we also operate as a plumbing company in Annapolis, MD, we have experience working with a wide range of brands and models, including systems designed for larger waterfront properties. Our work includes installation, maintenance, and performance evaluations to help every household get the most out of its water heating system.
Do we offer preventative maintenance services?
Many homeowners call us after a plumbing issue has already occurred, but we also offer preventative maintenance to help avoid costly problems in the first place. As a plumbing company in Crofton, MD, we inspect systems for early signs of wear, corrosion, hidden leaks, or inefficient components that may cause trouble later. Preventive care is especially valuable in older homes where plumbing systems experience natural aging over time. Similarly, as a plumbing company in Annapolis, MD, we provide routine maintenance for properties that depend on consistent performance, including those with more complex layouts or higher water usage. Preventive service allows us to catch minor issues early, extend the life of plumbing components, and help homeowners enjoy fewer interruptions and unexpected repairs.
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