The Best Plumbing Contractors in Williamsport, MD

Compare the highest-rated plumbing professionals in Williamsport, Maryland. All contractors are licensed, insured, and verified through our rigorous screening process.

#1

Williamsport Plumbing & Heating

4.8
(45 reviews)
Verified

A locally-owned and operated full-service plumbing and HVAC company serving Williamsport and surrounding areas. They specialize in both residential and commercial plumbing, offering 24/7 emergency response for burst pipes, clogged drains, and water heater failures. Known for their expertise with older home plumbing systems common in the area.

15 N Conococheague St, Williamsport, MD 21795

Specialties & Features

24/7 Emergency Service
Water Heater Repair/Installation
Drain and Sewer Cleaning
Gas Line Services
Whole-House Repiping

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#2

Larry & Sons Plumbing, Heating & Air Conditioning

4.7
(325 reviews)
Verified

A highly-rated regional provider that serves Williamsport from their Hagerstown base. They are a large, established company known for rapid response times and handling complex commercial and residential projects. They have a massive fleet of trucks and offer a strong warranty on their work, including water heater installation and advanced drain cleaning.

Serves Williamsport from Hagerstown, MD

Specialties & Features

24/7 Emergency Service
Tankless Water Heaters
Video Drain Inspection
Sewer Line Replacement
Commercial Plumbing

Business Information

Years in Business:45 years
Licensed:Yes
Insured:Yes
#3

Horizon Services

4.6
(210 reviews)
Verified

A major plumbing, HVAC, and electrical contractor serving the broader Tri-State area, including Williamsport. They are known for professional, clean, and efficient service with a focus on customer education. They offer a wide range of services from minor faucet repairs to major sewer line replacements and are a preferred installer for high-efficiency plumbing fixtures.

Serves Williamsport from Hagerstown, MD

Specialties & Features

24/7 Emergency Service
Sewer and Water Main Services
Leak Detection
Bathroom Remodeling Plumbing
Water Filtration Systems

Business Information

Years in Business:30 years
Licensed:Yes
Insured:Yes

Why These Are the Top Plumbing Contractors in Williamsport

Williamsport, MD is a small historic town on the Chesapeake and Ohio Canal. The local plumbing market is characterized by a mix of historic homes (100+ years old) with older galvanized steel or cast iron pipes and newer suburban developments. Common issues include tree root intrusion in sewer lines due to mature trees, hard water problems affecting water heaters and fixtures, and the need for updates to meet modern code requirements. The market is competitive but dominated by a few well-established local companies and larger regional players based in Hagerstown who cover the area.

High Ratings

4.7+ star average from verified customer reviews

Fully Licensed

All contractors are properly licensed and insured

Proven Experience

10+ years average experience in the industry

Local Experts

Familiar with Williamsport regulations and climate

Frequently Asked Questions About Plumbing in Williamsport

Get answers to common questions about plumbing services in Williamsport, Maryland.

1What are the most common plumbing issues for Williamsport homeowners, especially related to our climate?

Due to Maryland's seasonal temperature swings, frozen and burst pipes in winter are a major concern, particularly in older homes or crawl spaces without proper insulation. We also frequently address slow-draining sinks and sewer line backups, which can be exacerbated by the mature tree roots common in Williamsport neighborhoods seeking moisture. Summer often brings calls for sump pump failures or maintenance due to heavy seasonal rains.

2How much should I expect to pay for common plumbing services in the Williamsport area?

Regional pricing in Washington County is generally moderate. For standard service calls (e.g., unclogging a drain, repairing a faucet), expect a base service fee of $80-$150 plus parts. Larger projects, like water heater replacement, typically range from $1,200 to $3,500 depending on the unit type and complexity. Always request a detailed, written estimate that includes labor, materials, and any potential permits required by Washington County.

3Are there specific local regulations or permits I need to be aware of for plumbing work in Williamsport?

Yes, for any significant plumbing work—such as moving water lines, installing a new water heater, or adding a bathroom—a permit from Washington County's Division of Plan Review and Permitting is usually required. Reputable local plumbers will handle this process. It's crucial for ensuring work meets Maryland state plumbing code and local amendments, which include standards for freeze protection and backflow prevention.

4What should I look for when choosing a reliable plumber in Williamsport?

First, verify they are licensed, insured, and bonded to work in Maryland. Look for established local companies with deep community roots, as they understand the specific infrastructure and water conditions in Williamsport. Check for positive reviews on local community pages and ask about their emergency service availability, especially during our cold snaps when pipe emergencies are time-sensitive.

5What seasonal plumbing maintenance is critical for my home in Williamsport?

Before winter (late fall), disconnecting and draining outdoor hoses and insulating pipes in unheated areas is essential to prevent freezing. In spring, inspect your sump pump and consider having your sewer line scoped if you have large trees nearby, as root growth is active. Annually, check your water heater for sediment buildup, which is common with Maryland's moderately hard water, to maintain efficiency and lifespan.