The Best Plumbing Contractors in Portsmouth, NH

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

#1

Port City Plumbing

4.8
(142 reviews)
Verified

A highly-rated, full-service plumbing contractor serving Portsmouth and the Seacoast region. They specialize in both residential and commercial plumbing, with a strong emphasis on 24/7 emergency response. Known for their professionalism and expertise with local plumbing systems.

125 Heritage Ave, Portsmouth, NH 03801

Specialties & Features

24/7 Emergency Service
Drain and Sewer Cleaning
Water Heater Installation
Commercial Plumbing
Gas Line Services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#2

Seacoast Plumbing & Heating

4.7
(118 reviews)
Verified

A trusted, long-standing provider offering comprehensive plumbing and heating services. They excel in kitchen and bathroom remodels, pipe replacement, and efficient leak detection. Their team is well-versed in the specific demands of Portsmouth's older and newer homes.

1550 Lafayette Rd, Portsmouth, NH 03801

Specialties & Features

Bathroom & Kitchen Plumbing
Pipe Replacement
Leak Detection
Water Heater Repair
Residential Service

Business Information

Years in Business:25 years
Licensed:Yes
Insured:Yes
#3

Plumb Perfect

4.6
(96 reviews)
Verified

A reliable local plumber focused on high-quality workmanship and customer service. They offer a wide range of services from minor repairs and fixture installations to major sewer line projects and emergency plumbing fixes. They are known for their quick response times.

105 Corporate Dr, Portsmouth, NH 03801

Specialties & Features

Emergency Plumbing Repairs
Drain Cleaning
Sewer Services
Fixture Installation
Garbage Disposals

Business Information

Years in Business:12 years
Licensed:Yes
Insured:Yes

Why These Are the Top Plumbing Contractors in Portsmouth

The plumbing market in Portsmouth, NH, is characterized by a mix of historic colonial-era homes and modern commercial buildings, creating diverse demands. Common issues include repairs for aging cast iron and galvanized pipes, drain problems in older systems, and winter-related emergencies like frozen pipes. Local contractors must be proficient with both historic preservation guidelines and modern code requirements. The market is competitive with several well-established providers offering 24/7 emergency services to cater to the year-round needs of residents and the bustling downtown business district.

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 Portsmouth regulations and climate

Frequently Asked Questions About Plumbing in Portsmouth

Get answers to common questions about plumbing services in Portsmouth, New Hampshire.

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

The most frequent issues stem from our harsh winters and historic home infrastructure. Frozen and burst pipes are a major seasonal concern, requiring proper insulation of pipes in crawl spaces and along exterior walls. Additionally, many older Portsmouth homes have galvanized steel pipes that are prone to corrosion and reduced water flow, and our coastal, sometimes hard water can accelerate mineral buildup in fixtures and water heaters.

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

Pricing in the Seacoast region is typically higher than national averages due to local labor and operating costs. For example, a standard water heater installation often ranges from $1,200 to $2,500+, while emergency service call fees (common for after-hours frozen pipes) can start at $150-$300 before repair work. Always request a detailed, written estimate that includes parts, labor, and any potential permit fees required by the City of Portsmouth.

3When is the best time to schedule non-emergency plumbing work in Portsmouth?

Schedule routine maintenance, like drain cleaning or water heater servicing, in the late spring or early fall. These periods avoid the peak summer tourism season when plumbers are busy with service calls for rental properties and new construction, and they come before the winter emergency rush. Proactively addressing issues before freezing temperatures set in is crucial for preventing costly winter emergencies.

4What should I look for when choosing a plumber in Portsmouth, NH?

Always verify that the plumber is licensed by the State of New Hampshire (Master Plumber license) and insured. For work in Portsmouth's many historic districts, choose a company with specific experience navigating potential preservation guidelines. Check for local, established companies with strong community reviews, as they understand the specific challenges of our older homes and municipal water and sewer systems.

5Are there any local regulations I need to be aware of for plumbing projects in my Portsmouth home?

Yes. The City of Portsmouth requires permits for most plumbing work beyond simple repairs, including water heater replacements, re-piping, and adding new fixtures. Furthermore, if your home is in a designated historic district, exterior work or modifications that affect the building's structure or character may require additional approval from the Historic District Commission before a plumbing permit is issued.