The Best Plumbing Contractors in Dover, NH

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

#1

Dover Plumbing & Heating, Inc.

4.8
(127 reviews)
Verified

A full-service, family-owned plumbing and heating contractor serving Dover and the Seacoast area for decades. They specialize in both residential and commercial plumbing, offering 24/7 emergency response. Known for high-quality workmanship and expertise with all types of pipe systems, from repipes to new installations.

65C New Rochester Rd, Dover, NH 03820

Specialties & Features

24/7 Emergency Service
Water Heater Installation & Repair
Pipe Installation & Replacement
Commercial Plumbing
Drain Cleaning

Business Information

Years in Business:35 years
Licensed:Yes
Insured:Yes
#2

Plumb Perfect

4.7
(94 reviews)
Verified

A highly-rated local plumbing company known for its prompt, professional service and expertise in both routine maintenance and complex emergency repairs. They offer comprehensive services including advanced leak detection, drain and sewer cleaning, and fixture installation for kitchens and bathrooms.

25C Old Rollinsford Rd, Dover, NH 03820

Specialties & Features

Leak Detection & Repair
Drain & Sewer Services
Bathroom & Kitchen Plumbing
Emergency Plumbing Repairs
Water Heater Services

Business Information

Years in Business:15 years
Licensed:Yes
Insured:Yes
#3

Tri-City Plumbing & Heating

4.6
(112 reviews)
Verified

Serving the Tri-City area of Dover, Somersworth, and Rochester, this established provider offers robust plumbing services for homes and businesses. They are a go-to for emergency repairs, water heater issues, and resolving stubborn drain clogs. Their technicians are well-versed in New Hampshire plumbing codes.

5 Webbs Lane, Dover, NH 03820

Specialties & Features

24/7 Emergency Service
Drain Cleaning & Sewer Services
Water Heater Installation & Repair
Residential & Commercial Plumbing

Business Information

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

Why These Are the Top Plumbing Contractors in Dover

The plumbing market in Dover, NH, is competitive with a mix of long-standing family businesses and newer, highly-rated specialists. Common issues for homeowners in this historic New England city include dealing with older pipe systems (like galvanized steel or orangeburg), hard water affecting appliances, and the need for prompt emergency service during cold winters to prevent frozen and burst pipes. Local contractors are familiar with the specific code requirements of the city and the challenges of the region's geology, which can affect sewer and water lines.

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 Dover regulations and climate

Frequently Asked Questions About Plumbing in Dover

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

1How do Dover's cold winters impact my plumbing, and what preventative maintenance should I prioritize?

Dover's harsh winters, with temperatures often dropping below freezing for extended periods, make frozen and burst pipes a major risk. Homeowners should prioritize insulating pipes in unheated areas like basements and crawlspaces, disconnecting and draining outdoor hoses, and ensuring heat is maintained in the home during cold snaps. It's also wise to know the location of your main water shut-off valve in case of an emergency burst.

2Are there specific local regulations in Dover or New Hampshire I should know about for plumbing repairs or installations?

Yes, all plumbing work in Dover must comply with the New Hampshire State Plumbing Code, which is based on the International Plumbing Code (IPC). Furthermore, any significant work requires a permit from the City of Dover's Building Department, and the work must be performed or supervised by a licensed New Hampshire plumber. This is especially important for projects like water heater replacements, bathroom additions, or sewer line work.

3What is a typical price range for common plumbing services in the Dover area, like fixing a leaky faucet or clearing a drain?

Pricing varies by company and job complexity, but for standard service calls in the Seacoast region, you can expect a base service fee of $100-$200, plus parts and labor. For example, fixing a common leaky faucet might total $150-$300, while hydro-jetting a severely clogged main drain could range from $400-$800. Always request a detailed estimate before work begins.

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

Always verify that the plumber holds a current New Hampshire Master or Journeyman Plumber license. Look for established local companies with strong community reputations, proper insurance, and clear warranties on their work. Checking reviews specific to Dover and the Seacoast area can also provide insight into their reliability, especially during winter emergencies when response time is critical.

5My home is older, with cast iron pipes. Is this a common issue in Dover, and what are my options?

Yes, many historic and older homes in Dover's neighborhoods like Bellamy Park or the downtown area have original cast iron sewer lines. These pipes are prone to corrosion, bellies, and root intrusion over time. A local plumber can perform a video camera inspection to assess their condition. Options range from targeted repairs to trenchless pipe lining (CIPP), which is often ideal for minimally disrupting Dover's mature landscapes and paved surfaces.