Mainline Plumbing

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Mainline Plumbing Mainline Plumbing, Well Pumps, and Water Treatment was established in 1992. We are dedicated to providing 5-star customer service in Southern New Hampshire.
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Our expert technicians provide professional solutions and peace of mind to your individual needs. Progressive, family owned and operated business
Trusted and recommended in southern New Hampshire since 1987
Licensed NH Master Plumbers and state approved apprentices
Highly trained, skilled professionals eager to fulfill your plumbing needs

💧 NO WATER? WE’VE GOT YOU COVERED! 💪🔧When a homeowner loses their water, our team is ready to get to work! 🚛💙Here are ou...
10/27/2026

💧 NO WATER? WE’VE GOT YOU COVERED! 💪🔧

When a homeowner loses their water, our team is ready to get to work! 🚛💙

Here are our guys are on-site tackling a no-water issue with the help of our crane equipment to get the job done safely and efficiently.

At Mainline Plumbing, we specialize in well pumps and water treatment, helping homeowners get their water flowing again when they need it most!

👏 Shoutout to our hardworking crew for putting in the work, no matter what the job calls for.

📞 Having a no-water issue? Give Mainline Plumbing a call — we’re here to help!

No water? No problem! Mainline has you covered!! Everyone welcome Will! What’s better than having a licensed tech who is...
10/21/2026

No water? No problem!
Mainline has you covered!!
Everyone welcome Will!
What’s better than having a licensed tech who is happy to be there?

09/30/2026

💦 WATER TREATMENT WEDNESDAY! 💦

Which of these can be a sign that your home may benefit from water treatment?

A.) Staining on sinks or fixtures
B.) Unpleasant taste or odor
C.) Hard-water buildup
D.) All of the above

🤔 What’s your answer?

👇 Comment A, B, C, or D!

09/29/2026

🔧 TUESDAY TRIVIA! 💧

What is one possible sign that your well pump or water system may need attention?

A.) Low water pressure
B.) Fluctuating water pressure
C.) No water
D.) All of the above

👇 Drop your answer below!

09/28/2026

💧 MONDAY TRIVIA FOR THIS RAINY DAY!💧

True or False?

🌧️ Heavy rain can potentially affect the quality of your well water, especially if a well is not properly protected.

👇 Comment TRUE or FALSE and let’s see who knows their well water!

💙 Mainline Plumbing

09/22/2026

💧 WHAT’S IN YOUR WATER?

Your water may look perfectly clear, but that doesn’t always mean it’s free from unwanted minerals, metals, or other water-quality issues.

At Mainline Plumbing, we can test your water and help determine what treatment options may be right for your home.

💦 Better water starts with knowing what’s in it.

Today we celebrate George’s 1st anniversary with Mainline Plumbing! It feels like he’s been a part of the family for a l...
08/11/2026

Today we celebrate George’s 1st anniversary with Mainline Plumbing! It feels like he’s been a part of the family for a lot longer than a year!

We are so thankful for George. He is hardworking, loyal, dependable, and just an amazing man.

If you see George this week, be sure to wish him a happy anniversary! 🎉 🎊 😎

We’re Hiring! Licensed PlumberJoin the Mainline Plumbing team!$150,000+/Year with performance incentives.Mainline Plumbi...
08/05/2026

We’re Hiring! Licensed Plumber

Join the Mainline Plumbing team!
$150,000+/Year with performance incentives.

Mainline Plumbing is a family-owned and operated company that has proudly served Southern New Hampshire for over 30 years. We specialize in well pumps and water treatment systems, and we’re committed to providing our customers with the highest quality service. As we continue to grow, we’re looking for a friendly, dependable, and experienced full-time Licensed Plumber to join our team.

What We Offer:
💸 Starting pay: $35/hour minimum (Opportunity to earn $75+/hour with incentives)
🚚 Equipment: Company truck, fuel card, tools, uniforms & tablet
📚 Perks: Tuition reimbursement, ongoing training, & health insurance
🤝 Culture: Supportive, family-oriented environment with growth potential

What We’re Looking For:
✅ Valid Plumbing License (NH)
✅ Valid Driver’s License
✅ 4+ years of plumbing experience
✅ Strong customer service skills & positive attitude

If you’re looking for a company that values its employees, takes pride in quality workmanship, and treats customers like family, we’d love to hear from you!

Apply online at https://callmainline.com/careers/

This week we are celebrating Connor’s 1 year anniversary with Mainline Plumbing! Connor also graduated from his NH Gas L...
07/17/2026

This week we are celebrating Connor’s 1 year anniversary with Mainline Plumbing! Connor also graduated from his NH Gas Licensing class this week and will be applying for his full NH Gas Fitters License!

Thank you Connor for all that you do, and being a part of our great family!

A little technician team breakfast last week! So thankful for this amazing team we are building!
04/19/2026

A little technician team breakfast last week! So thankful for this amazing team we are building!

Address

71 Mammoth Road
Londonderry, NH
03053

Opening Hours

Monday 7:30am - 5pm
Tuesday 7:30am - 5pm
Wednesday 7:30am - 5pm
Thursday 7:30am - 5pm
Friday 7:30am - 5pm
Saturday 8am - 12pm

Telephone

+16038893505

Website

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