I had an issue with our sediment filter. Located hanging from the ceiling. Difficult for me to…read moreclimb a ladder and get it opened to change the cartridge. John came and got it moved down to 5 feet above the ground. Took less than an hour with all the proper shutoffs. Extremely reasonable price also. Highly recommend them!!

We had a small issue John Came to the store and helped us out. He was very knowledgeable and…read moreunderstanding. As we explained the issue, he right away knew what the problem was and resolved it quickly and in timely manner. I would highly recommend if you needed any plumbing work done call Mainline. They were the best value for the money we spent and was worth having them to help us out.

We had a very hard project that needed to be completed. Everyone from staff to owner went over and…read moreabove expectations to get the job done.

Rougly June of 2025 the came out to fix 2 6 - 7 inch pipes for my well to the well tank. $600.00…read moreand it still leaked then cane back and fixed 1 of the pipes and left. It still leaked called and said he'd come back that day and never showed up.

They gave a quick and reasonable quote, was prompt with their scheduling. Showed up on time and did…read morean excellent job. I converted from an oil boiler to a gas combi unit. They did not pressure me in any way just gave me all the options and answered any questions I had. The owner did the on site estimate and even showed up on day 1 to see if we had any questions. Steve and Shane handled the install and were prompt, responsible and knowledgeable. Highly recommend their service.

I have been using Southern NH for years. They are always so reliable and honest. I made the mistake…read moreof going with someone else when I was in a bind a year ago. I have regretted it every day. Southern NH came through for us and they were so accommodating. Great value and so friendly!

Work was done efficiently. Costed $650 for 20 minutes work and $75 in parts ( I looked it up )…read more This included the time to look at the job , quote it , do the work and pack the truck. It worked out to $800 an hour labor which was really a DIY job if you had the tools ( I didn't ) You get charged $99 for the quote if you don't have them do the work. I'm not sure if all plumbers have become this expensive but I'm sure willing to try someone else next time

Rating: 1/5 Stars Title: Aggressive Upselling and Misleading…read moreTechnical Advice - Beware I recently had a technician (Matt M) from Paul The Plumber come out for a simple warranty repair on my furnace's igniter. While the warranty repair itself was completed, the rest of the visit was a masterclass in aggressive and dishonest upselling. The technician presented me with estimates totaling nearly $1,800 for "Peace of Mind" replacements that were completely unnecessary. The Main Issue: Misleading Code Requirements Most concerning was the technician's attempt to charge me $639 to replace my existing flexible gas lines with hard piping. He claimed that "gas code requires" refitting the water heater to 1/2" iron piping and that my current setup could cause pressure issues if other appliances were running. This is factually incorrect. Standard flexible gas connectors are rated for significantly higher BTU loads than a residential water heater draws (often up to 180,000 BTU, while a tank heater pulls a fraction of that). Using code compliance as a scare tactic to sell a $600+ pipe refit is unethical. Unnecessary Upsells The upsells didn't stop there: Thermostat: Even though he tested my Google Nest thermostat and admitted it was working properly, he tried to sell me a $608 Ecobee thermostat replacement, claiming Nests have a "history of problems." There was no reason to replace a functioning smart thermostat. Expansion Tank: He also proposed a $550 expansion tank installation to "prevent the water heater from bursting," another high-priced add-on for a system that was functioning fine. If you call Paul The Plumber, be prepared to double-check everything they say. Turning a standard warranty visit into a $1,700 sales pitch based on bad technical information is not "Service with a Smile," it's taking advantage of the customer. Pros: The igniter (warranty work) was fixed. Cons: Dishonest claims about gas code requirements. Aggressive attempts to replace working equipment (Nest thermostat). Exorbitant pricing for simple upgrades.

We had water in our basement and trouble with the toilets so figured it was a clog. Called on a…read moreSaturday morning just before a major snow storm, so very anxious to get it fixed and not heard back from a couple phone calls to another number. So glad they were the ones to get back in touch! Kaiden was on it immediately, found the clog, took care of it and we were back in business in less than an hour. We could not recommend this business highly enough!

Had to have the pump in my basement bathroom pump-up tank replaced. While the job was eventually…read moredone, there were a number of problems. First, the tech misquoted the pricing (three times) on his way in - by several hundred dollars. I found this out being handed the bill on his way out the door - 'I made a mistake'. When taking the tank apart, broke most of the PVC connecting to the septic tank. It was all replaced, so I guess I got some of my money's worth, but they were unable, for some reason, to remove one of the tank cover bolts, so they just spun the cover around on that one bolt. We won't know until warm weather if they were successful in properly sealing everything back down. The entire area around the tank (my utility room) ended up literally soaked in septic tank water. The removed pump was deposited in the middle of the floor. (At one point, they wanted to walk a bucket of vaccumed up septic water through the house to dump it in my upstairs toilet.) There was no care taken to protect carpet in the process of removing any of the old (septic) materials out of the basement. There was no effort made to dry or disinfect the utility room at all. The second reason for the call was a clogged sink drain upstairs. We provided access to the cleanout downstairs. When the pipe was finally snaked, the resulting black clog coming out of the cleanout missed a waiting trashbag, and was deposited on the carpet, splattered in a living area. There was no protection used on the floor at all. The tech said, 'I sprayed cleaner on it, it will dry with no stain'. It took me personally two hours plus of cleanup work to remove the mess they left. I also spent another hour or so disinfecting the utility room. With their own photographs for evidence, I still had to make a number of calls to get the attention of their office manager, who finally agreed to a small refund to cover my time. This ended up as a bill of around $2000. Although the work was 'performed', apparently the concept of customer service has been abandoned in our current culture. I couldn't help feeling like they thought I should have had no complaints. I had a bunch, and frankly the $250 compensation off the final bill was still insulting. Overall, a horrific experience - I would not recommend this company to anyone, for anything, thanks.

Johnson Plumbing replaced two water heaters in my rental property. Everything went well. Their…read morecommunication with my tenants was very good. The equipment came with a 10-year manufacturer's warrantee.

Gardner and team did a great job replacing a water heater for us on short notice. Was able to get…read moreus hot water again on one days notice. They also replaced a shower faucet at the same time. Can't say enough good things about Johnson Plumbing. Quoted price was below the 3 others and job was done in about 3 hours. Super happy.

I hired this professional to do a small plumbing project by seeing 20yrs of experience in plumbing…read morein Yelp, but the thing came opposite, this professional did unfinished job. I paid him on same day, as he ensure that he would come next day to complete the unfinished job but he didn't show up. When I call him next day, he said he would charge extra $$$ to do his unfinished job. Highly Not recommended!

From the owner: I do plumbing and electrical installation and repairs call or text 603-494-0607read more