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.

About 8 months ago I had another company come and replace a ring on a toilet, because I thought it…read morewas causing a stain on the ceiling beneath it. They had to come back because they didn't put the back piece of the toilet on correctly, it was rocking.They had to come back a third time because now there was a constant smell. They caulked around the toilet. For the next 7 months the smell would come back, sometimes a little, sometimes unbearable. BUT then I started getting little sewer flies. I was not calling them. I found Gardner Johnson on Yelp. It was a blessing. He listened. He looked. He fixed. The previous company had not set the ring correctly, and there was sewage literally sitting under my toilet. Anything you need plumbing wise, you would be wise to pick Johnson Plumbing. He also sent his assistant to help with another issue with my septic system. The assistant saved me at least a thousand dollars from a previous professional telling me what I needed to do. He showed me pictures proving it did not need to be done. They both were so professional, so great and they guarantee their work. But I am sure you will never .ever . have them come back for the same reason.

Fire your customer service department they wasted my time and they then told me that they would not…read morebe able to help me after I called them back once I had an appointment See below

They make techs push additional services, club membership while being the most expensive plumbing &…read moreheating company I've ever used. They're no longer a small local business but a big corporation that services their needs first. The straw that broke the camels back is when the tech put old, dirty filters in the furnace. He saw a box that had ones I had replaced in it and assumed they were new and installed them. He couldn't see they were dirty!

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!

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 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

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

4 adults and one infant living in a house with temp heat and hot water. We have been in this…read moresituation for close to 7 days. Can't shower or wash clothes.Cant wait to see electric bill They claim that they can't get part to repair this is I pay 180 $ a year to get preferred service. I just find this wait unacceptable what happened to overnite or next day service? Tell me where the part is and I'll go pick it up!!! I am not a happy customer

A friend of mine in Nashua New Hampshire wanted a whole house water filter put in, a toilet fixed…read moreand a leaky faucet fixed. I offered to research on Yelp to find a good plumber. The first call I made was to them. The customer service was off the charts amazing! Along with the follow through and expert service! They left everything pristine clean after and the prices were very reasonable. This company puts customers first! You can thank me later after you use them!

Excellent; ready and willing to get me on the calendar. I was able to get HVAC fixed prior to…read moreappointment, so I did not need their service.

Joe got me a reasonable quote quickly. Came on a Saturday. That was appreciated since this job was…read morebecoming in blocker in the overall project. Joe installed a long gas line to supply a grill and a sunroom's gas fireplace. There were no issues and the work is complete.

Great communication skills, made an appointment in a timely manner, and accomplish the task he was…read morehired to do at the price he quoted.

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.

Uri was on time, and gave me 4 different options to repair my running toilet which I appreciated…read more Then same day was able to obtain the materials and make the repair.

The service was excellent; the problem was resolved within an hour. The pricing was also…read morereasonable, and they provided great advice!