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.

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!

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

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

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.

Prompt service. Service gentleman was very professional, explained everything well. Fair price.read more

We had a small piece of pvc piping that needed to be replaced (it was leaking). The technician…read morecalled to let us know when he was on his way, had to run out to get supplies, and got the job done quickly and cleanly. Nice guy, he did a great job and answered all of our questions. My only issue (if that's what you even want to call it) is that I thought it was pricey for such a small repair. That being said, it wasn't something we were going to do ourselves, so for us, it was worth the $$$. I feel very good about recommending this company - he showed up on time and did a great job.

Prompt friendly workers. Explained plan clearly, cleaned up after themselves and performed work…read morequickly.

This review is from quote to finished and completed work on mini-split heat pump (HVAC). Overall…read morewas great and would recommend! Quoting process was very thorough, and we went over almost all options possible. Pricing was not the cheapest but also not the most expensive based on a few quotes that we got. So from my experience you get great value for the service. Scheduling is mostly where my experience was missing that 5th star. Change in scheduling happened about 3 times and so you'll have to be a little flexible because during material and labor shortages due to covid, I'm assuming this where the challenges are. Installation was mostly all clean and went smoothly without any unforeseen issues. This was in about 4 parts: inside unit and compressor one day, outside and inside and basement lines one day, electrician assessment quick look one day, then actual electrician and final turning switch on. There was a very minor issue that we ran into a couple of weeks later but they were able to resolve it within 24 hours at no extra cost. (Covered under warranty)