Found JP O'Brien via Yelp. Dave responded to my inquiry about an EV charger install. We scheduled…read morean appointment for later in the week for a free in home estimate. He came on time and he quickly assessed my garage and basement. He saw my charger and indicated that it's a plug-in which may cause some problems. He recommended a hardwire solution. Luckily my EV charger supplier was able to swap out the charger free of charge. Dave and team came on the scheduled day and installed the charger and connected it to my electrical panel. He labeled everything for me and showed me how it worked. Great value and great service.

I had JP O'Brien replace my service riser after a fallen tree branch damaged it. They did a great…read morejob - very careful and conscientious. I never had to make a request more than once (to remind them), and the ladder they used even had those soft feet at the end so it didn't bang against the side of my house. I also didn't see any of the small mistakes that I find contractors often make (eg trampling something I asked them to avoid). Oh and their price was lower than others I had gotten estimates from.

I have never had an issue with Cote Electric who serviced our generator for years. I missed the…read moreannouncement that they had become part of Heritage Home Services. I called Cote wondering why hadn't gotten by annual service contract renewal. They explained the change and told me about the Heritage Advantage Membership plan which provides discounts on repairs and purchases and discounts on maintenance. We signed up and had our first annual maintenance check since the change. Our service tech, Pharaoh, gave us a heads up that he was en-route, explained what he was going to do, how much it would cost and how long he expected it to take. He was very pleasant, completed the work promptly and cleanly. No complaints with the change to Heritage and will continue to use them for service.

Had a service agreement with COTE. Went fine the first year. Then, they were purchased by Heritage…read more Next year, no one calls. No reminder. No one comes out. I call to make an appointment and am told the price increased by over 50% (from $249 in March 2025 to $375 for March 2026). Is there a point to a service agreement if you still have to make an appointment and the price can increase by over 50% in one year? The answer is...nope. No point at all. So, I'm off to find a new service company. Here's some text from their contract (emphasis is mine): "Why should I sign up when I can just call each year for maintenance? If you call each year we will be glad to accommodate you and come and perform the PM for your generator. However, by not signing a contract you risk the possibility of a rate increase every year whereas A PM CUSTOMER IS GUARANTEED THE RATE FOR THE DURATION OF THE PM AGREEMENT (except for continuous maintenance which may be subject to rate increase). Also, PM customers are in our database and WILL NOT NEED TO CALL for PM service. A PM customer will also receive priority service, specifically when winter rolls around and we receive an increase in service calls. A PM customer will be charged a service rate of $105.00 per hr for any repairs needed, a non PM customer is charged $140.00 per hr" Note that they never called. And they immediately raised the rate. Can they do that? Yes, technically, because elsewhere they say this: "Labor will be at a rate of 80% of base rate, which is currently $140/hour and is subject to change without notice." So, yeah...they basically lie about the benefit of a service agreement and their agreement is entirely contradictory. I'd recommend you stay away from these guys. EDIT: They called me and told me that they had called to make an appointment and told me the date they called. I checked my phone (which is the number they told me they called) and my phone has no record of any call from them on that day. My text has no record of any text on that day. They also said that they had to raise their prices but offered me a comp service. I told them no thank you, as I found someone willing to do the service for very close to their old price. Therefore, I stand by my rating and review.

We were in the market for a standby generator installation and contacted a small handful of…read morecompanies that serviced Southern NH. Generator Pro (Nashua) and NH Generator Installers (Concord) were the two companies that had the generator installation process down to a science as well as good reviews on other sites. We brought both companies out to give us quotes and the work came out to about the same price in both cases. We ended up choosing Generator Pro because (a) we didn't have to chase them down for the estimate after the visit, (b) the owner personally did the site visit for the estimate and seemed like a really good guy and (c) their communication skills were noticeably better than their competitor. Generator Pro ended up being great every step of the way to the finish line. The installation process is coordinated by Michelle, who is incredible at her job. When you undertake a complex job such as a generator installation, the person coordinating the work is just as important as the people actually performing the work. There are numerous steps along the way--choosing the right generator, getting it delivered and "set", gas hookup, electrical hookup, inspection, etc--and most of it has to happen in a certain order around the buyer's schedule. Some of the work needed to be outsourced to 3rd parties, such as gas work and electrical work. Generator Pro chose very friendly and competent workers for these tasks that we were happy to welcome into our home. When the generator process was complete, the owner (Doug) drove over to give us a personalized tutorial on usage. When you spend this amount of money on a purchase, you want to feel great about it every step of the way. Generator Pro gave us a level of service that never had us second guessing ourselves when we were writing large checks. We look forward to working with them going forward!

Generator Pro of Nashua New Hampshire is a very professional organization. First, appointments are…read moremade same day, then confirmed, and a reminder is sent day of appointment. Technicial resource arrived on time, executed work as promised-with excellent customer service skills. Explained the problem and answered questions with simple detail. I would strongly recommend Generator Pro for general maintenance or electrical issues on your home generator.

Jesse was great. Addressed the problem and followed through. I would highly recommend Warren…read moreElectric. Reasonably priced, efficient and courteous. Janice Draake

From the owner: Warren Electric is your one stop shop for all your electrical needs. From new construction, to…read moreremodeling your current home or business, we ensure the best quality installations and competitive rates so that our customers are always getting the results they want.

Finally, an electrician that doesn't play games. One person operation with full accountability and…read morea 'let's get it done' attitude. Good communication either through email, text or phone. I had a bucket list of items that I needed help with. I got ridiculous quotes from other electricians, $2200, $2600, $2500. Marty came by, looked at the job and had decided the best course of action what to just do Time and Materials at his hourly rate. It saved him from underestimating/overestimating and I could manage the costs fairly. Items completed: 1. Deck Post light caps: Caseta switch installation. Also diagnosing some incorrect connections (I had made incorrect connections previously). Wiring an incomplete LV wiring run to complete a 'missing' section of lights. 2. Under deck puck lights: 15 Amp box and 2nd Caseta switch installation powering puck lights 3. Troubleshooting Magnitude MLV Transformer (found bad caseta switch and worked with Lutron support to diagnose and get replacement) 4. Installed heat tape on troublesome (ice/snow) roof section I got everything done for roughly $600.00. (I bought all the materials in advance ~$100 worth and did some "brain dead" stuff myself (like running 14/2 UF wire through existing conduit). In any event, I was thrilled with T&M as was he. I believed I saved roughly $1500 by spending an hour or two myself and having Marty come in for the rest. I think I found my new 'go to' electrician in my area. Fair, honest and hard working.

This guy is a pro! Highly recommend! He's quality, good bang for the buck, and extremely time…read moreefficient. We were tight on cash and he took the time to set up the quote/ project in phases. I loved the long term plan* with EVERYTHING priced down to the penny, NO SURPRISES! Now how refreshing is that? It's been about a year since he finished "phase one" and we've gone all out ADHD on our home improvement projects, but when we finally make it back to finishing our smaller electrical projects, Marty's our man! *disclaimer: OBVIOUSLY prices will change as time passes! I will fully expect Marty to re-calculate the bottom line as we move through our future projects. THE POINT IS, you'll know upfront!

A wonderful overall experience. NH Gen. was not the least expensive but seemingly the most…read moreprofessional and reliable. When the building inspector came, he asked who installed my system. He said NHGen. was a great company that does fine work.

First class tech, Ben. A real asset to the company. Very…read moreknowledgeable and through. We have complete confidence in Ben and his company.

Bryan did several jobs over the span of two days: - Upgraded…read moremy service and. my previous system was a mess and insufficient for level 2 ev charger and future plans to get heat pumps installed. - installed an EV charger that required the fabrication of a wooden mounting panel outside my house. The finished product looks fantastic, and I couldn't be happier with it. - replaced an an old backup generator circuit and transfer switch to a much simpler and reliable 240v circuit with mechanical interlock and it worked a treat during two storms paired with a harbor freight generator. - installed and calibrated an led flood light 30 some odd feet off the ground - installed a google Nest outdoor camera with floodlight and a nest doorbell camera - He also found and replaced a crumbling old circuit to my water pump that I had no idea was arcing and could have caused a fire. I'm so grateful for his expertise and attention to detail, which undoubtedly saved my home from a potentially catastrophic situation. All this in just under two days and I was very happy with the price. I can't recommend Bryan enough. He's not only a skilled electrician, but he's also friendly, professional, and easy to work with. If you're looking for an electrician who can do light carpentry, Bryan Cerullo is your guy!

Bryan came into my house to replace a fuse box and was amazing. Nice to talk to, informative, great…read morecommunicator. A very genuine, friendly person that I'd trust watching after my house.

Read the reviews here on Yelp and decided to try J&J out we're new in Manchester. I was NOT…read moredisappointed! Todd, the owner/operator, came out on time, did great workupdating an old chandelier junction box/mount point and for a great price. Todd even brought out the vacuum to clean up after the job. Highly recommended!

Jon is responsible, flexible with scheduling, personable, thoroughly knowledgeable, and has great…read moresuggestions. Fully recommend without any concerns. Ray