About Us

Electrical contracting services in Southern, NH

Southern NH’s, Preferred Electricians

We Spark Electrical Heating and Cooling LLC with an honest vision to help property owners get the service they deserve.

For far too long, property owners have had to deal with unfair pricing from contractors. However, our affordable services won’t shock your wallet! With over 10+ years of experience, our company has continued to grow in both knowledge and well trained staff.
From emergency residential electrical services to commercial electrical contracting, Spark Electrical Heating and Cooling LLC, can take care of it all. We are veteran owned, operated and we are proud of it!

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What makes Spark so different

Highest Rated Electrical Service Company in New Hampshire

A community driven Electrical Service company
serving our neighbors in beautiful Southern New Hampshire.

Spark is built on a foundation of strong leadership by example. Our founding members are always ready and willing to jump in the trenches and lead our team from the front. It’s that dedication to duty that reflects such strong values onto our team. We focus on being the best, the most professional, and harbor a team focused on nothing short of complete excellence.

Our company is different, we strive to set ourselves apart from other “contractors.”

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Our Mission Is Simple

To provide you with the service that you deserve!

Our values are expressed by actions, we apply them in all that we do

We always place the mission first. Our client satisfaction is our MISSION, & the most important thing we need to accomplish.

We always do the right thing, first and foremost.


We are truthful in all that we do, always up front and honest in all that we do.


We respect your home, we respect your time, we respect your opinion, and we will always show you the respect you deserve, and we expect the same in return


It is our duty to employ the most qualified staff and equip our team with the tools and training required to meet our standards of workmanship.

Bringing Spark to your Life

We specialize in PEOPLE first, THEN we focus on electrical solutions.

Our company is different, we strive to set ourselves apart from other “contractors.

The instant you decide to call our office it becomes apparent that you called the right company. Our friendly customer service representatives are trained to listen and understand every need our client has, and guide them through the entire installation or repair process.

You can expect a fully stocked “warehouse” on wheels to safely arrive at your home or business, driven by one of our highly qualified and trained electrical technicians with a clean motor vehicle history and safe driving record. We would not send a driver into your neighborhood that we would not want in our neighborhood.

Our friendly techs are thoroughly vetted and background checked through multiple systems; they are drug tested, pre-trained, nationally trained, and attend continuous weekly training sessions in technical support and client service. We would not send a technician to your home we would not trust in ours.

Technicians are trained to educate clients on our process, and on the systems they will be working on; they are taught to provide clients with multiple options and allow YOU to choose the way you wish to proceed with the installation or repair.

The Straight Forward Pricing System allows our team to provide accurate and upfront pricing. This allows our technicians to take an unlimited amount of time with our clients, and the cost is guaranteed. Homeowners and business owners will understand the exact cost of their project up-front & prior to beginning work. You will never incur hidden fees or surprise charges at the end.

Service After the Sale

 Remember the friendly customer service representative you
spoke with when you booked your call? She will give you a call when we are finished!
We check up to make sure everything was done exactly the way you wanted it, or we
send a technician back right away! We follow that up with the best warranties offered by
any service company anywhere.

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About Us

A client service company specialized in Full Service Electrical Contracting. Spark is staffed with the most competent and experienced start to finish hot-shot electrical crew in Southern New Hampshire. We have the knowledge and experience to take on any project from underground trenching to overhead lines and lighting. We offer full service repair & replacement, as well as design & installation.

We offer in house trenching services and underground power distribution solutions with our own equipment and operators, including multiple hydraulic trenchers and excavation, whether it’s a new service to a building or simply running a circuit to your shed, we have done it!

We can help change out that 20 foot high chandelier no one wants to build a staging to reach! We have specialized lift equipment that assembles in minutes and fits through your front door, let our team make this easy!

We offer Aerial Service with a 54’ Boom Truck capable of moving and placing heavy materials with a built in “jib” for hoisting. Whether its emergency or placing new light poles to brighten up your busy parking lot, we have the ability to get it done on time, and on budget.

A small crew that packs a big punch!

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Why Homeowners Choose Us

There’s a reason why customers from all of Londonderry, Southern New Hampshire, Rockingham County, and Surrounding Areas keep coming back to us for all of their electricians-related needs. At Spark Electrician Services we offer:

10+ Years of experience
Warranty on all work
Friendly, Professional Staff
Veteran Owned & Operated
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Who We Are

Spark Electrical Heating and Cooling LLC was founded in 2015 by Justin Smith, with the addition of long time co-worker and friend Keith St. Laurent.

From our first day in business our mantra has always been quality over quantity. We take the utmost care in every project and work to complete each job efficiently, safely, and correctly. We will always be honest with you about what your options are and review all projects with you to be sure everything is completed to your complete satisfaction.

Who We Are

In 2015, Justin left his position as a controls foreman and became the Electrical Technology Program Instructor at Pinkerton Academy in Derry, the same program he grew up loving. Justin also founded Spark Electrician Services in 2015. The company was intended to be a part time job to supplement his teaching income so his wife, Jaime after surviving a hard year long battle with ovarian cancer, could be a stay-at-home mom. After selling his 401K savings for just over two thousand dollars to buy tools, and financing a used Uhaul van, Justin would work
afternoons, weekends, and school vacation weeks, as well as work full time through the summer vacation for the next 2 years straight.

Justin and Keith worked together on several side projects, all while still working full-time. The “side business” got busier and busier, so Justin left his job first in 2017 to pursue a career as a self-employed Master Electrician, taking with him his favorite apprentice and long time right-hand man Alan Rendo. Keith shortly followed, leaving his full time position at the control company and jumping into the business full time in 2018.

After working together day and night, the small company generated enough money to purchase a second work van, and rent a dirt-floor shop in the basement of a small office building in Derry. Today Spark has two brand new offices in Derry and Londonderry with 17-20 Employees and 12+ work trucks servicing 1700+ happy customers in Southern NH. Alan is now the lead service technician and preparing for a service manager role at Spark. Justin and Keith get to work on their favorite projects, and love to spend time with their crew teaching and molding tradesmen.

We look forward to serving you

Our Convenient Locations

With over 10 years of experience, Spark Electrical Heating and Cooling LLC is veteran-owned and operated. We are primarily located in Londonderry, Derry, Auburn, Manchester, Chester, Windham, Salem, Bedford, Raymond, Candia, Hampstead, Deerfield, Hooksett, Hudson, Merrimack, Amherst, Hollis, Bow, Goffstown, Exeter, Stratham, Epping, Kingston. Customer service and honesty are the two most important aspects of our business and your satisfaction is guaranteed. Please contact us so we can provide the best solution to all your electrical heating and cooling issues.

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Our Guarantee

The Spark Promise

Spark Electrical Heating and Cooling LLC, is the only electric service that takes utmost care in every project and works to complete each job efficiently, safely, and correctly. We will always be honest with you about what your options are and review all projects with you to be sure everything is completed to your complete satisfaction.  All work is accompanied by warranty on labor, materials, and/or equipment. We promise to deliver peace of mind and support throughout the process.

We promise you genuine service and true professionalism:


What Our Clients Say

Spark was recommended to us by the owners of Princess Jewelers in Derry. Adam came to our home yesterday. He was knowledgeable, professional, friendly, and very informative. He spent 5+ hours taking care of several projects, and gave us all the options (including the money-saving ones) we needed to make intelligent decisions. We're very happy with the quality of Adam's work and we're looking forward to his return next week when he'll take care of the last 3 tasks on our list. Spark and Adam are very highly recommended indeed.

Arthur Marino

Evan came out today and repaired both doorbells for our duplex. One of them was very complicated with short wires and he took the time to think outside the box and come up with a solution to make it work so we didn’t have to have holes and repairs done after. He was professional, friendly, patient, and a pleasure to work with. Bonus: he liked my dogs! I will definitely be using Spark Electrician in the future and will be recommending them as well. Thank you Evan!!

Oceanne Kerebel

Adam did excellent work both times he was at our property. He replaced a fan and a chandelier. Both jobs required a little bit of extra work, and expertise, but Adam didn't even flinch. He executed everything with a smile. Being a new guy at the company, he certainly has customer service on lock down! Heidi at front desk was personable and kept me up to date with appointments and times. Will use again and again. Thanks Adam and Spark!

Kris Gibson

The Spark team of Adam and Alex showed up right on time to repair a light post for me. They were both knowledgeable, thorough and got the job and the inspection done quickly. They were very careful not to track mud into the house (it was an outside job in the snow) and could not have been more pleasant to have at my home. I thoroughly recommend Adam and Alex and Spark.

Nancy Demers
    With Spark Electrical Heating and Cooling LLC

    We'll Help You Keep Your Home Running

    At Spark Electrical Heating and Cooling LLC, we are here for every electrical concern you need to be fixed. Be it custom lighting, home-wiring, smart-home, security, home-inspection-energy-audits, fire system installation, or more. We deliver quality services and professional experience every single time.