Licensed & Insured · Est. 2022
Serving New Hampshire from the Lakes Region south, C&D Mechanical LLC is your trusted partner in residential and light commercial HVAC: expert sales, service, installation, and maintenance.
Free estimates. Straight answers. No sales pitch.
Fully licensed & insured, with top-quality work on every installation, service, and maintenance call.
10+ years of experience. Family-owned and operated, born and raised in New Hampshire.
Veterans: thank you. Active military and veterans get exclusive discounts. Just mention it during your estimate.
C&D Mechanical LLC is a family-owned and operated business proudly serving New Hampshire from the Lakes Region south. Born and raised here, we're committed to delivering honest, high-quality HVAC and plumbing services to our neighbors.
With over 10 years of experience, we specialize in residential and light commercial systems, keeping homes and businesses comfortable, efficient, and safe year-round.
We take pride in our personalized service, expert craftsmanship, and reliable solutions. Whether you need a repair, seasonal maintenance, or a full system installation, our licensed and insured team is ready to help.
A full range of HVAC and plumbing services for homes and light commercial buildings.
Single-zone systems for one stubborn room and multi-zone setups that give you room-by-room control of the whole house. We use reliable, industry-trusted brands like Mitsubishi and Daikin to ensure lasting performance and comfort.
Variable refrigerant flow is a small field in New England, and it is one we have deliberately built depth in: design, installation, commissioning, and ongoing service. If you have a VRF system nobody local wants to touch, or you are weighing one for a new building, this is work we take on rather than refer out.
Installation and service of rooftop units for light commercial spaces: proper sizing, crane lift, start-up, and commissioning.
We survey what you actually have on site, then write a maintenance schedule around each manufacturer's published requirements rather than a generic checklist. From there it runs on its own: we show up when the work is due, do it, and bill for it, so nothing depends on somebody remembering. The same coverage handles service calls when a unit is running but not running right.
Ducted forced hot air and central air conditioning for homes and light commercial buildings, whether oil, gas, electric, or dual fuel. High-efficiency furnaces and air handlers, clean professional installs, optional zoning and smart thermostats.
High-efficiency boilers for gas, oil, or electric systems, for baseboard or radiant heat, new installations and replacements. We work with trusted brands like Viessmann, Weil-McLain, Burnham, and Lochinvar for dependable, long-lasting performance.
Plumbing installation for residential and light commercial projects: water heaters, fixtures, and whole-home water filtration. Clean, code-compliant work with high-quality materials, done right the first time.
Our experienced team is ready to tackle any job to keep your systems running smoothly. Not sure if we cover it? Call and ask.
Ask us about your job →Lines we install and service regularly. We are an independent contractor rather than a single-brand dealer, so the recommendation you get is the equipment that suits the building, not the one we are obliged to sell.
All manufacturer names are trademarks of their respective owners, used here to describe the equipment we work on.
Tap any photo to open it full size. You can zoom in to look at the details.
Follow us on Facebook to see our latest projects.
Tell us what the system is doing and roughly where you are, and we will tell you what it needs. New installs, replacements, and the repairs nobody else wants to diagnose.
Every one of these is a real review from a real job. Read the rest, or add your own, on our Google profile.
“Derek and Chris are awesome!! They came out on a Saturday morning on the coldest day this year and got me set up with 2 Mitsubishi mini splits. Garage and upstairs are nice and warm now.”
“Professional, honest, and quality craftsmanship. Besides making the necessary repairs in record time, I will be using C&D Mechanical on future projects as we replace our outdated HVAC units. If you're looking for a local company that will treat you with respect, I highly recommend giving them a call.”
“We highly recommend C&D Mechanical. We are very pleased with the quality work that they did for us. They answered any questions and concerns we had before the job began. Work was performed in a very timely manner at a very fair price. They left a clean work site and followed up after the work was done.”
“Got a new mini-split installed by C&D Mechanical. Great group of guys and very professional. Answered all of our questions and gave us a discount for being a veteran. Would definitely recommend them!!!”
“I recently hired Chris and Derek for some plumbing issues in my home, and I couldn't be happier with the service! From the initial call to the completion of the job, they were professional, prompt, and extremely knowledgeable. They arrived on time, assessed the situation quickly, and provided a clear explanation of the repairs needed.”
“My experience with C&D Mechanical was extremely positive. They efficiently addressed an issue with our external faucet, performing the necessary pipework and replacement. Additionally, they conducted a comprehensive inspection of our furnace and air conditioning units, providing valuable recommendations for future maintenance.”
Read more reviews on Google.
We answer the same questions every winter, so we wrote them down. Straight answers about heating, cooling, and water, with no sales pitch attached.
What genuinely needs somebody out tonight, what can wait until morning, and what you should handle yourself before calling anyone.
Derek Mills ·
If one room has never been comfortable, the equipment is probably not the problem. What goes wrong in older duct systems and what is worth fixing.
Chris Wheeler ·
Leaving oil behind is one of the most common projects we do. The realistic sequence, the decisions along the way, and what to do about the old tank.
Chris Wheeler ·
Free estimates on new equipment and replacements, and a straight diagnosis when something has stopped working the way it should.
Fastest during working hours, and the right move if you have no heat, no hot water, or water where it should not be.
(603) 724-5600Tap to call(603) 340-3902Tap to callAny time of day. Tell us what is going on and we will come back to you with a straight answer, not a sales call.
