Climate Design Systems, LLC

Climate Design Systems, LLC Climate Design Systems, LLC is a 75 year old family owned & operated HVAC company offering Heating, Air Conditioning & Plumbing services.

Climate Design Systems, LLC was originally founded in 1946 under the name of Haverhill Sheet Metal, a full-service heating, air conditioning and indoor air quality contractor. We’re committed to do the job -- every job -- the right way. STAFF:
All of Climate Design Systems' engineers and technicians are fully certified and trained. We maintain a fleet of 50 plus digitally-dispatched service vehicl

es equipped with the parts needed for a majority of repairs. Our friendly staff are background checked, pleasant, and keep up with the latest in heating and air conditioning technology, rebates, discounts and financing options. SERVICE:
We live in a wonderful place, but New England's weather can be tough. We know how to keep your heating and cooling system operating at peak efficiency in this harsh climate. We offer a wide range of service plans to meet your needs. Qualified technicians are on-call for emergencies 24-hours-a-day, 7-days-a-week. INSTALLATIONS:
After your home is measured, our engineers perform calculations so that we can assemble the most efficient system (not too big or too small). Unlike many contractors who use thin, one-size-fits-all ductwork, Climate Design Systems operates our own sheet metal shop to create the ductwork that's sized just right for your home or business. LOCALLY MANAGED AND OPERATED:
Climate Design Systems began as a local company in the Merrimack Valley area more than 70 years ago and continues to remain locally owned, managed, and operated by some of the most experienced HVAC specialists & Staff in Southern New Hampshire and Greater Boston areas, today. We proudly remain a recognized leader in heating, ventilation, air conditioning and mechanical contracting servicing both New Hampshire and Massachusetts.

Cheers to the long weekend — honoring hard work, cool comforts, and the team that keeps homes running. Happy Labor Day! ...
09/05/2026

Cheers to the long weekend — honoring hard work, cool comforts, and the team that keeps homes running. Happy Labor Day! 🇺🇸

Big project underway. Removing all of the old equipment to get the area clear and prepped for the new install!
09/04/2026

Big project underway. Removing all of the old equipment to get the area clear and prepped for the new install!

This one was a BIG lift. 🏗️We’re excited to show you the full crane job soon! And of course, huge credit to our team for...
09/03/2026

This one was a BIG lift. 🏗️

We’re excited to show you the full crane job soon!

And of course, huge credit to our team for getting this unit up, replaced, and fully dialed in for our customer. 💪

09/03/2026

You’re going to want to see this one 👀

A BIG new construction project. A lot of moving parts. And one seriously impressive finished product.

Press play 🔥

Hard at work, even in the tightest spaces 🔧💪Our team is getting it done from the attic to the mechanical room — quality ...
09/02/2026

Hard at work, even in the tightest spaces 🔧💪

Our team is getting it done from the attic to the mechanical room — quality HVAC work, attention to detail, and no shortcuts. The job isn’t done until it’s done right🔥

09/01/2026

We just can't help ourselves. Here for a full replacement but needed to maintenance another unit that we could tell wasn't running 100%!

08/31/2026

Meet Our Team 👏

Another week is ahead, and our commercial service team is ready to get to work!With winter right around the corner, now ...
08/31/2026

Another week is ahead, and our commercial service team is ready to get to work!

With winter right around the corner, now is the time for businesses and facility managers to make sure their heating systems are ready for the colder months ahead ❄️🔥

From routine maintenance to repairs, replacements, and keeping your building comfortable, we’re here to keep your business running.

Don’t wait for the first cold day. Get ahead of winter.
https://climatedesignsystems.com/heating-services/

💪 Proud of our team that never settles for less. No cutting corners here—just craftsmanship and commitment. A big shouto...
08/29/2026

💪 Proud of our team that never settles for less. No cutting corners here—just craftsmanship and commitment. A big shoutout to everyone in the crew for making every project exceptional! 🌟

Heating, air conditioning, and plumbing repair maintenance, and installation in Methuen Massachusetts & Manchester New Hampshire

08/28/2026

Emergencies don’t wait. And neither do we!

Check out this time lapse of a Rheem power-vented water heater replacement. The client called us that morning with no hot water after their tank failed. Within hours, our plumber was on-site, replacing the failed tank and getting everything back up and running the same day.

When you need us, we’re ready to respond. 🔧

Address

15 Aegean Drive, Unit 3
Methuen, MA
01844

Telephone

+19786898312

Website

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