Climate Design Systems, LLC

It’s boiler season here! We just completed this Rinnai boiler for a great customer of ours in Kingston, NH. We are your preferred Rinnai specialists in the Northern MA/Southern NH area. Call NOW for all of your plumbing and heating needs this season!

Why wait for your HVAC system to break down? A routine maintenance plan helps you stay ahead of costly repairs while keeping your system running efficiently. ✔ Priority 24-hour service ✔ Longer equipment life ✔ Fewer unexpected breakdowns ✔ Improved energy efficiency ✔ 20–30% off HVAC & plumbing repairs Plans start at just $17/month.

Just completed this Ruud Oil Fired Furnace replacement in Groveland, Massachusetts. All of our oil heating systems include a 5 year maintenance package and 5 year labor warranty.

Call NOW for your oil heating needs!

Before and after of this oil-to-gas conversion for a customer of ours in Methuen. Outstanding job from our installation team!

Call NOW if you are ready to make the switch!

We just completed this LG heat pump installation in North Andover, Massachusetts. We also fabricated and installed a new duct distribution system. This client earned a Mass Save rebate of $2,500.00! Call NOW and take advantage of the savings!

We just completed this Mitsubishi Hyper Heat Ductless Installation in Hudson, New Hampshire. We are your preferred Mitsubishi Diamond Dealer Contractor. Call NOW for your mini split heat pump installation!

We just completed this Rinnai combination heat-and-hot-water boiler in Tewksbury, Massachusetts. We are your preferred Rinnai Pro Dealers for all Rinnai applications! All Rinnai installs are backed by a 5-year labor warranty and 5 5-year maintenance program. Call Now for all of your plumbing and heating needs this season!

Happy New Year! As we enter 2026, don't bring your old, dysfunctional heating system with you! Contact our team today for a new heating system or heating service repairs.

#2026

Check out these recent projects we completed!

Merry Christmas from Climate Design Systems!

We're so happy you had a pleasant experience with us, James!

If you recently had a project completed by our team, please leave us a review!

Are you in the market for heat pump mini splits, but hate the look of traditional wall mounted heads? We have a solution for you with this Mitsubishi EZ-FIT package we just completed in North Andover, Massachusetts. These 1 way ceiling cassettes are designed with that in mind.

Call NOW for your next heat pump project!