Nelson Mechanical Design, Inc

Nelson Mechanical Design, Inc NMD is Martha’s Vineyard “green” mechanical contractor, designing and installing just about anything to do with heating, cooling, and water.

Nelson Mechanical Design, Inc. designs and installs renewable and conventional heating, cooling, ventilation, plumbing, and water treatment systems. We service these systems and provide routine and preventative maintenance. Our mission is to provide a global level of expertise and knowledge - being the best on the Vineyard.

Summer comfort is more than just temperature. It’s consistent airflow, efficient cooling, and a home that feels comforta...
06/25/2026

Summer comfort is more than just temperature.

It’s consistent airflow, efficient cooling, and a home that feels comfortable and easy to live in every day.

Happy International Women in Engineering Day. Today, we celebrate the women driving innovation in engineering, HVAC, and...
06/23/2026

Happy International Women in Engineering Day.

Today, we celebrate the women driving innovation in engineering, HVAC, and sustainable energy — shaping the future with leadership, expertise, and impact.

Learn more about INWED: https://bit.ly/3vZXPzH

Today, we recognize the skilled HVAC and plumbing technicians who keep homes and businesses comfortable year-round. Than...
06/22/2026

Today, we recognize the skilled HVAC and plumbing technicians who keep homes and businesses comfortable year-round. Thank you for your dedication, precision, and hard work behind the scenes.

Happy Father’s Day to all fathers and father figures. Thank you for your guidance, support, and the care you bring every...
06/21/2026

Happy Father’s Day to all fathers and father figures. Thank you for your guidance, support, and the care you bring every day.

06/20/2026

MYTH OR FACT?

Closing vents in unused rooms might seem like a smart way to save energy… but it can actually disrupt your HVAC system’s airflow and reduce efficiency.

Your system works best with balanced airflow and regular maintenance.

A few small habits can make a big difference in your comfort, energy use, and system performance.

Contact us today to get clean air in your house: https://nmdgreen.com/

Nothing speaks louder than happy clients. We´re grateful for every review, every kind word, and every homeowner who trus...
06/19/2026

Nothing speaks louder than happy clients. We´re grateful for every review, every kind word, and every homeowner who trusts us to let the job done right.

Big thanks to Gabriel for this awesome review! We truly appreciate the trust, and so glad we could deliver a great experience.

If some rooms feel uneven, airflow is weaker than usual, or your HVAC system runs longer than it should, it may be time ...
06/18/2026

If some rooms feel uneven, airflow is weaker than usual, or your HVAC system runs longer than it should, it may be time for a system check.

Home comfort shouldn’t feel like a guessing game.

Contact us today to get help: https://nmdgreen.com/

The little things add up. A clean air filter, clear vents, and consistent thermostat settings help your HVAC system run ...
06/16/2026

The little things add up.

A clean air filter, clear vents, and consistent thermostat settings help your HVAC system run efficiently and maintain steady indoor comfort all season long.

Contact us today to get started: https://nmdgreen.com/

As temperatures rise, HVAC demand increases. Summer is for relaxing — not dealing with AC repairs. The best comfort is c...
06/14/2026

As temperatures rise, HVAC demand increases.

Summer is for relaxing — not dealing with AC repairs. The best comfort is consistent, reliable cooling you don’t have to think about.

Contact us today to get started: https://nmdgreen.com/

06/13/2026

Buy groceries, change the oil, and schedule plumbing maintenance

Some tasks keep your day running. Others keep your home running.

Adding regular plumbing maintenance to your to-do list can help prevent leaks, costly repairs, and surprises later on.

Don’t wait for a plumbing issue to remind you. Call us to get the help you need: (508) 696-3120

Address

Vineyard Haven, MA
02539

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

(508) 696-3120

Website

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