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Company Focus

To provide Hawaii with valuable mechanical contracting services while maintaining our core values of honesty, integrity, tradition, and professionalism.

Trained Professionals

Sen Plex is home to a large number of highly qualified individuals -- from factory trained technicians to certified professional engineers.

Moving Forward

The technology in this industry is constantly progressing. We are committed to our craft and attend annual trainings to stay up to date.

24/7 Support

Our dependable technicians are on call 24 hours a day to respond to your air conditioning or plumbing emergencies.

Some of our affiliations

Recent news

Appreciation for 65 years of outstanding loyalty, dedication and service to the GCA and Hawaii's constuction industry.

General Contractors Association of Hawaii



Awarded first place for best air conditioning repair.

Midweek 2011 Kauai's Best Edition



Consistently ranked as one of Hawaii's Top 250 Businesses.

Hawaii Business Magazine