DML & S Air Conditioning & Heating Saint James NY

Business Overview

DML & S Air Conditioning & Heating Saint James NY is a family owned HVAC, electrical, and plumbing company serving Long Island homes and small businesses. Founded by their father in 1983, the team now includes the owner and his brother. The company handles residential and commercial work and offers 24/7 emergency service for urgent heating, cooling, electrical, or plumbing problems.

Key Services

Work is done by licensed technicians with experience on older Long Island homes and newer builds. Main services include:

• HVAC installation or replacement — central systems, boilers, and ductless (Mitsubishi Electric Diamond Contractor)
• HVAC system repair and maintenance — seasonal tune-ups and quick repairs
• Air quality and heating solutions for humid summers and cold winters
• Electric inspection and electrical repairs for homes and small shops
• Plumbing inspection, plumbing repair, and water pipe repair

Areas Served

Technicians travel across Nassau and Suffolk counties. Typical service towns include Smithtown, East Setauket, Brentwood, Coram, Commack, Central Islip, Centereach, Shirley, Holbrook, Medford, Hauppauge, Holtsville, Selden, East Northport, Lake Ronkonkoma, Ronkonkoma, Kings Park, Farmingville, Manorville, Rocky Point, Nesconset, Stony Brook, Saint James, Ridge, Terryville, Mount Sinai, Miller Place, Lake Grove, Middle Island, Fort Salonga, Port Jefferson, and many nearby communities.

Company History

The business began in 1983 when their father started helping neighbors with heating and cooling. Over decades the company grew slowly and kept a local focus. Many customers have returned year after year. The shop holds industry licenses and maintains a close relationship with suppliers like Mitsubishi Electric for ductless systems.

Leadership

The current owner has more than 20 years of industry experience and runs the company with his brother. Both grew up in the trade and stayed local. They visit community places such as Stony Brook University and Port Jefferson, and take pride in being reachable by phone when customers need help.

Specialties & Highlights

• Licensed Mitsubishi Electric Diamond Contractor for ductless AC and heat pump systems.
• 24/7 emergency response for heating, cooling, plumbing, and electrical issues.
• Work on aging homes common on eastern Long Island and on modern residential and commercial properties.
• Family run with long-term customers and straightforward, clear explanations of work.

Why Locals Choose DML & S Air Conditioning & Heating

People in Saint James and nearby towns pick DML & S Air Conditioning & Heating Saint James NY because the company is local, experienced, and reachable. The crew delivers practical fixes, clear estimates, and follows up on service. Homeowners and small businesses rely on the team for lasting repairs and sensible advice about heating, cooling, and water systems.

Hours: Mon–Fri 8:00 AM to 5:00 PM. Emergency service is available outside these hours.