Mc Intosh Plumbing & Heating Inc
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About Mc Intosh Plumbing & Heating Inc
Mc Intosh Plumbing & Heating Inc holds a 4.8-star rating across 74 reviews and serves Suffolk County from their Setauket-East Setauket base. Since 1991, the company has handled residential plumbing, heating, and cooling needs throughout the region. Their licensed and insured team provides services ranging from routine pipe repairs to full system installations, serving both homeowners and business owners who need reliable indoor climate control.
The company specializes in oil-to-gas conversions, a valuable service for Long Island homeowners upgrading from older heating systems. Their gas burner and water heater expertise covers installation and repair of high-efficiency equipment. The business also offers video pipe inspection technology for accurate sewer line diagnostics, helping pinpoint hidden problems without unnecessary digging. For cooling needs, they install central AC and ductless mini-split systems and handle compressor repairs.
Reviewers consistently mention technician Frank by name, describing him as reliable and professional. One customer recounts calling during the Tuesday before Thanksgiving in 2025 with no heat, and Frank arrived the next day to diagnose and resolve the issue when other contractors could not. Another reviewer notes Frank's crew completed a full oil-to-gas conversion, arriving on time each day until the job was finished. The team is praised for leaving homes clean and completing work within promised timeframes.
What Customers Say
All five sampled reviewers awarded 5 stars, with three specifically naming Frank and describing his technical skill, punctuality, and problem-solving ability. Themes across positive reviews include on-time arrival, completed work within promised timeframes, and careful cleanup. No negative reviews appear in the sampled data.
Working Hours
| SundayToday | Closed |
| Monday | 7:30 AM–5 PM |
| Tuesday | 12 AM–5 PM |
| Wednesday | 7:30 AM–12:30 AM |
| Thursday | 7:30 AM–5 PM |
| Friday | 7:30 AM–3:30 PM |
| Saturday | Closed |
Services
Plumbing Repairs & Installation
Fixes leaky pipes, unclogs drains, replaces water heaters, and handles general plumbing maintenance.
Heating System Installation & Repair
Services hot water boilers, forced hot air systems, and radiant floor heating for homes and businesses.
Oil to Gas Conversion
Removes old oil equipment and installs clean, efficient natural gas heating systems and appliances.
Air Conditioning Services
Installs and repairs central AC and mini-split systems, including compressor diagnostics and replacement.
Gas Burner & Water Heater Services
Installs and repairs high-efficiency gas burners and gas water heaters for residential and commercial use.
Sewer & Drain Cleaning
Clears clogged lines with state-of-the-art equipment and performs video inspections for accurate diagnostics.
Water Treatment
Provides water treatment services to improve water quality for residential and commercial properties.