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50+ Years
experience
Emergency
services
24/7 Plumbing & HVAC Services in West Islip, NY
Dashing Dan's Plumbing, Heating & Cooling has served Suffolk and Nassau Counties since 1961, providing reliable emergency and scheduled services for residential and commercial clients. Our licensed, bonded, and insured technicians specialize in plumbing, heating, and air conditioning repairs, installations, and maintenance, with a focus on customer satisfaction and affordability. With over 60 years of combined experience, we offer 24/7 emergency response, membership plans for preventive care, and financing options to meet diverse client needs.

Our team prioritizes transparency, using advanced diagnostic tools and industry-standard practices to ensure systems operate at peak efficiency. Recognized as Long Island's #1 plumbing service, we maintain partnerships with major commercial clients while delivering personalized solutions for homeowners.
Services
Plumbing Repairs Heating Installation Cooling Maintenance Emergency Services Membership Plans New Construction Plumbing
Details
  • Year established: 1961
Highlights and features
  • We offer 24/7 emergency service with technicians available within 15 minutes.
  • Licensed, bonded, and insured professionals with over 60 years of combined experience.
  • Membership plans include annual system checkups at no additional cost.
  • Financing options available for major installations and repairs.
  • Serving Suffolk and Nassau Counties with local market expertise.
Services
Plumbing Repairs
We address urgent plumbing issues like burst pipes, clogged drains, and water heater failures 24/7. Our technicians use video diagnostics to locate blockages and perform same-day repairs. Commercial and residential clients in Suffolk and Nassau Counties rely on our rapid response and guaranteed warranties for lasting solutions.
Heating Installation
Specializing in oil/gas boilers, furnaces, and ductless systems, we install energy-efficient heating units tailored to Long Island's climate. Our team ensures proper sizing and compliance with local codes, offering free annual checkups for members. Over 55 years of experience supports optimal system performance and longevity.
Cooling Maintenance
Preventive cooling maintenance includes refrigerant checks, coil cleaning, and electrical inspections to avoid summer breakdowns. Annual tune-ups for members ensure peak efficiency and early detection of potential issues. We service all major AC brands and models across residential and commercial properties.
Membership Plans
Our membership plans provide discounted repairs, priority scheduling, and free annual system inspections. Coverage includes plumbing, heating, and cooling equipment with flexible terms for homeowners and businesses. Members receive exclusive seasonal specials and extended warranties on service work.
New Construction Plumbing
We design and install plumbing systems for new commercial developments, partnering with general contractors to meet project timelines. Services include sewer lines, grease traps, and fixture installations. Past projects include major franchises like Shake Shack and PetSmart, completed under budget and ahead of schedule.
Questions
What areas do you service?
We serve Suffolk and Nassau Counties, including Babylon, Bay Shore, East Islip, and West Islip.
Do you offer emergency services?
Yes, our technicians are available 24/7 for urgent plumbing, heating, and cooling repairs.
Are financing options available?
We offer 18 months of no-interest financing for major installations and repairs.
What membership plan benefits exist?
Members receive free annual checkups, discounted repairs, priority scheduling, and seasonal specials.
How quickly can you respond to emergencies?
Our technicians arrive within 15 minutes of dispatch for all emergency service calls.