HVAC & Plumbing Services Long Island NY

Heating, Cooling & Plumbing Experts. Need Help Fast? Call Us 24/7 for Same-Day or Next-Day Service.

Call us 24/7: 631-591-2289

★★★★★ Trusted by Long Island homeowners since 2004

What We Do

Full-Service Heating, Cooling & Plumbing

From routine tune-ups to oil-to-gas conversions and 24/7 emergency repairs, All Island Comfort handles the full range of HVAC and plumbing work for homeowners across Long Island. Pick the service you need below to learn more, or return to our home page for an overview of the company.

Our Services

Home heating oil delivery on Long Island by All Island Comfort

Oil Delivery

Reliable home heating oil delivery across Long Island, with automatic delivery scheduling and same-day fills when you're running low. Our drivers know the area and arrive on time.

We serve Suffolk and Nassau Counties with automatic delivery, will-call orders, and capped or fixed-price programs that protect you from winter price spikes. Family-owned in Wading River since 2004, we don't subcontract our trucks.

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Oil Burner Service on Long Island by All Island Comfort

Oil Burner Service

Annual tune-ups, repairs, and parts replacement for residential oil burners. Keep your system running clean and efficient through every heating season.

Our certified technicians service every major residential oil burner and offer annual maintenance plans with priority scheduling. Catching small issues early means cleaner combustion, lower fuel bills, and far fewer no-heat calls in January.

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Heating Repair on Long Island by All Island Comfort

Heating Repair

Fast, certified heating repair for boilers, furnaces, oil burners, and heat pumps. We diagnose the problem, give you upfront pricing, and have most repairs done same-day.

We're available 24/7 for no-heat emergencies across Long Island and work on every fuel type, including natural gas, propane, oil, and electric heat pumps. Honest evaluations, no upsells, and common parts kept in stock for fast turnarounds.

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Oil Tank Services on Long Island by All Island Comfort

Oil Tank Services

Above-ground and underground oil tank installation, replacement, and removal. We handle permitting, soil testing, and proper disposal so the job is done safely and to code.

From above-ground Roth double-walled tanks to underground oil tank decommissioning, our work meets New York State environmental standards. We're licensed, insured, and experienced with both residential and small commercial properties on Long Island.

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Water Heaters on Long Island by All Island Comfort

Water Heaters

Repair and installation of tank, tankless, and indirect water heaters. We size, install, and maintain water heaters from all the major brands so you have hot water when you need it.

Whether you need a fast repair, a new tank, or a tankless conversion that frees up closet space and cuts your energy bill, we install Bradford White, Rheem, Navien, and Bosch units. Same-day estimates available across Suffolk and Nassau Counties.

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Boiler Services on Long Island by All Island Comfort

Boiler Services

Boiler repair, replacement, and conversion for steam and hot-water systems. Whether your boiler is leaking, short-cycling, or just old, we'll get it running efficiently again.

We install high-efficiency boilers from Buderus, Weil-McLain, Burnham, and Crown that can cut your annual heating costs by 25 percent or more. Long Island and New York State rebate programs may apply when you upgrade.

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Furnace Services on Long Island by All Island Comfort

Furnace Services

Furnace repair and installation for natural gas, propane, and oil-fired systems. We restore reliable, even heat throughout your home and tune things up before the cold sets in.

We also handle ductwork inspections, filter upgrades, and indoor air-quality add-ons like HEPA filtration and UV lights. Annual furnace tune-ups extend equipment life and keep your manufacturer warranty valid.

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Heat Pumps on Long Island by All Island Comfort

Heat Pumps

Cold-climate heat pump installation and service for Long Island homes. Get year-round heating and cooling from one efficient system, with available rebates that help lower the upfront cost.

Take advantage of NYS Clean Heat rebates of $4,000 to $7,500 through PSEG when you upgrade to a heat pump. Ductless mini-splits are ideal for home additions, garages, and Long Island homes without existing ductwork.

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Air Conditioning on Long Island by All Island Comfort

Air Conditioning

Central AC, mini-split, and ductless system installation, maintenance, and repair. We keep Long Island homes cool through every summer heat wave.

We install and service Carrier, Trane, Mitsubishi, and LG systems, and offer pre-season AC tune-ups that catch refrigerant and capacitor issues before the first July heat wave. SEER2-rated equipment can meaningfully lower your summer electric bill.

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Plumbing on Long Island by All Island Comfort

Plumbing

Full-service residential plumbing, including leak repair, drain cleaning, fixture installation, and pipe replacement. Licensed plumbers, upfront pricing, and clean, careful work.

From frozen pipes and sump pump failures to bathroom remodels and kitchen rough-ins, we handle residential plumbing projects of every size. Available 24/7 for plumbing emergencies across Long Island.

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Oil to Gas Conversion on Long Island by All Island Comfort

Oil to Gas Conversion

Convert your home from oil heat to natural gas with a single contractor. We handle the equipment, permitting, gas-line work, and old tank removal from start to finish.

Switching to natural gas typically saves homeowners 20 to 40 percent on annual heating costs and may qualify for National Grid rebates. We coordinate directly with the gas utility so you don't have to chase paperwork.

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Oil to Heat Pump Conversion on Long Island by All Island Comfort

Oil to Heat Pump Conversion

Get off heating oil without waiting for a gas main. We install cold-climate heat pumps that deliver full heating capacity at 5°F, remove the old oil tank, and handle every piece of the rebate paperwork.

PSEG Long Island's whole-home rebates run $4,000 to $7,500, and qualifying homes get the discounted Rate 580 winter electric rate. One system replaces your boiler and your air conditioning, and the oil truck never comes back.

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Task 87 Plumber on Long Island by All Island Comfort

Task 87 Plumber

Gas meter locked or red-tagged? Since 2023, National Grid requires Task 87 gas operator qualification for work at the meter on Long Island. We repair the leak, run the pressure test, and coordinate the restoration.

From failed leak surveys to meter relocations and new gas tie-ins, we handle the covered work, the town permits, and the utility paperwork that gets your gas turned back on in days, not weeks.

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Commercial Refrigeration on Long Island by All Island Comfort

Commercial Refrigeration

Walk-in coolers and freezers, reach-ins, ice machines, and display cases for restaurants, delis, bars, and markets across Suffolk and Nassau, including real East End coverage.

When a walk-in warms past 41°F, health code gives you about four hours before product is lost. We dispatch 24/7, service all major brands, and offer preventive maintenance contracts with priority response.

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Sump Pumps on Long Island by All Island Comfort

Sump Pumps

On much of Long Island the water table sits just below basement depth, and every nor'easter pushes it higher. We install, replace, and repair sump pumps sized to your actual inflow and lift.

Battery backup systems keep pumping when storms take the power out, exactly when you need them most. Pro-grade Zoeller and Liberty equipment, discharge routed to code, and 24/7 emergency replacement.

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24/7 Emergency Services on Long Island by All Island Comfort

24/7 Emergency Services

Around-the-clock emergency response for no-heat, no-hot-water, leaks, and other urgent HVAC and plumbing issues. Same-day service when you need us most.

Most emergency calls on Long Island are dispatched within the hour. Frozen pipes, oil burner shutdowns, water leaks, no-hot-water, gas smells, sewer back-ups: call us first, day or night.

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Not Sure Which Service You Need?

Tell us what's going on and one of our certified technicians will help you figure it out. We're available 24/7 across Long Island, Suffolk County, and Nassau County.

Call Now: 631-591-2289