Expert boiler replacement and installation across Nassau and Suffolk County. Gas, oil, steam, hot water, and combi boilers. All major brands. Free in-home estimates with no obligation. Same-day and next-day emergency service available.
See how we compare to typical HVAC contractors and handyman services.
| Feature | Domino's | Typical HVAC Co. | Handyman / Unlicensed |
|---|---|---|---|
| Licensed Master Plumber | ✓ | Varies | ✗ |
| Free In-Home Estimate | ✓ | ✓ | Phone only |
| 45+ Years on Long Island | ✓ | ✗ | ✗ |
| All Major Brands | ✓ | 2-3 brands | ✗ |
| Same-Day Emergency Service | ✓ | Varies | ✗ |
| No Emergency Surcharge | ✓ | ✗ | ✗ |
| Gas, Oil, Steam, and Combi | ✓ | Gas only | ✗ |
| Rebate and Financing Help | ✓ | Sometimes | ✗ |
| Post-Install Inspection | ✓ | Varies | ✗ |
The cost of a new boiler on Long Island depends on the type of system, the brand, the efficiency rating, and the complexity of the installation. A standard gas boiler replacement starts at $7,900, while high-efficiency condensing models, oil boilers, steam systems, and fuel conversions each carry different pricing based on what is involved. Our complete cost guide breaks down every factor so you know exactly what to expect.
Our installation process is straightforward. It starts with a free in-home estimate where we evaluate your current system, calculate your heating load, and recommend the right boiler for your home. Once approved, we schedule the installation at your convenience. Our crew handles everything: old boiler removal, new unit installation, piping and venting connections, system testing, and a final walkthrough with you. Most residential replacements are completed in a single day.
We also assist with National Grid rebates, federal tax credits, and flexible financing through Wisetack to make the investment as affordable as possible. Whether you are replacing an aging system, upgrading to higher efficiency, or converting from oil to gas, we have been doing this on Long Island since 1979.
View Full Cost GuideTransparent pricing with no hidden fees. Every quote includes equipment, labor, removal, and inspection. Visit our detailed cost guide for a complete breakdown.
Replace your boiler now and pay over time with flexible financing options. Low monthly payments with approved credit.
From routine replacements to complex fuel conversions, we handle every type of boiler project on Long Island.
Standard and high-efficiency condensing. The most common replacement on Long Island.
Cast iron oil boilers for homes without gas service. Beckett and Carlin burners.
One-pipe and two-pipe steam specialists. Precise radiation sizing for even heat.
Baseboard, radiator, and radiant floor. Standard and condensing hydronic systems.
Heat and hot water in one wall-mounted unit. Eliminates the need for a separate water heater.
Switch from oil to gas and save 25-40% on heating costs. We handle the full conversion.
Boiler failed? We stock common models for same-day or next-day installation. No surcharge.
Not sure if you need a new boiler? We will give you an honest assessment at no charge.
We are not locked into one manufacturer. We install 11 major brands and recommend the best fit for your home, heating system, and budget. See our full brand comparison.
Cast iron standard
Condensing & combi
Gas & oil lineup
German engineering
Greenstar series
American-made value
Multi-pass design
Northeast favorite
Oil & gas value
Broad lineup
Installer-ready
Full comparison
We have been replacing boilers on Long Island since 1979. Here is what sets us apart.
We have been installing and replacing boilers on Long Island since 1979. We have worked on every type of heating system in every type of Long Island home, from pre-war colonials with steam radiators to modern builds with radiant floor heat.
Every installation is performed by a licensed master plumber. This protects your home, your insurance, and your resale value. Many competitors skip proper licensing.
Gas, oil, steam, hot water, combi, and electric. We are not limited to one system type. Whether you are replacing a 30-year-old steam boiler or converting from oil to gas, we have the expertise.
We install 11 brands and are not locked into pushing one manufacturer. We recommend the boiler that fits your home and budget, not the one with the highest margin for us.
Every quote is written, itemized, and includes everything: equipment, labor, removal, and inspection. No surprises. No change orders. Visit our cost guide for full pricing details.
We offer flexible financing options through Wisetack. We also help you apply for National Grid rebates and federal tax credits to reduce your out-of-pocket cost.
Based in Melville. We install and service boilers across every town in Nassau County and Suffolk County.
Every town from the Queens border to the Suffolk line. Garden City, Levittown, Massapequa, Hempstead, and 60+ more communities.
Nassau County DetailsOur home base. Huntington to Montauk, including the North Fork, South Fork, and everything in between.
Suffolk County DetailsAnswers to the most common questions Long Island homeowners ask about boiler replacement.
Get a free in-home estimate. We will evaluate your current system, recommend the best option for your home, and provide a complete quote with all available rebates factored in.
