Boiler Installation & Replacement
on Long Island

Signs You Need a New Boiler

Every boiler has a lifespan. Even well-maintained oil boilers eventually reach a point where repair costs outweigh the benefits and efficiency drops below acceptable levels. Knowing when to replace your boiler can save you thousands in fuel costs and prevent the inconvenience of a mid-winter breakdown.

Here are the most common signs that your boiler is nearing the end of its service life:

• Age over 15–20 years Oil boilers typically last 20–30 years with proper maintenance, but efficiency declines significantly after 15 years. If your boiler was installed before 2010, it likely lacks the efficiency features found in modern equipment. Older boilers may operate at 80% AFUE or less, meaning 20 cents or more of every fuel dollar goes straight up the chimney.
• Frequent or expensive repairs If you've called for boiler repair two or more times in the past heating season, or a single repair estimate exceeds 50% of the cost of a new boiler, replacement is usually the smarter financial decision. Aging components tend to fail in sequence. Fixing one part often means another is close behind.
• Rising fuel bills If your oil consumption has been climbing steadily without a change in your heating habits, your boiler is losing efficiency. Soot buildup, deteriorating heat exchanger surfaces, and worn burner components all force the system to burn more fuel to produce the same amount of heat. A new high-efficiency boiler can reduce fuel consumption by 15–30%.
• Strange noises Kettling (a rumbling or whistling sound), banging, or clunking from your boiler are signs of mineral buildup, trapped air, or failing internal components. Kettling in particular indicates scale deposits on the heat exchanger, which reduces efficiency and can eventually cause cracks or leaks.
• Visible corrosion or leaks Rust on the boiler jacket, water stains beneath the unit, or active leaks from joints and seals are serious warning signs. Corrosion weakens the pressure vessel and heat exchanger, and once leaks appear, the structural integrity of the boiler is compromised. Leaking boilers should be replaced promptly to avoid water damage and safety hazards.

If you're experiencing any of these issues, contact us for a free evaluation. We'll assess your current system and give you an honest recommendation on whether repair or replacement makes the most sense for your situation.

Boilers We Install

We install oil boilers from the industry's most trusted manufacturers. Every unit we put in is selected based on your home's specific heating needs, hot water demands, and budget. Our technicians are factory-trained on each brand we carry, ensuring your new boiler is installed correctly and performs at its rated efficiency from day one.

Energy Kinetics System 2000 Frontier

The System 2000 Frontier is the most efficient oil boiler available for residential heating. With an AFUE rating of 87–88% and real-world fuel savings of 15–30% compared to conventional boilers, the Frontier pays for itself over time through dramatically lower fuel bills. Its patented heat purge system extracts residual heat after each firing cycle instead of letting it escape up the chimney, which is why Energy Kinetics boilers consistently outperform their rated efficiency in the field.

The System 2000 Frontier is built to last 30+ years with proper maintenance, features a compact footprint that fits in tight mechanical rooms, and can provide domestic hot water through an integrated coil or indirect tank. It's our most recommended boiler for Long Island homeowners looking to maximize fuel savings and long-term reliability.

Energy Kinetics Ascent Combi

The Ascent Combi combines space heating and domestic hot water in a single compact unit, eliminating the need for a separate water heater. It's an excellent choice for homes with limited mechanical room space or for homeowners replacing both a boiler and water heater at the same time. The Ascent Combi delivers the same Energy Kinetics efficiency and durability in a smaller package.

Authorized Energy Kinetics Dealer

We're a factory-authorized Energy Kinetics dealer and installer. Our technicians complete manufacturer training to ensure every System 2000 and Ascent Combi is installed to spec. Learn more about Energy Kinetics →

Peerless WBV Series

The Peerless WBV is a proven cast iron oil boiler that has earned a reputation for reliability and longevity on Long Island. Cast iron construction provides exceptional heat retention and durability, and the WBV series is available in a range of sizes to match homes of all sizes. Peerless boilers are a solid choice for homeowners who want dependable, straightforward heating equipment backed by decades of manufacturer experience.

Peerless Boiler Installer

We install and service the full Peerless WBV lineup. Cast iron reliability at a competitive price point. Learn more about Peerless Boilers →

Other Brands We Install

In addition to Energy Kinetics and Peerless, we install boilers from several other respected manufacturers:

• Weil-McLain Ultra, WGO, SGO, and legacy cast iron models. A widely trusted name in residential oil heating with a broad product range.
• Burnham MPO-IQ, ES2, and V8H series. Known for reliable cast iron construction and consistent performance.
• Buderus G115WS, G215, and Logano series. German-engineered boilers with excellent build quality and efficiency.

Not sure which boiler is right for your home? Call us at (631) 261-7729 or request a free estimate. We'll assess your home and recommend the best option based on your heating needs and budget.

What to Expect: Installation Process

Replacing a boiler is a significant home improvement project, and we believe you should know exactly what's involved before any work begins. Here's how a typical boiler installation works from start to finish:

1. Home assessment & sizing A Dole Service technician visits your home to evaluate your current heating system and inspect the mechanical room. This ensures the new boiler is sized correctly for your home.
2. Equipment selection & quote Based on the assessment, we recommend one or more boiler options that match your home's requirements and your budget. You receive a detailed, written quote that covers the boiler, all materials, labor, and any additional work like chimney relining or piping modifications. There are no hidden fees or surprise charges.
3. Old boiler removal On installation day, our crew disconnects and removes your existing boiler. We drain the system, disconnect all piping and electrical connections, and safely remove the old unit from your home. We handle disposal of the old equipment so you don't have to.
4. New boiler installation The new boiler is set in place and connected to your existing heating distribution system. This includes all piping, electrical wiring, fuel line connections, and flue/chimney connections. If your chimney needs a new stainless steel liner, we handle that as part of the installation.
5. Testing & commissioning Once the installation is complete, we fire up the new boiler and run a full battery of tests. We verify oil pump pressure, check combustion efficiency with a digital analyzer, test all safety controls, bleed air from the system, and confirm that every heating zone is producing heat. We don't leave until the system is running perfectly.
6. Cleanup & walkthrough We clean up the work area completely, removing all packaging, debris, and the old equipment. Before we leave, we walk you through your new boiler: how to operate the thermostat, what the indicator lights mean, how to reset the system if needed, and when to schedule your first annual service.

Typical timeline: Most residential boiler replacements are completed in 1–2 days. More complex installations that require chimney relining, extensive piping changes, or converting from a different fuel type may take an additional day.

After installation, keep your new boiler running at peak efficiency with annual maintenance and tune-ups from Dole Service.

Boiler Installation Cost Guide

The cost of a new boiler installation depends on several factors specific to your home and the equipment you choose. We believe in transparent pricing with no hidden fees, which is why we provide detailed written quotes after an in-home assessment rather than vague estimates over the phone.

Here are the main factors that affect the cost of a boiler replacement:

• Boiler type and brand High-efficiency boilers like the Energy Kinetics System 2000 Frontier cost more upfront than standard cast iron models, but the fuel savings of 15–30% per year often offset the higher initial investment within a few years. The right choice depends on how long you plan to stay in your home and how much you currently spend on heating oil.
• Home size and heating demand Larger homes with more heating zones require higher-capacity boilers, which cost more than smaller units. A 2,000-square-foot home with three zones has very different requirements than a 4,000-square-foot home with six zones and an indirect water heater.
• Complexity of piping If your new boiler uses the same type of distribution system as your old one (baseboard, radiators, or radiant floor), the piping modifications are minimal. If changes are needed, such as converting from steam to hot water, adding zones, or rerouting pipes, the labor and materials increase accordingly.
• Chimney lining Many older homes have unlined masonry chimneys that need a stainless steel liner when a new boiler is installed. Modern boilers produce lower flue gas temperatures that can cause condensation in oversized, unlined chimneys, leading to deterioration and potential carbon monoxide issues. A new liner is an additional cost but is essential for safe, proper operation.
• Removal of old equipment The cost includes disconnecting, removing, and disposing of your existing boiler. If the old unit is particularly large, located in a difficult-to-access area, or contains materials that require special handling, removal costs may be higher.

Contact us for a free, no-obligation estimate. We'll visit your home, evaluate your system, and provide a detailed written quote so you know exactly what to expect. Call (631) 261-7729 or fill out the form below to get started.

Installing a new boiler? It may also be the right time to update your oil tank. We install Roth double-wall and Granby tanks alongside boiler replacements, and bundling the work can save on labor costs.