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Top-Rated Furnace / forced air heating system install or replace pros in Bay Shore - Updated Nov 2026

Avatar for MSD Heating & Cooling
MSD Heating & Cooling
4.9(
74
)
Boiler or Radiator Heating System - Install or ReplaceBoiler or Radiator Heating System - Install or Replace - For BusinessBoiler or Radiator Heating System - Repair or Service+43 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"Ali was very easy to contact and talk to. He clearly explained the different steps, potential issues and associated cost. Talked me away from switching the whole system to the new refrigerant. Great overall! Made it very easy (we usually do not like interacting with contractors)."
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+1

2 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - RepairHeat Pump - Install or Replace+43 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"I was very happy with my service call today! The repairman, Scott, was knowledgeable and pleasant and wore a mask and gloves throughout., so I felt safe, despite the pandemic. He serviced both of my central air systems and diagnosed the problem with the malfunctioning one and fixed it. By the time he left my house was already a much more pleasant place to be!"
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
KS Mechanical Services Corp
4.8(
20
)
Ductless Mini-split Heating System - Install or ReplaceDucts & Vents - Install or ReplaceElectric Boiler or Radiator Heating System - Install+27 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

At KS Mechanical Services we take great pride in our experience, expertise, quality and customer service we provide to meet the consumer?s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. KS Mechanical's expertly trained staff will work with you to design new systems for your home or office to keep within your budget. Our reputation is based on service, safety and quality, regardless of how large or small the job. **10% SENIOR CITIZEN DISCOUNT **FREE ESTIMATES FOR NEW INSTALLATIONS AND REPLACEMENTS **FINANCING AVAILABLE

Recommended by57%of homeowners
Avatar for Elm Air Conditioning Corp
Elm Air Conditioning Corp
4.4(
82
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+33 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 1952

Free estimates

Warranties offered

"As a Full-Service Contractor and Residential Builder in Nassau County, we at HOMEREDI have relied on the Expert Team of Technicians and Installers from ELM Air Conditioning in Freeport Long Island for all of our discerning Clients HVAC requirements. The entire staff from the Operating Owners to every individual member are always willing to push the envelope forward when it comes to meeting our deadlines and delivering a superb product in a timely fashion. Not only we team up with ELM but we also capitalize on their vast reach and knowledge for our own residential air conditioning Service installation and continued maintenance Service. We highly recommend ELM Air conditioning not only to our Clients but to our Neighbors across the Island."
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14 neighbors recently requested a quote
Recommended by77%of homeowners
Rizzo Heating & Cooling, Inc.
4.9(
87
)
Gas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+2 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Guy and his team were very professional , got here when he said he would and completed the gas heat and air compressor in a day and a half. I highly recommend."
Response time7 hrs
Recommended by100%of homeowners
Avatar for MassAir
MassAir
4.9(
65
)
Gas Furnace / Forced Air Heating System - InstallHeat Pump - Install or ReplaceOil Furnace / Forced Air Heating System - Install+8 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 2007

Free estimates

Warranties offered

"I hired MassAir Inc. to install a furnace and central air in my home. Calls were quickly returned, and all questions were answered. The price was very fair. Joe was very easy to talk with, honest, and clear about what was going to be done. and the expected time it would take. He and his workers were on time, professional, efficient and clean. Joe went over everything after it was completed. I am very pleased with the work!"
Furnace
Ductless mini-split
Air Handler
Condenser
Condenser

+9

Response time3 hrs
15 neighbors recently requested a quote
Recommended by95%of homeowners
New York HVAC Corporation
4.3(
60
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For BusinessGas Boiler or Radiator Heating System - Repair+17 more

Serving Bay Shore, NY and surrounding areas

Approved

In business since 2012

Free estimates

Customers say: Quality work

"They were able to diagnose the issue for my heat pump fairly quickly while also being diligent to ensure that was the correct issue."
 HVAC
 HVAC
 HVAC
 HVAC
 HVAC

+54

Response time1 day
1 neighbors recently requested a quote
Recommended by91%of homeowners
All Island Heating & Air
3.6(
78
)
Gas Boiler or Radiator Heating System - RepairGas Furnace / Forced Air Heating System - RepairHeat Pump - Repair or Service

Serving Bay Shore, NY and surrounding areas

Approved

In business since 1985

Emergency services offered

Credit card accepted

"Phill the owner responded quickly to my needs he came and evaluated my system told me that I needed a new system put in he was very concerned about our situation and heat levels while the system was not functioning and factored in that my spouse was not feeling well. All of his technicians are skilled and well qualified. We highly recommend him and thank this business for a job well done and we appreciate all the care and concern."
New Central Install
New Heating & Cooling
Boiler and Hot Water Tank
Response time9 hrs
22 neighbors recently requested a quote
Recommended by78%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in Bay Shore, NY

Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.

Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.

With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.

The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.

Consulting with an HVAC professional can help you determine the exact size that's right for your home.

An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.

An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.

The Bay Shore, NY homeowners’ guide to furnace / forced air heating system installs or replaces

From average costs to expert advice, get all the answers you need to get your job done.