Top-rated furnace / forced air heating system install or replace pros.

Get matched with top furnace / forced air heating system install or replace pros in Old Greenwich, CT

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Furnace / forced air heating system install or replace pros in Old Greenwich

Avatar for Tyler Heating, Air Conditioning and Refrigeration LLC
Tyler Heating, Air Conditioning and Refrigeration LLC
4.6(
132
)

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"I always trust Chris as my technician to deliver superb service re: my furnace/boiler, hot water tank, split A/C system, and dehumidifier. It's a pleasure to greet him semi-annually, since he's courteous, pleasant, and professional, and since he answers all my questions re: my heating and cooling systems. I trust this talented tech being inside my home and tuning up all these systems. Kudos to Tyler Heating & A/C for hiring Chris as its employee."
Carrier Ductless Heat Pump Condenser
Carrier Performance Ductless Heat Pump High Wall Air Handler
Additional Photos
Additional Photos
Additional Photos

+172

Response time2 days
11 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Sila Heating, Cooling and Plumbing
Sila Heating, Cooling and Plumbing
4.5(
894
)

Serving Old Greenwich, CT and surrounding areas

Approved (Corporate)

In business since 1989

Free estimates

Emergency services offered

"I was able to get a same-day appointment, and Abraham showed up right on time. He took a look at the system and confirmed that the furnace was running as expected, and he didn’t find evidence of a cracked heat exchanger. I was hoping for a definitive answer as to why the air wasn’t flowing out of several of my vents, but he was only able to confirm that it wasn’t due to the furnace itself. I may have clogged or separated ductwork behind the walls, but he wasn’t able to diagnose/confirm. At least I know the furnace itself isn’t the source."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

Response time9 hrs
16 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Petro Home Services
Petro Home Services
4.3(
103
)

Serving Old Greenwich, CT and surrounding areas

Approved (Corporate)

In business since 1903

Emergency services offered

Warranties offered

"Great company! They've been super responsive when we've had questions or concerns, and deliveries are frequent enough that we never have to worry about running out of heating oil."
Additional Photos
Additional Photos
Additional Photos
Response time6 days
20 neighbors recently requested a quote
Recommended by86%of homeowners
Fairfield County Heating and Cooling
4.4(
187
)

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"During the hottest week in several years, THEY SAVED OUR BACON by 1) responding, 2) promising and 3) delivering. Specifically, they showed up on Tuesday, installed the new compressor on Wednesday, removed the defective valve in the attic (not an easy job with our outdated ductwork) on Thursday and installed the OVERNIGHTED special order replacement valve on Friday. New system works great. FYI, other numbers we called during the emergency said, "two weeks at the earliest.""
Navien gas boiler
Response time1 day
2 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Mike's Plumbing Services
Mike's Plumbing Services
4.3(
205
)

Serving Old Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2013

Free estimates

Emergency services offered

"Mike was great. He gave a very competitive qoute and took the time to explain the work that he would be doing. He was very professional and helpful from beginning to end. He installed a new Combi Boiler for us in 2 days now we have hot water and heat working perfectly once again. I would recommend Mike for any job."
Boderus high efficiency gas boiler
Boiler
Gas boiler
Shower installation
A/C Install

+5

Response time2 days
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Bell Mechanical, LLC
Bell Mechanical, LLC
4.0(
111
)

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 1980

Free estimates

Emergency services offered

"They came out and gave an estimate for a new boiler and we contracted with them for the replacement. The technicians seemed very knowledgeable and thorough. We had a few issues after the installation with air getting in the line and blocking the flow of hot water. However, Our installation came with a 1 year service contract and they returned to remedy the problem promptly and professionally. Bell stands behind their work. We would recommend Bell and will use them in the future."
Westchester Heat Pump
Westchester Heat Pump
Westchester Heat Pump
BBB Rating A+
Mitsubishi Diamond Dealer

+4

Response time1 day
13 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.6(
27
)

Serving Old Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"I had lost water pressure on Saturday and made a emergency call to a unknown company from google. I talked to a person immediately from Cassidy Plumbing and was told I would get a call from an employee in one hour. An employee called and would come over in 15 minutes. I was amazed at the response time. He check out my water system thoroughly and told me that I wasn't getting water in the well tank causing me to lose pressure but also I was not getting any pressure straight from the well either. It was either the water pressure tank with the pressure switch or the water pump that was causing this problem. The pressure gauge was also broken. He explained fully what needed to be done, the price for each issue and since he was not able to do anything until Monday, I was first on the list.
Cassidy Plumbing called me in the morning and told me that they would be their in one hour. They came promptly and went to the well tank first and found out the pressure switch had corroded and the well tank was also not doing it's job. The tank was about 15 years old and the switch was more than 25 years old. I was told and saw everything that needed to be replaced and the price. When replacing the valve close to the water filter housing the piping broke off and upon looking at it this was corroded too! I was able to get a discount for the water filter housing since they were working on that section of piping and it was unexpected. Afterwards they tested the water pressure to make sure all was working and that the register near the pressure switch was functioning.
My water room is the size of a closet. Inside is the water heater, water softener system (tank for salt and two tall cylinders), electrical box, telephone box, cast iron plumbing for toilet and the well tank. It was tight to say the least and they did a neat job of putting everything together and cleaning up.
I have had to replace my well pump and another time the electrical wiring to the pump and both these companies could not compare to the professionalism and services that Cassidy Plumbing and Heating."
Response time2 days
Response rate86%
18 neighbors recently requested a quote
Avatar for Smeriglio Electric, LLC
Smeriglio Electric, LLC
4.9(
37
)

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 2000

Free estimates

Small jobs welcome

"I���ve called Smeriglio Electric to work in my home, my parents home and two rental properties. They have done everything from running coax cable to installing new chandeliers and bathroom fans to repairing and replacing electric baseboard heaters to installing a generator. They are a pleasure to deal with. They are professional, very knowledgeable, courteous, prompt, neat and complete jobs quickly and on schedule. I would hire them without question again, and recommend them to anyone."
 Subpanel and lighting controls
 200A electrical distrubution panel with main brea
 200A panel close up
TV wall mounting etc
TV wall mounting etc after

+18

Response time3 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for L.C. Schede & Sons, Inc.
L.C. Schede & Sons, Inc.
4.0(
293
)

Serving Old Greenwich, CT and surrounding areas

Approved

In business since 1922

Free estimates

Emergency services offered

"Schede Plumbing Company is a fantastic heating company and Nick was unbelievable for helping me out with the heating systems. Did a wonderful and complete the job nicely and clean. Thank You Nick for all your help! From Wayne Chan"
 $100,000 Kitchen
Master Bath/Spa
Children's Bath
Guest Bath
Response time6 hrs
19 neighbors recently requested a quote
Recommended by89%of homeowners
...
Showing 1-10 of 370

FAQs for furnace / forced air heating system install or replace projects in Old Greenwich, CT

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 Old Greenwich, CT 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.