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

Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4.5(
318
)
Electric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Repair+18 more

Serving Lewes, DE and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"I couldn't be happier with the service I received from McCrea Heating and Air Conditioning Services of Maryland. Upon returning from vacation on a 100 degree July day, I found my old HVAC system basically dead (90 degrees in my kitchen!) ... Shane immediately came out to provide an estimate, we signed a contract on the spot, and he kindly provided some freon to hold me over until the new system could be installed. Brian and Nick showed up exactly on time to install the unit, used drop cloths to protect my flooring, and were exceedingly polite and professional throughout. I'd highly recommend this organization."
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6 neighbors recently requested a quote
Recommended by87%of homeowners
Mike's HVAC, LLC
4.8(
103
)
Heat Pump - Install or ReplaceGas Furnace / Forced Air Heating System - InstallOil Furnace / Forced Air Heating System - Install+6 more

Serving Lewes, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2012

Free estimates

Customers say: True professional

"Excellent, timely and professional service with top notch replacements for my furnaces and air conditioning units. All at a fair price well below many estimates. Strongly recommend."
Response time11 hrs
38 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Top Flight Heating & Air
Top Flight Heating & Air
4.9(
39
)
Heat Pump - Repair or ServiceGas Furnace / Forced Air Heating System - RepairElectric Furnace / Forced Air Heating System - Repair

Serving Lewes, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Our heat pump was making some strange sounds and we called and had an appointment right away! Isaiah was prompt, courteous and professional! He gave us a couple of options to help us with our heat pump issue. We opted to replace the heat pump and furnace and have peace of mind for the next 10 years. During install, Isaiah, Joseph and Michael all did a great job, they all were very professional and would definitely recommend them!!"
Repair Heat
Adjust Thermostat
Check Electrical
Check Refrigerant
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+50

Response time7 hrs
8 neighbors recently requested a quote
Recommended by59%of homeowners
Avatar for Shore2shore heating and cooling
Shore2shore heating and cooling
5.0(
14
)
Gas Furnace / Forced Air Heating System - InstallDuctless Mini-split Heating System - Install or ReplaceDucts & Vents - Install or Replace+2 more

Serving Lewes, DE and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"From the initial contact with Rob at Shore2shore, the experience was nothing short of wonderful. He spent considerable time evaluating my home and listening to my needs, then guided me through every step of the way with care and professionalism. I would 100% recommend this company to my friends and family. I'm very happy with the short time it took from the initial contact to the job completion for the heat pump system. Great job!"
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Elite HVAC-R Service
Elite HVAC-R Service
5.0(
7
)
Electric Furnace / Forced Air Heating System - RepairGas Furnace / Forced Air Heating System - RepairElectric Boiler or Radiator Heating System - Repair+11 more

Serving Lewes, DE and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"I had a great experience with Nate. He was extremely knowledgeable about A/C systems and was far more well-versed than many other companies in the area. He took the time to explain everything clearly, answer my questions, and make sure I understood the issue and solution. Nate was also very friendly, professional, and informative throughout the entire visit. I truly appreciated his expertise and excellent customer service. I would highly recommend Nate to anyone needing HVAC service."
3 neighbors recently requested a quote
Avatar for Something Constructive
Something Constructive
4.9(
118
)
Thermostat - Install or ReplaceThermostat - Repair or Reprogram

Serving Lewes, DE and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

"Patsy and his team did an awesome job remodeling our guest house—the pictures show it! We’re just waiting on a new mirror for the bathroom vanity and we’ll be set. We’ll definitely be using him for many more projects in our new home."
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+25

Response time1 day
Response rate100%
Recommended by97%of homeowners
Avatar for Royal Plus Electric, Inc.
Royal Plus Electric, Inc.
4.2(
222
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - Repair

Serving Lewes, DE and surrounding areas

Approved

In business since 1988

Emergency services offered

Small jobs welcome

Royal Plus Electric has more than 38-years of experience providing energy related services and power saving options for our clients. Temporary and long term back up power needs include generator sets and ATS units, alternative energy solutions such as solar, metal halide to LED conversion lighting, electrical switch gear and distribution maintenance as well as electrical efficiency studies. Royal Plus Electric offers expertise for adaptation of solar energy into your home or business.\n

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21 neighbors recently requested a quote
Recommended by95%of homeowners
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FAQs for furnace / forced air heating system install or replace projects in Lewes, DE

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 Lewes, DE 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.