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Improve or Replace Your HVAC System and Save

Today’s HVAC equipment is more versatile and compact than in the past. This high-efficiency gas furnace easily fits in the crawl space of this home.

Why Homeowners Choose Us For Heating & Cooling Solutions

  • "Right-sized" Heating & cooling solutions keep you comfortable without wasting energy or money
  • Insulation and air sealing upgrades can increase your HVAC efficiency and provide lifetime home improvements
  • Free Estimates & Fast Service!

The weather, temperature and humidity levels in Connecticut are always fluctuating. When you stop to think about it, there aren't too many times during the year when the outside temperature is just right. That's why we rely on heating and cooling systems to maintain comfortable interior temperatures.

Heating & cooling services offered in CT:

HVAC stands for Heating, Ventilation & Air Conditioning, but it's often used just to refer to a building's heating and cooling systems. However you interpret the acronym, there's no doubt about the big chunk that the HVAC system takes out of our annual energy budget. In the average house, nearly half of our energy dollars are spent on heating and cooling.

Some HVAC components (like heat pumps, for example) can provide both heating and cooling. Others (like furnaces) accomplish just one function.

All HVAC components are described in several ways: by function, fuel, energy efficiency, and heating or cooling capacity. Find more detailed descriptions about HVAC component by navigating to the appropriate pages. 

Heating & cooling services Stamford, Norwalk, Darien & nearby

Dr. Energy Saver Of Connecticut provides heating and cooling systems in Stamford, Norwalk, Darien and nearby areas such as Greenwich, New Canaan, Danbury, Westport, Ridgefield, Hamden, West Hartford, Cheshire, Milford, Trumbull, Shelton, Bridgeport, Hartford, New Haven, Waterbury, Manchester, New Britain, Bristol, Meriden, Glastonbury, Monroe, Stratford.

Efficiency ratings and what they mean

Chart for energy use in a home that breaks down HVAC heating and cooling use.

Upgrading to super-efficient HVAC equipment can cut heating and cooling costs by 30%-50%.

A furnace boiler or water heater burns fuel to generate heat and needs to put that heat into an air stream in your ducts, or into water in your pipes. The efficiency rating is what percentage of that heat gets into your air or water. What happens to the rest of the heat? It goes up the chimney and is lost into the sky. Therefore, a 15-year-old furnace that is 65% efficient is putting 35% of the heat you paid for up the chimney. A 96% efficient furnace only "wastes" 4%! A big difference! And since the cost of the fuel you put through a furnace, boiler or water heater during its lifetime is much greater than the cost of the unit itself, it's worth it to install the very highest efficiency equipment available! Let Dr. Energy Saver accomplish this in your home!

Dr. Energy Saver Connecticut can evaluate your current heating system and provide a free quote on a super-efficient system that will save you money. Call or email today for a free quote.

Dr. Energy Saver Connecticut performs comprehensive inspections and assessments of CT heating and cooling systems!

We can service HVAC components to provide optimum operating efficiency. We can also provide free estimates for replacing old, inefficient equipment with advanced equipment that will save energy and improve interior comfort. Upgrading to super-efficient HVAC equipment can cut heating and cooling costs by 30%-50%. Call or email today for a free estimate.

Contact Us For A FREE Heating & Cooling Estimate

Oil Furnace Replaced with High-Efficiency Heat Pump, Gas Furnace, and AC

Larry Janesky, president of Dr. Energy Saver explains how new heat pumps, combined with a gas furnace, can heat homes efficiently -- even in northern climates.

Relieve your heating & cooling systems with insulation

an HVAC expert installing attic insulation in a home in Danbury

If a heating contractor (sometimes called an HVAC installer) comes to evaluate your HVAC system, don't be surprised if he or she also takes time to inspect levels of insulation in your house.

There's a good reason for this. Insulation slows the transfer of heat.

In winter months, higher insulation levels mean that less heat will escape from your house, so your heating system will not need to operate as frequently. In the summer, insulation slows heat movement from outside to inside, putting less demand on your cooling system.

A home heating company may recommend upgrading insulation levels in different parts of your house, along with air-sealing improvements that will limit the volume of conditioned air that leaks to the outside. A tighter (air sealed), well-insulated house will require a smaller HVAC system than a leaky, poorly insulated housed.

That's why "building envelope" improvements are just as important to heating and cooling savings as the HVAC system itself.

We are your trusted HVAC contractor in Stamford, Norwalk, Darien, and nearby areas! We look forward to answering your questions!

Contact Us For
An Estimate

Privacy Statement: Your information will be kept confidential and will not be shared with any third parties.

Start Saving Energy and Money With A Heating and Cooling Upgrade.

Call 1-800-328-1081 or contact us online to schedule a free home inspection and heating and cooling estimate.

Customer Review
  • By Shawn L.
    Fairfield, CT

    "Will use your company again & will recommend; found your company through CT Basement Systems, also through neighbor's..."

    Customer Review

    By Shawn L.
    Fairfield, CT

    Will use your company again & will recommend; found your company through CT Basement Systems, also through neighbor's recommendation. Great work!

  • By Victor G.
    Brookfield, CT

    "Overall a very good job!"

    Customer Review

    By Victor G.
    Brookfield, CT

    Overall a very good job!

  • By Jim O.
    Newtown, CT

    "We will probably have you back in Spring 2012 or earlier to install kneewall insulation."

    Customer Review

    By Jim O.
    Newtown, CT

    We will probably have you back in Spring 2012 or earlier to install kneewall insulation.

  • By Frank R.
    Orange, CT

    "Your entire company from sales associates to workers are professional and top notch! I am very happy with my decision to chose..."

    Customer Review

    By Frank R.
    Orange, CT

    Your entire company from sales associates to workers are professional and top notch! I am very happy with my decision to chose Dr. Energy Saver as my installers.

  • By Joseph T.
    Seymour, CT

    "The crew was very professional and made sure that all my concerns were addressed to my satisfaction. You run a very professional..."

    Customer Review

    By Joseph T.
    Seymour, CT

    The crew was very professional and made sure that all my concerns were addressed to my satisfaction. You run a very professional company. Thank you.

  • By Winston B.
    West Haven, CT

    "One issue came up which was the rebates; however, it was resolved promptly with satisfaction on both sides."

    Customer Review

    By Winston B.
    West Haven, CT

    One issue came up which was the rebates; however, it was resolved promptly with satisfaction on both sides.

  • By Bette T.
    Woodbury, CT

    "the only comment I have is that when the insulation was blown in the TVs did not work and the thermostat had to be reset. I had..."

    Customer Review

    By Bette T.
    Woodbury, CT

    the only comment I have is that when the insulation was blown in the TVs did not work and the thermostat had to be reset. I had to call Charter Cable to come up and fix the problem at a service charge from them and another technician from the company came in to redo the thermostat as I could not fix that problem because it had to be done by a technician. I was assured that the service call to the TV company would be paid for by Dr. Energy. Have not received the bill as of yet but will send it down for payment when I receive it. Otherwise the technicians were wonderful, considerate and professional. Bette Thorgersen

  • By Robert P.
    Woodbridge, CT

    "You made a good start at improving the energy efficiency of our house, but there is more to do and we would welcome discussions..."

    Customer Review

    By Robert P.
    Woodbridge, CT

    You made a good start at improving the energy efficiency of our house, but there is more to do and we would welcome discussions about other items you can help with.

  • By Paul A.
    Waterbury, CT

    "The installation was thorough,and beyond our expectations. The cleanup was even better than promised."

    Customer Review

    By Paul A.
    Waterbury, CT

    The installation was thorough,and beyond our expectations. The cleanup was even better than promised.

  • By Kathy C.
    Old Saybrook, CT

    "Willing to tackle some complex problems and complete the jobs very competently."

    Customer Review

    By Kathy C.
    Old Saybrook, CT

    Willing to tackle some complex problems and complete the jobs very competently.

We proudly offer HVAC installation in Norwalk, Stamford, Darien, and nearby areas such as Greenwich, New Canaan, Danbury, Westport, Ridgefield, Hamden, West Hartford, Cheshire, Milford, Trumbull, Shelton, Bridgeport, Hartford, New Haven, Waterbury, Manchester, New Britain, Bristol, Meriden, Glastonbury, Monroe, Stratford. Contact us today for more information about gas and oil heating, air conditioning, and boiler heating and repair-- and more!

Looking for a price? Get a no cost, no obligation free estimate.

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Serving CT including the Greater Stamford area
Our Connecticut Service Area
Cities in Fairfield County, CT
Bethel
Botsford
Bridgeport
Brookfield
Cos Cob
Danbury
Darien
Easton
Fairfield
Georgetown
Greens Farms
Greenwich
Hawleyville
Monroe
New Canaan
New Fairfield
Newtown
Norwalk
Old Greenwich
Redding
Redding Center
Redding Ridge
Ridgefield
Riverside
Sandy Hook
Shelton
Sherman
Southport
Stamford
Stevenson
Stratford
Trumbull
Weston
Westport
Wilton

Cities in Hartford County, CT
Avon
Berlin
Bristol
Burlington
Collinsville
East Berlin
East Hartford
Farmington
Glastonbury
Hartford
Manchester
Marlborough
New Britain
Newington
Plainville
Plantsville
Rocky Hill
South Glastonbury
Southington
Unionville
West Hartford
Wethersfield

Cities in Litchfield County, CT
Bantam
Barkhamsted
Bethlehem
Bridgewater
Canaan
Cornwall Bridge
East Canaan
Falls Village
Gaylordsville
Goshen
Harwinton
Kent
Lakeside
Lakeville
Litchfield
Morris
New Hartford
New Milford
New Preston Marble Dale
Norfolk
Northfield
Oakville
Plymouth
Roxbury
Salisbury
Sharon
South Kent
Terryville
Thomaston
Torrington
Washington
Washington Depot
Watertown
West Cornwall
Woodbury

Cities in Middlesex County, CT
Centerbrook
Chester
Clinton
Cromwell
Deep River
Durham
East Haddam
East Hampton
Essex
Haddam
Higganum
Ivoryton
Killingworth
Middlefield
Middletown
Moodus
Old Saybrook
Portland
Rockfall
Westbrook

Cities in New Haven County, CT
Ansonia
Beacon Falls
Bethany
Branford
Cheshire
Derby
East Haven
Guilford
Hamden
Madison
Meriden
Middlebury
Milford
Naugatuck
New Haven
North Branford
North Haven
Northford
Orange
Oxford
Prospect
Seymour
Southbury
Wallingford
Waterbury
West Haven
Wolcott
Woodbridge

Cities in New London County, CT
Baltic
Bozrah
Colchester
East Lyme
Gales Ferry
Gilman
Groton
Jewett City
Lebanon
Ledyard
Montville
Mystic
New London
Niantic
North Franklin
North Stonington
Norwich
Oakdale
Old Lyme
Pawcatuck
Preston
Quaker Hill
Salem
Stonington
Taftville
Uncasville
Voluntown
Waterford

Cities in Tolland County, CT
Amston
Andover
Bolton
Columbia
Coventry
Hebron
Mansfield Center
Stafford Springs
Storrs Mansfield
Tolland
Vernon Rockville
Willington

Cities in Windham County, CT
Ashford
Brooklyn
Canterbury
Chaplin
Danielson
Dayville
East Killingly
Eastford
Hampton
Moosup
North Grosvenordale
North Windham
Plainfield
Pomfret Center
Putnam
Quinebaug
Scotland
South Windham
Sterling
Thompson
Willimantic
Windham
Woodstock
Woodstock Valley

Cities in Westchester County, NY
Ardsley

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Testimonials

Dr Energy saver came out to my Brookfield home, they air sealed my attic and repaired and sealed my duct work. This work will help make our rooms less drafty...
Testimonial by Victor G. from Brookfield , CT

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