Local Furnace Replacement Experts in Connecticut
Alliance Heating & Air provides professional furnace replacement and installation for homeowners across Fairfield County, Connecticut and Westchester County, New York, using top-tier, high-efficiency systems built for cold-weather performance and larger homes.
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Expert Furnace Installation Across Fairfield & Westchester
When it’s time to replace your furnace, you’re not just buying equipment — you’re upgrading the performance, efficiency, and reliability of your entire home. Alliance Heating & Air delivers high-end furnace replacement and installation for discerning homeowners across Fairfield County and Westchester County, with a focus on precision design, premium systems, and seamless execution.
Call 203.335.9464 today to schedule a consultation, or request a custom quote.
We manage the entire process — from system design and equipment selection to installation, calibration, and final testing — so your home is restored to quiet, consistent, dependable heat with minimal disruption.
Alliance Heating & Air Conditioning: For Professional installation of Furnace Systems
Alliance Heating & Air Conditioning has been serving homeowners throughout Connecticut and the New York suburbs since 1979, with a long-standing focus on professional furnace installation and replacement. Our team installs high-efficiency furnaces every day in local homes, giving us deep experience designing heating systems that deliver reliable comfort, energy efficiency, and long-term performance.
✓ Serving local homeowners since 1979
✓ Licensed in both Connecticut and New York
✓ Expert system sizing for larger, high-value homes
✓ Trained on all major furnace brands
✓ Backed by nationally recognized certifications
✓ Known for clean, professional installations
Our Furnace Installation Process
For high-value homes, furnace replacement isn’t a basic equipment swap — it’s a performance upgrade that affects comfort, efficiency, and long-term reliability. Alliance Heating & Air follows a precision-driven installation process designed to deliver quiet operation, consistent temperatures, and flawless system integration.
Detailed in-home evaluation and heat-load analysis
We assess square footage, ceiling heights, insulation levels, window exposure, duct design, and heating demand to determine the exact system capacity your home requires — not a generic size replacement.
Custom system design and airflow engineering
We evaluate duct sizing, return placement, and airflow balance to ensure even heat distribution throughout large or multi-level homes.
Curated equipment selection
We guide you through premium furnace models, efficiency tiers, and performance features based on your comfort expectations, home layout, and usage patterns.
Precision installation and integration
Your new furnace is installed by licensed technicians and integrated seamlessly with existing ductwork, zoning systems, thermostats, and smart-home controls.
Performance calibration and safety verification
We run full heating cycles to confirm proper ignition, airflow performance, efficiency output, and safe combustion operation.
Final walkthrough and system orientation
We review system operation, maintenance requirements, and control settings so you get maximum performance and longevity from your investment.
Every system we install is engineered around your home — not pulled from a one-size-fits-all template. Our goal is to deliver a heating system that performs flawlessly, operates quietly, and complements the quality and scale of your home.
Call 203.335.9464 today to schedule a consultation, or request a custom quote.
Areas We Serve for Furnace Replacement & Installation
Alliance Heating & Air provides premium furnace replacement and installation throughout Fairfield County, Connecticut and Westchester County, New York. Our team installs high-efficiency heating systems every day in larger, high-value homes across this region, giving us deep familiarity with the architecture, ductwork designs, and heating demands specific to local properties.
From historic homes in Greenwich and New Canaan to large contemporary residences in Westport, Darien, Scarsdale, and Rye, we understand the unique challenges that come with installing modern heating systems in established, high-end neighborhoods. That local expertise allows us to design and install furnace systems that deliver consistent comfort, quiet operation, and long-term reliability — even in homes with complex layouts, multiple zones, or custom ductwork.
FAQs
How long does furnace replacement usually take in Fairfield or Westchester homes?
Most furnace replacements are completed in one day. Larger homes, custom ductwork, zoning systems, or complex integrations may take longer. We’ll always provide a clear installation timeline in advance so you know exactly what to expect.
Do you size the furnace based on my home or just replace the existing unit?
We perform a detailed heat-load analysis based on your home’s size, layout, insulation, and heating demands. This ensures your new furnace is properly sized for comfort, efficiency, and long-term reliability — not simply matched to your old system.
What type of furnaces do you install for larger or high-value homes?
We install premium, high-efficiency furnaces, including variable-speed and modulating systems designed for quiet operation and precise temperature control. These systems are ideal for larger homes, multi-level layouts, and properties with multiple zones.
Can you integrate a new furnace with my existing ductwork and zoning system?
Yes. We evaluate your ductwork, airflow balance, and zoning controls as part of the design process. If modifications are needed to improve performance or comfort, we’ll explain your options and handle the work as part of the installation.
Do you offer emergency furnace replacement if my system fails completely?
Yes. When a furnace fails unexpectedly, we can provide prompt replacement using top-tier systems designed for cold-weather performance. Our goal is to restore reliable heat to your home as quickly and seamlessly as possible.
Will a new furnace lower my energy costs?
High-efficiency furnaces typically reduce energy consumption compared to older systems. Many homeowners across Fairfield County and Westchester County see meaningful improvements in comfort consistency and operating efficiency after upgrading.
Do I need permits for furnace replacement in Connecticut or New York?
Yes. Furnace replacement generally requires permits and inspections. We handle all permitting and code compliance requirements for installations in both Connecticut and New York.
How do I know when replacement is a better option than repair?
If your furnace is older, experiencing frequent breakdowns, or has major component or safety issues, replacement may be the safer and more cost-effective option. We’ll explain exactly what we find and walk you through your real options without pressure.
Heating Systems We Service
At Alliance Heating & Air, we service, install, and maintain all major types of heating systems found in Connecticut and New York homes. Whether you’re looking for energy-efficient upgrades or need help with an existing unit, you can count on our team for expert solutions tailored to your system type. Learn more about each system below.
Gas Furnaces
Count on reliable and efficient heating by choosing a new gas furnace from Alliance Heating and Air. Many of today’s gas furnace models are more than 95% efficient, meaning they turn nearly all the natural gas they use into clean heat for your home.
Heat Pumps
Seeking an efficient way to heat and cool your home? For most homes in our area, a heat pump is the smart choice. They provide reliable, low-cost performance whether the August sun is beating down or a cold breeze is blowing off the Long Island Sound.
Ductless Mini-Splits
Ductless mini-split systems are ideal for bringing affordable cooling and heating to rooms and additions that don’t have ductwork, and for enhancing the system in places you need extra year-round comfort.
Air Handlers
Air handlers are designed to work in conjunction with forced-air heating and cooling systems, efficiently pushing the air to every corner of your home, delivering powerful performance, extra comfort, and efficient operation to keep your utility bills under control.
All-Electric Conversions
Electric heat pumps have become remarkably efficient, with the best models setting records for making the best use of energy. It’s hard to think of a home investment that will give you a better long-term return than all-electric heat.
Thermostats
Today’s new thermostats are surprisingly affordable and can help you take full advantage of your heating and cooling equipment’s efficiency. In other words, they can keep you more comfortable for fewer energy dollars.
Oil-To-Natural Gas Conversions
Switching to natural gas means more stable pricing, better energy efficiency, and cleaner air in and around your home. Alliance Heating and Air Conditioning can handle every step of the process for you, so you can focus on staying comfortable.
Oil-To-Propane Conversions
Switching from home heating oil to propane can deliver more stable pricing, greater energy efficiency, and lower energy costs without sacrificing your family’s comfort. Alliance Heating and Air Conditioning makes it easy for homeowners to make the conversion.
Great Reasons To Make Alliance Your Choice For Home Heating
Why should you turn to Alliance Heating and Air Conditioning instead of one of the many other companies throughout Connecticut and the New York suburbs? Just ask your neighbors. They’ll tell you why they trust our professional team with all of their home heating needs. A key reason local homeowners like to work with us is that they know we can handle everything related to heating – from installation of new heating systems, to repairs when your heater isn’t working right, to regular maintenance that reduces the potential for premature breakdowns. From Suffolk to Dutchess Counties and throughout Connecticut, we’ve also earned a reputation for treating our neighbors well.
Consider the many reasons to choose Alliance Heating and Air Conditioning for your home heating needs, including:
- Our team knows this area. This part of the Northeast has unique climate patterns, thanks to our proximity to Long Island Sound. We’re from here, so we know the weather and how local homes have been built.
- “Complete” means just that. We have the experience and resources to handle all of your home heating needs.
- Educated and skilled. Heating technology has improved a lot since we handled our first service call in 1979. We’ve kept pace with the many changes and regularly train our team to make sure they know all about the newest systems and methods.
- All brands, all models. It doesn’t matter what type or brand of heating your home has, because our professionals know how to fix them all!
- We’re here to stay. We’re not some national company trying to look local. This area is our home, and we’ve grown by taking great care of our neighbors. We love running into happy customers while we’re shopping at Big Y or ShopRite.
- We’re licensed and insured. We meet all state and local requirements and building codes, so you can trust the work we perform.
- We back our work. Not completely satisfied with anything we’ve done? We’ll do our best to make it right.
We Install Brands You Know & Trust
We don’t believe in attracting customers with sneaky discounts involving cheap, no-name equipment. The reason we can stand behind our work is that we recommend and install the top-quality brands and models that we know offer the greatest performance reliability. Our test for what we sell is pretty simple: if we wouldn’t want something in our home, we’re not about to install it in yours! Count on Alliance Heating and Air Conditioning to deliver the greatest comfort, highest efficiency, and the most reliability for your heating budget.
Call Today For Prompt Heating Help Throughout CT & NY
If your heater isn’t performing like it should – or if you’re ready to upgrade to a top-quality system – there’s no reason to delay. Contact the Alliance Heating and Air Conditioning team right now, and we’ll get to work to ensure your comfort and safety!
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