What is the difference between a traditional and a tankless water heater?

A traditional tank stores and reheats a set amount of hot water. A tankless unit heats water on demand, so you get continuous hot water without a bulky tank taking up space in your basement or utility closet.

How do I know what size tankless water heater I need?

Sizing depends on your household's peak hot water demand, meaning how many showers, dishwashers, or washing machines might run at once. We assess your home's usage before recommending a unit.

How long does tankless water heater installation take?

Most installations are completed in a single day , though homes converting from a traditional tank may need extra time for venting and gas line adjustments.

Why does my tankless water heater need regular flushing?

Connecticut's water contains minerals that accumulate inside the unit over time. Routine tankless water heater maintenance in Fairfield flushes out that buildup so your system keeps running efficiently.

Should I repair or replace my tankless water heater?

Units under 10 years old are usually worth repairing. If your system is approaching 15 to 20 years old or needs frequent repairs, replacement often makes more financial sense.

What does the Neighborly Done Right Promise ® cover?

The Neighborly Done Right Promise ® backs our tankless water heater repair and installation , giving you added confidence that the job was done right.

Do you offer financing for tankless water heater installation?

Yes . We offer financing through GoodLeap and Service Finance , so a new tankless system can fit comfortably into your budget.

How much does tankless water heater repair cost in Fairfield?

Cost depends on the issue and your unit's make and model . We provide upfront pricing before any repair work begins, so there are no surprises.

Can you service both gas and electric tankless water heaters?

Yes , our technicians are experienced with both gas and electric tankless systems, including units installed in older Fairfield homes with limited space.

How often should I schedule tankless water heater maintenance?

Most manufacturers recommend annual flushing , though homes with harder water may benefit from more frequent tankless water heater maintenance in Fairfield.

Tankless Water Heater Repair & Installation in Fairfield, CT

Endless Hot Water, Without the Bulky Tank

Nothing ruins a busy Fairfield morning faster than your tankless water heater flashing an error code mid-shower. Whether mineral buildup is causing sudden cold-water sandwiches or your system needs a complete high-efficiency replacement before work and school routines start, we’ve got you covered.

Our award-winning technicians deliver fast, precise tankless unit repairs and 24/7 emergency service, 24-hour scheduling, and replacements backed by the Neighborly Done Right Promise^®.

Contact us today to request a free estimate and schedule your tankless repair or replacement.

Endless Hot Water, Without the Bulky Tank

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Why Fairfield Homeowners Trust Us With Their Tankless Systems

Our family-owned, BBB A+-rated team uses boot covers, tarps, and clean workspaces on every visit. Backed by nearly two decades of local trust and named 2024 Neighborly Franchise of the Year, we treat your home like our own.
You will know who is coming to your home and when. We send text updates, including a photo of your technician, so you never have to guess while you wait for your tankless water heater repair in Fairfield.
We walk you through the diagnosis in plain language and share the cost before any work begins. No inflated quotes, and no pressure to buy more than your tankless system actually needs.

Our Process: What to Expect During Your Tankless Unit Service

Every tankless water heater service in Fairfield follows the same clear process, whether you are dealing with a sudden shutdown on a busy morning or planning a full system upgrade for your home before the next cold snap.

Quick Scheduling: We get you on the calendar fast, often the same day, so you are not stuck waiting around for hot water to come back.
Technician Introduction: Your technician introduces themselves and sends a photo ahead of time, so you always know exactly who is at your door before they arrive.
Transparent Diagnosis: We inspect your tankless unit from top to bottom and explain, in plain English, what is wrong and what your realistic options are, without any pressure to decide on the spot.
Efficient Part Ordering: If a part is needed, we source it quickly through trusted suppliers to keep your project moving instead of sitting on a waitlist for days at a time.
Expert Installation: Our technicians complete the repair or installation with care, following manufacturer specifications for your specific make and model, whether it runs on gas or electric and regardless of how tight the space is.
Thorough Cleanup: We protect your floors with tarps and boot covers, then leave your home as clean as we found it, or cleaner, before we consider the job finished.
Final Education: Before we leave, we walk you through your new or repaired system so you understand how it works, how to maintain it, and what signs to watch for as the years go by and the seasons change.

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Our Process: What to Expect During Your Tankless Unit Service

The Benefits of Partnering With a Professional HVAC Company in Fairfield

When your home's comfort is on the line, you deserve a team you can trust. Here is why local homeowners consistently choose us for all their heating, cooling, and water heating needs:

24/7 Service & Scheduling: Text, chat, or book in real time, even on evenings, weekends, and some holidays.
Vetted, Trusted Technicians: Every team member is background-checked and drug-tested before ever setting foot in your home.
Hassle-Free Warranty Management: We handle your system’s warranty registration and honor manufacturer coverage so you don't have to chase paperwork.
Full Insurance Protection: We carry full workers' compensation coverage to protect you and your home while we work.
Ongoing Support: Reachable by phone, text, or email long after the job is done, ensuring your follow-up questions are always answered.

Tankless Water Heater Service Backed by the Neighborly Done Right Promise^®

When you choose us for tankless water heater repair and installation in Fairfield, your investment is fully protected. Every job is backed by the Neighborly Done Right Promise^®, our commitment to standing behind our work long after the technician leaves your home.

Plus, with flexible financing available through GoodLeap and Service Finance, upgrading to a high-efficiency tankless system fits comfortably into your monthly budget without draining your savings all at once.

The Aire Serv Advantage

From tune-ups and maintenance to heater repair and air conditioning replacement, we provide services that keep the air you breathe clean and keep your home or business at the perfect temperature.

Guaranteed Upfront Pricing

We quote by the job not the hour, so you know the final price won't change with no hidden fees.
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The Neighborly Done Right Promise^®

We'll get the job done right and ensure you are happy with our work.
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We Treat Your Home Like Our Own^®

Expertly trained, background checked, and committed to respecting your home and putting you first.
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Anytime Customer Service

We're here for you 7 days a week, 365 days a year, and we always take extra precautions to safeguard your home during our visits.
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Aire Serv of SWC

We install and repair tankless water heaters throughout Fairfield, from the harborside homes of Southport to the condos and apartments near Tunxis Hill and the university area. Homeowners along Fairfield Beach and throughout Southwest Connecticut, including Bridgeport, Stratford, Trumbull, Milford, and Norwalk, rely on us for tankless water heater service in Fairfield and the surrounding shoreline towns.

HVAC Services in SWC and Surrounding Areas

From complete repairs and replacements to routine maintenance, our technicians handle every water heating system with meticulous detail. Regular flushing and maintenance clear out Fairfield’s hard water mineral buildup, keeping both traditional and tankless systems running at peak efficiency in homes old and new.

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Tankless Water Heater FAQs in Fairfield, CT

A traditional tank stores and reheats a set amount of hot water. A tankless unit heats water on demand, so you get continuous hot water without a bulky tank taking up space in your basement or utility closet.
Sizing depends on your household's peak hot water demand, meaning how many showers, dishwashers, or washing machines might run at once. We assess your home's usage before recommending a unit.
Most installations are completed in a single day, though homes converting from a traditional tank may need extra time for venting and gas line adjustments.
Connecticut's water contains minerals that accumulate inside the unit over time. Routine tankless water heater maintenance in Fairfield flushes out that buildup so your system keeps running efficiently.
Units under 10 years old are usually worth repairing. If your system is approaching 15 to 20 years old or needs frequent repairs, replacement often makes more financial sense.
The Neighborly Done Right Promise^® backs our tankless water heater repair and installation, giving you added confidence that the job was done right.
Yes. We offer financing through GoodLeap and Service Finance, so a new tankless system can fit comfortably into your budget.
Cost depends on the issue and your unit's make and model. We provide upfront pricing before any repair work begins, so there are no surprises.
Yes, our technicians are experienced with both gas and electric tankless systems, including units installed in older Fairfield homes with limited space.
Most manufacturers recommend annual flushing, though homes with harder water may benefit from more frequent tankless water heater maintenance in Fairfield.