Tankless Water Heater Replacement in Bristol, CT
GLV Plumbing provides expert tankless water heater replacement services across Bristol, CT, ensuring your home has efficient hot water.
- Licensed Gas Line Technicians
- Code Compliant
- Transparent Pricing
- Expert, Licensed Plumbers
Endless Hot Water Starts With One Call in Bristol, CT.
Call GLV Plumbing today for a free estimate on your tankless water heater replacement.
Your Trusted Source for Tankless Water Heater Replacement in Bristol, CT
GLV Plumbing specializes in professional tankless water heater replacement across Bristol, CT. If your current tankless unit is past its prime, frequently breaking down, or simply not meeting your hot water demands, it might be time for an upgrade. We handle every step of removing your old unit and installing a brand new, energy-efficient model.
Our expertise includes:
- Proper venting and condensate drainage system setup.
- Accurate sizing and model selection for your home.
- Condensing unit installs with PVC venting and condensate neutralizers

Additional Plumbing Replacement Services in Bristol, CT
When repairs are no longer enough, our replacement services in Bristol, CT deliver durable upgrades that restore full performance.

Customers
Why Choose GLV Plumbing for Tankless Water Heater Replacement in Bristol, CT?
Choosing the right plumbing partner for your tankless water heater replacement is key for long-term performance and peace of mind. We bring years of experience directly with these advanced systems.
- Energy Savings, Tankless water heaters only heat water when you need it, which can significantly reduce energy use compared to traditional tank models, a big plus for Connecticut utility bills.
- Endless Hot Water, Never run out of hot water, even during peak demand, a true luxury for busy Bristol households with multiple showers or large families.
- Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting into the pipes.
Citywide Coverage
We replace tankless water heaters in every neighborhood of Bristol, from newer builds with garage-mounted units to older homes converting from a tank. Our trucks carry venting kits and gas fittings for both indoor and outdoor installs.
Experienced Team
Our technicians have pulled and replaced tankless units from Rinnai, Navien, Noritz, Takagi and Rheem, so they know the quirks of each brand's error codes and mounting brackets. They also know which older units can be matched to existing venting and which need new runs.
Safety-First Approach
We perform careful safety checks after every tankless water heater replacement, including leak detection for gas lines and proper ventilation. You can rest assured your new system is safe and compliant with Connecticut regulations.
Trusted Certified Bristol Plumbing Services Professionals
At GLV Plumbing, we take pride in providing licensed, certified plumbing services throughout Bristol, CT. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationExpert Tankless Water Heater Replacement Services in Bristol, CT
Tank to Tankless Conversions in Bristol, CT
Converting from a 40 or 50 gallon tank to tankless frees up floor space and ends standby heat loss in a garage or closet. The catch is that tankless units usually need a larger gas line, often three quarter inch or bigger, plus new venting. We evaluate your meter size and pipe run before quoting so there are no surprises mid-job. We also cap or reroute the old flue and seal the roof penetration if it is no longer used. Plan for a conversion to take a full day.

Recirculation Tankless Upgrades in Bristol, CT
If you are tired of running the tap waiting for hot water, a tankless with a built-in recirculation pump can bring heat to the fixture in seconds. Navien A series and Rinnai units with internal pumps can use a dedicated return line or a crossover valve under the farthest sink. We program schedules so the pump runs only during your morning and evening peaks. That keeps gas use in check while saving thousands of gallons of wasted water a year. This upgrade is a favorite in long single-story ranch homes.
Emergency Tankless Replacement in Bristol, CT
A tankless heater that leaks from the heat exchanger or refuses to ignite can leave you with no hot water at all. We offer same-day emergency replacement for common models and can often get a unit installed the day you call. If your exact model is not in stock, we can sometimes do a temporary repair to restore hot water while the replacement ships. We shut off gas and water to stop any leak as soon as we arrive. Call (860) 487-7330 any time your tankless quits.
Tankless vs. Tank Water Heater Replacement Cost in Bristol, CT
When considering tankless water heater replacement in Bristol, CT, it is natural to compare costs. While the initial installation of a tankless unit can be higher than a traditional tank, the long-term energy savings and longer lifespan often make it the more economical choice. We provide clear, upfront pricing for both options. That helps you make an informed decision based on your budget and hot water needs, with no surprises.
Rinnai Tankless Water Heater Replacement in Bristol
Rinnai is a leading brand in the tankless water heater market, known for its quality and engineering. If your Rinnai unit is aging or acting up, GLV Plumbing provides expert Rinnai tankless water heater replacement in Bristol. We make sure your new Rinnai unit is installed correctly, maximizing its efficiency and lifespan. Our technicians know the installation requirements and venting options for Rinnai models, so the upgrade goes cleanly.
Commercial Tankless Replacement in Bristol
Restaurants, salons and small offices often use multiple tankless units linked together on a rack system. When one or more units fail, we replace them and rebalance the cascade controls so they split the load. We check gas pressure under full demand, since commercial racks can draw more than 600,000 BTU combined. Scheduling is flexible, so we can work after hours and keep your business open. We also set up a descaling schedule matched to your water usage.
Electric Tankless Water Heater Replacement in Bristol, CT
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a viable choice. GLV Plumbing offers electric tankless water heater replacement services in Bristol, CT. This often involves careful assessment of your home's electrical panel capacity, as these units require substantial amperage. We make sure your new electric tankless unit is installed safely and correctly, providing on-demand hot water without the need for gas lines.

Commercial Tankless Water Heater Replacement in Bristol, CT
Businesses in Bristol, CT often require robust hot water solutions, and tankless systems can provide the efficiency and capacity needed. We specialize in replacing commercial tankless units for restaurants, offices and other facilities with minimal disruption to your operations. Our plumbers are skilled with high-capacity models and complex plumbing layouts. We deliver a reliable hot water supply that meets your business's demands and health code requirements.
Tankless Water Heater Replacement Near Me in Bristol, CT
If you are searching for tankless water heater replacement near me in Bristol, CT, GLV Plumbing is your local expert. Our service area covers the whole region, so a professional plumber is always close by when you need a new, efficient hot water solution. We pride ourselves on quick response times and reliable service for all tankless installations.
When your tankless unit needs replacing, you want a reliable local company. We pride ourselves on being the go-to choice for tankless water heater replacement near me in Bristol, offering reliable solutions and upfront pricing to our neighbors throughout the community.
GLV Plumbing at a Glance
- Fully licensed plumbing team covering Bristol, CT
- Same-day appointments and 24/7 emergency response
- Clear written estimates, no hidden fees
- 4.8-star rated by 946+ Connecticut customers
Bristol Map
Bristol Information
- Population
- 61,601
- Area codes
- 860/475/203
- Service area
- Bristol and communities within 40 miles
- Nearby
- New Britain, Waterbury, West Hartford, Meriden
Public water in most of Connecticut runs soft to moderately hard, and soft water can be slightly corrosive to older copper plumbing. Scale builds inside tankless heat exchangers over time, so a properly sized replacement with flush valves helps protect homes in Bristol, CT from early failures.
Expert Services
Trust our professionals for reliable GLV Plumbing solutions in Bristol, CT.
Our Specialized Plumbing Services in Bristol, CT
At GLV Plumbing, we provide a complete range of plumbing services across Bristol, CT. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Replacement Process Works in Bristol, CT
We follow a tested method for every tankless water heater replacement in Bristol, from initial assessment to final testing, for a quality installation.
Request a Quote
Call (860) 487-7330 with your current model number and a photo of the install. We give you a rough price and schedule a visit.
Size and Inspect
Our tech measures gas line size, meter capacity, venting path and water hardness. We recommend a unit that matches your hot water demand.
Install and Test
We remove the old heater, install the new one with service valves and venting, then test gas pressure and combustion. You get a walkthrough on settings and flushing.
Frequently Asked Questions About Tankless Water Heater Replacement in Bristol
The cost for tankless water heater replacement in Bristol, CT usually ranges from $3,000 to $6,000, depending on the unit's brand, capacity, fuel type (gas or electric) and any needed changes to gas lines, electrical or venting. This estimate includes both the new unit and professional installation. We always provide a detailed quote upfront after assessing your needs.
Often yes, especially when converting from a tank. Many tankless units need three quarter inch gas pipe and a meter that can supply 199,000 BTU on top of your furnace, range and dryer.
We install Navien, Rinnai, Noritz, Takagi and Rheem tankless heaters. Each has its own strengths, and we recommend based on your flow needs, venting options and budget.
Yes, you can certainly replace a traditional tank water heater with a tankless unit. This is a common upgrade for homeowners seeking better energy efficiency and endless hot water. However, it often requires changes to gas lines, venting and possibly electrical wiring, making professional installation important for safety and performance.
GLV Plumbing installs and replaces all major reputable brands of tankless water heaters. Our preferred brands include Rinnai, Navien, Noritz and Rheem, as they are known for their reliability, energy efficiency and long-term performance. We can also order and install other brands based on your preference or home requirements.
A direct swap typically takes four to six hours. A tank to tankless conversion with new gas and venting typically takes a full day.
New tankless water heaters usually come with a manufacturer's warranty on the heat exchanger, usually 10 to 15 years, and on parts, usually 3 to 5 years. GLV Plumbing also provides a warranty on our installation workmanship. We will go over all warranty details with you before your replacement so you understand your coverage.
We do not recommend it. Gas line sizing, venting clearances and combustion testing require training, and improper installs can void the warranty or create carbon monoxide hazards.
What People Are Saying About Our Plumbing Experts?

Patricia H.
We had a slab leak that two other companies could not find. GLV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Hartford, CT
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Waterbury, CT
James P.
Our commercial plumbing system had a leak under the sink, and GLV Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Waterbury, CT
Daniel K.
A pipe burst at 11 pm and they actually answered. The plumber showed up within the hour, shut everything down, and had us back to normal the next morning. Could not ask for more.
Emergency Plumbing · West Hartford, CT
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · West Hartford, CT
Emily R.
I called GLV Plumbing for plumbing repair, and the technician was fast, polite, and thorough. They explained the problem clearly and fixed it the same day. I will definitely hire them again. Highly recommended!
Plumbing Repair · New Britain, CT













