★★★★★
"Diagnosed on a Saturday, whole house filtration, well tank, 50% of my pipes, and hot water tank installed on Wednesday. Great service and well done, neat work!"
Water · Tankless
All the hot water. None of the tank.
Tankless Water Heater Installation & Repair in Rhode Island
Endless hot water, a smaller footprint and lower energy bills, installed, repaired and serviced by a Navien-certified Rhode Island crew.
(401) 601-5040
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Why Rhode Island homeowners go tankless
A tank water heater keeps a full tank hot around the clock, whether you're home or not, and when it's empty, you're taking a cold shower until it recovers. A tankless unit heats water only as it flows, on demand, so it never runs out and never burns fuel keeping a tank warm for nobody. In older Rhode Island homes where the water heater is eating a corner of a tight basement, going tankless can hand that space back too.
- Endless hot water: back-to-back showers, laundry and the dishwasher without a cold surprise
- 20+ year lifespan: roughly double a tank's, with serviceable parts instead of a rusting shell
- Lower energy bills: no standby loss from reheating a tank all day; often 20-30% less fuel for hot water
- Space savings: a wall-hung unit the size of a carry-on frees the floor a tank occupied
- Home value: an efficient, modern system buyers notice and appraisers credit
Tankless services we provide
- Installation: new tankless systems sized to your household's real peak demand
- Replacement: swapping a failing or undersized tankless unit
- Repair: ignition faults, error codes, flow and temperature problems, no hot water
- Maintenance: annual descaling and flushing, critical in Rhode Island's harder water
- Tank-to-tankless conversion: the full changeover, including gas and venting upgrades
The brands we install
We're a certified Navien installer. Their NPE tankless line is one of the most reliable, high-efficiency systems on the market, and factory certification means we install to spec and honor the long warranty. We service all major tankless brands, so if another company installed yours, we can still maintain and repair it.
Gas vs. electric tankless: which fits your home
| Gas tankless | Electric tankless | |
|---|---|---|
| Best for | Whole-home hot water, higher demand | Point-of-use, additions, smaller homes |
| Flow rate | High (5-10+ GPM) | Lower (2-5 GPM) |
| Upfront cost | Higher (gas sizing + venting) | Lower to install |
| Operating cost in RI | Lower where gas is available | Higher, RI electric rates run high |
| Venting | Required (sealed / direct-vent) | None |
| Electrical / gas needs | Adequate gas line + meter | Dedicated 240V circuits, panel capacity |
| Typical RI choice | Most common for whole-home | Cottages, additions, boosters |
Most Rhode Island whole-home conversions land on a gas unit for the flow rate and running cost; electric shines for a single bathroom, an addition or a seasonal cottage. We'll size it from your actual fixtures and tell you honestly which makes sense.
How a tankless install works
- 1. Assessment & sizing: we measure your peak hot-water demand and check gas, venting and electrical, then quote a flat price
- 2. Remove the old unit: the tank comes out and is hauled away
- 3. Upgrade the connections: gas line sizing, sealed venting, water and (for electric) the dedicated circuits, all to code
- 4. Mount & commission: the wall-hung unit goes in, we start it up, verify temperature and flow, and walk you through it
- 5. Permit & inspection: pulled and passed, with clean paperwork for your records
Tankless water heater replacement
If you already have a tankless unit and it has stopped keeping up, tankless water heater replacement is usually the last resort rather than the first move. These systems are built to be serviced, so an ignition fault, a flow sensor or a scaled heat exchanger is normally a repair, not a write-off. We will diagnose before quoting a replacement.
Where replacement does make sense is an undersized unit that was never right for the house, or one far enough through its life that repair costs stop making sense. Swapping tankless for tankless is a straightforward job, because the gas, venting and mounting are already in place.
Convert to tankless water heater from a tank
Most of our tankless work is conversion. The decision to convert to a tankless water heater is usually made in one of two moments: when a tank has just failed and you are weighing what replaces it, or when you are tired of the third shower being cold.
The conversion is more involved than a like-for-like tank replacement, because gas sizing and venting usually both need upgrading, and that is reflected honestly in the quote rather than discovered halfway through. What you get back is the floor space, the endless hot water, and a system with roughly double the service life.
Tankless water heater installation near you in Rhode Island
We install and service tankless systems across the whole state from our base in West Warwick. If you are searching for a tankless water heater near me anywhere in Rhode Island, from the northern towns down to the south coast, that is our area.
Financing available
A tankless conversion is an investment that pays back in lower bills and 20+ years of service. If you'd rather spread the cost, we offer financing through Wisetack, 0% terms up to 24 months for those who qualify, plus standard plans with interest. Checking your options takes a minute and doesn't affect your credit score.
How a rescue works
From your call to fixed, in four moves.
Signal 01, dispatch
You call. A person answers.
No phone tree, no callback queue. Describe the problem and we dispatch the nearest tech, same-day for most calls, immediately for emergencies.
Signal 02, diagnose
Upfront price before we open a wall.
The tech diagnoses on site, walks you through options, and quotes flat pricing before any work begins. You approve, or you don't. No surprises on the invoice.
Signal 03, fix
Fixed right, left clean.
Stocked vans mean most repairs finish in one visit. We protect floors, wear boot covers, and leave the space cleaner than we found it.
Signal 04, guarantee
Backed in writing.
Workmanship is guaranteed and every tech is licensed and insured in Rhode Island. If something isn't right, we come back. That's the whole policy.
No phone tag
Tell us what's going on.
Four fields, no account, no spam, a dispatcher reads it and calls you back. Emergency? Skip the form: (401) 601-5040 is answered 24/7.
Signals received
What Rhode Islanders say after the fix.
★★★★★
"SOS Plumbing gets a 5 Star review and I will be using Jacob and Nathan again. If you need a really good plumber, start here!!"
★★★★★
"Rocco and Ethan were polite, professional, and friendly, and explained everything. If I need more work, I hope they will be the ones to get sent."
Pulled from our 4.8★ Google profile, 300+ reviews.
Good questions
Asked before every tankless water heaters job.
How much does it cost to install a tankless water heater in Rhode Island?
It depends on whether you go gas or electric and what your home already has for gas sizing, venting and electrical. We diagnose on site and give you a flat, upfront price before any work starts, and financing is available through Wisetack, including 0% terms up to 24 months for those who qualify.
Is a tankless water heater worth it in Rhode Island?
For most households that value endless hot water and lower bills, yes. A tankless unit lasts 20+ years, roughly double a tank, and cuts the standby energy a tank wastes keeping water hot all day. In our harder water we recommend annual descaling to protect that lifespan.
How long do tankless water heaters last?
Typically 20 years or more with annual maintenance, versus 8-12 for a standard tank. Because the parts are serviceable, a tankless unit is usually repaired rather than replaced when something fails.
Can you convert my tank water heater to tankless?
Yes, tank-to-tankless conversion is a core service. We remove the old tank, upgrade the gas line and venting (or add the dedicated electrical for an electric unit), mount the new system, and handle the permit and inspection.
Do you service and repair Navien tankless units?
We do. We're a certified Navien installer, and we also repair and maintain other major tankless brands, including units another company installed.
Available across Rhode Island
This service, on your street.
We serve every town in Rhode Island. These are the ones with their own pages, see every service area.