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Heat · Navien certified
Navien systems, installed by the people Navien trained.
# Navien Boiler Installation in Rhode Island
High-efficiency condensing boilers and combis with endless hot water, installed and serviced by a certified Navien crew.
**4.8 ★** · 300+ Google reviews · Licensed & insured in RI · 24/7 live answer · Navien · Viessmann · Utica · Burnham certified
[(401) 601-5040](tel:+14016015040) 24/7, a person answers
[Call (401) 601-5040](tel:+14016015040) Speak with our team now
We'll contact you to schedule
[**$20 off any heating tune-up** Booked online](https://sosplumbingri.com/coupons/) [**Ask about the SOS maintenance plan** Plan members: priority scheduling · 15% off repairs](https://sosplumbingri.com/coupons/) [**Financing available** 0% up to 24 months for those who qualify](https://sosplumbingri.com/financing/)
## Why Navien keeps ending up on Rhode Island walls.
Walk our service routes and you'll see the pattern: the old floor-standing cast iron retires, and a wall-hung Navien takes over the corner of the basement, quieter, a fraction of the size, and sipping 20-30% less gas thanks to condensing technology that recovers heat the old unit sent up the chimney.
### The lineup we install
- **NCB combi series**: home heating plus endless on-demand hot water from one unit; the tank in the corner retires too
- **NFB heating boilers**: stainless heat exchangers, smart outdoor-reset controls
- **NPE tankless water heaters**: when it's the hot water, not the heat, that needs solving
### Certified matters with condensing equipment
High-efficiency systems are less forgiving of casual installation: gas sizing, condensate handling, venting and water chemistry all have to be right, or the efficiency and the warranty both suffer. Factory certification means we install to Navien's spec, commission with documented combustion analysis, and service what we install with [warranty-compliant annual maintenance](https://sosplumbingri.com/services/heating-boilers/boiler-maintenance/).
Not sure Navien fits your house? We'll run the sizing honestly. We install [what the numbers call for](https://sosplumbingri.com/services/heating-boilers/boiler-installations/), including Viessmann, where that's the better answer.
### How pricing works
- Flat price, approved by you before we open anything.
- The number you approve is the number on the invoice.
- Dispatch covers the trip and your first half hour on site.
Prefer to spread the cost? **0% financing up to 24 months, for those who qualify** through Wisetack, [see how financing works](https://sosplumbingri.com/financing/).
### Curious about endless hot water?
A sizing visit tells you exactly what a combi would do in your house.
[(401) 601-5040](tel:+14016015040)
- Certified Navien installer
- Factory-spec commissioning
- Warranty-compliant service
- Honest brand-agnostic sizing
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.
Pick a service, leave a number, and a dispatcher calls you back. No account, no spam. Emergency? Skip the form: [(401) 601-5040](tel:+14016015040) is answered 24/7.
Signals received
## What Rhode Islanders say after the fix.
★★★★★
"Jacob Katz always provides a timely, courteous, knowledgeable service."
Stephen D. · Google review
★★★★★
"Incredibly compassionate, fast-serving team! Same-day accommodation and quick, done-right-the-first-time service. Will absolutely call again when needed!"
Keira S. · Google review
★★★★★
"Two nice young men. Went right to work and fixed the leaking toilet. They cleaned up after themselves and out the door they went. Reasonably priced."
Kelly A. · Google review
Pulled from our [4.8★ Google profile, 300+ reviews](https://sosplumbingri.com/reviews/).
Good questions
## Asked before every navien boilers job.
What warranty comes with a Navien boiler?
Navien backs its residential heat exchangers with one of the longest warranties in the industry when installed and maintained to spec by a certified installer, which is exactly the paperwork our installs and annual service generate.
Combi boiler vs. separate boiler and water heater?
A combi wins on space, efficiency and simplicity for most 1-3 bath homes. Very heavy simultaneous hot-water use can favor separates. We size from your actual fixtures and habits and show you both numbers.
Is 'endless hot water' really endless?
Within the unit's flow rating, yes. It heats water as it passes rather than storing a tankful. Three showers back-to-back-to-back never go cold; three showers at the same instant depend on sizing, which is what our visit sorts out.
Can a Navien replace my oil boiler?
That's a classic oil-to-gas conversion, and we do them end to end, gas coordination, venting, condensate, permits and haul-away of the old tank equipment where required.
Available across Rhode Island
## This service, on your street.
[Service area**Plumber in Narragansett, RI**](https://sosplumbingri.com/service-areas/narragansett/)[Service area**Plumber in Richmond, RI**](https://sosplumbingri.com/service-areas/richmond/)[Service area**Plumber in Charlestown, RI**](https://sosplumbingri.com/service-areas/charlestown/)[Service area**Plumber in Newport, RI**](https://sosplumbingri.com/service-areas/newport/)[Service area**Plumber in East Greenwich, RI**](https://sosplumbingri.com/service-areas/east-greenwich/)[Service area**Plumber in Cranston, RI**](https://sosplumbingri.com/service-areas/cranston/)
**We serve every town in Rhode Island.** These are the ones with their own pages, [see every service area](https://sosplumbingri.com/service-areas/).
[The hub**Heating & Boilers**](https://sosplumbingri.com/services/heating-boilers/)[Also see**Boiler Replacement**](https://sosplumbingri.com/services/heating-boilers/boiler-replacement/)[Also see**Oil to Gas Conversion**](https://sosplumbingri.com/services/heating-boilers/oil-to-gas-conversion/)
## Whatever's leaking, clogged or cold, send the signal.
[Call (401) 601-5040](tel:+14016015040)
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