One compact unit for whole-home heat and endless hot water. We repair, service and install Navien NCB and NFC combi-boilers across Nassau & Queens — available 24/7.
A Navien combi-boiler replaces both your boiler and water heater with a single wall-hung unit — saving space and delivering on-demand hot water that never runs out. Correct sizing and installation are critical to getting that performance, which is why homeowners across Long Island trust our authorized team for combi-boiler service and installs.
Fast, certified diagnosis and repair — emergency no-heat and no-hot-water calls answered 24/7.
Annual tune-ups and flushes that protect efficiency, prevent breakdowns and keep your warranty valid.
Authorized Navien installation sized right for your home — clean, code-compliant and warranty-protected.
Up to 95% AFUE from one unit that handles both heat and hot water — high performance, lower bills.
A stainless steel heat exchanger and compact wall-hung design that saves up to 80% of the space.
Wi-Fi connectivity and an easy-to-use control interface.
Whole-home heat and on-demand hot water that never runs out — from a single unit.
A Navien combi-boiler supplies both central heating and on-demand domestic hot water from a single wall-hung unit — enough hydronic heat for a whole house plus hot water that never runs out. It's the space-saving upgrade Long Island homeowners love.
Compared with a floor-standing boiler paired with a separate hot-water tank, a Navien combi-boiler takes roughly 80% less space — freeing up your basement or utility closet while delivering higher efficiency.
Need more capacity? Navien combi-boilers can be cascaded with a Navien NPE tankless water heater for extraordinarily large hot-water demand — ideal for big homes, multi-bath households and light commercial use.
Up to 95% AFUE, ENERGY STAR certified and backed by up to a 10-year heat-exchanger warranty, with an elegant, clean appearance and easy-to-use controls — a smart choice whether you're replacing old equipment or building new.
Browse the complete Navien catalog with model numbers and specs, then call us for expert sizing and a free quote.
From first call to final check, we make Navien service easy.
Reach us 24/7 by phone or the online form. Tell us your Navien model and what's happening.
A certified tech pinpoints the issue fast and explains your options with straightforward pricing.
We complete the repair, service or installation neatly — protecting your manufacturer warranty.
We confirm everything's running right and set you up for worry-free heat and hot water.
Upgrade to a high-efficiency Navien system now and pay over time — with no interest. Ask us about flexible financing on qualifying repairs and installations.
I have nothing but good things to say about this company and their employees! I needed emergency service at 4am and they responded within a half hour! And even at that early morning hour they were pleasant and efficient! I have since signed up for a service contract with them and am confident that the excellent service will continue.
Used them for over 6 years. Very neat professional installation and when I did have a problem they have been very responsive. Brian and his crew are professional and easy to deal with. Highly recommend!
I have been using this company for years and have recommended them to all my friends and family that needed this type of service. Have not had one person complain I gave them a bad recommendation. Great company - Great Service - Great Workers!
We cover 53 towns across Long Island. Find yours on our service-area page.
Tell us what you need and we'll get right back to you. No heat or hot water? Check the emergency box and call now.