Heating
Heating in Rochester, NY
Furnaces and boilers installed right, the first time.
Whether you need a high-efficiency furnace replacement, a boiler upgrade, or ductless heating for an addition, 4th Gen Mechanical installs systems sized correctly for your home -- not the one that fits the truck. Monroe County's old housing stock requires experience with steam boilers, undersized ductwork, and oil-to-gas conversions. We've seen all of it.
Recent heating work


What we offer
What's included.
- High-efficiency gas furnace installation and replacement (96% AFUE)
- Steam boiler and hot water boiler replacement
- Oil-to-gas and oil-to-heat-pump conversion
- Ductless mini-split heating for additions, garages, and un-served rooms
- High-velocity mini-duct systems for homes without conventional ductwork
- Smart thermostat installation and programming
Credentials
Certified for this work.
Our process
How it works.
System Evaluation
We inspect your existing heating system, ductwork (if applicable), and home insulation. We check for common problems that affect new system performance: undersized ducts, inadequate returns, and poorly-sealed distribution systems.
Equipment Selection
We recommend equipment based on your home's heat load, fuel availability, and budget. We carry multiple brands and won't recommend a replacement system just because it's what's on the truck.
Installation
Most furnace replacements complete in one day. Boiler replacements and major system changes typically take 1-2 days. We handle all permits and inspections.
Startup and Testing
We verify combustion efficiency, static pressure, and heat delivery to every register or radiator before leaving. You get a written startup report and a review of thermostat controls.
Service cities
Heating service near you.
We serve all 10 cities in Monroe County and the western Finger Lakes. Find your city below for local details.
Recent install
High-efficiency furnace replacement — Greece
Real install photos and project writeups coming as we expand the site. In the meantime, you can read what Monroe County homeowners say about our work.
FAQ
Common questions.
- How long does a furnace last in Rochester, NY?
- A well-maintained high-efficiency furnace lasts 18-25 years in Rochester homes. Systems that run frequently -- as they do in upstate New York winters -- benefit significantly from annual tune-ups that catch issues before they become system failures.
- What AFUE rating do I need for a Rochester furnace?
- We recommend 96% AFUE minimum for Rochester's cold winters. High-efficiency condensing furnaces use noticeably less gas than the 80% AFUE units common in older Monroe County homes. 80% units also vent through sidewalls, which can cause ice issues in heavy winters -- another reason to go high-efficiency.
- Should I replace a 20-year-old furnace?
- If your furnace is 20+ years old and the repair cost is approaching the cost of a replacement, replacement is usually the better financial decision. New 96% AFUE systems use significantly less fuel than a 20-year-old unit, and even more vs one that has degraded over time. We will give you an honest assessment when we come out.
- Can you replace a boiler in an old Rochester home?
- Yes. We specialize in boiler replacements in Rochester's older housing stock -- Park Ave, South Wedge, East Avenue, and similar neighborhoods where steam and hydronic systems are common. We match the replacement boiler to your existing distribution system and radiators.
- How much does a furnace replacement cost in Rochester?
- Cost depends on system size, efficiency level, ductwork modifications, and where your existing equipment is located. We provide free, written, no-pressure estimates so you see the full breakdown for your home — no fabricated ranges.
Related services
You might also need.
Cut your heating bill -- let's get you a quote.
Whether it’s a tune-up, a new install, or a full geothermal upgrade — free estimates, honest advice.