Furnace Installation in Roanoke, VA
A new furnace here will run from October through April every year. Tell us about the house, and a licensed contractor who covers Roanoke will get in touch.
Tell us about the job
It takes about a minute.
Roanoke asks a lot of a furnace
Your furnace will run October through April here, seven months of the year. Winter nights average 29°F, so on most of those nights the burner is cycling on and off well past dark. That kind of use adds up over a system's life, and it's worth putting in a furnace built to handle it from the start.
Any new gas furnace installed now has to reach at least 80.0 percent AFUE, so that part is settled by federal rule. Power is the bigger question here. Roanoke has seen 19 winter storms and 34 damaging wind events over the past ten years, and statewide, 22 percent of households lost power for at least 24 hours in 2024. A furnace with a standing pilot keeps working through an outage. One with electronic ignition needs power to light, and comes back on its own once power returns.
- 7 months
- October through April, your furnace is on duty
- 29°F
- the average winter night it heats against
- 80% AFUE
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Virginia requires HVAC contractors to hold a state license.
The Board for Contractors tests and licenses the contractor, not the specific job. That license stays tied to the business, covering everything from a small repair call to a full system swap. Virginia carves out an exception for work under $1,000, but a furnace installation runs well past that line, so the contractor doing this job should hold that license.
In most cities and counties, a furnace installation also needs a permit from the local building office, with an inspection once the work is done. The license says who is allowed to do the job. The permit and inspection are a separate check on the job itself.
Sources: Virginia General Assembly · Virginia Department of Professional and Occupational Regulation
- What size furnace does my house need?
- The right size comes from a load calculation, not the square footage of your house alone. A contractor measures your walls, windows, insulation and ceiling height and works out how much heat your house loses on a cold night. Guessing at size, or matching the old furnace without checking, is how you end up with a furnace that short cycles or one that runs constantly and never quite gets the house warm. With winter lows here averaging 29°F, sizing it right matters more than picking the biggest unit you can find.
- How do I know it's time to replace my furnace?
- If your furnace is struggling to keep up, cycling on and off more than it used to, or needing repairs every winter, it is worth having someone look at whether replacement makes more sense than another fix. Furnaces that need to run seven months a year here, October through April, put in more hours than in milder places, and that wear shows up sooner. Rising gas bills with no other explanation, uneven heat between rooms, and a furnace that is past the age your contractor considers normal for its type are all signs worth having checked.
- Is a high-efficiency furnace worth it?
- Every new gas furnace sold today has to reach at least 80 percent AFUE, so the question is really whether it makes sense to go higher than that. A high-efficiency furnace turns more of the gas you burn into heat in the house rather than sending it out the flue. With heat running seven months of the year here, that difference adds up over a heating season. A contractor can walk through the options for your house and tell you what fits, since venting for a high-efficiency furnace is different from a standard one and not every home is set up for it without changes.