Do I need new ducts for a new furnace?

Not always. Ask the contractor to show what your existing ducts can carry against the new unit's airflow.

What does a load calculation check?

NYSERDA says it measures walls, windows, roof and floor, estimates insulation and can include a blower door test.

Why is one room still uneven after a new system?

Often oversizing or a run that cannot deliver. Ask for both checks before more equipment.

Does the energy code reach duct work?

New duct work done as part of an alteration goes to the code's sizing section. Ask how your quote follows it.

Ductwork in Marcellus

Ducts that no longer fit your Marcellus house

Claim $100 off your first jobAsk your questions first. Book only if the quote holds up. (315) 640-3590 Tap to call

Once your Marcellus duct job is booked through us, $100 off your first job is credited.

A new system on tired ducts moves the bottleneck without removing it. Ask what your air path can carry before you price equipment, then send us your address.

Galvanized rectangular duct trunk with round takeoff collars under basement joists beside a stone wall, one insulated flex line hanging down

Local facts

Here in Marcellus

At a glance

Kind: Village
House age group: Median home built 1940 to 1969

In a village where 81.5 percent of homes predate 1980, the duct plan was drawn for a different house than yours.

Stack of galvanized sheet-metal duct sections and round collars on a basement floor in front of a stone wall

The worksheet

Start your ductwork worksheet in Marcellus

Ask on every quote	Quote A	Quote B	Quote C
1A load worksheet for your house	Quote A answer	Quote B answer	Quote C answer
2How the new unit will vent	Quote A answer	Quote B answer	Quote C answer
3What happens to the water heater	Quote A answer	Quote B answer	Quote C answer
4Duct or pipe changes, listed one by one	Quote A answer	Quote B answer	Quote C answer
5Who pulls the permit	Quote A answer	Quote B answer	Quote C answer
6What is removed and hauled away	Quote A answer	Quote B answer	Quote C answer
7A start date and a payment schedule	Quote A answer	Quote B answer	Quote C answer

We tell you what to ask before anyone prices a new system, then introduce a local contractor who does the work.

Start your worksheet

Tell us about the house and the system. You get the three questions, and a local contractor only if you say yes.

Credit: $100 off your first job

The $100 comes off once your installation is booked through us.

We fund the $100; the contractor's quote is unchanged.
One credit per customer at each property.
Book the job by December 31, 2026.
Mention the credit when you book.

Ask about the $100 credit How the credit works

Start-up sheet terms

Spec FAQ

Before you call about ductwork in Marcellus

You ask	Short answer
Do I need new ducts for a new furnace?	Not always. Ask the contractor to show what your existing ducts can carry against the new unit's airflow.
What does a load calculation check?	NYSERDA says it measures walls, windows, roof and floor, estimates insulation and can include a blower door test.
Why is one room still uneven after a new system?	Often oversizing or a run that cannot deliver. Ask for both checks before more equipment.
Does the energy code reach duct work?	New duct work done as part of an alteration goes to the code's sizing section. Ask how your quote follows it.

This fits when

Signs the ductwork job is due in Marcellus

A room that never evens out A bedroom at the end of a long run is the classic sign of an undersized branch.
A kitchen or garage turned living space Ask whether a converted room is tied into a trunk that was drawn for fewer rooms.
A new unit on the old trunk A bigger machine cannot push air through a trunk that was never sized for it.
A bid with no air figures A price per foot with no airflow numbers has not been measured against your house.

Gloved hand pulling a yellow tape measure along a painted window frame

Houses of 1952 and 1963 and the ducts behind the walls

The village median is 1952 and the town median is 1963, and 38.4 percent of village units predate 1940. Many of these houses have been changed since: a finished basement, a second-floor bath, a converted garage. Each change alters how much air a room needs, but the trunk may not have changed with it.

NYSERDA links oversizing to uneven air temperatures through the house. So if the trouble is a cold room, ask for the load worksheet before you accept new ducts as the cure. The load and the duct plan should agree, and you should be able to see both on one page before you sign.

Tell us the house and the system.

Ask about it

Take the contractor from room to room and name every one that feels wrong. Ask for each to appear on the worksheet with the air it should get, since a room missing from the paper gets no fix.

Basis: American Community Survey 2020-2024 5-year estimates, table Energy Conservation Construction Code of New York State 2020,

New duct runs and the energy code's sizing section

Under the New York Energy Code, new heating, cooling and duct systems added in an alteration must meet Section R403, which holds the sizing rule. The code defines an alteration to include a change to a mechanical or gas system's original type. New duct work in an older house is not exempt from that rule.

Ask your contractor, "What can my ducts carry?" and request the room-by-room air figures behind the answer. NYSERDA describes the real calculation as counting wall, window, roof and floor areas, with a blower door test as an option.

Permit and paper for duct work at your address

The Town of Marcellus codes office lists furnace installation as needing a building permit. The list does not say whether duct work alone needs one, or whether the village has its own office. Ask both, write down the answers, and keep the worksheet and layout in your contract folder so a second bid can be compared on equal terms. Send us your address when you want to meet a contractor for this.

Tell us the house and the system.

Ask about it

Ask for the new duct drawing in your hands before the work starts. If a room is on the plan with an air figure beside it, you have something to check the finished job against. If it is not on the plan, say so before you sign, and ask the contractor to add it.