Service area · Warren County

Chimney Services in Blairstown, NJ

About one Blairstown home in five was built before 1940, and two thirds of homes heat with fuel oil. If you are buying here, the chimney is one of the systems worth understanding before you close.

Colonial-style house with a brick chimney and lawn
On this page
  1. Chimney profile
  2. What the numbers suggest for chimneys in Blairstown
  3. What a buyer should find out before closing
  4. Your first year with the chimney
  5. Local questions
  6. Sources

Chimney profile: Blairstown

Census estimates for 2,177 housing units (2,114 occupied).

When homes were built

  • Before 1940 21%
  • 1940–59 7%
  • 1960–79 33%
  • 1980–99 28%
  • 2000 or later 11%

How occupied homes are heated

  • Utility gas 6%
  • Fuel oil 67%
  • Electricity 15%
  • Propane 7%
  • Wood 3.1%
  • Other or none 2%

Type of housing

  • Single-family, detached 92%
  • Single-family, attached 2%
  • 2–4 units 5%
  • 5+ units 1%

Source: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, tables B25034, B25040 and B25024, via Census Reporter. Estimates have margins of error; small categories are approximate.

What the numbers suggest for chimneys in Blairstown

Census estimates date about 21% of Blairstown's 2,177 housing units to before 1940. Another 7% were built from 1940 to 1959, 33% in the 1960s and 1970s, 28% from 1980 to 1999 and 11% since 2000. Older houses may have chimneys that were altered over the years, with flues added, relined or closed off, and the older-home chimney guide describes what tends to change.

About 67% of the 2,114 occupied homes heat with fuel oil, 15% with electricity, 7% with propane, 6% with utility gas and 3.1% with wood. For most buyers, that means the main question is the heating flue: what it is lined with, how it has held up and whether it suits the boiler or furnace that uses it now. CSIA explains that oil soot carries sulfur, and once that sulfur combines with moisture, the tile soaks it up and begins to flake.

About 92% of units are detached houses. These are township estimates and say nothing about a particular property.

What a buyer should find out before closing

CSIA calls for a Level 2 inspection on the sale or transfer of a property. It includes a video scan of the flue liners' inner surfaces and joints where access allows, in addition to the visible parts of the chimney. A general home inspection may not go that far. If the house has a wood stove or a fireplace you plan to use, include it in the same visit so every flue is covered at once.

The report should answer these points for the house you are buying:

  • How many flues the chimney has, and which appliance or fireplace each one serves.
  • The condition of the oil flue's tile and joints, and how much scale sits at its base.
  • Whether any flue is unlined, or lined with something that no longer fits the appliance.
  • The state of the crown, flashing and cap, which keep water out of the masonry.
  • For a fireplace or stove, the condition of the firebox, damper and connector.

For a home sale, you receive the report before we leave, with photos. How to read a chimney inspection report explains which findings are urgent and which are routine upkeep.

Timing helps too. An inspection booked early in the contract period leaves room to get repair quotes and, if needed, a second opinion before the deadline your agreement sets.

Your first year with the chimney

  1. Before the first cold spellHave the oil flue cleaned if the sellers cannot show recent service. CSIA's summary of NFPA 211 calls for a yearly inspection plus cleaning and repairs when they are needed.
  2. If you replace the boilerNew Jersey's Form F370 has someone verify that the flue is clean, sound, and lined and sized for the new unit.
  3. If you add a wood stoveUnder CSIA's guidance, a new appliance on the chimney moves the next inspection up to Level 2.
  4. If a flue goes unusedA flue left behind by an old stove or a boiler that now vents through the wall still takes rain and can attract nesting animals. Keep it covered at the top, or ask about closing it properly.
  5. If masonry work comes upOlder chimneys may have softer mortar that should be matched, as explained in chimney mortar types.

Local questions

Is a home inspector's chimney check enough when buying?

It is a start. CSIA calls for a Level 2 chimney inspection at a sale, which adds a camera look inside the flues that a general home inspection may not include.

When will we get the inspection report?

For home-sale inspections, the report is handed to you before we leave the property, with photos of what we found.

Should the sellers have the flue cleaned before our inspection?

It can help, since heavy soot and scale hide the tile from the camera. If deposits limit the view, the report should say so and note which parts of the flue could not be seen.

The listing says the chimney was relined. How do we confirm it?

Ask the sellers for the paperwork, which should name the liner's make and size. A camera inspection then shows whether a liner is present and in good condition.

Sources

  1. U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (tables B25034, B25040, B25024), via Census Reporter
  2. CSIA: The Three Levels of Chimney Inspections
  3. CSIA: Annual Service of Your Oil-Fired Appliance Chimney
  4. NJ DCA Form F370: Chimney Verification for Replacement of Fuel-Fired Equipment (PDF)