Middlesex County, New Jersey
Chimney Liner, Crown and Cap Work in North Brunswick Township, NJ
At one North Brunswick Township home we installed a liner, repaired two crowns and worked on two chimney caps. Here is how crowns and caps work together.
Dr. Sweeper has completed a project in North Brunswick Township, Middlesex County. It included liner installation, repairs to two chimney crowns and installation or service of two chimney caps. The project is shown below.
About 39% of homes in the township are detached houses, and about 57% of occupied homes are owner-occupied. The median build year is 1982 and about 10% of homes predate 1950.
Two crowns and two caps suggests two flues or two chimneys. A crown and a cap protect the same opening, and they fail in different ways.
Our work
Our work in North Brunswick Township

Liner Installation, Two Crown Repairs and Two Chimney Caps in North Brunswick Township, NJ
North Brunswick Township, NJ · Chimney liner, two crown repairs, two chimney caps
A multi-part chimney project: liner, two crowns and two caps.
Read the projectHousing profile
What the housing mix means in North Brunswick Township
Fewer than four in ten homes are detached, and the rest is attached or multi-unit housing, so some chimneys may be shared or managed by an association. The project above shows how much the top of a chimney can ask for in one house.
What we look at
Crown and cap, side by side
Crown
Cement or masonry slab that sheds water off the top of the chimney.
Cap
Metal or masonry cover that keeps rain and animals out of the flue.
Different jobs
The crown protects the masonry. The cap protects the flue.
Liner
The new liner is inside the flue, so the top treatment has to suit it.
Learn
Caps and crowns together
A cap on a cracked crown is half a repair. Water running through the crown still enters the masonry, and a crown in good condition without a cap leaves the flue open to rain and animals. A liner also relies on a good top: the cap and crown work together to keep water from running down the flue.
Where a chimney has more than one flue, each opening needs attention. See chimney caps, crown repair and chimney liners, the guide to cap versus chase cover, and the North Brunswick Township project.
Symptoms
| Symptom | Possible cause | Next step |
|---|---|---|
| Cracks in the crown | Water exposure | Crown repair |
| Rusted or missing cap | Corrosion | New cap |
| Water in the fireplace | Open flue or crown crack | Inspect top |
| Liner exposed to rain | Cap or crown gap | Check the termination |
Questions
Frequently asked questions
Does a liner need a cap?
Yes. A liner needs a proper termination at the top.
Why two crowns?
The project involved repairs to two crowns, as described on its page.
Is the township the same as North Brunswick?
North Brunswick Township is the municipality in Middlesex County.
Service areas
Other areas we serve
Chimney Academy
Guides that go with this page
Questions about your chimney in North Brunswick Township?
Call us, or send a scheduling request. We will contact you to confirm. Your appointment is not confirmed until we do.