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Q&A: How Often Should I Clean My Ductwork?

QUESTION How often do you advise to have my ductwork cleaned? When I removed the cold air returns recently, the ducts seemed to be pretty clean. I change the filter on a regular basis, have no pets, and the house is about 36 years. Are there guidelines for this?...

Q&A: How Do You Remove Black Streaks on the Roof?

We frequently hear from homeowners seeking answers to repair and maintenance problems. Many of these questions and answers are compiled in our Home Improvement Library. Here is a recent question. Question I have black streaks on the north side of my roof. What causes...

Q&A: Is Our Drain Tile Blocked?

We frequently hear from homeowners seeking answers to repair and maintenance problems. Many of these questions and answers are compiled in our Home Improvement Library. Here is a recent question. Question My husband suspects our drain tile is blocked. Short of digging...