How Much Does a Full Sweep vs an Inspection-Only Cost

Confusing an inspection with a full sweep is one of the most common mistakes when shopping for this service — the two terms sound interchangeable, but they meet different needs and carry different price tags.

Price comparison

Inspection only

A visual inspection (by eye or camera) without cleaning, generally between $100 and $175. Recommended before buying a home, after a specific event (earthquake, storm), or simply to assess the flue's general condition without committing to immediate cleaning. It's also the logical starting point if you've never had your chimney checked — it'll tell you exactly what's needed next.

Full sweep

Includes mechanical cleaning of the flue plus a basic inspection, generally between $150 and $350 depending on accessibility and the buildup level found on site. This is the standard service recommended once a year for regular use.

Sweep with Grade 3 creosote

Severe buildup (glazed or tar-like creosote, also called Grade 3 creosote) often requires prior chemical treatment to soften the deposit before mechanical cleaning, plus longer labor time — which can push the price above $350 to $500. This situation typically arises after several years without maintenance or repeated use of wood that wasn't dry enough.

What moves the price either way

• Roof accessibility (pitch, height, obstacles)
• Number of flues on the property
• Level of buildup found when the technician arrives
• Any minor repairs discovered during the inspection (flashing seal, damaged cap)
• Region and the technician's travel distance

Why not just take the cheaper service

An inspection alone can seem economical, but if it reveals buildup requiring cleaning, you'll still have to pay for a second visit — unless the technician can do both on the same day. Always ask whether a full sweep can be performed the same visit if needed.

Our recommendation

If you've never had your chimney inspected, or you're moving into a new property, start with a full inspection — it'll determine whether a sweep is needed right away or routine maintenance is enough. If you already know your chimney has been used regularly for over a year without maintenance, go straight to the full sweep.