As a rule we would expect a house built in 1978 to have finished settling long ago, but that's not always the case. Soil conditions, flooding, unusual weather conditions all could cause settling years after a house has been built.
If this contractor is reputable you need to trust what he is saying or get another opinion.
Hope this helps.
[This message has been edited by provip (edited 08-15-2005).]
_________________________
Bart Blainey, B.E.R.
Consultant/Journeyman Carpenter
Building Envelope Specialist
Master Renovator
provip@prodeck.org
http://www.prodeck.orgBarton Blainey (provip) specifically assumes no legal liability or responsibility for the accuracy, completeness or usefulness of any information or process disclosed. The above further expressly advises that any use of or reliance upon the information and or opinion disclosed is at your risk .