The honest truth is that an Inspector does not really know how long it will take until they arrive on site and do the inspection. A thorough inspection can take time even on a home in good shape! Most likely the biggest factor is the thoroughness of the Inspector. Inspector's can shave off significant amounts of time by not fully walking attics that are accessible, by inspecting all roofs from the ground with binoculars, by finding one example of an issue and then generalizing on all of the same items in a home (i.e. one electrical outlet is improperly wired so they must all be) and then calling for further specialists unnecessarily, and a whole host of other time saving techniques used by the not so thorough Inspector.
If you're paying to have a professional come into a home and find all items of concern (except cosmetic) , they should be looking for all issues not just the big ticket items. Not all issues are clear cut and self explanatory. Those are the issues that can add to the inspection time. Anyone can go into a home and point out potential issues. You need to know if the issue is real and the Inspector needs to know also and if they just perceive a problem.
If you're the seller then you are also better served as well by the thorough Inspector. The thorough Inspector will make sure that the item found is actually an issue and not just a suspected issue and will report it accordingly to their client. Also, the buyer then knows as much about the home as possible and there is little doubt later which can cause potential issues witht he deal.
Good luck on your RE transaction!
Emmanuel J. Scanlan
PS Inspection & Property Services LLC
TREC License # 7593
International Code Council, Residential Combination Inspector #5247015-R5 (Electrical, Mechanical, Plumbing and Building)
Certified Infrared Thermographer (ASNT-TC1A Standards)
Texas Residential Construction Commission, Third Party Warranty Inspector #1593
Texas Department Of Insurance, VIP Inspector # 08507061016
Hayman Residential Engineering Services, Field Technician
CMC Energy - Certified Energy Auditor
Knowledge is power, but sharing knowledge brings peace!!
It depends on the home and inspector.
Methods differ, with some inspectors doing more documentation and paperwork on the premises, and some entering data into a computer to produce a report later.
Small homes take less time than large homes.
Homes in great condition take less time than homes that have a ton of issues.
I would guess that 2 to 4 hours is reasonable for an inspection.
You should have your report the same day, or next morning at the latest.
If you have a radon test performed, you can plan on 48 hours for the test, with results the same day.
If reports are done on site it may take longer. Insist on photos!
In case you would like a little more info on what to expect at the home inspection, I have included a link below to a blog post I wrote about this topic.
There are many factors that go into that. The size of the home and thoroughness of the inspector are the biggest players. I recently had an inspection on a 1300 sqft new construction home that took a little over an hour. Another inspection on a two year old 3000 sqft home took about 2 1/2. That includes the time my buyers and I spent with the inspector afterwards going over his concerns and asking any questions we had about the house.
Good luck to you!