Title 5 Roster: find a MassDEP-approved Title 5 septic inspector in Massachusetts
Title 5 Roster is a free directory of MassDEP-approved Title 5 septic System Inspectors in Massachusetts, organized by town, with plain-language guides to septic inspections at property transfer.
1139 approved System Inspectors in 1104 listings, from NEIWPCC's list of MassDEP-approved inspectors (current 10/2/2026). Inspectors employed by boards of health or MassDEP are left out because they generally act as regulators, not private hires.
Selling or buying a Massachusetts home with a septic system? Title 5 usually requires an inspection within 2 years before the sale. Here's how it works.
Towns with the most approved inspectors
Plymouth
23 listingsBarnstable
17 listingsMiddleborough
15 listingsSandwich
15 listingsBourne
13 listingsFalmouth
13 listingsWestford
13 listingsDennis
12 listingsYarmouth
12 listingsWareham
11 listingsAttleboro
10 listingsHarwich
10 listings
23 listingsBarnstable
17 listingsMiddleborough
15 listingsSandwich
15 listingsBourne
13 listingsFalmouth
13 listingsWestford
13 listingsDennis
12 listingsYarmouth
12 listingsWareham
11 listingsAttleboro
10 listingsHarwich
10 listings
All 277 towns → · Counties · Out of state