Duval's Service Center
- Oil
- Price
- Towed
24 mechanics listed · 8 in Portland · 1 open weekends · 20 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Portland, ME, these 24 shops work on medium and heavy duty trucks. What each one says about fleet accounts, road service, inspections and hours comes from its own website; ratings and quotes come from public reviews.

Of the 24 mechanics we list here, 8 are in Portland itself and 16 come from towns including Buxton (4, 13 mi), South Portland (2, 4 mi) and Westbrook (2, 4 mi). The mechanics on this page are rated from 4.2 to 5.0 across 1,274 reviews; 13 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (90%), quality (86%) and value (80%). The topics that come up most in reviews of the mechanics on this page are "fair", "communication" and "honest". 1 is open on Saturdays. 1 lists staff certifications (ASE) and 9 have a BBB rating of A or A+. Domain records put 10 websites of the mechanics on this page at ten or more years old; the oldest dates from 1998. 1 offers financing; 1 gives free estimates; 4 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 14 of the mechanics on this page; 12 publish a contact page; 6 list a public email and 1 takes bookings online. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
8 of the 24 shops sit inside Portland; the rest come from other towns and are shown with their own city. Truck shops need land, long approaches and highway access, so they end up on the edge of town. Drivers already plan around that.