Mainline Plumbing & Heating
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24 companies listed · 16 in Prince George · 2 open 24/7 · 5 open weekends · 16 rated 4.5+
Data verified October 18, 2026
Listed for homeowners in and around Prince George, BC, these 24 companies build and rebuild retaining walls. Wall types, materials and seasonal hours are what each company publishes for itself, and the ratings and quoted lines are drawn from public reviews.

Of the 24 companies we list here, 16 are in Prince George itself and 8 come from Grande Prairie, AB (3, 291 km) and Fort St. John (2, 286 km). 23 of the companies on this page have a rating, from 4.0 to 5.0 across 283 reviews; 1 has 50 or more reviews and 16 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (86%) and responsiveness (77%). The topics that come up most in reviews of the companies on this page are "communication" and "price". 2 are open around the clock; 5 are open on Saturdays and 2 on Sundays. Domain records put 4 websites of the companies on this page at ten or more years old; the oldest dates from 2001. 3 give free estimates and 6 are family- or locally-owned. We have a website on file for 23 of the companies on this page; 22 publish a contact page and 17 list a public email. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
No-charge estimates are advertised by 3 of the 24 companies here. A low wall on firm ground with easy access can be priced from a walk around. Anything tall, anything on a steep slope and anything with a driveway above it needs levels taken and usually an engineer, and that part is design work somebody pays for.