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Operating across London, ON, Advanced Basement Systems ranks among the area’s better-reviewed plumbing companies (4.9★ across 373 reviews). Its work spans waterproofing work and concrete work for local homeowners.
By Kate Laing on May 22, 2026 Verified by Google
These folks know their stuff! We moved into a house that was literally on top of flowing water. They had installed a sump and drainage system that they know backwards and forwards. Crystal is an absolute Customer Service GODDESS who never lets us forget our annual maintenance and is always so good at helping us get Trevor in here when it works for our busy schedule, because he knows. When we moved in, the previous owners left their contact information. When we moved out, we left their contact information. That kind of loyalty in today's world has to be earned — and they've earned it in spades.
By Mike Regimbald on May 1, 2026 Verified by Google
Jordan and Rob just finished up fixing a crack in my foundation, and I couldn't be more satisfied! They walked me through the process then got to work. Before I knew it the job was done and all cleaned up! They were great... Shout out to Sam Finlayson, he was great too :)
By Stacey Dale on Feb 24, 2026 Verified by Google
What I loved is that they spent the time explaining their system and showed us videos so we could fully understand their systems. The guys came and installed a sump pump in our cold room. Fast and efficient. I would 100% recommend them.
By Laura Leitch on Feb 10, 2026 Verified by Google
We had Joel and Derek install a radon mitigation system. The installation was done exactly as scheduled, Joel and Derek were on time (to the minute!), professional, friendly and super clean. Honestly, except for the new fan and vent pipes, you couldn't even tell anyone had been in our house, I have never had cleaner trades people do work! When they were done they explained everything. The radon reduction took effect quickly and works exactly as promised, but it was dealing with Joel and Derek that made this a 5 star experience. I would absolutely give more if I could!
By 1099 Mosley on Dec 19, 2025 Verified by Google
This is the second time I’ve used Advanced Basements out of London, and once again they exceeded my expectations. The first time was for a sump pump, and this time they completed spray foam insulation in our crawlspace. Both experiences were outstanding from start to finish.
I can’t say enough good things about Sam, the sales rep. He is incredibly professional, friendly, and most importantly, honest. There was zero pressure, everything was clearly explained, and I felt confident that the recommendations were genuinely in our best interest.
The technician’s ( Tim +1 ) who completed the work were extremely professional and took exceptional care of our home. Every square inch of flooring he walked on was carefully protected, and when the job was done, the house was left spotless. Honestly, you would never know anyone had been here—that level of care really stood out to us.
Based on two consistently great experiences, I would highly recommend Advanced Basement Systems to anyone considering any of the services they offer. A trustworthy company with great people and excellent workmanship.
Steve T , Stratford