DonMar Custom Auto and Fabrication

DonMar Custom Auto and Fabrication DonMar is a licensed full service automotive repair facility that specializes in custom suspension, as well as exhaust and fabrication.

We are experienced in engine swaps, wheels/tires, aftermarket accessories, etc. DonMar Custom Auto and Fabrication specializes in customizing your ride. Whether than means aftermarket suspension source and installation, a custom one-off fabricated chassis, or anything in between. We also deal with light fabrication, primarily automotive related but capable of much more such as storage solutions, household improvements, decor, furniture etc.

We will once again be attending at this Saturday, June 13th and providing tire services. If you’re looking for afforda...
06/09/2026

We will once again be attending at this Saturday, June 13th and providing tire services. If you’re looking for affordable tires, shoot us a message! Pickup available in Waterloo, or delivery available to TMP. Many sizes available! Grenlander, Haida, Ovation and many many more brands avail for this deal.

Hanging out at slinging tires for
05/24/2026

Hanging out at slinging tires for

Taylor brought us his ‘81 VW Rabbit pickup for an exhaust to pass safety. We cut the pipe at the existing downpipe from ...
05/15/2026

Taylor brought us his ‘81 VW Rabbit pickup for an exhaust to pass safety. We cut the pipe at the existing downpipe from the diesel engine and bent up a new system with a muffler. What a cool rig!

Sienna in for an exhaust revamp, another case of the failed direct fit aftermarket world. Aluminized tubing rots in only...
05/14/2026

Sienna in for an exhaust revamp, another case of the failed direct fit aftermarket world. Aluminized tubing rots in only a couple of years, why pay twice? Save money in the long run by doing things right the first time. We ONLY use quality stainless products. Thanks to for the muffler, resonator and flanges on this one!

Ian brought us his 2026 Ford F250 with a problem - The running boards were 22” off the ground. That’s not a small step, ...
05/07/2026

Ian brought us his 2026 Ford F250 with a problem - The running boards were 22” off the ground. That’s not a small step, regardless of how tall or short you may be. We removed the factory running boards and brackets, modelled replacement brackets using measurements from the originals, and sent a file over to for laser cutting, followed by for black textured powder coat. These new brackets bring the step down to 18”, which is much more ergonomic!

John brought us his Tundra for a set of wheels wrapped in STT Pro’s, along with TIG welding his “mufflers” into his p...
05/07/2026

John brought us his Tundra for a set of wheels wrapped in STT Pro’s, along with TIG welding his “mufflers” into his previously installed TRD dual exhaust. Much better!

Matteo had his 17” Ferrari 348 Spyder wheels over to for ceramic polishing, which we then wrapped in a fresh set of Mic...
03/19/2026

Matteo had his 17” Ferrari 348 Spyder wheels over to for ceramic polishing, which we then wrapped in a fresh set of Michelin’s. Great work as always, and thanks for the referral!

This Mazda 5 was in for a variety of exhaust leaks. The flex pipe was one of many, which is welded to the catalytic conv...
03/19/2026

This Mazda 5 was in for a variety of exhaust leaks. The flex pipe was one of many, which is welded to the catalytic converter/exhaust manifold, and would otherwise need replacing as a whole, which can be a very costly repair. We cut the faulty section out, and utilized quality replacement parts from to save the customer money. The exhaust components were in generally good shape, but had leaks in a few areas of the tubing, so we saved what we could and bent new tubing to repair the rest.

John brought us his new-to-him 2024 Silverado for a 3.5” levelling kit. We got it installed and aligned, ready to enjoy...
03/03/2026

John brought us his new-to-him 2024 Silverado for a 3.5” levelling kit. We got it installed and aligned, ready to enjoy! We love when customers ask us about modifications before even having the keys to their new trucks, especially ones with 5,500km on them. Thanks for trusting us to help!

recently got a new vehicle and immediately knew it was too quiet. We got him in today for a new custom axle-back with ...
02/20/2026

recently got a new vehicle and immediately knew it was too quiet. We got him in today for a new custom axle-back with carbon fibre tips. Thanks for the continued support with all of your needs!

Address

6-66 Rankin Street
Waterloo, ON
N2V1V9

Opening Hours

Monday 9am - 6pm
Tuesday 9am - 6pm
Wednesday 9am - 6pm
Thursday 9am - 6pm
Friday 9am - 6pm

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