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ᴍʏ ᴘᴀssɪᴏɴ ɪs ᴛᴏ ʜᴇʟᴘ ᴘᴇᴏᴘʟᴇ ᴀᴄʜɪᴇᴠᴇ ᴛʜᴇɪʀ ʜᴇᴀʟᴛʜ & ғɪᴛɴᴇss ɢᴏᴀʟ(s). THIS ᴅᴏᴇsɴ'ᴛ ᴇɴᴅ ᴜɴᴛɪʟ ɪ ʜᴀᴠᴇ ᴇᴅᴜᴄᴀᴛᴇᴅ ʏᴏᴜ ᴏɴ ʜᴏᴡ ᴛᴏ ᴍᴀɪɴᴛᴀɪɴ ʏᴏᴜʀ ʀᴇsᴜʟᴛs; ᴍᴀᴋɪɴɢ ɪᴛ ᴀ ʟɪғᴇsᴛʏʟᴇ ᴀɴᴅ ᴄᴜʟᴛᴜʀᴇ.
Response time

I can be contacted via Email/Instagram DM anytime & day of the week. I will be sure to respond within 24-48hrs.

By appointment only
Open hours today: By appointment only Toggle weekly schedule
  • Monday

    By appointment only

  • Tuesday

    By appointment only

  • Wednesday

    By appointment only

  • Thursday

    By appointment only

  • Friday

    By appointment only

  • Saturday

    By appointment only

  • Sunday

    By appointment only

  • February 23, 2024 6:26 pm local time

Location. Please call to confirm using button above
  • GTA. (Peel, North-York, Toronto Regions) / for online: you can be anywhere across the world.


I offer a one time free consultation up to 60mins.

Service list

Health & fitness Specialist.
Low back-pain specialist.
Bodybuilding coach.
Nutrition coach.
Program Design / workouts / training / coaching
in-person training / coaching
outdoor training
own a gym of yours? i can come train you at your home gym.

Social Networks
  • Sandra Akani
    June 3, 2021 at 8:20 pm

    I have had the pleasure of been trained by grungefitness. I was extremely obese and hated the gym or anything the required me breaking a sweat. He made me understand the importance of been physically fit and literally held my hand through the process. I have not looked back ever since. Easily the best decision I have ever made, putting my health first. In summary, he is the best trainer in the GTA, Period. 😊

  • Marthias ugbome
    June 3, 2021 at 8:27 pm

    Coach grunge is a very good fitness instructor/ coach guys. He is very dedicated and will guide you through your fitness journey. Don’t hesitate to hit him up .

  • Tomi Dave
    June 4, 2021 at 12:29 pm

    Coach Grunge is the best, NO CAP. Getting the right trainer used to be so draining but thankfully i got mine now lol. He knows his stuff and i am proof of that. I started my fitness journey with him when i was 205.2lbs (L, XL) and with his help, direction and motivation i was able to reach and beat my goal weight which was 150lbs (S). Now that my goals have changed, i am so excited to work with him to get those gains in!

  • Hakeem Kilanko
    June 4, 2021 at 1:58 pm

    Amazing training content, his coaching methodologies are simply extraordinary. As an athlete, I would endorse his services, the byproduct to his programs is RESULTS!

  • Loic Tiemani
    June 4, 2021 at 6:40 pm

    I have had the pleasure of training with Coach Grunge and It was an amazing experience. Throughout the session he made sure our posture and execution of each rep was proper. He is very knowledgable and knows how to motivate and empower anyone who needs guidance. He is not scared of pushing you out of your comfort zone and keep you accountable. I definitely recommend him if you are serious about making a change.

  • madhu
    June 4, 2021 at 8:23 pm

    Collins Grunge is a very capable fitness instructor who understands each individuals specific fitness goals and customizes fitness programs to meet their objectives. I have found him to be focussed on the job and gives constructive advice to improve ones fitness levels.

  • oudeka@gmail.com
    June 5, 2021 at 5:49 pm

    Collins is one of my favorite trainers in the world! He is very safety-oriented and a specialist at correcting back pain issues through exercise. Having that specialty takes a lot of knowledge, experience, and practice. That’s why I always recommend Collins; especially when clients need corrective exercise for their posture or to resolve back pain

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