GCM Construction

A Brief Introduction About Us

Who are we?

G.C.M Inc serving across the Greater Toronto Area is an experienced and professional interior remodelling company. We turn your ordinary-looking houses into beautiful homes by understanding your dreams and fulfilling your expectations to becoming reality.





Heating and Cooling







About us

We have an annual target in every year in order to be forging ahead. Our enterprise purpose are quality, satisfaction, and excellent service.



We promise our renovation have a good quality as you can talk to us if you have any problem.



We know building your dream house is a biggest thing in the life that we will fulfill your requirement with 120% hard.

excellent service

Excellent Service

We have professional techie to check the site regularly for following up your requirement and providing suggestion for you dream house.

Wide service

As a senior contractor, we provide different kinds of option and service for you, no matter you want to do the replacement for your roofing or interlocking, we are here for you.

get a free estimate

Fill our form below for a free, no-obligation quote.


Experienced, licensed,
$5 million Insurance

We are experienced, licensed contractor and fully boned for up to five million insurance that have already served Ontario & surrounding area for 6 years strong.

As a founded for 6 years company, we have a fully structure, including but not limited to knowledge, technical, and resource. Our team members are legally licensed plumbers and electricians. We have been doing the home and commercial improvement in and around Toronto for a long period through our service (including GTA, Mississauga, Oshawa, Hamilton & surrounding areas). We are welcome to answer all of the question you got for your home.



Our renovation offer

G.C.M Inc is a high professional standards contractor as we have various licensed techies. No matter what you want to do, we can help you to figure it out (including roofing & deck).




Entire House Renovation

Repairing Job



Stairs and Siding

Wall and Flooring

Best rated contractor

Wanna know what people think about us? Check out our Review

Anna James in Ottawa.
Front Porch
I hired a guy to replace our crumbing concrete front porch and railing . The work came in on time, on budget and the job site was kept very neat and clean from very start of the first day to the end they continually update me on the progress. I was extremely pleased and happy with their good work.

Finish basement
We had GCM finished our basement and are very happy with the entire process. Harry and his team have done excellent work, they always informed us any changes and gave us advices as well. Harry helped us to find other good contractors to finish our customized cabinet and countertops. The whole team arrived as scheduled and finished in time. We highly recommend to anyone who would like to do the Reno works for your home.

Daniel W.
Basement renovation
I recently had my basement renovated by G.C.M Inc., and I’m thrilled with the outcome! Harry’s team did an outstanding job from start to finish. The project was completed on schedule, and the quality of their work exceeded my expectations. Throughout the process, they were professional, dependable, and paid close attention to detail. My basement looks amazing now, and I couldn’t be happier with the results. I highly recommend G.C.M Inc. for any renovation project. They truly did an outstanding job