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D&S Masonry

D&S Masonry is a general contractor and masonry company in Renfrew County. Over 15 years of experience with Masonry services.  

Foundation Waterproofing

Basement and foundation waterproof with high quality products.

Concrete Work

Full-service concrete work including but not limited to sidewalks and steps.

Interlock Stone and Retaining Wall

Installation of interlock stones and retaining walls.

Chimney Repair and Restoration

Complete repair and restoration of chimney to it’s original state, or with a new look. 

Concrete Parging Interior & Exterior

Complete or partial inside or outside concrete parging services.

Stucco Repair

Repair to older stucco homes.

Fireplace Repair and Restoration

Repair and complete restoration of gas and wood burning fireplace.

Brick and Block Work

Complete brick and block work for residential and commercial buildings.


Installation of bathroom tiles and tile backsplash.

Foundation Repair

Foundation repair experts: block, stone or poured concrete foundation.

Brick and Block Work

Complete brick and block work for residential and commercial buildings.

General Contractor

Flooring, drywall installation and much more.


Community Friendly Construction

We support our local economy. We source our material from local businesses in the Ottawa Valley region, helping to support the local economy while saving you money on transportation.


Experienced Labour

Derek Demont, the owner of D&S Masonry, has a family history of stonemasons as far back as his great grandfather. Derek has a total of 15 years of experience in the masonry trade.


Support our seniors, troops and veterans

At D&S Masonry we offer a 10% discount to all seniors aged 60 and over, we also support our troops and offer a 10% military and veteran discount as well.

No Project Too Big Or Too Small

D&S Masonry is a full service company offering services across all of Renfrew County. We offer masonry work in Pembroke, Petawawa, Renfrew, Arnprior and all the Ottawa Valley Area. Our company can take any job, regardless of size, up to 2 and a half hours around the Renfrew County.

We can help you with parging, foundation repair, brick and block installation and repair, and several other types of work. Through our 15+ years of experience in the masonry trade, we acquired an extensive experience on other construction and repair areas.

Call D&S Masonry for a quote. We offer competitive rates, from foundation repair to tile installation, flooring, roofing and all other general contractor areas.

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Third Generation Stonemason

Over 15 years of experience with foundation, retaining wall, chimneys, fireplaces and other concrete, brick and block fields.

Proud Supporter of Breaking The Silence

Client Testimonials

Awesome experience with Derek. The blocks at one corner of our basement were bowing, so Dereck replaced the blocks, core filled them and waterproofed the outside. While he was here he noticed some holes between the blocks on the other side and fixed them without charging. The job site was thoroughly cleaned afterwards. Highly recommended.


I contacted D & S Masonry to have some work done for my Grandmother’s chimney that was in need of repair. From the first point of contact up until the job being done, they were outstanding! (…) Overall this was a very satisfying experience. Definitely good work from people you can trust to do the job right.


Professional and courteous. Did an upstanding job with our basement and offered competitive reasonable prices. The crew was thorough and put everything back the way they were prior to the reno. Derek was informative and didn’t mind all my questions.