01
Natural stone walls
Lay structural and veneer stone with the bond, through-stones and drainage the assembly requires.
Est. 2008 · Licence 7A-59659
Stone masonry work built around the job, not a guess.
Qualified stonemasons serving Milton, with the scope, safety plan and schedule written down before work starts.
- Red Seal Brick and Stone Mason certification
- Fully insured
- 18 years in business
- Same day where we can
Serving Milton
- LicensedLicence 7A-59659
- Response timeSame day where we can
- Experience18 years in the trade
Keystone Stonework
Welcome
Welcome to Keystone Stonework
Stonemason in Milton
Looking after Milton and the surrounding area since 2008.
Est. 2008Who we are
About Keystone Stonework
Keystone Stonework provides stone masonry work for homeowners, heritage contractors, builders and landscape firms. We plan the access and safety requirements first, keep the person approving the work informed, and hand over the records the job calls for when it is done.
What we do
- Natural stone walls
- Stone veneer
- Heritage restoration
- Chimney and fireplace stone
- Steps and entrances
- Repointing and repairs
What we offer
Our services
Work we take on for homes and businesses in Milton and nearby.
- 02
Stone veneer
Prepare the substrate, flash openings and install full-bed or thin veneer without trapping water behind it.
- 03
Heritage restoration
Match stone, lime mortar profile and tooling while retaining sound original work wherever possible.
- 04
Chimney and fireplace stone
Repair or rebuild exposed stonework with heat, flashing and weathering details handled together.
- 05
Steps and entrances
Set stone treads, risers, landings and caps on a base designed for Ontario freeze-thaw cycles.
- 06
Repointing and repairs
Remove failed mortar to a proper depth, replace loose units and repoint with a compatible mix.
For your peace of mind
Licences & certifications
Ask any contractor to show you these before work starts. Ours are set out in full below.
- Service area
- Milton
- Response time
- Same day where we can
- Red Seal Brick and Stone Mason certification
- Fully insuredCertificate of insurance available before work starts.
- WSIB coverage in good standingClearance certificate available for commercial and industrial sites.
- Site-specific safety planHazards, lockout requirements and access are reviewed before the crew mobilizes.
- Licence no.
- 7A-59659
- Established
- 2008
Ready when you are
Need a hand in Milton?
Speak to someone who does the work themselves. Typical response: Same day where we can.
Good questions
Frequently asked
Our regular work includes Natural stone walls, Stone veneer, Heritage restoration, along with the related inspection, setup and repair needed to leave the job ready for service. Send the equipment, drawing or site details and we will tell you plainly whether it fits our scope.
Red Seal Brick and Stone Mason certification is the trade-specific qualification we lead with. Insurance and WSIB documents are available before the job, and any permit, engineered drawing or manufacturer procedure the work requires is identified in the quote.
We quote from the actual scope: drawings and measurements where they exist, equipment model and condition where they do not, access, shutdown time, materials and testing. Changes are written down before they become extras.
Yes. For homeowners, heritage contractors, builders and landscape firms, we plan access, lockout or isolation, lifts and hot-work controls before arrival. If the work needs a shutdown, the quote separates preparation from the outage window so the interruption stays as short as practical.
A few wide photos, the address, the make and model of any equipment, the drawing or part file if there is one, and the date the work has to be ready. That is usually enough to assign the right person and avoid a wasted trip.
Where we work
Service area
Not sure whether you are inside it? Give us a call — we will tell you straight.
- Milton
Book a visit
Pick a time that suits you
Choose a day, leave your number, and we will be in touch to confirm.
- Takes half a minute — no account needed.
- We confirm by phone or text before we set off.
Rather talk it through?
(905) 555-0140Book a visit
Pick a time that works. Takes about 30 seconds.
October 2026
SMTWTFS
Get in touch
Request a quote
Leave a few details and we will come back to you. Typical response: Same day where we can.
Tell us about the job
Name and number is plenty — anything else helps us come prepared.
Contact details
- (905) 555-0140
- Milton
Opening hours
- Monday
- 7 am – 5 pm
- Tuesday
- 7 am – 5 pm
- Wednesday
- 7 am – 5 pm
- Thursday
- 7 am – 5 pm
- FridayToday
- 7 am – 5 pm
- Saturday
- 8 am – 1 pm
- Sunday
- Closed