Concrete joint caulking in Toronto
Are weeds growing in the joints of your driveway, or is water running under the patio? We clean out the old filler, add backer rod and seal concrete control and expansion joints with a flexible sealant made for outdoor concrete.
The price is agreed before we start. If we find something unexpected, we stop and show you first.
Prefer a call? (647) 669-7346
- 5.0 on Google, from 28 reviews
- Since 2005 · 21 years
- Fully insured

What do you see in the concrete joints?
Choose the one closest to your situation.
Open joints collect dirt and seeds. We clean them out and fill them with a sealant that stays flexible.
Water in open joints can wash out the base and freeze under the concrete. Sealing the joints keeps most of it on the surface.
Old caulk dries out, shrinks and pulls away from the edges. We cut it out and replace it.
Tell us what you see or hear. Write it in the booking form or message us on WhatsApp, and we'll tell you what it is.
What this service includes
- Remove old filler and debrisWe cut out old caulk, weeds and loose material from the joints.
- Clean and dry the jointsJoints are brushed and blown clean so the sealant can bond.
- Install backer rodA foam rod sets the right depth so the sealant can stretch.
- Seal and tool the jointsSealant applied and smoothed, then we clean up and tell you when it can take traffic.
Quoted separately, only if you need it
Repairing broken or sunken concrete, levelling slabs and sealing the whole concrete surface are quoted separately, only if you need them.
Why concrete joints need sealing
Driveways, walkways, patios and garage floors have joints so the concrete can move as it heats and cools. Those joints are also where water, ice and weeds get in. A flexible sealant lets the slab move while keeping water out of the base underneath.
Signs it's time
- The old sealant is cracked, hard or missing.
- Weeds or grass grow in the joints.
- One slab has started to sink or tip next to another.
- Water pools along the joints after rain.
What to expect
Sealant only bonds well to clean, dry concrete, so we plan the job for a dry day with mild temperatures. Self-levelling sealant is usually used on flat surfaces like driveways, and a thicker type on vertical joints, such as where a slab meets the house wall. Most sealants need a day or two before cars drive over them. Sealing does not fix slabs that have already sunk or cracked badly, and we tell you if that is the case.
Service details
- Time on site
- 2 to 6 hours
- Technical visit
- Recommended. We check the job and the access first.
- Materials
- We supply the backer rod and an outdoor concrete sealant suited to your joints.
- Warranty
- 2 years on our work
- Area
- Toronto and the Greater Toronto Area (GTA)
What happens after you book
You don't need an app or an account. Someone from our team contacts you to confirm.
You choose a day
Online in a few minutes, on WhatsApp or by phone.
We contact you to confirm
Usually within two business hours.
The technician checks and gives you the price
Nothing starts until you say yes.
The work is done and tested
Tested with you. Our work has a 2-year warranty.
What our clients say
Excellent work, friendly staff, respectful. If you want a job done right at a fair price, this is the company to call!
Sandra L.Home maintenance Great organization to work with, very good communication and clarity on the work to be performed. Very happy with the work done.
Chito W.Home repairs
Questions about concrete joint caulking
Can you caulk cracks as well as joints?
Yes, we can seal narrow cracks to keep water out. Wide or moving cracks may need a concrete repair, which we quote separately.
When is the best time to seal concrete joints?
Late spring to early fall, on dry days. The concrete has to be dry and the temperature mild for the sealant to bond.
How soon can I drive on it?
Walking on it is usually fine after a few hours. For cars, most sealants need a day or two, and we tell you the time for the product we use.
Is sand or mortar in the joints better than caulk?
Rigid fillers crack when the slabs move. A flexible sealant over backer rod moves with the concrete and lasts longer.
Do you seal the joint between the driveway and the house?
Yes, that joint often lets water run toward the foundation. We seal it with a sealant suited to both surfaces.
We seal concrete joints across the Greater Toronto Area (GTA)
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Message us on WhatsApp and we will find you the earliest available day.



