Price your interlock restoration in about 60 seconds.
A few quick questions about your stones and joints — then a price range on screen, no email required. A free on-site assessment confirms your written proposal.
Describe your stones. See your range.
Sunken or heaved areas are assessed on-site — releveling is quoted separately at your free assessment, never sight-unseen.
This is our minimum for an interlock restoration — two visits, full equipment and crew are the cost drivers on small areas, not the square footage.
- Saturated-steam weed treatment
- OxyShock pre-treatment
- Deep clean & full joint extraction
- Techniseal HP NextGel premium polymeric sand
- Plate compaction · two visits (clean, then sand after drying)
- 5-year joint warranty on qualifying areas
Restored joints cure CAT5-ready — the CAT5 satin finish can be added any season later via Interlock CAT5 Seal & Renew.
Live pricing is briefly unavailable — send the enquiry below and David prices it directly.
Like your range? Get it in writing.
Send your details and David prices your surface with a free on-site assessment — walking the stones with you, taking precise measurements, checking for anything the questions couldn't see, and leaving a written proposal. No obligation, no pressure.
- A reply within one business day
- A free assessment — joints, base and drainage checked in person
- A written proposal — your real number, built line by line from what the assessment finds
- A clear recommendation — including when restoration isn't worth it yet

"I found your company while doing an online search for interlock repair, and your online cost estimation was a differentiator."— Charlie · Interlock restoration client, Ottawa
Common questions.
Is the range binding?
It's a range built from our real labour, equipment and material costs — and it assumes the surface as you described it. The free on-site assessment prices what's actually there: sometimes the bottom of the range, sometimes the top, and occasionally outside it when the joints hide surprises. The written proposal that follows is the number we stand behind. Prices exclude 13% HST.
Why two visits?
Restoration done properly needs the surface bone-dry before polymeric sand goes down. Visit one: deep clean, steam, full joint extraction. Visit two, after drying: premium sand, plate compaction. One-day shortcuts lock moisture into the joints — we don't offer them.
What about sunken or heaved areas?
Releveling is real structural work that has to be assessed in person — no calculator can price it accurately. If your surface has sunken spots, send the request anyway; David quotes releveling separately at the assessment.
How soon can the work happen?
In season, most restorations are booked one to three weeks out. The free assessment happens much sooner — usually within days — so your written proposal and queue position are settled early.
Can I seal it later?
Yes. The restored joints cure into ideal condition for the CAT5 satin finish, which can be added any future season through Interlock CAT5 Seal & Renew.