# Interlock Driveway Quotes in Brampton — Helping Decode the Spread

**URL:** <https://home.renovation.reviews/t/interlock-driveway-quotes-in-brampton-helping-decode-the-spread/46332>\
**Category:** DIY & Tutorials\
**Tags:** patio, interlock, homeowners, brampton, spring-2026, renovation\
**Created:** [April 25, 2026, 7:12pm UTC](https://home.renovation.reviews/t/interlock-driveway-quotes-in-brampton-helping-decode-the-spread/46332 "2026-04-25T19:12:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![system](https://home.renovation.reviews/user_avatar/home.renovation.reviews/system/32/77_2.png) [@system](https://home.renovation.reviews/u/system)\
**Post date:** [April 25, 2026, 7:12pm UTC](https://home.renovation.reviews/t/interlock-driveway-quotes-in-brampton-helping-decode-the-spread/46332/1 "2026-04-25T19:12:34Z")

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My parents are getting interlock quotes for their Brampton driveway and I’m helping them evaluate. The spread is confusing — hoping the community can help us understand what we’re seeing.

**The driveway:** Approximately 480 sq ft, standard single-car width extending into double at the top. Gentle slope toward the street. Existing asphalt being removed.

**Quote 1:** $14,200 for Holland Stone (grey/charcoal), includes removal and disposal of asphalt, gravel base, edging restraints, polymeric sand.

**Quote 2:** $9,800 — similar scope on paper but contractor was vague about base depth (“standard base”). No mention of polymeric sand.

**Quote 3:** $17,400 for Brussels Stone premium pattern with decorative border. Same scope as Quote 1 but nicer stone.

**My concerns about Quote 2:** The price difference between 1 and 2 is significant enough that something is different. When we asked about base depth, the contractor said “6 inches” but couldn’t specify between Granular A and crusher run. When we asked about polymeric sand, he said “we use regular sand.”

Is Quote 2 the classic underprepared-base quote that looks good for 3 years then starts heaving? The polymeric sand omission alone concerns me. Am I reading this right?

Would appreciate any Brampton-area interlock experience — particularly whether Quote 1 at $14,200 is reasonable for that scope.

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**Author:** ![BuildersLTD](https://home.renovation.reviews/user_avatar/home.renovation.reviews/buildersltd/32/14872_2.png) [@BuildersLTD](https://home.renovation.reviews/u/BuildersLTD)\
**Post date:** [April 27, 2026, 2:02pm UTC](https://home.renovation.reviews/t/interlock-driveway-quotes-in-brampton-helping-decode-the-spread/46332/2 "2026-04-27T14:02:25Z")

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You’re reading this right. Quote 2 is the classic underprepared-base scenario.

A few things stand out immediately:

**“Standard base”** is not a spec. It is a non-answer. In Brampton, a proper residential driveway base runs 10 to 12 inches of compacted Granular A stone, laid in 2-3 inch lifts with a plate compactor after each pass. If a contractor cannot tell you the base depth in inches and the material by name, they are not prepared to do the job properly.

**No polymeric sand** is a serious red flag. Regular sand washes out within a season or two. Polymeric sand locks the joints, resists ants, and keeps the field stable. On a driveway — where you have vehicle loads — this is not optional.

**The math:** Quote 2 at $9,800 for 480 sq ft is about $20 per square foot installed. Quality interlock work in the GTA right now runs $25 to $45 per square foot for a standard residential driveway. The gap between Quote 1 and Quote 2 is almost entirely base prep and joint material. That difference will show up as heaving and joint failure within 3 to 5 years.

**Quote 1 at $14,200 ($29.58/sq ft)** is a reasonable number for the scope described, assuming they actually deliver the base depth they are promising. Get that in writing — specifically the depth and material for the granular base, compaction method, and the polymeric sand brand.

**Quote 3** is reasonable for Brussels premium with a decorative border.

Before signing anything, read the thread on [the 12-inch rule](https://home.renovation.reviews/t/the-12-inch-rule-why-most-toronto-interlock-patios-fail-by-spring/45841) — covers exactly what to ask any hardscape contractor before you commit.