hardscape (Home Systems)

Hardscape (Patios, Walkways, Driveways)

• What this is: patios, walkways, driveways, and steps made of pavers, poured concrete, asphalt, or gravel — how they work, what fails, and how to maintain them on a detached property in Metro Vancouver.
• Not: retaining walls (see retaining-walls (Home Systems)); irrigation systems (see irrigation (Home Systems)); foundation drainage beneath the surface (see foundation-drainage-waterproofing (Home Systems)). Strata common-area hardscape (driveways, visitor parking, paths) is strata-managed — see the Strata reality section.
• Figures: 2025–26 Metro Vancouver estimates — get your own quotes.

Bottom line

The rule (tripwire)

• If any paved surface slopes toward the house → fix the grade. A patio or driveway pitched inward routes rainwater straight to your perimeter drain and foundation wall. The BC Building Code requires a minimum 2% fall (1/4” per foot) away from the building for the first 3 m.¹ Until the slope is wrong, there is nothing to do today.
• If a paver, slab, or step has more than 6 mm (1/4”) of lippage above an adjacent unit → it is a trip hazard. Frost heave and base settlement both create this. Fix it before someone falls — liability follows.
• If your asphalt driveway shows fine crazing, fading, or water soaking in (not beading) → it is time to reseal, not replace. Reseal every 3–5 years; replacement is for structural failure, not surface oxidation.

Recurring upkeep

• Spring walkthrough after frost season: check for heaved pavers, new cracks, lippage, and whether surfaces still drain away from the house. This one annual look catches 90% of problems while they are cheap to fix.
• Reseal asphalt every 3–5 years (every 2–3 in high-traffic areas).² Wait 6–12 months before sealing a brand-new driveway.
• Top up polymeric sand in paver joints when joints are visibly eroded, weedy, or soft — typically every 3–5 years depending on sun and rain exposure.³
• Seal concrete every 3–5 years in Metro Vancouver’s wet climate to resist freeze-thaw spalling and staining.⁴

One-time setup

• Photograph the drainage slope on move-in. A photo + date establishes baseline; if a neighbour’s or your own landscaping later changes grading, you have evidence.
• Find and vet a licensed landscape contractor who does drainage work — not just paving — for the day you discover a slope issue.

Standing facts

• Drainage slope is not cosmetic — it is code. BC Building Code s. 9.14.6.1 mandates grading to prevent water accumulation near the building.¹
• Large concrete or asphalt replacement is a pro job — involves demolition, base prep, and (in Vancouver) sometimes a drainage permit. Paver re-leveling of a small area is owner-doable.
• Strata common-area hardscape is strata’s responsibility, not yours — but confirm the boundary on your strata plan.

How it works — the one thing that matters

Every hardscape surface is a lid over a base. The lid — pavers, concrete slab, asphalt mat — is what you see. The base — compacted gravel sub-base, often 200–300 mm deep — is what determines whether the lid stays level and water drains correctly for the next 30 years.⁵

The load-bearing mechanism is drainage, not the surface material. Water is the destroyer. When rain hits a paved surface, it must exit at the edge — never accumulate at the centre and never run back toward the house. That requires:

1. Surface slope: at least 2% (1/4” per foot) away from the building.¹ A level patio looks right but is wrong.
2. A permeable or draining edge: water reaching the perimeter needs somewhere to go — a planted bed, a channel drain, a catch basin, or a permeable strip.
3. A stable, non-frost-susceptible base: clay soil under a patio holds moisture and heaves in a freeze. Properly compacted crushed gravel drains freely and holds shape through BC’s frost cycles.⁵

Pavers vs. concrete vs. asphalt — the practical difference:

• Interlocking pavers: individual units that can be removed and re-leveled when the base settles or heaves. The joints (filled with polymeric sand) flex slightly. Longest-lived (30–50 years) and most repairable. Each unit can be individually replaced. The joints are the weak point — weed seed and water infiltrate through eroded joints.⁶
• Poured concrete: monolithic slab that cracks rather than flexes. Cracks are repairable with crack filler or resurfacing if structural integrity is intact. A heaved slab cannot be re-leveled by resetting — it needs foam injection (polyjacking) or mudjacking, or replacement. Sealing is critical in Metro Vancouver to prevent freeze-thaw spalling.⁷
• Asphalt: petroleum-based mat that is flexible and lower-cost upfront but oxidizes and softens. Regular sealcoating is not optional here — it is maintenance. Typical lifespan 15–20 years with proper upkeep.⁸
• Gravel / permeable: no surface to crack; handles drainage naturally; requires periodic top-up and edging to stay contained.

So what: when hardscape is laid with proper base prep and correct slope, it requires almost no structural intervention — just surface maintenance. When it skips base prep or slope, no amount of surface sealing fixes the underlying problem.

→ Hardscape-Must-Slope-2pct-Away-From-Foundation (Home Systems)

What goes wrong, and the warning signs

Watch for	What it means
Water pooling on the surface after rain	Insufficient slope or a low spot — water is not exiting
Water pooling or damp soil against the house foundation	Hardscape is pitching toward the house — drainage failure; feeds the perimeter drain and basement
A paver or slab edge raised above its neighbour by 6 mm or more	Frost heave or base settlement — trip hazard
Cracks wider than ~3 mm or growing year to year	Structural base movement, not just surface shrinkage
Concrete surface flaking or pitting (spalling)	Freeze-thaw damage; usually from de-icing salt or unsealed concrete in a wet climate
Asphalt fading from black to grey, or water soaking in	Oxidation — surface sealing overdue; not yet structural failure
Paver joints filled with weeds or visibly eroded	Polymeric sand has failed — seeds and water entering the base
Asphalt alligator cracking (a network of small cracks)	Base failure or end-of-life — surface sealing will not fix this
Steps that rock or shift	Base or support has settled — a fall risk

What actually fails (the load-bearing failures):

• Drainage failure pitching toward the house — the highest-consequence failure. Routes runoff to the foundation and perimeter drain; over years it can contribute to basement water infiltration. Every other failure is cheaper to fix.
• Trip hazard lippage from frost heave — any raised edge at a walkway or step is a fall risk with real liability. Frost heave is common in Metro Vancouver in cold snaps when clay-rich soil is present.
• Asphalt base failure (alligator cracking) — once the sub-base is compromised, sealcoating is cosmetic. Replacement is the only fix.
• Concrete spalling from de-icing salts — sodium chloride accelerates freeze-thaw damage on concrete. In Metro Vancouver this is less common (salt is less used than eastern Canada) but still occurs on driveways near roads.

→ Frost-Heave-Lippage-Is-A-Trip-Hazard-And-A-Liability (Home Systems)

When to replace vs repair

What you see	Do this
1–3 heaved pavers, joints intact	Re-level — pull the unit, add or compact base material, reset and re-sand. Owner-doable on a small scale.
A heaved concrete slab section, slab otherwise intact	Lift/level — foam injection (polyjacking) or mudjacking. Pro job; less than half the cost of replacement.9
Asphalt surface fading, fine crazing, water soaking in	Reseal — not replace. Surface is intact; oxidation is normal wear.
Asphalt alligator cracking across a large area	Replace — base has failed. No surface treatment fixes base movement.
Concrete cracks ≤ 3 mm, isolated	Crack filler — DIY or pro; seal promptly in wet climates to prevent freeze-thaw widening.
Concrete spalling < 25 mm deep over most of the surface	Resurface — overlay at $4–$10/sq ft (BC, 2025) rather than full demolition.10
Concrete crumbling or with widespread structural cracking	Replace — resurfacing won’t bond to a structurally failed base.
Drainage slopes toward house, minor (new grading fix possible)	Regrade — add topping material, re-set edge pavers, or install a channel drain at the low point.
Drainage slopes toward house, slab must be lifted or re-poured	Pro job — involves demolition, possible drainage permit, and re-pour. Cross the Decision Lifecycle threshold (>$500 + irreversible).

Verdict — reversibility × cost framing:

• Small paver re-level (few units, self-done): reversible and low cost — just do it.
• Concrete polyjacking / foam lift: reversible in the sense that replacement remains possible afterward; cost $500–$3,000 depending on slab area. Crosses the >$500 threshold if larger — apply the The Decision Lifecycle (is the base still sound? will lifting hold?).
• Full driveway replacement (concrete or asphalt): irreversible + high cost ($5,000–$20,000+) — full Decision Lifecycle. The question is not “fix or replace” but “what material, what scope, and what drainage changes go in at the same time.”

→ Paver-Re-leveling-vs-Full-Replacement-Decision-Rule (Home Systems)

Typical cost (BC / Metro Vancouver)

Tier	What’s included	Range	Sources
DIY / parts only	Polymeric sand bag (~$40–$60), concrete crack filler ($10–$30), asphalt crack filler ($10–$25), concrete sealer ($0.50–$0.75/sq ft in materials)	Parts as listed	347
Basic — surface repairs and sealing	Pro crack sealing (concrete or asphalt): $100–$500 per job (minimum trip fee $100–$150); asphalt sealcoating $0.30–$0.45/sq ft; concrete sealing $1–$2/sq ft; paver polymeric sand reapplication $2–$5/sq ft (labour + materials)	$100–$800 per job depending on scope	843
Standard — paver re-level or concrete lift	Paver re-leveling (small area, pro): $7–$30/sq ft depending on scope; mudjacking $3–$6/sq ft; polyjacking (foam) $5–$25/sq ft; concrete resurfacing (overlay) $4–$10/sq ft (BC, 2025)	$300–$5,000 depending on area and method	91011
Premium — full replacement	Asphalt driveway replacement (installed): $3–$18/sq ft; single-car driveway (400 sq ft) $1,600–$7,200. Concrete driveway or patio (installed BC): $10–$22/sq ft; typical double-car driveway $6,000–$13,200. Interlocking pavers (installed): $18–$40/sq ft; driveway $7,200–$16,000	Full replacement typically $5,000–$20,000+ depending on material and site	6812

Metro Vancouver runs at the higher end of BC ranges — higher labour costs, seismic-ready concrete mixes, and drainage complexity all add cost. Demolition of an existing surface adds $2–$5/sq ft before the new surface.¹² Get 2–3 written quotes — a low quote that excludes base prep, grading, and drainage is the most common hidden cost.

Polyjacking (foam lift) vs. replacement: foam lift typically costs 20–30% of full replacement; it works when the base is structurally sound and only settlement has occurred. If the base itself has failed (washed out, organic-contaminated), lifting fills voids temporarily but the problem recurs.

How to maintain it — the procedures

Procedure: Spring inspection walkthrough — annually (after frost season)

Why: frost heave, base settlement, and water movement happen over winter; catching problems in March–April means repairs before the busy landscaping season and before a trip hazard causes a fall.

You’ll need: a straight board or level (~600 mm), a tape measure, a garden hose, ~30 min.

1. Walk every paved surface. Look for any unit, slab section, or step edge sitting higher than its neighbour.
2. MUST flag any lippage ≥ 6 mm (1/4”) — set a paver edge as reference, measure with a tape or feel with your finger. That is a trip hazard threshold.
3. Run a garden hose on the patio or walkway for 30 seconds. Watch where water flows: does it move away from the house in all zones, or does any area sheet back toward the foundation wall?
4. Check paver joints: visible erosion, soft sand, weed growth, or gaps?
5. Check concrete and asphalt for new cracks, flaking (spalling), or asphalt that has gone from black to grey.
6. Log findings with a photo and date.

Done when: you have a written/photo record of any issues and a decision on which to fix now vs. monitor.

Stop and call a pro if:

• Water is pooling against the foundation
• A slab or large paver area has heaved more than 25 mm
• Cracks are wider than 6 mm or actively growing
• Any step rocks underfoot

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Procedure: Polymeric sand reapplication — every 3–5 years (or when joints are visibly eroded)

Why: polymeric sand locks paver joints against weed infiltration and water washout. Eroded joints let water reach the base, accelerating heave and settlement.

You’ll need: polymeric sand (flex-polymer product for freeze-thaw climates — check label), a stiff broom or push broom, a garden hose with a fine mist setting, 2–4 hours dry weather window after application, knee pads.

1. MUST ensure the surface is bone dry before starting — wet pavers prevent bonding. Wait 24–48 hours after rain.
2. If existing sand is fully hardened and joints are mostly intact, you can top up over the existing material. If joints are soft, weedy, or heavily eroded: remove old sand with a joint scraper or oscillating tool before re-sanding.
3. Pour or broadcast polymeric sand across the paver surface. Work it into the joints with a stiff broom using diagonal sweeps.
4. Blow off excess sand from paver faces with a leaf blower (do not wash — you will wash sand out of the joints).
5. Compact the filled surface with a plate compactor (rental) or by tamping; this settles the sand in the joints. Add more sand and sweep again until joints are filled to within ~3 mm of the paver top.
6. MUST mist the entire surface with a fine spray — enough to activate the polymer binder, NOT enough to puddle or wash sand out. Follow the manufacturer’s application instructions for drying time (typically 24 hours above freezing).
7. Keep off the surface for 24 hours. Keep off vehicle traffic for 48–72 hours.

Done when: joints are filled, polymeric sand has cured firm, and the paver surface is clear of loose sand.

Stop and call a pro if:

• The base under joints is soft, hollow-sounding when tapped, or obviously washed out — re-sanding is cosmetic until the base is fixed
• You have a large area (>50 sq m) — renting a plate compactor and managing the application at scale is easier with a crew

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Procedure: Asphalt reseal — every 3–5 years

Why: asphalt oxidizes and dries out; sealcoating restores the binder, prevents fine cracks from deepening, and extends life by years per cycle.

You’ll need: asphalt crack filler (for any cracks ≥ 3 mm before sealing), asphalt sealer (bucket or driveway sealer), a squeegee or sealcoat brush applicator, painter’s tape for edges, ~4–6 hours dry weather window, latex gloves.

1. Wait 6–12 months after a new driveway before the first seal — new asphalt needs time to cure.²
2. Clean the surface thoroughly: sweep debris, pull weeds from cracks, degrease oil spots (oil prevents bonding).
3. Fill any cracks ≥ 3 mm with rubberized asphalt crack filler. Let cure per manufacturer instructions (usually 4–24 hours) before sealing over.
4. Edge with painter’s tape along house walls, garage trim, and any concrete borders.
5. Pour sealer and spread with squeegee or brush in long, even strokes — work section to section, maintain a wet edge to avoid lap marks.
6. Allow to dry per manufacturer directions before light foot traffic (typically 24 hours) and vehicle traffic (48–72 hours). Do not seal if rain is expected within 24 hours.

Done when: surface is uniformly coated, no missed spots, and fully dry before any traffic.

Stop and call a pro if:

• Asphalt has widespread alligator cracking — sealcoating over a failed base is cosmetic and won’t prevent worsening
• You want a uniform, professional result on a visible driveway — DIY sealing is functional but rarely looks as good as a squeegee machine applied by a contractor

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Procedure: Re-level individual heaved pavers — as needed after spring inspection

Why: individual paver units that have lifted off-grade due to frost heave or base settlement can be reset by removing the unit, adjusting the base material, and replacing — no demolition or concrete breaking involved.

You’ll need: a flat-head screwdriver or paver removal tool, a bucket of bedding sand or crusher dust, a rubber mallet, polymeric sand for re-jointing, a level.

1. Use the paver removal tool or screwdriver to pry up the heaved unit(s). Pull out the unit and set aside.
2. Inspect the base below. If it is hollow or loose, add bedding sand and compact with a hand tamper. If a large void is present, fill with crushed gravel first.
3. Re-set the paver unit on the leveled base. Check with a level that it matches surrounding units.
4. Tap firmly with the rubber mallet to seat it.
5. Sweep polymeric sand into the joints around the reset paver. Mist to activate.

Done when: the reset paver is flush with surrounding units (within ~3 mm), joints are filled, and the surface does not rock when stepped on.

Stop and call a pro if:

• More than ~10–15 pavers in an area have heaved — indicates a base problem, not isolated settlement; re-leveling piecemeal will not hold
• The base is wet, muddy, or clearly eroded — the water source needs to be resolved first

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Procedure: Concrete crack filling — when cracks appear

Why: in Metro Vancouver’s wet climate, an unfilled crack allows water to infiltrate the slab, freeze, expand, and widen the crack. Early filling prevents escalation to a structural problem.

You’ll need: concrete crack filler (polyurethane or epoxy for structural cracks; latex filler for surface crazing), a wire brush or angle grinder for crack prep, a caulk gun, a putty knife, ~30 min to 2 hours depending on length.

1. Clean the crack: wire-brush out loose debris, dust, and vegetation. For best adhesion, blow clean with compressed air.
2. For cracks wider than ~6 mm: use backer rod (foam rope) to fill the depth before applying sealant — this prevents the sealant from shrinking into a deep crack.
3. Apply crack filler with a caulk gun, slightly overfilling to allow for shrinkage.
4. Smooth with a putty knife. Feather the edges into the surrounding concrete.
5. Allow to cure per manufacturer (typically 24–48 hours before rain or traffic).

Done when: crack is filled flush, filler has cured, no gap or recession into the slab.

Stop and call a pro if:

• Cracks are wider than ~12 mm or have vertical displacement (one side is higher than the other) — indicates structural movement, not just surface shrinkage; filling alone will not address the cause
• You see the crack in the same location every year — recurring cracking signals base movement; have a contractor assess the sub-base

Maintenance calendar:

• Annually (spring, after frost): walkthrough inspection — drainage slope check, lippage check, joint condition check, crack inventory.
• Every 3–5 years: asphalt reseal; polymeric sand top-up in paver joints; concrete reseal.
• When joints show erosion or weed establishment: polymeric sand reapplication (do not wait for the 3-year interval if joints have clearly failed).
• On purchase or move-in: photograph drainage slope at all hardscape edges adjacent to the house; confirm no negative slope exists.
• If adding hardscape (patio extension, new path): confirm 2% away-from-house slope BEFORE the pour or before base material is compacted — correcting slope after the fact is expensive.

Strata reality

The hardscape responsibility split depends entirely on where the hardscape is relative to the strata plan:

• Your private patio or balcony slab (within your strata lot or limited common property): you are responsible for maintenance and minor repairs under Standard Bylaw 2. Confirm whether your strata plan assigns your patio slab as strata lot, limited common property, or common property — the bylaw follows the strata plan designation.¹³
• Common area driveways, visitor parking, walkways, and paths: the strata corporation is responsible for repair and maintenance under SPA s. 72 and Standard Bylaw 3.¹³ If you notice a trip hazard or drainage failure on common hardscape, report it in writing to the strata manager — documenting the notice protects you if someone falls.
• Shared strata hardscape — reporting duty: if you see a trip hazard (heaved paver, cracked step, raised slab edge) on common property, notify the strata manager in writing immediately. Under SPA s. 72, the strata must repair common property; under SPA s. 163, a strata owner who doesn’t report a known hazard may share liability if someone is injured.

Strata hardscape and drainage toward your unit: if common-area grading or a neighbour’s landscaping directs water toward your unit foundation, that is a strata or neighbour drainage issue. Document with photos and notify the strata manager. This connects directly to foundation-drainage-waterproofing (Home Systems).

Permit line: a significant hardscape project on your private patio (adding area, changing drainage) may require strata council approval under Standard Bylaw 8 (alterations). Projects that affect common property (e.g., adding a drain that ties into the building’s drainage system) require strata approval AND potentially a City permit. In Metro Vancouver, patio additions or driveway replacements may require a development permit if they change impervious surface area beyond a threshold — check with your municipality.

When you hire someone

Ask:

• Are you a licensed landscape contractor in BC, insured, with WCB coverage for your crew?
• For drainage work: do you have experience with site grading and drainage system design (not just surface paving)?
• Will this project require a City of Vancouver (or your municipality’s) permit, and will you pull it?
• For concrete or asphalt: does your quote include base preparation, compaction, drainage slope, and haul-away of demolition material, or is that extra?
• For paver work: what polymeric sand product are you using, and is it rated for freeze-thaw climates?
• Can you provide references for drainage-specific work in Metro Vancouver?

Verify the work:

• Before acceptance: stand on the new surface and run a garden hose for 30 seconds — water must sheet away from the house, not pool.
• Check slope with a 4-foot level: the surface should show a slight fall away from the building at every point adjacent to the house.
• For pavers: joints should be fully filled, no loose sand on the surface after cure, no rocking units.
• For concrete: surface should be free of voids, honeycombing, or surface cracking within the first week.
• Permit closed and inspection passed (if a permit was required).

Who to call

These become real when filled in the Tier-B MOCs:

• Licensed landscape contractor / hardscape contractor (drainage experience) → vendor-roster (Home Systems). Fill: company name, phone, WCB number, notes on drainage work experience in Metro Vancouver.
• Asphalt contractor (local, with sealcoating services) → vendor-roster (Home Systems). Fill: company name, phone — BC-based companies include Burnaby Blacktop (604) 428-2885, TopWest Asphalt (Abbotsford area) 604-755-0300.
• Concrete lifting / polyjacking contractor → vendor-roster (Home Systems). Fill: True Level Concrete (Lower Mainland) 604-589-4800 is one option — verify current pricing and service area.
• Strata manager → Strata MOC. Fill: manager name, after-hours line, process for reporting common-area hazards in writing.
• Insurer / broker → insurance-warranties (Home Systems). Fill: confirm whether your policy covers a trip-hazard liability claim arising from hardscape on your private patio or strata common area.

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Sources

Idea Compass

North: Where this comes from

• Grounds-Landscaping (Home Systems) — parent system
• Hardscape-Must-Slope-2pct-Away-From-Foundation (Home Systems) — the drainage physics everything rests on
• BC Building Code 2018, s. 9.14.6 — the drainage slope mandate

East: Tensions / failure

• Frost-Heave-Lippage-Is-A-Trip-Hazard-And-A-Liability (Home Systems) — the safety consequence of ignored heave
• foundation-drainage-waterproofing (Home Systems) — what happens when hardscape routes water toward the house instead of away
• Paver-Re-leveling-vs-Full-Replacement-Decision-Rule (Home Systems) — the cost-decision boundary

South: Where this leads

• vendor-roster (Home Systems) — the hardscape and asphalt contractor named-resource cards
• insurance-warranties (Home Systems) — trip-hazard liability coverage confirmation
• retaining-walls (Home Systems) — hardscape and walls often share a drainage and slope system
• irrigation (Home Systems) — irrigation systems and hardscape interact at drainage design (catch basins, French drains)

West: What’s similar

• Polymeric-Sand-Is-The-Joint-Defence-System (Home Systems) — the maintenance mechanism inside paver joints
• retaining-walls (Home Systems) — same profile (detached only); same drainage-first design logic
• The Decision Lifecycle — the repair-vs-replace decision framework applied to paving replacement

Footnotes

1. BC Building Code 2018, Division B, Part 9, Section 9.14.6.1 — site grading must prevent water accumulation at or near the building; minimum 2% fall required for hardscape within 3 m of foundation — https://free.bcpublications.ca/civix/document/id/public/bcbc2018/bcbc_2018dbp9s914 ↩ ↩² ↩³

2. Burnaby Blacktop, Greater Vancouver asphalt contractor — sealcoating frequency: every 2–3 years in extreme freeze-thaw climates; every 1–2 years under heavy traffic; new asphalt wait 6–12 months before first seal — https://burnabyblacktop.ca/blog/how-often-should-you-sealcoat-your-driveway/ ↩ ↩²

3. BC Brick, a BC building supply retailer — polymeric jointing sand for paver joints; Gator Max and flex-polymer products for freeze-thaw climates — https://www.bcbrick.com/products/pavers/paver-jointing-options/polymeric-jointing-sand/ ↩ ↩² ↩³

4. Greenbuildingcanada.ca, Canadian home building resource — concrete sealing: professional $1–$2/sq ft; DIY materials $0.50–$0.75/sq ft; reseal every 3–5 years in cold climates; concrete installation BC $10–$22/sq ft — https://greenbuildingcanada.ca/concrete-driveway-cost-canada/ ↩ ↩² ↩³

5. FormTerra Designs, Metro Vancouver hardscape contractor — drainage-first build principles; deep base excavation (200–300 mm), road-base aggregate compacted in 50 mm lifts, edge restraints — https://formterra.ca/services/pavers/ ↩ ↩²

6. Vancouver General Contractors, Metro Vancouver — driveway replacement cost guide 2026; interlocking pavers $18–$40/sq ft, 400 sq ft single-car $7,200–$16,000; pavers rated 30–50 year lifespan — https://vancouvergeneralcontractors.com/driveway-replacement-cost-vancouver/ ↩ ↩²

7. King Services, Canadian concrete contractor — concrete resurfacing in Vancouver $4–$10/sq ft (2025); resurfacing appropriate for surface spalling and deteriorating concrete before structural failure — https://kingservices.ca/blog/what-should-you-know-about-concrete-resurfacing-services-in-canada-costs-benefits-and-what-to-expect ↩ ↩²

8. Vancouver General Contractors, Metro Vancouver — asphalt driveway costs and lifespan: $4–$8/sq ft installed; lifespan 15–20 years; reseal every 3–5 years; single-car driveway $1,600–$3,200 — https://vancouvergeneralcontractors.com/driveway-replacement-cost-vancouver/ ↩ ↩² ↩³

9. A1 Concrete, concrete repair guide — mudjacking $3–$6/sq ft; polyjacking $5–$25/sq ft; foam lifting saves up to 85% compared to full replacement; appropriate when base is structurally sound — https://www.a1concrete.com/concrete-repair-learning-center/concrete-leveling-costs ↩ ↩²

10. King Services, Canadian concrete contractor — concrete resurfacing Vancouver $4–$10/sq ft (2025); removes tripping hazards; faster and lower cost than full replacement — https://kingservices.ca/blog/what-should-you-know-about-concrete-resurfacing-services-in-canada-costs-benefits-and-what-to-expect ↩ ↩²

11. True Level Concrete, Metro Vancouver concrete leveling — polyurethane foam injection lifts settled slabs; service Lower Mainland (604) 589-4800; repair trip hazards, negative slope, and voids without demolition — https://www.truelevelconcrete.ca/services/concrete-lifting-leveling/ ↩

12. Burnaby Blacktop, Greater Vancouver asphalt contractor — asphalt driveway Vancouver $3–$18+/sq ft depending on base condition and site access; demolition and haul-away is an additional cost — https://burnabyblacktop.ca/blog/asphalt-driveway-cost-per-square-foot-in-vancouver/ ↩ ↩²

13. Province of BC, BC government — strata division of repair duties; SPA s. 72 (common property); Standard Bylaws 2, 3, and 8 — https://www2.gov.bc.ca/gov/content/housing-tenancy/strata-housing/operating-a-strata/repairs-and-maintenance/division-of-repair-duties ↩ ↩²