Is a $12k Ottawa interlock driveway a fair price?

A $12,000 interlock driveway in Ottawa falls within the typical range for an average-sized residential driveway, but whether it's fair depends entirely on the size, materials, and scope of work included.

For context, new interlock driveways in Ottawa typically cost $12 to $22 per square foot installed, including proper base preparation. A standard Ottawa driveway (40-60 square metres or roughly 430-650 square feet) would range from $5,200 to $14,300 at those rates. Your $12,000 quote suggests either a mid-sized driveway with standard pavers, or a smaller driveway with premium materials or complex patterns.

What should be included at this price point: The quote should cover complete excavation to proper depth (minimum 450mm in Ottawa due to our 1.2-1.5 metre frost line), removal and disposal of existing material, installation of geotextile fabric if you have clay soil (common in Barrhaven, Orleans, Gloucester), 300mm of compacted Granular B sub-base, 150mm of compacted Granular A base, bedding sand, the pavers themselves, cutting and fitting, polymeric sand installation, and final compaction. This level of base preparation is non-negotiable in Ottawa's freeze-thaw climate.

Red flags to watch for: Be wary if the contractor suggests less than 450mm total base depth, skips geotextile fabric on clay soils, or doesn't specify compaction in lifts. Budget contractors sometimes quote attractive prices but cut corners on base preparation — this leads to settling, heaving, and paver displacement within 2-3 Ottawa winters, requiring expensive tear-out and re-installation.

Get specifics on materials: Standard 60mm concrete pavers are appropriate for most residential driveways, while 80mm pavers handle heavier vehicles better. Premium pavers (natural stone look, multiple colours, complex patterns) can add $3-5 per square foot to the total cost. Ask about the specific paver brand, thickness, and warranty.

Compare multiple quotes and ensure each contractor specifies the same base depth, compaction methods, and materials. The cheapest quote often reflects shortcuts in base preparation that aren't visible until after the first winter. A properly installed interlock driveway in Ottawa should last 25-30+ years with routine maintenance (polymeric sand replacement every 3-5 years).

Need help finding qualified paving contractors for comparison quotes? Ottawa Driveways can match you with local interlock specialists through the Ottawa Construction Network.