Questions to Ask Before Hiring a Patio Contractor

What Should You Ask Before Hiring a Patio Contractor?

Ask what depth of base goes in and how it will be compacted, which direction the patio drains and at what percentage, the specific material specifications, who pulls the permit, and what the warranty covers on materials and workmanship. The base decides whether the patio lasts 5 years or 30 years: expect 6 inches of compacted Class II base with 1 inch of bedding sand under pavers, or 4 inches of gravel under 4 inches of concrete with control joints every 8 feet. Drainage should run away from the home at a minimum of 1 percent.

What Is the Base Specification?

Ask: “What depth of base material will you install and how will you compact it?” A quality answer for a paver patio: “6 inches of compacted Class II base and 1 inch of bedding sand, compacted with a plate compactor in lifts.” A quality answer for a concrete patio: “4 inches of compacted gravel base under 4 inches of concrete with control joints every 8 feet.” A contractor who cannot describe the base specification has not thought through the installation standard — and the base is the most important determinant of whether the patio lasts 5 years or 30 years.

How Will You Handle Drainage?

Ask: “Which direction will the patio slope for drainage and what is the percentage?” The minimum: 1 percent away from the home. For a large patio or complex shape: ask about channel drains. Drainage must be planned before the base is excavated — it cannot be retrofitted after installation without significant rework. Confirm the discharge point for any surface drainage (it should not pond adjacent to the home’s foundation). (For more on this, see Common Patio Installation Mistakes and How to Avoid Them.)

What Are the Specific Material Specs?

For pavers: ask the manufacturer, product line, and thickness. Paver thickness matters: 2-inch-thick pavers (the residential standard) vs. 1.5-inch pavers (lighter duty). For concrete: ask the PSI strength, the air-entrainment spec (required for cold climates), and whether fiber reinforcement or rebar will be used. For natural stone: ask the stone type, source region (domestic vs. imported), and thickness. Material specs should appear in the written contract — verbal descriptions are not enforceable.

Working With a Contractor on This Project

Getting the right outcome on any home services project starts before the work begins. A few consistent practices make the difference between a smooth project and a frustrating one.

Get at least two or three quotes. A single quote gives you no basis for comparison. Two or three quotes reveal the market rate for the work, expose scope differences between bidders, and let you assess contractor communication quality before any commitment is made. The lowest bid is not automatically the best value if the scope is thin or the materials are underspecified.

Ask for licenses and insurance before work starts. Verify current general liability insurance and, for any work involving workers on your property, workers compensation coverage. Licensing requirements vary by state and trade; confirm the specific requirements in your jurisdiction. A licensed contractor who carries appropriate insurance protects both parties if something goes wrong during the project.

Get the scope in writing. A written proposal that specifies materials, labor scope, timeline, what is included (permits, cleanup, disposal), and warranty terms is the foundation of a professional engagement. Verbal agreements on any of these points invite misunderstanding. For any project over $500, written scope is non-negotiable.

Clarify the payment schedule upfront. A reasonable payment schedule ties major payments to project milestones: a deposit at signing, a payment at material delivery or project start, and a final payment at completion after a walkthrough confirms satisfaction. A contractor who requires full payment upfront before work begins is a red flag in any trade.

Making a Confident Decision

The information in this article is designed to help you ask better questions of the professionals you work with, evaluate their answers with more confidence, and understand the decisions involved in this type of home services project. It is not a substitute for professional assessment of your specific home. (For more on this, see Questions to Ask a Patio Installer.)

Every home is different. Roof slopes, local weather, tree exposure, soil conditions, and existing system condition all affect what the right solution is for your specific situation. The general principles here apply broadly, but a professional who assesses your home in person will give you guidance that accounts for the details that general articles cannot.

When you are ready to move forward, getting at least two or three quotes from licensed, insured, local contractors is the most important practical step. It lets you compare approaches, assess contractor quality, and confirm that the solution proposed matches your specific situation and budget.

Patio Cost at a Glance

Cost Factor	Typical Range	Notes
Concrete patio	$8 to $22 per sq ft	($3,200 to $8,800 for 400 sq ft)
Paver patio	$10 to $25 per sq ft	($4,000 to $10,000 for 400 sq ft)
Natural stone patio	$15 to $30 per sq ft	($6,000 to $12,000 for 400 sq ft)
Overall range	$2,400 to $7,000 on average	Base preparation and excavation are included in the per-square-foot rates above. Steps add $150 to $500 per step section.