Patio with Fire Pit in Ontario: Permit, Safety, and Design

You want a fire pit on your patio, but you're not sure if you need a permit or how far it needs to be from your house. Ontario has specific rules about open-air burning, and your municipality likely has its own fire safety bylaws that apply even to permanent fire features.

Here's what you need to know about permits, setbacks, safety codes, and design choices for patios with fire pits in Ontario.

Do You Need a Permit for a Patio Fire Pit in Ontario?

The patio itself usually doesn't need a permit — most ground-level concrete or interlock patios don't require building permits in Kitchener, Waterloo, or Cambridge. But the fire pit might.

When You Need a Permit

You'll need a permit if:

• Your fire pit is permanent and built-in (e.g., stone or brick structure with gas lines)
• You're running a natural gas line to the fire pit
• The fire pit has a roof or covered structure above it (pergola, gazebo, screened porch)
• Your municipality requires open-air burning permits for recreational fires

Gas line work always requires a permit and a licensed gas fitter. Even if the fire pit itself doesn't need a building permit, the gas connection does.

When You Don't Need a Permit

Portable fire pits (metal bowls, chimineas, propane units) typically don't require permits, but you still need to follow fire safety bylaws.

Check with your local fire department before you build. Kitchener, Waterloo, and Cambridge all regulate recreational fires, and violating the bylaw can result in fines up to $5,000 or more.

If you're building a deck with a fire pit instead of a patio, be aware that deck fire pits have stricter requirements. See hot tub on deck structural checklist for similar structural considerations.

Ontario Fire Safety Rules for Patios

Ontario's Fire Code (O. Reg. 213/07) and local bylaws set minimum distances between fire pits and structures, property lines, and combustible materials.

Setback Requirements

Provincial guidelines recommend:

• 3 meters (10 feet) from any structure (house, garage, shed, fence)
• 3 meters (10 feet) from property lines
• 1.5 meters (5 feet) from overhanging branches or combustible materials

Local bylaws may be stricter. Some municipalities require 5 meters (16 feet) from structures. Always check your city's fire bylaw.

Fire Size Limits

Most KWC municipalities limit recreational fire pits to:

• Maximum 0.6 meters (2 feet) diameter
• Maximum 0.6 meters (2 feet) height
• Wood only (no garbage, treated lumber, plastics)

Larger custom fire pits may be allowed if they meet specific safety standards and receive approval from the fire department.

When You Can't Burn

You cannot use your fire pit:

• During fire bans (common during dry summer conditions)
• When winds exceed 20 km/h
• Between 2:00 AM and 6:00 AM (some municipalities)
• If the fire creates a smoke nuisance to neighbours

Check your municipality's website or call the fire department before lighting your first fire.

Built-In vs. Portable Fire Pits

| Feature | Built-In Fire Pit | Portable Fire Pit |

|---------|------------------|-------------------|

| Cost | $2,000–$8,000+ installed | $150–$2,500 |

| Permit | Often yes (gas line required) | Usually no |

| Fuel Options | Natural gas or propane | Wood, propane, or gel |

| Permanent | Yes | Can be moved or stored |

| Resale Value | Adds value if well-designed | No impact |

| Maintenance | Seasonal cleaning, gas line inspection | Empty ash, cover in winter |

Built-in fire pits work best when integrated into the patio design from the start. They look polished, eliminate the need to store equipment, and create a focal point for seating.

Portable units give you flexibility. You can move them for parties, store them in winter, and avoid permit hassles.

Best Patio Materials for Fire Pits

Your patio material matters. Some materials handle heat better than others, and you'll want a non-combustible surface directly under and around the fire pit.

Concrete Patios

Cost: $12–$25 per square foot installed

Concrete handles heat well and provides a stable, level base for fire pits. Stamped or coloured concrete adds visual interest without the gaps of pavers.

Pros:

• Non-combustible
• Low maintenance
• Can integrate fire pit into pour

Cons:

• Cracks in freeze-thaw cycles (seal annually)
• Heat can discolour surface over time

Interlock Pavers

Cost: $20–$40 per square foot installed

Pavers are popular for fire pit patios because they're modular, easy to repair, and handle freeze-thaw cycles better than poured concrete.

Pros:

• Easy to replace damaged pavers
• Excellent drainage
• Wide range of styles and colours

Cons:

• Joints can shift (polymeric sand helps)
• Weeds grow in joints (sealant or re-sanding required)

Use concrete or natural stone pavers near the fire pit — not rubber or composite pavers, which can melt.

Natural Stone

Cost: $30–$60 per square foot installed

Flagstone, granite, or limestone patios offer a premium look and natural heat resistance.

Pros:

• Highly heat-resistant
• Unique, high-end appearance
• Very durable

Cons:

• Expensive
• Irregular surface (harder to place furniture)
• Requires sealing

For more patio material options, see patio cost ontario complete guide.

Fire Pit Design Ideas for Ontario Patios

Sunken Fire Pit

A sunken fire pit sits 12–18 inches below grade, with built-in seating around the perimeter. It's sheltered from wind and creates an intimate gathering space.

Cost: $5,000–$15,000 installed

Requires excavation, retaining walls, and drainage planning. Works best in backyards with good drainage and no high water table.

Gas Fire Table

A fire table combines a coffee table with a gas fire feature in the center. It's functional, modern, and doubles as a surface for drinks and snacks.

Cost: $800–$3,500

Available in propane (portable) or natural gas (requires gas line). Most fire tables use lava rock or fire glass instead of logs.

Corner Fire Pit with Curved Seating

Place the fire pit in one corner of the patio with curved built-in seating or a circular arrangement of chairs. This maximizes usable patio space and creates a defined conversation area.

Works well on medium to large patios (250+ square feet).

Fire Pit with Pergola

A pergola over part of the patio provides shade during the day while leaving the fire pit open to the sky. Make sure the pergola structure is at least 3 meters (10 feet) away from the fire pit to meet setback rules.

If you're considering a pergola, check pergola covered deck permit requirements for similar patio applications.

Fire Pit Fuel Options

Wood-Burning

Cost: Firewood $100–$150 per cord (2026)

Classic campfire experience with crackling sounds and wood smoke smell. Requires more maintenance (ash removal, chimney if enclosed) and produces smoke that can bother neighbours.

Pros:

• Traditional ambiance
• Inexpensive fuel
• No gas lines needed

Cons:

• Smoke and ash
• Requires firewood storage
• More cleanup

Natural Gas

Cost: Gas line installation $500–$2,000; fuel cost ~$1–$2 per hour

Requires a licensed gas fitter to run a line from your meter to the fire pit. Once installed, you have unlimited fuel with no storage or refills.

Pros:

• No refills or storage
• Clean burning (no smoke or ash)
• Instant on/off with adjustable flame

Cons:

• Requires permit and gas line installation
• Permanent location
• Higher upfront cost

Propane

Cost: 20 lb propane tank $30–$50; refills $15–$25

Portable option that burns clean like natural gas but uses refillable tanks. Most portable fire pits and fire tables use propane.

Pros:

• Portable
• Clean burning
• No permit required

Cons:

• Tanks need refilling
• Tank storage (must be outdoors)
• Runs out mid-evening if you forget to check

How Much Does a Patio with Fire Pit Cost in Ontario?

Expect to pay $3,000–$12,000+ depending on patio size, materials, and fire pit style.

Sample Project Costs (2026)

Budget Option:

• 200 sqft concrete patio: $2,400–$5,000
• Portable wood-burning fire pit: $200–$600
• Total: $2,600–$5,600

Mid-Range Option:

• 250 sqft interlock paver patio: $5,000–$10,000
• Propane fire table: $1,200–$2,500
• Total: $6,200–$12,500

Premium Option:

• 300 sqft natural stone patio: $9,000–$18,000
• Built-in natural gas fire pit: $3,000–$8,000
• Gas line installation: $800–$2,000
• Total: $12,800–$28,000

These are installed costs including materials, labour, and excavation. Permits (if required) add $100–$500.

Patio Drainage for Fire Pit Areas

Ontario's freeze-thaw cycles mean your patio needs proper drainage to prevent ice buildup and cracking.

Key drainage considerations:

• Slope: Minimum 2% grade away from house (1/4 inch per foot)
• Base: 4–6 inches of compacted granular base (type A or B gravel)
• Edging: Restraint edging to prevent paver shifting

If your patio is adjacent to your house, make sure water doesn't pool against the foundation. See deck drainage under deck water management for drainage principles that apply to patios too.

Safety Tips for Fire Pit Use

• Keep a garden hose or fire extinguisher within 10 feet
• Never leave a fire unattended — especially with kids or pets nearby
• Fully extinguish fires before going inside (drown with water, stir, drown again)
• Store firewood at least 10 feet from the fire pit
• Check wind conditions — don't light fires on windy days
• Avoid accelerants (gasoline, lighter fluid on open fires)

If you have young children, consider a fire table with tempered glass wind guard instead of an open fire bowl.

Common Questions

Can I put a fire pit on a wood deck in Ontario?

Not recommended. Wood is combustible, and most fire pits generate enough heat to scorch or ignite decking. If you must use a fire pit on a deck, use a propane fire table with legs (not direct contact) and place a fireproof mat underneath. Check your insurance policy — many exclude deck fires. For deck fire considerations, see pool deck ideas ontario for heat-related material concerns.

Do I need a permit for a propane fire pit in Kitchener?

No building permit is required for portable propane fire pits, but you must still follow the city's Outdoor Fire Bylaw. This includes setback distances (typically 3 meters from structures), fire size limits, and prohibited burning hours. Call Kitchener Fire Department at 519-741-2424 to confirm current rules.

How far should a fire pit be from a fence in Ontario?

At least 3 meters (10 feet) from wood fences or other combustible structures. Check your municipal bylaw — some cities require more. Vinyl fences can warp from heat even at 10 feet, so consider a greater distance or install a fireproof screen.

Can I use my fire pit in winter in Ontario?

Yes, as long as there's no active fire ban and you follow all bylaw requirements. Clear snow from around the fire pit and ensure proper ventilation. Never use a fire pit in an enclosed space — carbon monoxide buildup can be fatal. For winter outdoor space care, see winter deck care ontario.

What's the best size patio for a fire pit?

Minimum 150–200 square feet to comfortably fit a fire pit and seating for 4–6 people. For larger groups or multiple seating areas, plan for 250–400 square feet. Leave at least 3 feet of clearance between the fire pit edge and chair backs for safe movement.