How much does a pool cost in London, Ontario in 2026? It’s one of the first questions homeowners ask when starting their research—and the answer depends on several key factors. From pool type and size to backyard conditions and upgrades, costs can vary significantly. In this guide, we break down realistic price ranges and explain exactly what drives pool costs so you can plan your project with confidence.
Average Cost of an In-Ground Swimming Pool in London ON
For most homeowners in the London area, an in-ground pool typically falls within these ranges:
Basic pool: $60,000 – $80,000
Mid-range pool: $80,000 - $120,000
High-end custom pool: $120,000 +
These numbers include more than just the pool itself—they reflect real projects with patios, equipment, and proper installation.
Why Pool Costs Have Increased in Recent Years
It’s important to understand that pool construction costs today are significantly higher than they were just a few years ago.
Since 2020, the industry has experienced substantial increases in material and equipment pricing. Key components such as steel, concrete, stone, plumbing materials, and pool equipment have all seen notable cost increases from manufacturers and suppliers.
The result is that projects which may have cost considerably less prior to 2020 now require a higher investment to complete properly and to current standards.
While this can be surprising for homeowners who are early in their research, it underscores the importance of working with a builder who prioritizes quality materials and proper installation methods—ensuring your investment performs well over the long term.
What Drives the Cost Up?
Several key factors affect the final price of your pool:
1. Type of Pool (Concrete vs Fibreglass vs Vinyl Liner)
Concrete and fibreglass pools tend to cost more upfront with vinyl liner swimming pools bring the best value for the investment.
2. Size and Design
Larger pools, custom shapes, and features like tanning ledges or waterfalls will increase cost.
3. Backyard Conditions
Access to your yard, soil conditions, and grading can all impact excavation, labor costs. Depending on the grade, a retaining wall could be required.
4. Additional Features
Common upgrades which can add $10,000–$100,000+ include
Automatic covers
Lighting
Landscaping and patios
Outdoor structures (pergola etc)
Water and fire features
5. Engineered stamped drainage plans
6. ESA bonding and grounding (copper wire bonding) - specifically for fibreglass pools
7. Permits, inspections and compliance requirements
8. The Most Important Step You Don’t See: Proper Base & Backfill
One of the most critical parts of a pool project happens behind the scenes—and it’s something most homeowners never think to ask about. The materials and methods used for the base and backfill around your pool play a huge role in how well your pool holds up over time.
In our area, with constant freeze-thaw cycles, the ground is always expanding and contracting. If improper or lower-quality materials are used, this can lead to:
Shifting or settling
Cracking in the pool structure or surrounding concrete
Long-term structural issues
Surface ponding and soggy yards
Runoff toward adjacent properties
Erosion/washouts
Soil or mixed fill can hold water instead of letting it drain, creating saturated areas. We’re seeing more cases where builders use cheaper or inappropriate backfill materials to make their quotes look more competitive upfront. While it may reduce the initial price, it often leads to costly repairs later on.
Using the right materials and proper compaction techniques helps ensure your pool remains stable and performs the way it should for years to come. This is one of those areas where cutting corners isn’t visible right away—but it can make all the difference in protecting your investment long-term.
Is It Worth It?
For many homeowners, a pool becomes the centrepiece of their outdoor space. It’s not just about swimming—it’s about creating a place to relax, entertain, and spend time with family.
If you’re considering a pool, the best next step is to talk through your ideas with a builder who understands local conditions and can give you a realistic plan. Every project is different—but having a clear budget range early on will save you time and help you make better decisions.