CMHC Study Finds Housing Construction Productivity Has Fallen 37% Since 2001 — Ontario Drives Bulk of National Decline
A New Statistics Canada Study Reveals Residential Construction Workers Produce Far Less Than They Did Two Decades Ago — And the Inefficiency Is Showing Up in Every Quote
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Published: April 16, 2026
Credit: Shutterstock
Key Takeaways
•Labour productivity in Canada's residential construction sector fell 37.3% between 2001 and 2023, even as the broader business sector grew 12.5% over the same period
•Ontario accounts for more than half of the national decline and is the only province where productivity dropped across every firm size
•Small firms with fewer than 20 employees drove the majority of the drop — the same firms most Canadian homeowners hire for renovations and builds
A CMHC-backed study published April 15, 2026, has put a number on something Canadian homeowners have felt for years: the people building and renovating homes are getting less done per worker than they used to — significantly less. Labour productivity in residential construction fell by a cumulative 37.3% between 2001 and 2023, according to research authored by CMHC deputy chief economist Aled ab Iorwerth and Statistics Canada economists Jenny Watt and Wulong Gu. Over the same period, the overall business sector grew its productivity by 12.5%.
That gap matters beyond the spreadsheet. When each worker produces less output than they did two decades ago, the cost of that inefficiency flows directly into the price of every new home and renovation project. Materials get the headlines when prices spike, but labour productivity is the quiet variable that never corrects — and it helps explain why quotes keep climbing even when lumber stabilizes.
The study's most striking finding is geographic. Ontario alone accounts for more than half of the entire national productivity decline, and it is the only province where productivity fell across every firm size. For the roughly two million Canadian homeowners who renovate in any given cycle — spending an average of $37,000 each — this is the hidden cost driver that rarely makes the quote breakdown. It sits alongside the affordability pressures already spreading beyond Toronto and Vancouver and makes the full picture harder to ignore.
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What the Study Measured
The study's firm-size decomposition is where the headline finding becomes personally relevant to anyone hiring a contractor. Residential construction in Canada is dominated by small firms, and those small firms account for nearly all of the productivity decline.
The breakdown is measurable and lopsided:
Firm Size
Share of the 37.3% Productivity Decline
2023 Employment Share
Fewer than 5 employees
–22.4 percentage points
~30%
5 to 19 employees
–16.1 percentage points
~36%
20 to 49 employees
Modest negative contribution
~15%
50+ employees
Positive contribution
~19%
Firms with fewer than five employees — sole operators and micro-crews — contributed more than 22 percentage points of the total 37.3% drop. Firms with five to 19 employees added another 16 points. Together, small firms with fewer than 20 employees account for the overwhelming majority of lost productivity. Only firms with more than 50 employees made a positive contribution over the study period.
That pattern has a direct consequence for homeowners. About 60% of construction firms in Canada are microbusinesses with fewer than five employees, according to a federal government briefing note on the housing workforce. These are the contractors most Canadians actually hire for renovations, additions, and smaller builds.
Small firms are also the ones most exposed when material costs shift due to tariff changes — they lack the purchasing power to absorb price swings the way larger operations can.
Consolidation Is Not the Fix
A natural assumption is that larger firms must be dramatically more efficient. The study challenges this. Between 2001 and 2023, the employment share of small firms (under 20 employees) fell from nearly 80% to about 66% of sector jobs — a meaningful shift toward larger operators. But that consolidation boosted overall productivity by less than five percent.
The reason: the productivity advantage of larger firms over the smallest is only about 10%. That gap is real but modest. A homeowner hiring a 50-person firm is not automatically getting a project that runs twice as fast or costs half as much as one from a five-person crew. The inefficiencies are structural, not simply a function of headcount.
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Small Firms Drive the Decline
The study's firm-size decomposition is where the headline finding becomes personally relevant to anyone hiring a contractor. Residential construction in Canada is dominated by small firms, and those small firms account for nearly all of the productivity decline.
The breakdown is measurable and lopsided:
Firm Size
Share of the 37.3% Productivity Decline
2023 Employment Share
Fewer than 5 employees
–22.4 percentage points
~30%
5 to 19 employees
–16.1 percentage points
~36%
20 to 49 employees
Modest negative contribution
~15%
50+ employees
Positive contribution
~19%
Firms with fewer than five employees — sole operators and micro-crews — contributed more than 22 percentage points of the total 37.3% drop. Firms with five to 19 employees added another 16 points. Together, small firms with fewer than 20 employees account for the overwhelming majority of lost productivity. Only firms with more than 50 employees made a positive contribution over the study period.
That pattern has a direct consequence for homeowners. About 60% of construction firms in Canada are microbusinesses with fewer than five employees, according to a federal government briefing note on the housing workforce. These are the contractors most Canadians actually hire for renovations, additions, and smaller builds.
Small firms are also the ones most exposed when material costs shift due to tariff changes — they lack the purchasing power to absorb price swings the way larger operations can.
Consolidation Is Not the Fix
A natural assumption is that larger firms must be dramatically more efficient. The study challenges this. Between 2001 and 2023, the employment share of small firms (under 20 employees) fell from nearly 80% to about 66% of sector jobs — a meaningful shift toward larger operators. But that consolidation boosted overall productivity by less than five percent.
The reason: the productivity advantage of larger firms over the smallest is only about 10%. That gap is real but modest. A homeowner hiring a 50-person firm is not automatically getting a project that runs twice as fast or costs half as much as one from a five-person crew. The inefficiencies are structural, not simply a function of headcount.
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Ontario: The Epicentre of the National Decline
The study's firm-size decomposition is where the headline finding becomes personally relevant to anyone hiring a contractor. Residential construction in Canada is dominated by small firms, and those small firms account for nearly all of the productivity decline.
The breakdown is measurable and lopsided:
Firm Size
Share of the 37.3% Productivity Decline
2023 Employment Share
Fewer than 5 employees
–22.4 percentage points
~30%
5 to 19 employees
–16.1 percentage points
~36%
20 to 49 employees
Modest negative contribution
~15%
50+ employees
Positive contribution
~19%
Firms with fewer than five employees — sole operators and micro-crews — contributed more than 22 percentage points of the total 37.3% drop. Firms with five to 19 employees added another 16 points. Together, small firms with fewer than 20 employees account for the overwhelming majority of lost productivity. Only firms with more than 50 employees made a positive contribution over the study period.
That pattern has a direct consequence for homeowners. About 60% of construction firms in Canada are microbusinesses with fewer than five employees, according to a federal government briefing note on the housing workforce. These are the contractors most Canadians actually hire for renovations, additions, and smaller builds.
Small firms are also the ones most exposed when material costs shift due to tariff changes — they lack the purchasing power to absorb price swings the way larger operations can.
Consolidation Is Not the Fix
A natural assumption is that larger firms must be dramatically more efficient. The study challenges this. Between 2001 and 2023, the employment share of small firms (under 20 employees) fell from nearly 80% to about 66% of sector jobs — a meaningful shift toward larger operators. But that consolidation boosted overall productivity by less than five percent.
The reason: the productivity advantage of larger firms over the smallest is only about 10%. That gap is real but modest. A homeowner hiring a 50-person firm is not automatically getting a project that runs twice as fast or costs half as much as one from a five-person crew. The inefficiencies are structural, not simply a function of headcount.
Important
Ontario homeowners face a compounding challenge: the province where construction demand is highest is also the province where construction productivity has declined the most, across every size of firm.
The rest of the country is not uniform. Alberta and Quebec also experienced declines, largely driven by small firms. But a few provinces moved in the opposite direction — Prince Edward Island, Nova Scotia, and New Brunswick each achieved modest productivity gains. British Columbia made a positive contribution at the national level, though largely because its share of construction activity grew (from 12.9% of jobs to 19.2%) rather than because individual firms became more efficient.
The contrast matters. Ontario's broad-based decline is not an inevitable feature of residential construction. Other provinces, operating under different conditions, managed to hold the line or improve. For Ontario homeowners comparing renovation quotes, the implication is that the province's housing start shortfall is compounded by a workforce that is producing less per person than it was a generation ago. Add development charges that layer tens of thousands onto new-home prices, and the full cost structure facing Ontario buyers and renovators becomes clearer.
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Why Productivity Keeps Falling
The study's firm-size decomposition is where the headline finding becomes personally relevant to anyone hiring a contractor. Residential construction in Canada is dominated by small firms, and those small firms account for nearly all of the productivity decline.
The breakdown is measurable and lopsided:
Firm Size
Share of the 37.3% Productivity Decline
2023 Employment Share
Fewer than 5 employees
–22.4 percentage points
~30%
5 to 19 employees
–16.1 percentage points
~36%
20 to 49 employees
Modest negative contribution
~15%
50+ employees
Positive contribution
~19%
Firms with fewer than five employees — sole operators and micro-crews — contributed more than 22 percentage points of the total 37.3% drop. Firms with five to 19 employees added another 16 points. Together, small firms with fewer than 20 employees account for the overwhelming majority of lost productivity. Only firms with more than 50 employees made a positive contribution over the study period.
That pattern has a direct consequence for homeowners. About 60% of construction firms in Canada are microbusinesses with fewer than five employees, according to a federal government briefing note on the housing workforce. These are the contractors most Canadians actually hire for renovations, additions, and smaller builds.
Small firms are also the ones most exposed when material costs shift due to tariff changes — they lack the purchasing power to absorb price swings the way larger operations can.
Consolidation Is Not the Fix
A natural assumption is that larger firms must be dramatically more efficient. The study challenges this. Between 2001 and 2023, the employment share of small firms (under 20 employees) fell from nearly 80% to about 66% of sector jobs — a meaningful shift toward larger operators. But that consolidation boosted overall productivity by less than five percent.
The reason: the productivity advantage of larger firms over the smallest is only about 10%. That gap is real but modest. A homeowner hiring a 50-person firm is not automatically getting a project that runs twice as fast or costs half as much as one from a five-person crew. The inefficiencies are structural, not simply a function of headcount.
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What This Means for Renovation and Building Costs
The study's firm-size decomposition is where the headline finding becomes personally relevant to anyone hiring a contractor. Residential construction in Canada is dominated by small firms, and those small firms account for nearly all of the productivity decline.
The breakdown is measurable and lopsided:
Firm Size
Share of the 37.3% Productivity Decline
2023 Employment Share
Fewer than 5 employees
–22.4 percentage points
~30%
5 to 19 employees
–16.1 percentage points
~36%
20 to 49 employees
Modest negative contribution
~15%
50+ employees
Positive contribution
~19%
Firms with fewer than five employees — sole operators and micro-crews — contributed more than 22 percentage points of the total 37.3% drop. Firms with five to 19 employees added another 16 points. Together, small firms with fewer than 20 employees account for the overwhelming majority of lost productivity. Only firms with more than 50 employees made a positive contribution over the study period.
That pattern has a direct consequence for homeowners. About 60% of construction firms in Canada are microbusinesses with fewer than five employees, according to a federal government briefing note on the housing workforce. These are the contractors most Canadians actually hire for renovations, additions, and smaller builds.
Small firms are also the ones most exposed when material costs shift due to tariff changes — they lack the purchasing power to absorb price swings the way larger operations can.
Consolidation Is Not the Fix
A natural assumption is that larger firms must be dramatically more efficient. The study challenges this. Between 2001 and 2023, the employment share of small firms (under 20 employees) fell from nearly 80% to about 66% of sector jobs — a meaningful shift toward larger operators. But that consolidation boosted overall productivity by less than five percent.
The reason: the productivity advantage of larger firms over the smallest is only about 10%. That gap is real but modest. A homeowner hiring a 50-person firm is not automatically getting a project that runs twice as fast or costs half as much as one from a five-person crew. The inefficiencies are structural, not simply a function of headcount.
Tip
When comparing contractor quotes, the lowest bid is not necessarily the best value. CMHC recommends obtaining at least three written quotes before signing a contract. In a market where productivity varies widely between firms, the spread between quotes often reflects real differences in how efficiently a contractor runs a project — not just how aggressively they price it.
For homeowners planning a renovation or build in 2026, the practical takeaway is context, not panic. Material costs remain a factor — particularly with ongoing tariff pressures on lumber, appliances, and hardware. But the productivity story explains the other half of the equation: why the labour portion of a quote often feels disproportionately high, and why project timelines stretch beyond initial estimates. The inefficiency is systemic. It is not unique to the crew in your driveway.
Understanding that context does not lower your quote. But it does change how you evaluate one. A contractor who uses project management software, invests in prefabrication where applicable, and runs a tight site schedule is not just organized — they are working against a two-decade structural headwind that most of the industry has not addressed. That distinction is worth asking about.
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About the Author
Ryan May
Senior Contributor / Founder
Ryan is the founder of Homeowner.ca and a proud Canadian homeowner based in Guelph, Ontario. Over his 25-year career in digital publishing, he has focused on transforming complex information into clear, practical guidance that helps people make confident, well-informed decisions.