Construction Businesses for Sale in Ontario | Buy & Invest Today

Discover your next big opportunity with DealStream’s comprehensive marketplace of construction businesses for sale in Ontario. Whether you’re looking to buy an established general contractor in Toronto, a specialized trades firm in Ottawa or a turnkey heavy-civil operation elsewhere in the province, our up-to-date listings feature detailed financials, growth projections and seller insights. Browse now to secure a profitable Ontario construction company and build your future success.

All Matching Deals

HVAC Service & Rental Co.  / Reputable w Strong MRR
Toronto, ON

We represent a well-established and reputable residential HVAC services and water heater rental provider for the Southern Ontario golden horseshoe market (the “Company”) that is seeking acquisition. Founded by the principals in 1992, the Company serves a growing base of residential consumers with HVAC...

On Request
Cash Flow: $72,298 ($100,000 CAD)
Details
Toronto, ON

Full service construction manager servicing Muskoka and surrounding regions. ~40 Full time employees Revenue 2020: $17M Revenue 2021: $27M Revenue 2022: $32M Est Revenue $40MM (2023) Est EBITDA $1.7MM (2023) Company owns more than $700K of tools and equipment ($530K of equity) Company owns...

On Request
Details
Windows and Railings Manufacturer in GTA: Retire
Ontario

Booming Manufacturing business in the Heart of Toronto Industry Focus: Specializes in the design, manufacturing, and installation of aluminum railings and windows for high-rise buildings. Established: Business was founded in 2003, with a window division launched in 2021 to complement the railing...

$7,229,830
($10,000,000 CAD)
Cash Flow: $1,952,054 ($2,700,000 CAD)
Details
Retirement – HVAC & Mechanical Business for Sale
York, ON

• Well-managed and profitable HVAC & Mechanical services business with a strong operating history spanning over 100 years. • Primarily serves the residential market, with diversified revenue streams from new installations, service contracts, parts sales, and repairs. • Recognized as a trusted, go-to...

$632,610
($875,000 CAD)
Cash Flow: $278,348 ($385,000 CAD)
Details
Restoration and Renovation Contractor
Ontario

From simple residential renovation projects to large scale commercial Construction and Energy projects, this contractor is a reliable and trusted resource for all building needs, providing a vast range of maintenance and renovation services. As an emergency restoration company, it consistently operates...

$867,579
($1,200,000 CAD)
Cash Flow: $449,406 ($621,600 CAD)
Details
Top-Performing Painting Contractor For Sale
Ontario

Business Description: This well-established painting business operates across Southern Ontario and has a strong track record of consistent revenue and profitability. The company services a diversified base of residential and commercial clients with repeat business. Operations are well-structured and...

$289,193
($400,000 CAD)
Cash Flow: $123,630 ($171,000 CAD)
Details
Kitchen & Bath Business – ON
Ontario

Overview • Established in 2011, this premier full-service interior renovation company specializes in high-quality kitchen, bathroom, and cabinet refacing projects. With expert craftsmanship, personalized design, and outstanding customer service at its core, the business operates through a turnkey model...

$632,610
($875,000 CAD)
Cash Flow: $284,132 ($393,000 CAD)
Details
Road Cleaning Services Business in South Ontario
Ontario

• Business Overview Established commercial services business operating primarily in the construction and municipal sector. Provides essential maintenance and cleanup services including: Sweeping (30% of revenue), Flushing (20% of revenue), Vac Truck Services (50% of revenue), which includes flushing,...

$1,012,176
($1,400,000 CAD)
Cash Flow: $315,220 ($436,000 CAD)
Details
Engineering& Environmental Business in E. Ontario
Ontario

• Business Overview * Established in the mid-1990s, the business operates as a dual-division professional services firm combining engineering consulting, architectural technology, and environmental consulting under one platform. * The engineering division delivers integrated mechanical and electrical...

$1,012,176
($1,400,000 CAD)
Cash Flow: $231,354 ($320,000 CAD)
Details
Specialty Trade Contracting Business in Ontario
Ontario

Business Overview • Established Legacy: With over 50 years in operation, this business is a leading and well-established operator in Ontario’s trade contracting industry. • Comprehensive Services: The business operates as a leading specialty contractor, providing high-performance solutions for infrastructure...

On Request
Cash Flow: $1,952,054 ($2,700,000 CAD)
Details
Motivated Seller:Established Roofing Business GTA
Ontario

Business Overview • Established Legacy: With over 30 years in operation, this business has built a solid reputation and a trusted name in the roofing industry • Comprehensive Services: Specializing in new construction and re-roofing, the business caters to a loyal residential client base Deal Highlights •...

$867,579
($1,200,000 CAD)
Cash Flow: $397,640 ($550,000 CAD)
Details
Motivated Seller-Electrical Business in Hamilton
Hamilton, ON

• Well Established & Reputable Electrical Contracting business in Hamilton & Niagara region, in operation for approximately 30 years • The business enjoys exceptionally high customer retention, reflecting its focus on quality and client service. • The Business has a multi-year track record of revenues,...

$433,717
($599,900 CAD)
Cash Flow: $209,665 ($290,000 CAD)
Details
Electronics & Automation Equipment Manufacturer
Ontario

Overview • The company is a long-standing manufacturer of access system and revenue control solutions with a robust dealer network across North America. Its diverse product range, certified quality standards, and in-house fabrication capabilities ensure both reliability and scalability. Supported by...

$650,684
($900,000 CAD)
Cash Flow: $152,549 ($211,000 CAD)
Details
Commercial Electrical Contractor in GTA
Ontario

*Company: Based in Greater Toronto Area (GTA) – well established with 35 years in operation *Industry and Revenues: Mainly from well-known industrial and commercial general contractors or major clients with an approximate split of 50/50% between projects and services. Around 40% of the revenues are...

$939,877
($1,300,000 CAD)
Cash Flow: $456,925 ($632,000 CAD)
Details
Remote– Established Kitchen Renovation Business
Ontario

Overview Established for over 15+ years, this Top-Rated & Award-Winning Home-Based Business is a specialized provider of custom modular cabinetry solutions and the profitable ‘cabinet refacing’ service for kitchens, vanities, and other residential spaces. Its streamlined model enables efficient project...

$642,731
($889,000 CAD)
Cash Flow: $352,092 ($487,000 CAD)
Details
Profitable Bathroom Renovation Franchise
Ontario

This is a rare chance to acquire a successful and well-known home renovation franchise business specializing in bathroom solutions. The company provides high-quality, custom remodelling services that meet the growing demand for modern, accessible, and functional bathroom spaces. With a streamlined...

$867,579
($1,200,000 CAD)
Cash Flow: $256,445 ($354,705 CAD)
Details
Profitable Construction Cladding & Exterior System
Toronto, ON

Business Description This established Greater Toronto Area–based company operates within the construction industry, specializing in the design, fabrication, and installation of exterior cladding systems for residential and commercial buildings. The business functions as a reliable specialty trade partner...

$397,640
($550,000 CAD)
Cash Flow: $141,034 ($195,073 CAD)
Details
Demolition Business in GTA
Ontario

Business Overview *Specializes in commercial, industrial, and selective demolition, including hazardous materials abatement. *Services include demolition, hazardous materials abatement, and site preparation, all delivered using top-tier equipment, including remote-controlled demolition robots. *A...

$488,013
($675,000 CAD)
Cash Flow: $206,050 ($285,000 CAD)
Details
Retirement-Profitable Industrial Electric Business
Ontario

Established Reputation for Quality and Reliability in Industrial Electrical Contracting: Founded over 50 years ago, this industrial electrical contractor is based in the western GTA and services clients from the west through to the central GTA. The Company has built a strong reputation for quality workmanship,...

$1,301,369
($1,800,000 CAD)
Cash Flow: $527,054 ($729,000 CAD)
Details
GTA Home Renovation Contractor: Owner Retiring
Ontario

Business Overview *Long-established residential renovation contractor: established in the 1940s, the business specializes in interior and exterior renovations. *Service model: high-touch project management with licensed subcontractors; strong on-site presence from start to finish. *Reputation-driven:...

$568,987
($787,000 CAD)
Cash Flow: $354,261 ($490,000 CAD)
Details
Turnkey Full-Service Building Analytics Company
Toronto, ON

Founder-led team remains in place to support execution and accelerate growth Turnkey energy intelligence platform supported by proprietary EMIS software and integrated sensors Backed by national clients (Largest Canadian Telecom provider and Largest REIT) and a pipeline exceeding $11M+ Government-funded...

$1,084,474
($1,500,000 CAD)
Details
Commercial Electrical Contracting Business
Ontario

This is an exceptional opportunity to acquire a profitable electrical contracting company with 40+ years of proven success and an outstanding reputation built on quality workmanship and customer satisfaction. The business provides comprehensive electrical services across commercial and industrial sectors,...

$1,084,474
($1,500,000 CAD)
Cash Flow: $544,812 ($753,562 CAD)
Details
Electrical Contractor in Waterloo/Kitchener Area
Waterloo, ON

• Company: Very profitable, well-established Electrical contractor with 17y+ history • Consistent Performance: For the last 3 years (Y2022-2024) the average revenue was $1.88M/y and the average of seller’s discretionary earnings (SDE) was approximately $432k/y. • Loyal Client base: Strong/long...

$1,048,325
($1,450,000 CAD)
Cash Flow: $312,328 ($432,000 CAD)
Details
Turnkey Garage Flooring Franchise - Immediate Cash
Vaughan, ON

Why start from scratch when you can hit the ground running and generate profit from day one? This is a rare opportunity to acquire a home service business in premium garage flooring transformation in a high-demand, exclusive territory—with the infrastructure, systems, and customer base already in...

$360,768
($499,000 CAD)
Cash Flow: $92,541 ($128,000 CAD)
Details
Profitable Flat-Roofing Contractor with 30+ Years
Peterborough County, ON

An established and consistently profitable commercial and industrial roofing company for sale with 30+ years in operation, this business is a true turn-key opportunity for a qualified acquirer. The company has built a trusted brand around flat-roof expertise, delivering reliable performance for property...

$4,482,494
($6,200,000 CAD)
Cash Flow: $713,047 ($986,258 CAD)
Details

Tips for Buying Construction Businesses In Ontario

Understand Regulatory and Licensing Requirements

One of the most critical factors in buying a construction business in Ontario is ensuring full compliance with industry regulations and licensing. Before making any purchase, thoroughly review the business’s current licenses, permits, and legal standing with bodies such as the Ministry of Labour and the Workplace Safety and Insurance Board (WSIB). Failure to maintain proper certifications can result in hefty fines, work stoppages, or even losing the right to operate. This due diligence will not only protect you from inheriting past liabilities but will also give insight into how professionally the current owners have operated the business.

Assess the Pipeline and Reputation

Evaluating the company’s current project pipeline and market reputation is key to understanding future revenue streams and risk exposure. Examine active contracts, scope of work, and diversity of clients—ideally, the business should not be overly reliant on just one or two major clients or sectors. Beyond financial documents, speak directly with customers, suppliers, and subcontractors to gauge satisfaction and confirm the strength of these relationships. A business with a solid reputation and repeat clientele in Ontario’s competitive construction sector is a promising acquisition.

Scrutinize Equipment, Staff, and Safety Protocols

Construction businesses rely heavily on reliable equipment and skilled personnel. When assessing a target company, inspect the quality, age, and maintenance records of all major assets, such as vehicles and heavy machinery. Interview key staff to understand their expertise and willingness to stay post-transaction—this often determines operational continuity. Additionally, review the company’s health and safety policies to confirm compliance with Ontario’s stringent construction safety regulations, as a solid track record here greatly reduces your risk of future incidents or claims.