Construction companies · Ontario

Construction companies in St. Catharines, ON

492 contractors in St. Catharines with phone numbers, 63 with email addresses. Search the list, unlock the ones you want and start calling today.

Get the St. Catharines list freeSee a sample
492
businesses
100%
have a phone number
13%
have an email address (63)
—
average Google rating
Sample

A sample of construction companies in St. Catharines

Twelve of the 492 contractors on the list. Phone numbers and emails unlock in the app — 1 credit per business, both together.

BusinessCategoryRatingWebsitePhoneEmail
Miller RestorationConstruction Supplies Store; Insurance Agency—Yes(905) •••-••••Available
End of The Roll - St. CatharinesConstruction Supplies Store; Home Service; Carpet Store—Yes(905) •••-••••Available
ADraaistra ContractingHome Improvement Service—Yes(289) •••-••••Available
Gillet Painting & DecoratingDeck and Patio Contractor; General Contractor; Painter—Yes(289) •••-••••Available
U Cart ConcreteConstruction Supplies Store—Yes(905) •••-••••Available
Garden City FenceConstruction Supplies Store—Yes(905) •••-••••Available
MW InteriorsConstruction Supplies Store—Yes(905) •••-••••Available
Zeke & CoHome Improvement Service—Yes(905) •••-••••Available
Akim Pest ControlConstruction Supplies Store—Yes(905) •••-••••Available
G B Environmental Services (Niagara) LtdConstruction Supplies Store—Yes(905) •••-••••Available
Lex Parker Design Consultants LtdConstruction Supplies Store—Yes(905) •••-••••Available
Metal Roofing by HindreaConstruction Supplies Store—Yes(905) •••-••••Available

Showing 12 of 492. Data refreshed October 2026.

The market

What St. Catharines's contractors look like

0% of rated contractors here hold 4.5★ or better — there is room for businesses that push for reviews.
0 carry a perfect 5.0★ rating; 492 have no rating yet — prime prospects for review and reputation services.
197 (40%) have no website listed — a ready-made list for web design and SEO offers.
13% link a Facebook or Instagram page from their listing.

Most common listings

  • Construction Supplies Store134
  • General Contractor119
  • Home Improvement Service36
  • General Contractor; Heating, Ventilating and Air Conditioning Contractor20
  • Carpet and Flooring Contractor16
  • Construction14

Area codes

  • (905)414
  • (289)62
  • (416)6
  • (647)5
  • (365)2
  • (800)1
Playbook

How to sell to contractors in St. Catharines

This category covers general contractors, renovation firms, builders, excavators and concrete and framing companies. Projects are larger and longer, and the person you need is usually the owner or the estimator.

Who sells to contractors

  • Construction software (estimating, scheduling, takeoffs, project management)
  • Equipment rental and heavy-equipment dealers
  • Building-materials suppliers
  • Bonding, builder's risk and liability insurance
  • Accounting and job-costing firms
  • Subcontractor and trade recruiting

What keeps owners up at night

  • Cash flow between progress payments
  • Bidding accurately and winning the right jobs
  • Coordinating subs and keeping schedules
  • Labour shortages
When to reach themEarly morning, before site visits, or late afternoon. Winter is planning and bidding season in colder markets, which is a good time to sell software and services.
The angle that worksTalk about margin and schedule risk. "How much did your last job overrun?" opens more doors than "we save you time."
Reaching out in CanadaCold email to Canadian businesses falls under CASL, and phone outreach falls under the CRTC's telemarketing rules. A business address that's published publicly can support implied consent for messages relevant to that business, but every email still needs your identity and a working unsubscribe. Read our plain-English CASL guide and cold-calling rules before your first campaign.
FAQ

Questions about St. Catharines contractors leads

How many construction companies in St. Catharines, ON are in the database?
492 construction companies in St. Catharines, ON, as of October 2026. 492 of them have a phone number and 63 have an email address.
How much does it cost to get these leads?
Every account starts with 25 free credits. Unlocking a contact (phone and email together) costs 1 credit. The Starter plan is $39/month for 2,500 credits — about 1.6¢ a contact — so the whole St. Catharines list of 492 costs less than one month of Starter. See pricing.
Can I export the list to a dialer or CRM?
Yes. Unlocked contacts export to CSV, Excel or JSON with phone, email, website, address, category and rating, ready for any dialer or CRM.
Where does the data come from?
From public business listings — the same information contractors publish so customers can find them — cleaned, de-duplicated by phone number and refreshed regularly. Businesses can ask to be removed at any time.

Construction companies in other cities

Toronto, ONMississauga, ONOttawa, ONNorth York, ONBrampton, ONLondon, ONScarborough, ONMarkham, ONAll construction companies →

Other businesses in St. Catharines

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Start calling St. Catharines contractors today

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