Construction companies · Ontario

Construction companies in Guelph, ON

462 contractors in Guelph with phone numbers, 75 with email addresses. Search the list, unlock the ones you want and start calling today.

Get the Guelph list freeSee a sample
462
businesses
100%
have a phone number
16%
have an email address (75)
—
average Google rating
Sample

A sample of construction companies in Guelph

Twelve of the 462 contractors on the list. Phone numbers and emails unlock in the app — 1 credit per business, both together.

BusinessCategoryRatingWebsitePhoneEmail
Wm Green RoofingConstruction Supplies Store—Yes(519) •••-••••Available
Newlife CabinetryConstruction Supplies Store—Yes(519) •••-••••Available
O'Brien Fabrications LtdConstruction Supplies Store—Yes(519) •••-••••Available
Sambor RoofingConstruction Supplies Store—Yes(519) •••-••••Available
Jones ElectricConstruction Supplies Store—Yes(519) •••-••••Available
Tania's Drapery HouseConstruction Supplies Store—Yes(519) •••-••••Available
Royal City Custom ConcreteGeneral Contractor—Yes(519) •••-••••Available
New Tradition Stoneworks LtdGeneral Contractor; Landscaper and Gardener—Yes(519) •••-••••Available
Hy-Grade Roofing Systems LtdConstruction Supplies Store—Yes(519) •••-••••Available
Superior Steel RoofingConstruction Supplies Store—Yes(519) •••-••••Available
Hailey Home SvcGeneral Contractor—Yes(519) •••-••••Available
Young Murray Enterprises IncConstruction Supplies Store—Yes(519) •••-••••Available

Showing 12 of 462. Data refreshed October 2026.

The market

What Guelph'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; 462 have no rating yet — prime prospects for review and reputation services.
173 (37%) have no website listed — a ready-made list for web design and SEO offers.
15% link a Facebook or Instagram page from their listing.

Most common listings

  • Construction Supplies Store137
  • General Contractor111
  • Home Improvement Service35
  • Construction22
  • Carpet and Flooring Contractor14
  • General Contractor; Heating, Ventilating and Air Conditioning Contractor11

Area codes

  • (519)404
  • (226)34
  • (905)7
  • (647)6
  • (416)3
  • (289)2
Playbook

How to sell to contractors in Guelph

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 Guelph contractors leads

How many construction companies in Guelph, ON are in the database?
462 construction companies in Guelph, ON, as of October 2026. 462 of them have a phone number and 75 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 Guelph list of 462 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 Guelph

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Start calling Guelph contractors today

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