Google Ads Keywords for Contractors

Overview

Most GTA contractors who run Google Ads lose money not because ads don’t work, but because their keyword strategy is wrong. Broad, generic keywords like “contractor” or “plumber” attract searchers from outside your service area, low-intent browsers, and competitors — all at your expense. Matching your keywords tightly to what local homeowners actually type when they’re ready to hire is what separates a profitable campaign from a budget drain.

What Causes This?

• defaulting to broad match keywords without understanding how Google expands them
• targeting city-level keywords like “Toronto plumber” without borough or neighbourhood modifiers
• no negative keyword list, so ads show for irrelevant queries like “plumber salary” or “DIY HVAC repair”
• mixing high-funnel research terms with bottom-funnel buying intent terms in the same ad group
• using the same keyword list for every trade rather than tailoring to job type and urgency
• ignoring search term reports so wasted spend goes undetected for weeks

What Does It Look Like?

• high click volume but very few quote requests or phone calls coming through
• cost-per-lead well above $80–$120, which is the rough benchmark for GTA trade services
• ad budget depleted by noon without a single conversion
• Google showing your ad for queries in Barrie or Oshawa when you only work in the 416/905
• search term report showing irrelevant queries eating 30–50% of total spend

How to Diagnose It

• pull the search terms report in Google Ads (not the keywords tab) and sort by cost to see what queries actually triggered your ads
• check your geographic impression share breakdown to confirm spend is concentrated in your actual service area
• review match types on all active keywords — flag any broad match keywords running without a strong negative list
• check conversion tracking to confirm calls and form fills are being recorded accurately before drawing conclusions
• calculate your actual cost-per-lead by dividing total ad spend by verified conversions (calls + form submissions) over the last 30 days

How to Fix It

• use phrase match and exact match as your defaults; avoid broad match unless you have a large budget and an established negative keyword list
• build a negative keyword list from day one — include terms like “jobs,” “hiring,” “salary,” “DIY,” “free,” “school,” and competitor brand names
• structure ad groups around specific services and urgency signals: “emergency furnace repair Mississauga,” “licensed electrician Scarborough,” “flat roof replacement North York”
• add location modifiers for GTA municipalities and neighbourhoods — Etobicoke, Vaughan, Brampton, Markham — rather than relying on geo-targeting alone
• use call-only ads or call extensions so mobile users can reach you directly without needing your website to convert
• review the search terms report weekly for the first 60 days and continuously add irrelevant queries to your negative list

Related Technical Issues

• Contractor Landing Page for Google Ads — how to build a landing page that converts paid traffic into quote requests
• Google Ads vs SEO for Contractors — when to use paid search versus organic search for GTA lead generation
• Cost Per Lead on a Contractor Website — how to calculate and reduce what you pay per lead across all channels

Get Help

If your Google Ads spend isn’t producing consistent leads, the problem is often a combination of keyword targeting and landing page issues. A free website audit shows GTA contractors exactly what’s wrong and what it will take to fix it.