Google Ads Quality Score for contractors: what should you actually fix?

Quality Score can help a contractor find weak connections between a keyword, ad and landing page. It cannot tell you whether the campaign generates profitable work. Google explicitly describes the visible 1–10 score as a diagnostic tool—not a key performance indicator or a direct input in the ad auction. Fix the underlying customer experience where the diagnosis is useful, then measure qualified opportunities, bookings and won jobs.

Quality Score is attractive because it compresses a complicated auction into one tidy number. That also makes it easy to misuse. An agency can present an average score as evidence of good management while the phone produces wrong-service calls. An owner can demand 10/10 keywords even when the account already generates profitable booked work.

What Quality Score measures

Google calculates Quality Score at keyword level on a scale from 1 to 10. It compares the relevance and usefulness of the ad and landing page with other advertisers for that keyword. The score combines three components:

Each component receives “Above average,” “Average” or “Below average.” Google bases that comparison on advertisers whose ads showed for the exact same search over the previous 90 days. That is more actionable than arguing whether a 6 is emotionally “good.”

Quality Score is not Ad Rank

Google says the displayed Quality Score is not an input in the ad auction. Ad Rank is calculated for each auction and determines whether an ad is eligible to show and, if eligible, where it appears relative to other ads.

Ad Rank considers the bid, auction-time ad and landing-page quality, minimum thresholds, competition, search context and the expected impact of assets and formats. Context can include location, device, time and wording. The auction-time assessment is therefore more specific than a historical keyword score.

• A keyword with a respectable score can still lose because bid, context, thresholds or competition differ.
• A lower visible score does not prove every auction for that keyword delivered the same poor experience.

Quality Score is the warning light. Ad Rank is the auction decision. Neither replaces revenue and lead-quality reporting.

Does Quality Score affect CPC?

The careful answer is that ad quality matters, while the visible score itself is diagnostic. Google says higher-quality ads can often achieve lower CPCs, improve eligibility and qualify for assets. Ad Rank thresholds and competition still affect actual CPC, so no responsible agency can promise that moving a keyword from 5 to 7 will reduce cost by a fixed percentage.

Be wary of savings calculators that convert each score point into a guaranteed discount. Improve the experience because relevance and usefulness are commercially sensible, then observe actual auction and booked-job results.

How to fix “Below average” expected CTR

Start with intent, not clickbait. A homeowner searching “emergency plumber near me” needs evidence of availability, coverage and a clear way to call. A property owner searching “commercial roof replacement contractor” needs capability and fit. One generic “best service at affordable prices” ad is unlikely to serve both well.

• Separate materially different services and urgency levels.
• Make the primary service clear in headlines and descriptions.
• State genuine differentiators such as hours, coverage, accreditation, financing or estimate process.
• Use helpful call, location and service-specific sitelink assets.
• Match claims to what operations can deliver.

A higher CTR is not automatically better. “Free” may attract clicks from people who never become viable customers. Improve response without sacrificing qualification.

How to fix “Below average” ad relevance

Weak ad relevance often means the campaign has mixed too many services or intents. An HVAC ad group containing AC repair, furnace installation, duct cleaning, careers and parts gives the ad little chance to answer each search precisely.

Map each important search theme to a relevant offer and destination. The ad does not need to repeat the keyword unnaturally. It needs to make the user confident that the company solves the specific problem. Review the broad-match readiness guide if wider matching pulls one ad into loosely connected searches.

Use the search-terms report rather than diagnosing from keywords alone. A relevant keyword can still match a poor query, while an unfamiliar query may represent valuable customer language.

How to fix “Below average” landing-page experience

The destination should continue the conversation started by the search and ad. If an advert promises emergency boiler repair, a generic homepage leading with company history creates work for a stressed customer. The page should identify the service, location, next step, availability and proof without forcing a hunt.

• Use a service-specific headline matching the visitor’s need.
• Place the phone or enquiry action where it is immediately usable on mobile.
• Explain service boundaries, response process and exclusions honestly.
• Add real trust evidence where valid.
• Keep the page fast, readable and easy to navigate.
• Test the full call, form and thank-you flow.

Do not create dozens of near-identical pages solely to echo every keyword. Our homepage-versus-landing-page guide explains when a dedicated destination adds value.

Why changing match type does not “fix” the score

Google says Quality Score uses historical impressions for exact searches of the keyword. Changing a keyword from broad to phrase or exact does not directly change how the score is calculated. A broad keyword can share a score with a corresponding exact keyword when qualifying history comes from the same ad group.

A dash in the column usually means there are not enough matching searches to calculate a score. It is not automatically a penalty. Low-volume local keywords may never produce a stable diagnostic.

A practical contractor audit

1. Add the component columns. Review Quality Score, expected CTR, ad relevance and landing-page experience.
2. Filter for business value. Start with keywords spending meaningful budget or producing important enquiries.
3. Inspect actual terms. Confirm what people searched and whether it belongs.
4. Read the component weakness. Do not prescribe a new page for an expected-CTR issue without evidence.
5. Check the journey. Compare ad promise, mobile page, phone routing, form behavior and response coverage.
6. Change one coherent layer. Improve the ad, grouping or page rather than everything simultaneously.
7. Measure business outcomes. Watch qualification, bookings, won work and acquisition cost.

Use a controlled Google Ads experiment when the change is consequential and traffic supports comparison. A prettier score without better customer or business outcomes is not a win.

What should owners ask their agency?

• Which high-spend keywords have a below-average component?
• What customer-experience problem does each component suggest?
• Which proposed fix is supported by search-term or page evidence?
• Will the change affect qualification, not just CTR?
• Are bookings and won jobs reported alongside Quality Score?
• Is the agency confusing Quality Score with Optimization Score, Ad Strength or Ad Rank?

Google states that Ad Strength does not calculate Ad Rank, Quality Score or auction wins. Optimization Score estimates account setup and recommendations. Neither should be blended into a made-up “account health” KPI.

US, Canada and UK considerations

The mechanics are consistent, but relevance is local. US ads may need state or metro coverage, licensing and storm-service distinctions. Canadian pages may need province, travel distance, bilingual content or furnace and heat-pump terminology. UK campaigns often require postcode coverage and terms such as boiler repair, heating engineer, drainage or call-out.

A page can be technically polished and still feel irrelevant if it uses the wrong market’s vocabulary, currency, credentials or service process.

Frequently asked questions