There's a meaningful difference between a contractor offering three or four related services and a true home services aggregator, a business (or franchise group, or multi-brand operator) running PPC across a genuinely wide portfolio: plumbing, electrical, HVAC, and handyman services under one umbrella, sometimes across multiple locations. At that scale, the challenges of multi-service PPC don't just multiply, they change in kind. Cannibalization between your own campaigns becomes a real risk, account management complexity grows non-linearly, and the account structure that worked fine for three services starts to buckle at eight or ten.
This guide is aimed specifically at that scale. Multi-vertical, often multi-location operators for whom the single-service playbooks covered in our plumbing, HVAC, and electrician guides are necessary background but not sufficient on their own. Everything in those guides still applies within each vertical; what changes at aggregator scale is everything that happens across verticals and locations simultaneously.
Operators who want the plumbing line handled directly can see the scope on the Google Ads for plumbers page.
The Aggregator Problem: Cannibalization at Scale
When one business runs Search campaigns for plumbing, electrical, and HVAC in the same market, it's entirely possible for those campaigns to bid against each other. Quite literally, if broad match or overlapping keyword sets cause more than one of your own campaigns to enter the same auction. Google will pick one ad to show (Ad Rank determines this), but you've effectively created internal competition that drives up your own costs without any benefit, since you were always going to win that impression regardless of which of your campaigns served it.
This is distinct from the simpler multi-service contractor problem because at aggregator scale, keyword overlap between verticals is common even when the services themselves are unrelated: "home service company near me," "handyman vs electrician for [task]," and generic "home repair" searches can trigger multiple campaigns within the same account. Left unmanaged, this quietly inflates cost-per-click across the entire account.
Account Architecture for Multi-Service Operations
The fix starts with genuinely siloed campaign architecture, not just separate campaigns, but a keyword strategy that actively avoids overlap between verticals. Each vertical (plumbing, electrical, HVAC, etc.) should own its own tightly scoped keyword set with vertical-specific negatives excluding the other verticals by name and by common query pattern. If your account also spans multiple locations, add a second dimension: campaigns structured by location within each vertical, rather than one national or metro-wide campaign per service, so budget and bid strategy can reflect real differences in local competition and pricing.
Portfolio Bidding Strategies Across Verticals
Individual campaign-level Smart Bidding works fine at smaller scale, but multi-vertical, multi-location accounts benefit from portfolio bid strategies that let Google optimize a shared target (like target CPA or target ROAS) across a group of campaigns rather than each campaign fighting for conversions in isolation. This is particularly useful when verticals share a similar conversion value and sales cycle: grouping, say, all your plumbing campaigns across five locations into one portfolio strategy gives the algorithm more conversion data to learn from collectively than five smaller, siloed campaigns each slowly gathering their own data independently.
Where verticals differ meaningfully in ticket size and margin (HVAC installs versus small handyman jobs, for instance), keep those separate rather than forcing them into the same portfolio: a shared target optimized for average value across dissimilar services tends to underserve your highest-margin vertical in favor of whichever generates the most raw conversion volume.
Negative Keyword Hygiene at Scale
At single-service scale, a negative keyword list is a minor maintenance task. At aggregator scale, it's infrastructure. Build a master shared negative keyword list applied across every campaign (job-seeker terms, DIY/how-to terms, wholesale/supplier terms, competitor brand names you don't want to bid against inadvertently), and layer vertical-specific negative lists on top: your plumbing campaigns should exclude electrical and HVAC terms explicitly, and vice versa, even though it feels redundant when the campaigns are already keyword-scoped to their own vertical. Review the search terms report across the whole account monthly at minimum; at this scale, a single missed negative can quietly burn thousands of dollars across dozens of ad groups before anyone notices.
Local Services Ads Across Multiple Categories
Google Local Services Ads supports multi-category enrollment, meaning an aggregator business can appear in the LSA unit for plumbing, electrical, and HVAC searches independently, each requiring its own license/insurance verification per category and per location where applicable. Managing this at scale means tracking verification status, weekly lead budgets, and review generation separately per category: treating it as one unified "home services" LSA profile undersells the category-specific trust signals (license type, category-specific reviews) that actually drive conversion within each vertical's search results.
Landing Page Architecture for Multiple Verticals
Just as with a single-vertical contractor, every vertical needs its own landing page: but aggregators have an additional decision to make about branding. Should each vertical have visually distinct pages, or should they share a consistent template with swapped content? In practice, a shared, well-designed template with vertical-specific copy, imagery, and proof points (reviews filtered by service type, service-specific FAQs) tends to work better than either fully generic pages or wildly inconsistent one-off designs per vertical: it preserves brand consistency while still giving each vertical's landing page the specificity that drives conversion.
A Budget Allocation Model That Actually Works
Rather than allocating budget evenly across verticals or locations, build a simple scoring model incorporating margin per job, current close rate, and local market competitiveness (reflected in CPC), and revisit it monthly. A vertical with high margin, a strong close rate, but rising local CPCs might still deserve more budget than a lower-margin vertical with cheaper clicks, because the actual profit per dollar spent is what matters: not cost-per-lead in isolation.
| Factor | Why It Matters |
|---|---|
| Margin per job | Determines how much profit each conversion actually generates, not just its cost |
| Historical close rate | A cheap lead that rarely closes can be more expensive than an expensive lead that closes reliably |
| Local competitiveness | CPC trends by market signal where budget will be efficient versus where it will be absorbed by rising auction pressure |
| Crew/technician capacity | Budget should flex down for verticals or locations already at capacity, regardless of how well the campaign performs |
Reporting By Vertical, Not Just By Account
Account-level ROAS is close to meaningless at aggregator scale, it averages together verticals with completely different economics and hides exactly where budget should move. Build reporting (dashboards, not just raw Google Ads UI views) segmented by vertical and by location, and review it on a cadence that matches how quickly local competitive dynamics shift in your markets, typically monthly at minimum. This kind of structured reporting is also what separates a business that can confidently hand PPC oversight to outsourced management from one that's still guessing at what's actually working.
Call Routing and Dispatch: The Operational Bottleneck
At single-service scale, a missed or mishandled call is a lost lead. At aggregator scale, it's a systemic risk, because the same dispatch and call-answering infrastructure typically has to route calls across multiple verticals and possibly multiple locations, often to a shared call center or answering service that may not be equally well-versed in every vertical's terminology and urgency signals. A call center trained primarily on plumbing calls may not ask the right qualifying questions for an HVAC emergency, and that gap shows up as lower close rates on a vertical that, on paper, looks like it's generating perfectly good leads.
Dynamic number insertion segmented by vertical (and ideally by campaign) is essential here, not just for attribution but for routing: calls from an HVAC campaign should route to staff trained on HVAC intake, not a generalist queue. Regularly auditing call recordings by vertical, rather than assuming a shared call-handling process works equally well everywhere, catches a surprising number of preventable losses that no amount of campaign optimization will fix.
Using an MCC Structure to Manage Multiple Brands or Locations
Once an aggregator operates across enough locations or sub-brands, managing everything inside a single Google Ads account becomes unwieldy: campaign lists get long, permissions get messy, and it's easy to lose track of which negative keyword lists or bid strategies apply where. A Google Ads manager account (MCC) structure, with individual sub-accounts per location or brand, keeps billing, access permissions, and reporting cleanly separated while still allowing shared negative keyword lists and portfolio bid strategies to be applied centrally where it makes sense.
This structure also makes it far easier to onboard a new location or franchise territory without disturbing existing, well-optimized accounts: a genuinely important consideration for any aggregator business planning to keep expanding, since a messy single-account structure tends to get exponentially harder to untangle the longer it's left unaddressed.
Mistakes That Are Unique to Multi-Vertical Scale
- Internal campaign cannibalization from overlapping keywords across verticals that were never explicitly separated with cross-vertical negatives.
- One negative keyword list treated as sufficient instead of a layered master-list-plus-vertical-specific approach.
- Forcing dissimilar verticals into one portfolio bid strategy, which underserves higher-margin services.
- Treating LSA as one unified profile instead of managing verification, budget, and reviews per category.
- Account-level reporting only, which hides exactly where budget should be reallocated.
Multi-vertical home services PPC rewards genuine structural discipline over raw spend. The businesses that scale most efficiently across many services and locations are the ones that treat account architecture, negative keyword hygiene, and vertical-level reporting as core infrastructure: not administrative afterthoughts bolted onto campaigns built for a much smaller, simpler operation.
It's worth being honest about the management overhead this implies. A well-run multi-vertical account at real scale is not a part-time responsibility, and few in-house marketing hires have deep experience managing cross-vertical cannibalization, portfolio bidding, and multi-location MCC structures simultaneously: this is exactly the kind of complexity where bringing in specialized PPC consulting expertise, or a dedicated agency team with aggregator-scale experience specifically, tends to pay for itself many times over compared to the cost of an under-structured account quietly bleeding budget across dozens of overlapping campaigns.
Frequently Asked Questions
House cleaning behaves differently from one-off trades because the customer books again. That is covered in Google Ads for house cleaning.
