Let's TalkLet's TalkMould searches mix homeowners with a real problem, people buying sprays and test kits, people asking how to clean a shower and people looking for mould jobs. Google Ads for a mould remediation company has to pay for the first group - with ad copy calm and accurate enough to pass a regulator's reading.
We go through the search terms you paid for, the assessments they produced and what became of them, and show how much went on DIY, product, test-kit and job searches, whether your ad copy makes claims you could not support, and what to change first. You get a recorded walkthrough; there is no call to sit through.
Four failures we see repeatedly in this vertical, and what each one actually costs.
'How to remove mould from shower', 'best mould spray', 'mould test kit' and 'is black mould dangerous' come from people cleaning small areas or researching. 'Mould remediation jobs' comes from people looking for work. Without careful exclusions, these searches can take most of the budget before a homeowner with a real problem has seen your ad.
'Toxic black mould could be making your family sick' gets clicks, but it is the kind of claim regulators and customers punish. Texas, for example, prohibits mould licensees from false, misleading or unverifiable claims in advertising. Ads need to be calm, specific and supportable.
Cheap testing offers bring people who want reassurance rather than remediation. The EPA says sampling is usually unnecessary when mould is visible. Campaigns that lead with testing fill the calendar with visits that rarely become jobs.
An assessment that finds a small surface problem counts the same as a full remediation in most accounts. Without importing completed jobs and their values, bidding cannot learn which searches lead to real work.
Business outcomes rather than dashboard metrics. None of these is a guaranteed number - where we do guarantee something, it is written into the offer above.
The real deliverables, not a list written to make a proposal look thicker.
Not the general agency pitch. The reasons that only apply to this kind of business.
Mould keywords attract people buying sprays and test kits and people cleaning small patches themselves. We build exclusion lists from the search terms you actually pay for and keep them current, so the budget reaches homeowners and property owners with problems that need a professional.
We replace fear-based copy with calm, specific messages about finding moisture, proper remediation and proof of clearance. Claims are checked against what you can support and your state's rules, so the account grows without creating risk.
We import completed remediations with their values, and track assessments that found no significant problem, so bidding learns which searches lead to real work and reporting shows cost per remediation.
Recent searches sorted into jobs, DIY, products, test kits and employment.
Negative lists built and reviewed monthly.
Calm, specific and supportable ads.
Hidden mould, attics, home sales and commercial campaigns.
Size, location, leak history and timing asked first.
Completed remediations fed back for bidding.
The parts of this that come from having run it in this industry before rather than from running it well in general.
Searches about musty smells, mould after a leak or mould behind walls come from people with problems the EPA says may need a professional. Campaigns built for them convert better than generic 'mould removal' ads.
Mould found during a home inspection creates urgent searches from buyers, sellers and agents. A campaign and page for inspection findings, with fast scheduling and documentation, capture that work.
Property managers and landlords deal with mould across units and need reliable, documented work. A separate campaign reaches them and brings repeat business.
The cheapest mould leads are often small surface problems or testing requests. Importing completed remediations teaches bidding which searches lead to real jobs.
None of our case studies is a mould remediation company. The nearest Google Ads engagement is an auto dealership, where tightly targeted search campaigns produced 1.22M clicks at a 0.90% click-through rate, 627% ROAS and $617K in revenue. The transferable lesson is targeting discipline - paying only for searches from people ready to buy, which in mould work means filtering out DIY, spray and test-kit traffic first.
Read the full case studyYes, when DIY, product, test-kit and job searches are excluded, ad copy is calm and accurate, and campaigns focus on problems that need a professional. Measured on completed remediations, search ads can be a dependable source of hidden-mould, home-sale and property-manager work.
How-to and cleaning searches, sprays and cleaning products, home test kits, general health questions if you cannot help with them, and job searches. Review the search terms report monthly, because new variations keep appearing.
Avoid them unless you can fully support them, and never frighten or diagnose. The EPA advises people with health concerns to consult a health professional. Texas prohibits mould licensees from false, misleading or unverifiable claims in advertising. Calm ads about finding moisture and fixing the problem are safer and often convert better.
Usually not as the lead offer. The EPA says that in most cases, if mould is visible, sampling is unnecessary. Testing offers attract people seeking reassurance rather than remediation. Offer assessments that look for moisture and the extent of growth, and explain when sampling genuinely helps.
What an assessment involves, how you find the moisture source, how remediation and clearance work in your state, your licences or training where required, what documentation customers receive, genuine reviews and a short form asking where the mould is, roughly how large and any history of leaks.
Google's current US list includes water damage services but no separate mould category. If you also do water damage restoration, that category may cover that work; mould-specific searches run mainly through search campaigns and the map.
By the areas you serve and by problem type: hidden mould, attics and crawl spaces, bathrooms, inspection findings and commercial properties. Separate campaigns let each be judged on completed remediations rather than on the cheapest clicks.
Import completed remediations as offline conversions, with their values, so bidding learns which searches lead to real work. Counting every assessment equally teaches Google to find people who book assessments, and many of those turn out to be small DIY-sized problems.
Enough to fill your assessment and remediation capacity in the areas you want to grow, judged on cost per completed remediation over a couple of months. Start with hidden-mould and home-sale searches, then expand into what works.
Selectively, and with care. Many people search for black mould because they are frightened by something they have read. Ads and landing pages that answer calmly - what the EPA says, how size and moisture matter, when a professional is needed - convert those searches into genuine assessments without exploiting fear. Avoid copy that implies a diagnosis or a health outcome you cannot support.
Yes, if you serve them. Property managers, landlords and commercial owners deal with mould across units and buildings, need documented work for tenants and insurers, and bring repeat business. A separate campaign and landing page that explain your documentation, scheduling around occupants and clearance process reach them far better than homeowner ads.
Excluding DIY and product searches can improve an account within weeks. Remediation results take a little longer because assessments, quotes and scheduling take time, so judge changes over a month or two.
Written for owners weighing this up, whether or not they work with us.
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No pitch deck, no discovery call you have to sit through. Tell us the situation and we will tell you whether we can help.