SEO for plumbers: what 36 local websites get wrong
We ran the same checks as our free scan on 36 independent plumbing and heating websites across the South West in September 2026. Here is what came up most, what it costs a trade business, and what to fix first.
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The problems that came up most often
Based on 36 plumbing businesses. Each figure shows how many sites it was measured on.
71%of sites took more than four seconds to show their main content on a phone (25 of 35).
Someone with water coming through the ceiling is not going to wait for your page to load. They are on their phone, and the next plumber is one tap away.
First fix: Start with the large photo at the top of the homepage: resize and compress it, and make sure nothing else has to load before it.
53%of sites did not tell Google they were a plumber, or even a local business, in their structured data (19 of 36).
When someone searches for a plumber near them, Google has to guess what you do and where you work from the page text. Structured data states it outright.
First fix: Add Plumber schema to your homepage with your service area, phone number and opening hours.
Check your structured data44%of sites were missing a page title or description on more than 30% of the pages we sampled (16 of 36).
Google then writes your search listing for you, often from whatever text it finds first, such as a cookie notice or a list of towns.
First fix: Give each service page its own title and description: the job, the area, and a reason to call you rather than the next listing.
50%of sites had no DMARC record at all, and only 1 of 36 told inboxes to reject fake email sent in their name.
Quotes and invoices sent from your domain are easier to fake and easier for inbox providers to distrust.
First fix: Add a DMARC record to your domain, start it in monitoring mode, then move it to quarantine once your own email passes.
Check your DMARC record
What to fix first
If you run a plumbing business, this is the order we would take these in. Then run the free scan to see which apply to your site.
Make the first screen fast on a phone
Emergency jobs are won on a phone. Compress the hero image and put your phone number where it loads first.
Write a title and description for every service page
Boiler repair, bathroom fitting, emergency call-outs: each needs its own page title naming the job and the area.
Tell Google what you do and where
Add Plumber structured data with your service area, phone and hours, matching your Google Business Profile.
About this research
- 36 independent plumbing businesses across twelve South West towns, audited on 25 September 2026 with the same checks our free scan runs. No site is named on this page.
- Homepage plus up to six further pages per site. Mobile speed is Google PageSpeed Insights lab data, measured twice and averaged.
- A site counts as failing a check only when it clearly misses it. Borderline results, such as a DMARC record in monitoring mode, are counted separately and not included in the fail figures.
- Some checks could not be measured on every site, for example when a page would not load. Each figure says how many sites it is based on.
Common questions
Further reading
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Read moreLocalBusiness Schema: The Structured Data That Actually Matters for Local Search
LocalBusiness schema is the one piece of structured data almost every local business should add. Here's the full property list, how multi-location sites should handle it, and the placeholder mistake that quietly undoes it.
Read moreWhat Is a Title Tag? The One HTML Element Most Small Sites Get Wrong
The title tag is one of the smallest pieces of code on your page and one of the biggest factors in whether anyone clicks through from Google. Here's what it is and how to write one properly.
Read moreStart with one page. Then let AuditCrow watch the rest.
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