Case study · Plumbing, HVAC & electrical SEO
Plumbing SEO case study: Dallas–Fort Worth plumbing, HVAC & electrical, 23K to 57.5K monthly organic visits
A plumbing, HVAC and electrical SEO case study: an 80-year-old Dallas–Fort Worth brand, rebuilt for how the Metroplex searches today — multi-location local SEO, keyword rankings for searches like “emergency plumber”, and the spikes, dips and limits all stated.
Overview
Eighty years of reputation, made findable
The company has served Dallas–Fort Worth homes since 1945. In 2023 its site drew around 23,000 organic visits a month — solid for a local brand, but a fraction of the demand across four service lines and more than forty Metroplex communities.
The challenge
One website, four trades, forty-plus towns
Every service line competes for attention on the same site — and every one of them has to rank in every community the company serves.
The strategy
A multi-service SEO strategy in three horizons
Strengthen what exists, expand across the Metroplex, then compound authority — so growth came from a steadier base rather than one-month spikes.
Strengthen the core
Fix what was holding existing pages back before building anything new.
- Technical and indexation clean-up
- One clear page per service
- Consolidate overlapping pages
Expand across the Metroplex
Take every service line into every community that searches for it.
- Service × city coverage
- Google Business Profile support
- Local trust signals and reviews
Compound authority
Build the reputation signals and answers that keep rankings stable.
- Local links and mentions
- Seasonal and how-to content
- Answers AI assistants can quote
The process
A working rhythm, not a one-off project
How we worked: weekly monitoring, monthly building, quarterly re-planning — the cadence that kept a four-trade, forty-town site moving in one direction.
- Rank and traffic monitoring by service line
- Technical health and indexation checks
- Quick fixes on pages that slip
- New and improved service × city pages
- Seasonal content ahead of demand
- Google Business Profile updates
- Brand vs non-brand demand review
- Competitor and market gap analysis
- Re-prioritise by service line and town
Behind it: audit → demand mapping → build → local expansion → authority → measure — repeated each quarter.
Implementation
What we built, lane by lane
Each service line got the same three layers: pages for the service, coverage for the cities, and content for the questions homeowners ask first.
Example searches shown for each layer — illustrative of the approach across all 40+ communities.
The journey
A higher base, year after year: our plumbing SEO journey
Each bar shows the range organic traffic moved within that year. The dashed lines mark one-month spikes that fell straight back — shown, but not counted as results.
Read from the Semrush all-time traffic chart (Worldwide, desktop); ranges and levels are approximate. The vertical scale stops at 80K, so the spikes are shown by label rather than to scale.
The result
Plumbing SEO results: 2.5× the organic traffic of 2023
The evidence
Plumbing SEO case study evidence: two screenshots
Two Semrush views of the same site: the domain overview behind the growth, and the US keyword rankings that drive it.
Domain overview: 57.5K organic visits a month
- Organic traffic
- 57.5K−21% on period
- Ranking keywords
- 13.1K−2.2%
- Authority Score
- 351.9K referring domains
- Paid traffic
- 0Paid ran in 2023–24
What it tells usA higher base every year since 2023, a mid-2026 high near 78K and 57.5K now. The brief one-month spikes in 2024 and 2025 are not counted as results.
AI search breakdown
Where AI answers mention the brand
Total: 234 mentions · 229 unique cited pages · AI visibility score 22. Pages can be cited on more than one platform.
Plumbing SEO keyword rankings: 74% non-branded
- US traffic
- 52.9Kfrom 13.1K keywords
- Non-branded
- 39.3Kvs 13.6K branded
- Traffic value
- $1.2Mmonthly ad-cost equivalent
- Commercial intent
- 33.3Kvisits, the largest share
What it tells usAbout three-quarters of US visits come from service searches, with page-one visibility for “emergency plumber” (246K monthly searches) and the brand in Google’s local pack. US traffic is down 26.9% on Semrush’s comparison, in line with the easing from the mid-2026 high.
Proof & limits
What this proves — and what it doesn’t yet
✓What it shows
- Estimated organic visits up about 2.5× since 2023
- Around three-quarters of US traffic from non-brand searches (39.3K vs 13.6K branded)
- Page-one visibility for “emergency plumber” (246K monthly searches)
- A higher typical level each year, not just one-off peaks
- Organic growth with no paid search running today
–What it doesn’t show yet
- Calls, bookings or revenue from organic search
- What caused the one-month spikes — we don’t count them as results
- Why traffic eased from its mid-2026 high (−21% on Semrush’s comparison)
- The effect of an 80-year brand, its awards and other marketing
That’s why we measure the base the traffic returns to, not the peaks it touches.
FAQ
Your questions, answered
Straight answers on the numbers, the spikes, the dip — and what they don’t mean.
01Is 57.5K real measured traffic?
No — it is a third-party estimate. Semrush models estimated monthly organic visits from ranking positions and keyword volumes. It is a reliable way to compare visibility over time, but it is not the same as sessions in Google Analytics or clicks in Search Console, which is why we label it an estimate throughout.
02What did SDM do for this client?
Three horizons of work on a weekly, monthly and quarterly rhythm: technical clean-up and page consolidation, service pages for plumbing, AC and heating, electrical and water quality, city coverage across the Metroplex, Google Business Profile support, seasonal and how-to content, schema, internal linking, and local links and citations.
03What are the huge spikes on the chart?
One-month jumps — to around 143K in early 2024 and about 83K in 2025 — that fell straight back. A snapshot doesn’t explain them, so we don’t count them as results. The measure that matters is the typical level traffic settles at, which has risen every year since 2023.
04Why is traffic down 21%?
Semrush’s period comparison shows traffic easing after a mid-2026 high near 78K. At 57.5K it is still well above every earlier year’s typical level. Seasonality, algorithm updates and competitor movement can all cause this, and the snapshot alone doesn’t say which.
05How much of this traffic is branded?
About a quarter. Semrush’s US estimate puts branded traffic at 13.6K against 39.3K non-branded — around 74% of US organic visits come from people searching for a service, such as “emergency plumber”, rather than for the company by name.
06How do plumbing companies rank in multiple cities?
With one clear page per service, genuine local relevance for each city rather than duplicated location pages, a strong Google Business Profile, local links and reviews, and internal linking that connects every service to the areas it covers. Consistency across dozens of towns is what builds a higher base over time — the pattern this case study shows.
07Which searches does the site rank for?
Mostly commercial plumbing, HVAC and electrical searches across the Metroplex. The site is on page one for “emergency plumber” (246K monthly searches) and appears in Google’s local pack for its brand searches; commercial-intent keywords bring 33.3K of its 52.9K estimated US visits.
08Can you do the same for my home-services business?
It depends on where you start — your current rankings, service lines, market and competition. We set a measurable baseline in a free audit before any work begins, so you can hold us to the movement from it.
Work with SDM
Want this kind of visibility in your service area?
A free audit of your visibility, the pages worth fixing first, and a baseline to judge us against.