Data study · Wikipedia readership in the AI answer era
Wikipedia Pages on Heat Pumps, Water Heaters and Other Home Systems Lost 50.4% of Their Readers Since 2022
212 English Wikipedia articles on HVAC, plumbing, electrical and roofing topics drew 12.4 million views in the past 12 months, half of the 24.9 million they drew in 2022. The Heat pump article alone fell 55.3%.
Analysis of 212 home system and trade articles on English Wikipedia, 2022 vs October 2025 to September 2026 · Wikimedia pageviews via BigQuery, October 2026
Key findings
- 1
212 home system and trade articles drew 12.35 million views from October 2025 to September 2026, down 50.4% from 24.90 million in 2022.
- 2
Plumbing pages fell 53.8%, electrical pages 53.2%, HVAC pages 51.4% and roofing and exterior pages 43.6%.
- 3
The Heat pump article fell 55.3% (501,646 to 224,286 views), Circuit breaker 60.8%, Septic tank 57.2% and Air conditioning 40.9%.
- 4
HVAC pages kept their summer peak: July views were 1.41 times April views in the past year, up from 1.19 times in 2022, because spring reading fell more than summer reading.
- 5
Only 10 of 212 articles (4.7%) gained views, among them Furnace (central heating) at 10.0% and Metal roof at 6.2%.
Summary
Picture a heating and cooling company in Atlanta that gets most of its new customers in two bursts: the first hot week of summer and the first cold snap of winter. Before they call, many homeowners read up on heat pumps, SEER ratings or furnace sizes. That reading is shrinking, and a lot of it may now happen inside an AI answer.
We tracked 212 Wikipedia articles on the systems a home service company works on, from water heaters to circuit breakers to asphalt shingles. In the past 12 months they drew half the readers they had in 2022.
The seasonal rush has not gone away. HVAC pages still spike in July. But the steady research that happens in the off-season, when homeowners compare options before they need them, has dropped the most.
What we measured
We built a seed list of home system and trade topics in four groups and matched each to its English Wikipedia title. We summed desktop and mobile web views and compared calendar year 2022 with October 2025 to September 2026.
For seasonality we compared each calendar month of 2022 with the same month in the past 12 months. We excluded articles with fewer than 1,000 views in 2022 or a change of more than 20 times either way.
Every trade lost at least 40% of its readers
Change in total views by trade:
% change
| Trade | Articles (N) | 2022 views | Past 12 months | % change | Median article change |
|---|---|---|---|---|---|
| Plumbing and water | 47 | 5,723,408 | 2,644,268 | -53.8 | -49 |
| Electrical and solar | 46 | 6,994,261 | 3,273,421 | -53.2 | -57.8 |
| HVAC | 49 | 5,641,360 | 2,743,486 | -51.4 | -50.3 |
| Roofing, siding and envelope | 70 | 6,539,346 | 3,691,457 | -43.6 | -41.1 |
| All trades | 212 | 24,898,375 | 12,352,632 | -50.4 | -48.1 |
Source: aisearchoptimization.net analysis of 212 home system and trade articles on English Wikipedia, 2022 vs October 2025 to September 2026 · Wikimedia pageviews via BigQuery, October 2026
Roofing and exterior topics held up best, though they still lost more than two in five readers. Mobile web views fell 53.9% and desktop 46.8%.
The pages homeowners read before calling a pro fell hardest
Some of the most-read home system pages:
| Article | Trade | 2022 views | Past 12 months | % change |
|---|---|---|---|---|
| Air conditioning | HVAC | 526,290 | 310,780 | -40.9 |
| Heat pump | HVAC | 501,646 | 224,286 | -55.3 |
| Solar panel | Electrical | 472,639 | 209,686 | -55.6 |
| Circuit breaker | Electrical | 324,483 | 127,205 | -60.8 |
| Septic tank | Plumbing | 283,677 | 121,478 | -57.2 |
| Thermostat | HVAC | 155,608 | 61,981 | -60.2 |
| Sump pump | Plumbing | 114,600 | 68,399 | -40.3 |
| Water heating | Plumbing | 94,695 | 38,083 | -59.8 |
| Asphalt shingle | Roofing | 31,857 | 20,163 | -36.7 |
| Furnace (central heating) | HVAC | 26,654 | 29,316 | 10 |
Source: aisearchoptimization.net analysis of 212 home system and trade articles on English Wikipedia, 2022 vs October 2025 to September 2026 · Wikimedia pageviews via BigQuery, October 2026
Rainwater harvesting (down 82.0%), Solar water heating (down 77.9%), Humidifier (down 74.3%) and Air source heat pump (down 72.6%) were among the largest drops for pages with at least 50,000 views in 2022.
Summer peaks survived; off-season research did not
Comparing each month with the same month in 2022 shows where the loss is concentrated for HVAC.
Views
| Month | 2022 | Past 12 months | % change |
|---|---|---|---|
| Jan | 504,188 | 247,610 | -50.9 |
| Feb | 419,797 | 200,532 | -52.2 |
| Mar | 472,235 | 191,783 | -59.4 |
| Apr | 440,611 | 196,495 | -55.4 |
| May | 456,320 | 218,367 | -52.1 |
| Jun | 468,299 | 269,863 | -42.4 |
| Jul | 523,983 | 277,954 | -47 |
| Aug | 494,718 | 206,716 | -58.2 |
| Sep | 470,411 | 193,568 | -58.9 |
| Oct | 445,850 | 247,887 | -44.4 |
| Nov | 487,919 | 258,080 | -47.1 |
| Dec | 457,029 | 234,631 | -48.7 |
Source: aisearchoptimization.net analysis of 212 home system and trade articles on English Wikipedia, 2022 vs October 2025 to September 2026 · Wikimedia pageviews via BigQuery, October 2026
June fell the least, when people with a broken air conditioner look things up in a hurry, followed by October and July. March and September fell the most, followed by August and April; spring is when many homeowners plan upgrades ahead of time. Plumbing and electrical pages show little seasonality in either year.
What this means
Home service companies lean on research-stage content to win the homeowner who is comparing options before a replacement. That stage appears to be moving into AI answers, and the off-season planning traffic is shrinking fastest. The urgent summer and winter calls still come, but homeowners arrive with an answer already in hand. AI search optimization for a contractor is about making sure that answer includes your company name.
Give AI tools the facts they need to recommend you: service area, the systems you install, brands you service, typical price ranges and response times. Keep your business profile and reviews current. When a homeowner asks an AI who to call, are you on the list? Find out with a free AI visibility audit before deciding whether you need an AI SEO agency at all.
Limits
Wikimedia pageview counts include some automated traffic that its filters do not catch, and Wikimedia changed how it detects bots in 2025, which lowers counted views from that point on. Some of the change in any period may reflect better bot filtering rather than fewer human readers.
We count views of titles that had at least 5 views in a given month on a given site, which drops a very small tail of rarely read pages.
The seed list was built by hand and covers common residential systems, not every trade topic.
Wikipedia readers are worldwide, so seasonal patterns mix the Northern and Southern Hemispheres.
Brand and product pages were avoided where possible; the list covers systems and materials.
Embed this research
Add the charts from this study to your page. The embed links back here.
<iframe src="https://aisearchoptimization.net/embed/data-studies/home-systems-trades-wikipedia-decline" title="Home System Pages on Wikipedia Lost 50.4% of Readers" width="100%" height="720" style="border:0" loading="lazy"></iframe>
Cite this study
APA
Grenyo, K. (2026). Home System Pages on Wikipedia Lost 50.4% of Readers. AI Search Optimization. https://aisearchoptimization.net/resources/data-studies/home-systems-trades-wikipedia-decline
Plain link
Home System Pages on Wikipedia Lost 50.4% of Readers - AI Search Optimization - https://aisearchoptimization.net/resources/data-studies/home-systems-trades-wikipedia-decline
Frequently asked questions
Are homeowners reading less about heat pumps online?
On Wikipedia, yes. The Heat pump article drew 224,286 views in the past 12 months, down 55.3% from 501,646 in 2022.
Which home trade topics lost the most readers?
Plumbing pages fell 53.8% and electrical pages 53.2% between 2022 and the past 12 months. Roofing and exterior pages fell the least, 43.6%.
Did the summer HVAC peak disappear?
No. HVAC pages still peak in July. July views were 1.41 times April views in the past year, up from 1.19 times in 2022, because spring reading dropped more.
Did any home system pages gain readers?
Only 10 of 212 (4.7%) gained views, including Furnace (central heating), up 10.0%, and Metal roof, up 6.2%.
Related studies
- Wikipedia readership in the AI answer eraLegal Concept Pages Lost 46.9% of Wikipedia Readers
- Wikipedia readership in the AI answer eraSEO vs GEO on Wikipedia: SEO Page Views Down 51.9%
- Wikipedia readership in the AI answer eraFinance Explainer Pages on Wikipedia: Median Drop of 49.9%
- Wikipedia readership in the AI answer eraAI Topics Draw 2.9x the Wikipedia Readers of Search Engines
See where AI search leaves you out
Run the free AI visibility audit. If you want the fixes done for you, the plan is a flat $299/month.