Generate Plumbing & Heating Company Address Lists

Plumbing and heating companies are probably the most fiercely contested trades target group in the DACH region in 2026 — the GEG obligation, the heat pump boom and an acute labor shortage hit an industry that already has an order backlog of 12 to 18 months. A precise plumbing and heating address list, filtered by specialization (heating, plumbing, renewable energy), size and region, is the entry ticket to owners who otherwise delete 30 pitch emails unread every day.

‍

‍

Who needs address lists for plumbing and heating companies — and why

Plumbing and heating companies are a very broad target group — from the solo plumbing craftsman to the 80-person heating modernizer with its own heat pump focus. For providers of trades software, heat pump manufacturing, materials wholesale and service-contract platforms, the clean list is the lever: anyone who writes to a heat pump specialist with "our new plumbing software" burns the quota.

For plumbing and heating software (MOSER, Easy-Bau, KWP), heat pump manufacturers (Vaillant, Buderus, Daikin), plumbing material suppliers (GC Group, Sanha) and service platforms (maintenance contracts, emergency-service brokerage), a specialization filter is mandatory. Once you are listed with a company, you often get 5–7 follow-up referrals from the guild.

If you also serve related trades, it is worth looking at electrical companies, roofers and ventilation builders — all three overlap on modernization and energy-transition projects.

‍

Understanding plumbing and heating companies as a target group

According to the Central Association for Plumbing, Heating and Air Conditioning (ZVSHK), there are around 50,000 plumbing and heating companies in Germany with roughly 330,000 employees and an industry revenue of around 50 billion euros. The majority are small businesses with fewer than 10 employees; the few large modernizers with 50+ employees often work as regional contractors for housing associations and energy utilities.

The industry theme of 2026 is the GEG obligation plus the heat pump wave. Since 2024, newly installed heating systems must be powered by at least 65 percent renewable energy — this has moved heat pumps, hybrid systems and pellets out of niche status. At the same time, BEG, KfW funding and municipal heat planning are bringing subsidy money into the market that drives modernizations. The result: plumbing and heating companies often have a 12 to 18 month order backlog — and precisely for that reason little patience for generic pitches.

A heat pump brand that sent its outreach specifically to heating-focused plumbing and heating companies in Bavaria and Baden-Württemberg with their own PV focus (with a concrete subsidy reference to the BEG) achieved a response rate of 15 percent — compared to 1.8 percent with an unfiltered trades list. The specialization filter is the main sales lever here.

‍

Six purchase triggers driving plumbing and heating companies in 2026

‍

What data you need in your plumbing and heating address list

Without these mandatory fields, the list stays a trades collection with wastage.

• Specialization: heating / plumbing / heat pump / PV coupling / bathroom modernization / emergency service. Mandatory filter.
• Owner or master-craftsman name: plumbing and heating companies are almost always owner-managed; the master decides on software, materials and brands.
• Number of employees: solo / 5–20 / 20–50 / 50+ — determines tool and material volume.
• Brand preference: Vaillant, Viessmann, Buderus or Stiebel partner. Visible on the website.
• Mobile number: plumbing and heating owners are on the job site during the day; landlines are almost useless.
• Website + Google reviews: indicators of the company's activity and degree of modernization.

‍

How to find plumbing and heating companies in LeadScraper

‍

Practical workflow – How to win plumbing and heating companies as customers

Plumbing and heating outreach follows hard-nosed workshop rules. No call between 8 a.m. and 4 p.m., no PDF in the first contact, no marketing speak. Those who respect the rhythm get through — the others burn money.

• Step 1 – Pull the list: LeadScraper list by specialization, number of employees and region. 200–500 companies per campaign.
• Step 2 – Enrich the data: owner name, mobile, brand-partner status, BAFA activity. Derivable from the website and the guild directory.
• Step 3 – Choose the channel: WhatsApp Business works better than email. Email only for larger companies with office staff.
• Step 4 – Outreach: first email or message at 6:30 a.m. or 5:30 p.m. Maximum 3 sentences, a concrete pain topic (BAFA, subsidies, materials, staff).
• Step 5 – Follow-up: call between 7:00 and 7:30 a.m. (start of the workday) or 5:00 and 6:00 p.m. (after hours). Never between 8 a.m. and 4 p.m.

For enrichment, guild directories, BAFA/KfW subsidy databases and Google Business profiles are the standard sources. Sales enablement tools are not needed here — plumbing and heating buys on direct personal contact.

‍

Common mistakes with plumbing and heating address lists

• Ignoring specialization: a plumbing specialist and a heat pump modernizer buy completely different things. Without a filter, the list is wastage.
• Outreach during core working hours: a call at 10 a.m. reaches no one. An email at 2 p.m. is read only after hours — often too late.
• Generic "your company" salutation: plumbing and heating masters expect to be addressed by first name. Without it, the open rate is halved.
• Missing BAFA / subsidy reference: in 2026, subsidy programs are the main sales lever. Those who do not reference them signal a lack of industry knowledge.

‍

Research plumbing and heating companies precisely with LeadScraper

LeadScraper delivers the filter depth that plumbing and heating outreach requires: specialization, brand-partner status, size and region. Instead of manually sorting through a list of 50,000 trades businesses, you describe in your own words which companies you want to reach.

Example filter combination: "Plumbing and heating companies in NRW and Hesse with a heat pump focus and Vaillant or Daikin partner status, 8 to 30 employees, with BAFA application service". The list arrives with owner/master-craftsman name, mobile, brand-partner note and verified email — ready to go for WhatsApp or email outreach.

Trades software providers, heat pump and hybrid heating brands, material and plumbing wholesalers, service/emergency-service platforms and specialized recruiters in the trades sector benefit in particular.

‍

Conclusion

Plumbing and heating companies are probably the most contested trades target group in DACH in 2026 — GEG, the heat pump boom and the labor shortage hit an industry in order backlog. Precisely this pressure makes them receptive to tools, brands and services that deliver real relief. Those who filter the list by specialization, address owners directly by first name and bring a concrete BAFA/subsidy reference achieve double-digit response rates in a market with 50 billion euros in industry volume. LeadScraper delivers the granularity that generic trades lists do not have.