Websites for plumbing and heating: heat pumps and bathrooms

The difference between the two routes is not a matter of taste but a matter of time. With a burst pipe, a boiler that failed in January or a blocked drain in a shop, the job is decided within minutes: it goes to the business whose phone number is on the screen without any searching. With a bathroom renovation, months often pass between the first search and the signature. During that time the customer looks at photos, reads about processes, compares, discards and comes back. The website has to carry both — the sprint and the long distance.

85 percent (Bitkom 2025) of trade businesses report that their customers expect constant availability. In plumbing and heating that is not an expectation aimed at a call centre but at a page that says, even at ten in the evening, whether somebody is coming out tonight or whether a call the next morning is the right move. An honest statement of emergency hours helps more than wording the business cannot live up to: a business that does not go out at night should write that down, and loses less by doing so than through a call that goes nowhere.

On the other side stands the renovation. 89 percent (Bitkom 2025) of businesses observe that customers expect individual offers. A bathroom is exactly that: not a catalogue item but a room with existing pipework, a screed height that grew over decades, a window in an awkward place and a family that has to manage three weeks without a shower. A business that merely claims this individuality on its website looks interchangeable. One that shows it — through photos from its own work, a process with time frames, examples of different floor plans — makes the difference visible before anybody picks up the phone.

The second customer journey rarely begins with a search for a business. It begins with an observation: the tiles are from 1988, the bath has not been used for years, getting in is becoming difficult. Between that observation and the first phone call lie weeks in which somebody collects pictures, estimates prices and wonders how to live for weeks without a bathroom. A website that only says “we renovate your bathroom” at this stage does not help. What is wanted are answers to the questions people are reluctant to put first to a stranger.

The most common of those questions is about money, and it is rarely asked openly. 87 percent (Bitkom 2025) of trade businesses observe that their customers have become considerably more price-sensitive. That does not mean everyone is looking for the cheapest option — it means nobody wants to start a conversation whose outcome exceeds their own budget several times over. A range on the page, in the form of orders of magnitude for a cloakroom, a standard bathroom and a full level-access renovation, prevents exactly that conversation — and the disappointment that follows it.

The second unspoken question is about duration. How long will the site stand open? Where does the family wash in the meantime? Who coordinates the tiler, the electrics and the drylining? A business that describes this process on its website — with approximate time frames and a note that they vary from property to property — takes the greatest uncertainty out of the enquiry. Photographs from its own workshop and its own sites carry the rest.

Heat pump enquiries often arrive as a single line: “what would a heat pump cost at my place?” That can only be answered responsibly after a look at the building. Between the line and the site visit, however, lies a great deal of information the owner already has and can enter in a few minutes — if the website asks for it. An enquiry form that captures these details in a structured way does not replace a visit. But it decides whether the visit takes place prepared or begins with a survey that could have been done on a screen.

What makes sense are details a layperson knows without a measuring instrument: the year the house was built, the approximate heated floor area, the type of heat emitters, the previous fuel and the age of the existing heat generator, how hot water is produced and whether insulation or windows have already been renewed. Add a photograph of the plant room and one of the front of the house. What a layperson cannot supply — heat load, flow temperature, hydraulic condition — stays with the site visit and is described as such on the page.

One point deserves a question of its own: the possible location of the outdoor unit. With air-to-water units, feasibility and effort depend on the space for the unit, the distance to the plant room and the distance to neighbouring buildings. A field asking “where could the outdoor unit stand?” with three options and a photograph of the intended spot can save the second visit. Form fields of this kind are the difference between an inbox full of question marks and a list that can be sorted by effort.

Many businesses put a table on their website in which the heat pump wins every row. That reads like advertising and works like it. More useful is a presentation showing which questions arise with which type of system at all — and which of them the owner can answer before the visit. This view is fair because it judges nothing, and it still sells, because it demonstrates competence instead of asserting it.

Such an overview can be built on two axes: what can be settled in advance and what needs the site visit. With an air-to-water heat pump the location of the outdoor unit dominates; with a ground-source system it is access to the ground including the permit situation; with a wood or pellet boiler it is space for storage and delivery; with a hybrid arrangement it is the interplay with the existing heat generator. Naming these points per system type without giving a recommendation offers orientation without committing — the recommendation belongs in the conversation.

Both routes end in the same place: an appointment in the diary. The way there, however, is of different length, and the website should not shorten it artificially. For the emergency, the appointment is the call. For bathrooms and heat pumps, several visits over a number of days usually lie between the first look and the enquiry — each of them an opportunity to settle something that would otherwise have to be settled on the phone.

For the long route it is worth naming the steps on the website. Not as a promise, but as a description of what actually happens: who gets in touch, within what period, what happens at the appointment, what it costs, how things continue. This openness costs nothing and answers the question that keeps many people from filling in a form: what happens when I press send?

A website for a plumbing and heating business is not a major project, but it is not a side issue either. 94 percent (Bitkom 2025) of trade businesses use a website of their own — so the difference is no longer whether one exists, but whether it serves both customer journeys. The effort arises where the content arises: setting the emergency hours, defining the service area, collecting pictures from the business, defining the form fields for heat pump enquiries.

Then begins the part many underestimate. Emergency hours change, staff come and go, funding conditions are adjusted, pictures of new bathrooms are added. A website untouched for two years shows it first in an emergency: through a number nobody answers any more. What ongoing care and maintenance covers therefore belongs in the decision and not in a footnote.