A service page is the page that has to do the selling when you are not in the room. It is usually the page that gets the least attention, because it is written last, in a hurry, by whoever has time.
Here is what earns its place on one, roughly in the order a reader wants it.
The first screen: what, for whom, where
Someone arriving from a search has a question that must be answered before they scroll: is this the right place. Not "welcome to our website". Not a slideshow.
State the service, who it is for, and where you do it, in a sentence a human would say out loud. "We install and service industrial generators for factories, hotels and hospitals across Lagos and Ogun State." That sentence does more work than a paragraph about passion.
Put a way to contact you within reach of that sentence. Not at the bottom. Some readers are ready immediately and making them scroll to find you is an unforced error.
The problem, described accurately
Before someone believes you can solve their problem, they need to believe you understand it. This is the section where you describe the situation they are in, in the words they would use.
Accuracy is what makes this work. Generic descriptions -- "in today's competitive market, businesses face many challenges" -- signal that you deal with nobody in particular. Specific ones -- "you are running three shifts off one generator and the maintenance schedule slipped six months ago" -- signal that you have stood in their building.
Write this section by remembering actual conversations, not by imagining a customer.
What is actually included
The most commonly skipped section, and the one readers most want.
List what the work includes. List what it does not. If a customer has ever been surprised by an exclusion, that exclusion belongs on this page in writing. Every business has a handful of these -- the survey that is quoted separately, the third-party licence the client buys directly, the data migration that depends on what format the old records are in.
Naming the exclusions up front feels like it costs you sales. It does the opposite: it removes the argument that would otherwise happen at invoice time, and it makes the rest of your page more believable, because someone willing to tell you what is not included is more credible about what is.
Price, or the honest reason there is none
The single most common question, and the one most service pages avoid.
If you have fixed prices, publish them. If the work genuinely varies, publish the range and the two or three things that move it. "Most installations fall between X and Y. What moves it is the number of floors, whether the existing wiring can be reused, and how far the unit sits from the panel."
That is more useful than a number, and it is honest. What is not acceptable is silence, because silence is read as "expensive" or "they will size the price to what I look like I can pay".
Proof, if it is real
Photographs of work you have done. Named clients if they have agreed. Testimonials with a real name and a real business attached.
If you do not have these yet, leave the section out. An empty proof section is better than an invented one. Stock photographs of models in a boardroom and testimonials attributed to "Client, Lagos" are worse than nothing -- readers recognise both instantly, and the recognition damages everything else on the page.
What to cut
The company history. Nobody arriving from a search cares what year you were founded. If it matters, it is one clause in a sentence, not a section.
Adjectives about yourselves. Innovative, dynamic, world-class, passionate, excellence. These words appear on every competitor page too, which is exactly why they carry no information.
The stock photographs. The handshake, the headset, the diverse team pointing at a laptop. They are recognisable, they are on a thousand other sites, and they make a real business look like a template.
Long paragraphs about your process if your process is the same as everyone else's. Three lines is enough.
The last screen
End with one clear action, and make it the action your customers actually take. For most Nigerian businesses that is WhatsApp, not a form with nine fields. Say what happens next after they contact you, and how quickly. "Message us and you will get a reply the same working day" sets an expectation you can keep, which is a better first impression than a form that vanishes into an inbox nobody reads.