A testimonial says you were good. A case study shows what you actually did, what it cost, and how long it took. Only one of those closes a nervous buyer.
TL;DR Problem, what you did, result. Real photos, real town, real numbers. Publish the cost and timeline. Most businesses hide both, which is exactly why publishing them works.
The structure
Four parts, in order, every time.
| Section | Content | Length |
|---|---|---|
| The situation | What was wrong, what it was costing them | 2 to 3 sentences |
| What we found | The diagnosis, including anything unexpected | 3 to 5 sentences |
| What we did | The actual work, and the decisions you made | 1 to 2 paragraphs |
| The result | Outcome, cost, timeline, how it is holding up | 2 to 3 sentences |
The “what we found” section is the one that sells. Anyone can do the work. Finding the real problem is the skill, and it is the thing customers are actually paying for.
Write it like this
The situation. A 1920s house in the Fall River Highlands. The owners had been told by two other companies that the whole system needed replacing, at around $12,000. Their heat was working intermittently and getting worse.
What we found. The boiler was fine. The problem was a partially blocked return line behind a wall that had been closed up during a kitchen remodel about fifteen years ago. Neither previous company had opened anything up to look.
What we did. Cut a small access panel rather than the full wall, cleared and repaired the line, replaced two corroded valves while we had access, and made the panel good. We recommended against replacing the boiler.
The result. Full heat restored in one day. Total cost $1,340 including materials. Still running two winters later. We talked them out of a $12,000 job, which is why they have recommended us to four neighbours since.
That paragraph does more work than any amount of copy about quality and dedication. It demonstrates diagnosis, restraint, honesty and durability, and it names a number.
Publish the cost
Owners resist this hardest. It is the highest-value element on the page.
What hiding cost does. People assume the worst and do not enquire. You never hear from them, so the loss is invisible.
What publishing does. Filters out anyone whose budget was never going to work, before they take your time. Signals confidence. Gives the reader a concrete anchor rather than a fear.
How to publish it safely
- Give the actual figure for that job, with the scope stated.
- Add the variables. “Costs vary with access and whether venting needs work.”
- Include a typical range for that service type alongside it.
You are not quoting them. You are showing them what a real job cost, which is what they wanted to know.
Publish the timeline too
“How long will this take” is the second question and it is almost never answered.
State it plainly. “One day.” “Three days, including a day waiting on a part.” Honesty about a delay actually builds trust, because it tells people you will be straight with them when something slips.
Feature the actual customer
- Name and town, with permission. “The Rodrigues family, Somerset.”
- A photograph of them if they will, which is unusual enough to be memorable.
- A short quote in their words, not polished.
- A video clip, thirty seconds, filmed on your phone.
Get permission at the moment they are pleased, standing in front of the finished work. Asking three weeks later by email rarely works.
Photos are non-negotiable
- Before, during, and after. The before shot is the one that never exists, so make it a rule.
- Same angle and framing across the set.
- The detail shot. The join, the finish, the thing nobody will see once it is closed up.
- Something recognisably local in at least one frame.
The page layout
H1: [Service] in [Town] | [The headline result]
One line: the situation, compressed
→ Before/after photo pair, immediately
H3: The situation
H3: What we found
H3: What we did
H3: The result ← cost, timeline, durability
H3: What they said ← quote or video
H3: Could we do this for you?
→ CTA: phone + booking, with a range for this service type
How many, and which
Six to ten strong case studies beats forty thin ones.
Pick deliberately. Cover your highest-margin service, your most common job, the objection you hear most, and the type of work you want more of. Your case studies are a signal about what you do, and people ask for what they see.
Skip anything where the customer was difficult, the outcome was mixed, or you cannot show photos.
Write one properly this week, using the four-part structure and a real cost. Then send it with your next quote instead of a bare price. That single change alters how the number lands.
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