Single bug fix
A single bug fix quickly finds and repairs one specific breakage on your site: a form that does not submit, broken layout, a page that throws an error. Diagnosis, fix and verification.
Single bug fix — overview

A single bug fix is the targeted repair of one specific error on an already working site. Something broke or works wrong: a form does not send a request, a page throws an error, the layout is broken on mobile, a button does not click, the cart counts incorrectly — we find the cause and fix exactly that. Unlike refactoring (see the “Legacy code refactoring” service), where the code is tidied up and rewritten as a whole, a bug fix does not touch the rest — only the specific breakage. It is the fastest and cheapest service in site improvement: it suits when you urgently need to bring one thing back, not rebuild the site. The base price starts from 5,000 ₽ for diagnosing and fixing one simple problem (for example, repairing a form, fixing the layout of a block, removing an error on a page); complex bugs in old code or a heavy CMS are estimated higher. Sometimes a breakage cannot be fixed in a targeted way without reworking the core of the site — then we honestly explain in plain words what is going on and what the options are, and the decision stays with you. Picture this: yesterday the request form worked, today clients write that the “submit” button does not react — we find the cause and bring the form back.
Problems we solve
- Something on the site broke — you lose requests or sales, but a full rebuild is unnecessary and too slow.
- You cannot find the cause yourself — it is unclear where exactly the bug is and why it appeared.
- A contractor only takes it on “comprehensively and expensively”, but you need one specific fix.
- The failure scares clients away — the site throws an error, looks broken or does not work on mobile.
What's included in the Single bug fix service
- Accurate diagnosis: we find the cause of the breakage, not treat the symptom
- Fixing only what is needed — we do not touch the rest of the site
- A regression-free check: neighboring blocks work as before, on desktop and mobile
- A backup before the fix and a safe rollback — we will not make it worse
- A short, clear report: what was wrong, why, what we did
- If a targeted fix is impossible (a bug in the core or architecture) — we say so honestly and offer options
- A price for the specific fix — without a “just-in-case package”
What you get
- What was broken works again — requests and sales are not lost
- You fix it pointwise and cheaply — without rebuilding the whole site
- You understand the cause: you get a short report of what and why
- If the problem is deeper — you learn it right away in plain words and decide what to do next yourself
How the work goes: steps
- You leave a request and describe what and where broke (a screenshot if possible)
- We diagnose the cause and agree on the fix and the price
- We fix it, check on desktop and mobile, and provide a short report
Why PDV Expert
- Fixed price and timeline — no surprises on the invoice.
- Report and recommendations in plain language — clear without a technical background.
- In touch at every step and answering questions about the result.
FAQ
How is a bug fix different from refactoring?
Refactoring (see the “Legacy code refactoring” service) is tidying up the code as a whole: rewriting, simplifying, speeding up. A bug fix is repairing one specific breakage without touching the rest. One broken thing (a form, a button, the layout of a block) — that is a bug fix; the code as a whole is heavy and needs clearing up — that is refactoring. If fixing the bug would mean rewriting half the site, we will say so right away.
What if there are several problems?
This service is about one specific problem and its price. If there are several, we estimate each separately or offer a package or an improvement project. That way you pay for what is really needed, not for a “just-in-case package”.
What if the cause turns out to be deeper?
Sometimes a visible breakage is a symptom of a bigger problem (old code, a plugin conflict). We diagnose it and tell you in plain words whether a targeted fix is enough or a bigger repair is needed — the decision is yours, and you do not pay for a blind repair.
About the provider
The «Single bug fix» service is provided by PDV Expert — a team specialising in «Website creation and improvement». We work under contract and deliver a written report with recommendations.