Hangzhou old official website used for years: refresh or rebuild? Budget and timeline?

If your old Hangzhou official website has been used for years and you are planning a revamp, don't rush to ask whether to rebuild or refresh only part of it. Based on 2026 Hangzhou website construction and redesign delivery practices, first check whether the existing site can still be used and whether the business needs a different backend interaction model. Partial optimization suits situations where the legacy code can still be maintained; the typical budget is about CNY 5,000-20,000 with a 2-4 week timeline. A full rebuild suits old sites with outdated source code, messy data, or obvious security vulnerabilities; the typical budget is about CNY 20,000-60,000 with a 6-10 week timeline. Below we explain the decision criteria and boundaries based on project experience.

Before a redesign, clarify the boundary between a full rebuild and partial optimization

A full rebuild typically means abandoning the original design mockups and the old backend, then re-organizing columns, visuals, front-end and back-end systems, and setting up 301 redirects for SEO URLs. Partial optimization is more like taking an old site from 'it can run' to 'it looks good and works well'; the backend and data structure remain unchanged, and changes are concentrated in templates and interactions.

• Partial optimization suits sites with outdated page styles, broken mobile display, or where you want to adjust the copy and conversion buttons, but the old backend can still publish content normally.
• Full rebuild suits sites where you cannot log in to the backend, the code has become messy from patches, the PHP or database version is too old, or you want to add online payment or a membership system but the old architecture cannot support it.

How can you tell which one your site needs? You can ask an internal or external technical person to do a code health check first, to see whether core modules can be extended at low cost, and then decide how much to invest. This health check usually costs only 5%-10% of the redesign budget, yet it can save you from the rework cost caused by going in the wrong direction.

Four dimensions for deciding between a full rebuild and partial optimization

Based on our team's experience evaluating enterprise website redesigns in Hangzhou over the past few years, we usually score projects along four dimensions (data, business, technology, and budget) rather than simply looking at the quotation. In Hangzhou, companies in foreign trade, e-commerce agency operations, and equipment manufacturing are especially sensitive to how often the official website is updated. Customers often reach a site by searching for Hangzhou plus the product name. If the page still shows past cases and certificates from years ago, visitors may doubt whether the company is still running normally, which in turn affects sales inquiries.

1. Whether the old site data can still be used: Are historical orders, member data, and article data retained? If database exports show garbled text or the table structures are incomplete, the risk of choosing partial optimization begins to increase.
2. Whether the redesign goal exceeds the existing structure: If you only want to change the visual skin, choose partial optimization; if you want to change the ordering system, keyword strategy, or article columns, a full rebuild should be considered.
3. Code maintainability: If the old site has been modified by three or four different development teams and the code is full of patches everywhere, doing a full rebuild is often less hassle than adding features to the existing site.
4. Budget and timeline ceilings: Rebuilding design mockups, front end, and backend usually takes 6-10 weeks. If your schedule only allows three weeks to launch, you will most likely have to limit yourself to partial optimization or a template change.

Among these four dimensions, the technology dimension should be considered first because many owners are not trying to change the design; they want to solve hidden problems such as a backend that freezes or the inability to maintain the site from a mobile phone. If you talk about a redesign plan without a technical health check, the budget tends to keep going up later.

Hangzhou corporate website redesign: experience range for budget and timeline

Here are the experience ranges from Hangzhou local project deliveries in 2026, so you can compare budget and schedule.

• Partial optimization: budget approximately CNY 5,000-20,000, timeline about 2-4 weeks. It includes UI adjustments, copy restructuring for 3-8 pages, and mobile adaptation. It does not include new feature development.
• Full rebuild: typical budget CNY 20,000-60,000, timeline about 6-10 weeks. It includes requirement sorting, prototype design, custom interface, front-end and back-end development, and local installation and deployment.
• Template modification: can go live for just a few thousand yuan, but later expansion and originality are limited. Suitable for tight budgets or when you want to test the business first.

Where does the difference come from? Mainly the workload and post-delivery responsibility. For the same request such as please add a form, in partial optimization the developer charges by the hour, while in a full rebuild it is often included in the delivery scope. Before delivery, the contract should define which changes are considered additions and which are considered bug fixes, to avoid disagreement over what 'done' means.

Also, according to common Hangzhou local delivery practice, milestone payment is typical: about 30%-40% is paid as a contract deposit, and the balance is paid after delivery and acceptance. When signing the contract, make sure to confirm source code ownership and ongoing maintenance fees. Verbal promises should be written into the contract. Here is a lesson from a real delivery: in 2026, we helped a Hangzhou foreign-trade company rebuild its old website. The client asked us to keep the existing product backend and to modify the page framework without downtime, with a budget of about CNY 30,000. We thought it would just be a front-end template change, but found that the old CSS was tightly coupled with the backend interfaces. In the end we spent three more weeks and exceeded the budget by about CNY 6,000. Looking at the existing technical documentation and code comments before a redesign can save many detours.

Common problems during a redesign and acceptance checklist

Let's begin with common problems, and then give an acceptance checklist for Hangzhou local companies to check item by item before signing a contract.

• No 301 redirects are created, and organic search traffic drops. When old page URLs change, each one needs to be redirected and submitted through the search engine's site change tool.
• Only the front-end pages are changed, but the backend editor is not optimized. The marketing team ends up with a backend that is hard to manage, and the company returns to the state of needing a programmer for every sentence change.
• Over-design. Loading the first screen with interactive effects slows down the page and raises the bounce rate.
• Insufficient documentation delivered. Without FTP, domain, backend account, authorization certificates, or framework notes, future handover to a new maintenance team becomes especially troublesome.

Your acceptance checklist should include the following:

• Check whether the front end displays correctly on PC, mobile, and tablet, and whether the key functions are usable.
• Check whether 301 redirects from old pages are working and whether the console reports any 404 errors.
• Verify that the backend editor can normally change titles, replace images, and publish articles.
• Check if source code, database, deployment documentation, passwords, and accounts are handed over completely at once.
• Ask how long the free bug-fix period lasts after launch; 1-3 months is common.

Applicable scenarios and boundaries: when you don't need to rush a redesign

Suitable for a full rebuild: the original official website cannot even publish content, or the business model has changed from single-page display to online ordering or a membership system, or the site is rebuilt when changing domain names or servers anyway. Suitable for partial optimization: the site only looks dated, content updates are normal, and the backend is still usable.

There are three boundary scenarios where a redesign need not be rushed. First, if the website content itself is still empty talk and has no clear purpose. Second, if organic search traffic is naturally low, you should first investigate why there are no visits before spending money on a redesign. Third, if the budget is lower than half of the typical range for a full rebuild while complex new functions are being added, do not force it; partial optimization or template modification is more realistic.

FAQ

Will the search rankings of my website drop after a redesign?

If 301 redirects are not set up, rankings will most likely fall. Keep the old URLs and redirect each one, and ask the service provider to submit the site change detection. Based on experience, rankings gradually recover within 1-3 months; old sites with higher authority recover faster.

What is the difference between a local agency in Hangzhou and an out-of-town agency for redesign?

Local agencies can usually visit your old site and discuss modification details in person; out-of-town agencies rely more on remote communication. However, the quality of delivery depends on the code and the project manager. The key is to sign for source code ownership, response time, and acceptance standards.

Can customer data and order records in the old website be migrated to the new site?

Yes, they can be migrated, but it depends on the database structure and whether the old system is encrypted. Before making a plan, ask a technical person to review the database tables. If the migration workload is large, the budget should be increased; this is often a common source of additional fees later.

What materials usually need to be provided for partial optimization?

Usually you need to provide the latest company profile, product photos, contact information, and the old page content you want to keep. If you want to change the copy, it is advisable to compile the core selling points into a document first to reduce back-and-forth revision time.

Will a full rebuild waste the good pages of the old website?

No, good copy and design can be reused in the new site. Based on experience, identify the content that cannot be published through the backend and turn it into templates; product pages that are only occasionally updated can be maintained through the editor system, saving money on long-term development arrangements.

A redesign is not about making pages look flashier than others. First think clearly through why you are changing, who the changed site is for, and how it will be maintained. For old-site redesigns in Hangzhou in 2026, our suggestion is to spend half a day on an internal health check first, then invite one or two local vendors to discuss on-site, and compare proposals and response speed. A full rebuild is suitable for companies with a broken backend or business upgrades; if the old site is only visually dated, partial optimization is safer. If the budget is insufficient, choose a lighter revamp rather than accumulating technical debt.