The verdict in three sentences
For a financial advisory firm in London or Dublin with 3 to 12 advisers, the right 2026 budget is £9,500 to £17,000 (€11,000 to €19,500) for a custom website with financial calculators and online booking. A theme-based site at £3,000 to £5,500 does little to reassure business owners and affluent retirees, who judge your credibility within seconds. FCA or Central Bank of Ireland disclosures are non-negotiable: a non-compliant site exposes the firm to supervisory findings and undermines prospect trust.
Theme-based or custom: what you are really buying
The advisory market in London and Dublin is crowded: prospects compare three or four firms before booking a first meeting. Your website is effectively your first interview.
| Criterion | Theme-based site (WordPress) | Custom site with calculators |
|---|---|---|
| Upfront budget | £3,000 to £5,500 | £9,500 to £17,000 |
| Delivery time | 3 to 5 weeks | 8 to 12 weeks |
| Financial calculators (pension, ISA, IHT) | None, or generic widget | 2 to 4 bespoke calculators |
| Online booking | Basic plugin | Calendar per adviser, pre-qualification questions |
| Expertise pages (retirement, succession, business owners) | 4 to 6 pages | 10 to 20 pages optimised for local SEO |
| Mobile performance (Lighthouse) | 55 to 75 | 90 and above |
| Monthly maintenance | £50 to £100 | £100 to £240 |
A theme-based site suits a solo adviser starting out. Once a firm has three or more advisers, custom work pays for itself through lead quality: a pension calculator showing a higher-rate taxpayer the value of salary sacrifice captures a warm contact, with income and retirement horizon already filled in.
Regulatory disclosures and hosting
An advisory firm operates under authorisations that require precise information on its website. Missing disclosures are among the first issues flagged in financial promotions reviews.
| Obligation | Expected website content | Indicative 2026 extra cost |
|---|---|---|
| FCA or CBI authorisation | Firm reference number, regulator statement, link to the register | Included in legal pages |
| Consumer Duty | Clear fees, plain-language explanations, fair value messaging | £600 to £1,500 |
| Financial promotions rules | Balanced risk warnings, no misleading claims | £300 to £700 per key page |
| Calculator disclaimers | Assumptions shown, illustrative nature, no guarantee | £350 to £800 per calculator |
| UK GDPR or GDPR and cookies | ICO or DPC compliant banner, retention policy | £450 to £1,000 |
| UK or EU hosting | ISO 27001 data centre, daily backups | £20 to £70 per month |
| Complaints procedure | Process, response times, Financial Ombudsman Service or FSPO | Included |
Calculators need particular care: each result must show its assumptions (tax band, allowance limits, assumed growth) and state that it is not personal advice. We recommend having your compliance officer sign off the copy before launch.
What a well-built advisory website earns
The business case is straightforward because client value is high. A qualified meeting that converts is worth £1,300 to £3,500 in annual fees (initial advice fees plus ongoing charges on assets), and a wealth client typically stays 8 to 12 years.
| Indicator (2026 order of magnitude) | Theme-based site | Custom site |
|---|---|---|
| Monthly visitors after 6 months | 400 to 800 | 1,200 to 2,500 |
| Contact conversion rate | 0.8% | 2 to 3.5% |
| Meeting requests per month | 3 to 6 | 25 to 60 |
| Qualified meetings per month | 1 to 2 | 5 to 10 |
| Client conversion rate | 25% | 30 to 35% |
| Annual fees generated | £3,900 to £10,500 | £15,500 to £60,000 |
Mini case study
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Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Catherine, managing partner of a 6-adviser firm in Dublin, invests €15,500 in a custom site with pension and succession calculators, plus €190 per month for maintenance and EU hosting. In year one, total cost reaches 15,500 + (12 x 190) = €17,780. The site produces an average of 6 qualified meetings a month, 30% of which convert, giving about 21 new clients a year. At €2,200 of annual fees per client, the firm earns roughly €46,000 in year one, a 2.6x return before counting future years.
FAQ
How much does a website cost for a solo adviser starting out?
A solo adviser can start with a theme-based site at £3,000 to £5,500, delivered in 3 to 5 weeks. Budget £50 to £100 per month for maintenance and hosting.
Are financial calculators really worth it?
Yes: on our projects, a pension or IHT calculator multiplies the conversion rate of an expertise page by 2 to 3. Expect £1,300 to £3,000 per calculator depending on the complexity of the tax rules.
What regulatory information must appear on the site?
Your FCA firm reference number or Central Bank authorisation, the regulator statement, your complaints procedure and the relevant ombudsman. Calculators must show assumptions and an illustrative-only warning.
Do we need UK or EU hosting?
It is not strictly mandated, but clients share sensitive financial data. ISO 27001 hosting in the UK or EU costs £20 to £70 per month and becomes a selling point.
How long does a custom build take?
Allow 8 to 12 weeks, including 2 weeks of compliance review. Starting in September lets you go live before the January to April tax year end rush.
Let's scope your project. We scope your advisory firm website (expertise pages, calculators, FCA or CBI compliance, local hosting) within £9,500 to £17,000 and an 8 to 12 week schedule. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
