What the customer is deciding
Before a customer calls a tradesperson, they are deciding whether to let this person into their house, whether they will do the job properly, and whether there is recourse if they do not. Every element of proof on the website answers one of those. A site that says "fully qualified and insured" in a sentence and shows a stock photo of a handshake answers none of them. Here is what does.
1. The trust bar
A slim strip on every page, under the header or above the footer, with the logos of your registrations and accreditations and, beside each, the registration number. Gas Safe with the number; NICEIC or NAPIT with the number; state licence numbers; trade body memberships; Which? Trusted Trader or Checkatrade if you use them. Each logo links to your entry on the issuing body's public register, so the customer can verify it in one tap.
The numbers matter more than the logos. Logos can be copied; a number that resolves on the register cannot.
2. Insurance, stated
An "Insurance and guarantees" section on the About page and a line in the trust bar: "Public liability insured to £X million; employer's liability; professional indemnity where applicable." Name the insurer if you are comfortable. Offer to show the certificate on request. Customers rarely ask; they notice that you offered.
3. Faces and vans
A photo of you, or the team, in work clothes, in front of the van with the livery visible. Names and roles. The customer will recognise the person who arrives, and the van that pulls up will be the one on the website. This is the cheapest and most effective trust element on the site and most trade sites omit it.
4. Real job photos with captions
Finished work, and where useful before-and-after, with a line for each: what it was, where (town), when. Organised by service and by area so the boiler page shows boilers and the Harrow page shows Harrow. The captions do the work: "Consumer unit replacement, Pinner, March" is proof of a real job in a real place; an uncaptioned image of a fuse box is a picture.
Ask customers' permission for photos of their property; most say yes; note it.
5. Reviews where the decision happens
Google reviews pulled onto the site, with space reserved so they do not shift the layout, placed near the Call and Quote buttons on service pages and area pages. Not on a testimonials page nobody visits. Filtered by service or town where the volume allows, so the reviews beside the boiler repair button are about boiler repairs.
Reply to every Google review, good and bad, because customers read the replies. The site can show the reply count.
6. Guarantees, in plain words
What you guarantee and for how long: "All our work is guaranteed for 12 months; manufacturer warranties on parts passed on in full." Stated on service pages and About. If you are part of a scheme that backs the guarantee (some trade bodies offer insurance-backed guarantees), say so and link to it.
7. How long, and where from
"Established 2009. Based in [town], covering [areas]." On the home page and About. Longevity and locality are proof; a firm that has been in the same town for fifteen years is not going anywhere.
8. Company details
Registered company name and number, VAT number if registered, registered address, in the footer. Legally required in several jurisdictions and reassuring everywhere. A sole trader states their trading name and base.
9. Process, briefly
What happens when a customer calls: "We'll ask for photos, give you a rough idea, book a visit, quote in writing before any work starts, and send an invoice you can pay online." A written quote before work is itself a trust signal, and saying so in advance sets the expectation.
10. Accreditation pages, for the big ones
For the registration that matters most in your trade (Gas Safe for heating, NICEIC or Part P for electrical, TrustMark, MCS for renewables), a short page: what the scheme is, why it matters to the customer, your number and register link, and what work it covers. These pages also rank for "Gas Safe engineer [town]", which is how some customers search.
What not to do
- "Fully qualified and insured" with no numbers.
- Logos you are not entitled to display. Schemes check, and customers can too.
- Stock photos of tradespeople.
- Testimonials typed into the page with first names only and no source.
- Claims of "the best" or "number one" you cannot support.
- Out-of-date registrations left on the site after lapsing. Renewal dates go on the calendar.
Building it as fields
Credentials as records: scheme name, logo, registration number, register URL, expiry date. The trust bar and the About page render from them; the expiry date triggers a reminder. Job photos as records with service, town, date and permission. Reviews pulled from Google via the Places API, cached daily, with a reserved-height container. Company details in site settings, rendered in the footer. The business maintains all of it without a developer.
Where this sits
The trust bar with linked numbers, real photos, tagged job galleries, reviews beside the buttons and stated guarantees are part of every trade website we build, because the call the site produces is a call from someone who has just decided to trust you, and this is the material they decided on.