Instant valuations for UK estate agents
Win the instruction before the vendor rings anyone else.
KerbWorth adds an instant-valuation widget to your website. Homeowners get a sold-price-backed estimate in two minutes; you get their details, the property facts, and their selling timeline - before a portal does.
Captures sellers on every channel you own — your website, your shop window, your email signature, your socials.
First month free · No lead, no charge · Cancel anytime
BBramley & Stone
Homes that move with you.
Period houses, garden flats, and new developments across Didsbury, Chorlton, and Withington.
Featured homesView all
Widget Studio
See the widget on your own website first.
Paste your website address, start from a first style match, and fine-tune the widget before you create an account. Your setup carries straight into your account.
How it works
Turn your website visitors into valuation appointments.
The homeowners researching their own home's value are your next instructions. Give them the answer on your website instead of losing them to a portal.
Add the widget to your website
One small script, styled to your brand in minutes. It works alongside whatever your site runs on - no rebuild, no portal.
Homeowners get an instant estimate
They enter their postcode, confirm the property details (we prefill the floor area from EPC records where we can), and see a data-backed value range in about two minutes. Landlords can ask what the home would let for instead — the first step offers both.
You get the vendor's details
Name, phone or email, the property facts, the estimate, and how soon they are thinking of selling - in your lead inbox and ready to book the market appraisal. Before a lead reaches you, the seller confirms their phone number with an SMS code — you call a real person, not a form fill.
It works. So we put our money on it.
Owners who visit your website already want to know what their home is worth. The widget turns that moment into a seller lead with name, phone and address.
We are so sure of this that we guarantee it: a month in which your widget brings you no lead at all is a month you do not pay for.
No form, no discussion. We see it on our side and refund that month automatically, before you would think of asking.
Our agencies see their first leads within a week. That is why we can promise it.
Counts once the widget is live on your site for the whole month. Details in the terms.
Lead inbox
Every valuation request, ready for the appraisal call.
The vendor's name, contact details, valuation range, property facts, and selling timeline in one overview - with email alerts to the right negotiator the moment a request lands.
LeadPhoneValuationPropertyStatus
Sarah Whitfield+44 20 7946 0921£520,000 - £570,000Terraced house, 1,180 sq ftNew
James O'Connell+44 20 7946 0873£240,000 - £265,000Flat, 645 sq ftQualified
Priya Shah+44 20 7946 0855£415,000 - £455,000Semi-detached, 990 sq ftAppraisal booked
New vendor leadTo your valuations inbox
Sarah Whitfield requested a valuation for 18 Palatine Road, M20. Indicative range: £520,000 - £570,000. Thinking of selling within 6 months.
Channels
One lead engine for every channel you own
Step one puts the widget on your website. The same link works everywhere else you meet sellers.
Bramley & StoneWhat is your home worth?Scan the code with your phone
Bramley & StoneWhat is your home worth?Two minutes, no obligation.Request a free valuation
Sophie TurnerBramley & StoneWondering what your home is worth?Request a free valuation
- Your websitethe widget on your own site
- Your valuation pageincluded, even without a website
- Shop window & boardsprint-ready cards with a QR code
- Email signatureone paste, and every email sells
- Social mediaone link for every profile and post
- Your dashboardsee visits and leads per channel
Pricing
Simple monthly pricing — every branch included.
One plan with everything included. Set up the widget, publish it on your website, and start with a free first month.
First month free
Preview it on my websiteKerbWorth
£69/ monthAny month without a single lead is free. Automatically, no request needed.
Excluding VAT, every branch of your agency included. Your payment details are saved with Stripe when you start the subscription — nothing is charged for 30 days, and cancelling before day 30 costs £0. Publishing stays your decision.
- First month free, cancel anytime
- Unlimited sale and rental estimates, unlimited leads — no monthly quotas
- Every branch of your agency included — one widget, one lead desk
- Works on all your channels (website, social media, QR, window card, email signature)
- One copy-paste script, styled to your brand
- Leads in your lead desk and straight to your CRM (Zapier, Make or n8n)
- Pay by card or Bacs Direct Debit — secure billing via Stripe
A free tool is usually the top of someone else's paid funnel — the price appears later, per lead, per add-on or per branch. KerbWorth is one flat price with unlimited valuations and leads that belong to your branch alone, from day one.
Your numbers
See what one won instruction is worth.
Assumptions, not our data: a £272,000 sale at 1.4% commission. Move the sliders to your own numbers.
At these numbers one won instruction covers 56 months of KerbWorth.
Quality & setup
Consent-first capture
Consent is required before any result is shown, contact details can be verified, and every lead carries an audit trail. Your data stays yours.
Installs on any site
WordPress, Squarespace, a custom build, or whatever your web partner ships - paste one snippet or send them the install guide.
Leads straight into your CRM
Connect your account to Zapier, Make, or n8n in minutes and every new lead lands in your own CRM or workflow automatically.
Need the exact install steps?Open the install guide
White label & custom design
Prefer the widget fully in your own brand — no vendor name, styled to your website down to the last pixel? We do white-label and fully customized deployments for individual agencies. Email us and we'll discuss what you need.
Questions?
Talk to the founder
You'll be emailing me directly: no support queue, no sales script. I reply myself, within one business day.
The data
Where the numbers come from.
England & Wales, from the register itselfEvery estimate draws on HM Land Registry sold prices and market data, delivered through PropertyData.
Every valuation starts from what actually sold near the postcode — Land Registry recorded prices — and sizes the property from its EPC floor area where one exists. Both come to us through PropertyData, our licensed route to those registers.
HM Land Registry
Price Paid Data: the recorded sale price of every registered residential transaction in England and Wales.
Monthlygov.uk — Price Paid DataEnergy Performance of Buildings Register
EPC-recorded internal floor areas, used to prefill the property size so the seller does not have to guess it.
Continuousgov.uk — Find an energy certificateWhat our data covers
Coverage follows the registers themselves: every postcode in England and Wales with registered sales, and the EPC register for floor areas.
Sold prices are the recorded transaction price at the Land Registry — not an asking price and not a portal estimate.
The sold-price feed carries no internal floor area, so where no EPC record exists the seller supplies the size themselves. And where the provider cannot value an address at all, the widget says the range is only a general indication and drops the confidence label to low, rather than passing it off as register-backed.
Coverage by nation and region
- England & Wales: covered by HM Land Registry sold prices.
- Scotland and Northern Ireland: not covered — their sales are recorded by Registers of Scotland and Land & Property Services, which we do not use.
© EuroGeographics for the administrative boundaries
FAQ
What agents ask before switching it on.
What does 'no lead, no charge' mean?
Exactly that. If the widget is live on your website for a full month and not one seller leaves their details, we refund that month, automatically. You will see it on your invoice before you have time to ask. We can promise this because it almost never happens: our agencies see leads within a week.
Where do the estimates come from?
Each estimate combines the homeowner's property details with recent Land Registry sold prices around the postcode and an independent UK valuation model. The widget shows a range with a confidence label, not a single misleading number.
Does the widget estimate rents too?
Yes. In the first step the visitor chooses selling or letting. Landlords get an honest rent estimate with the source named on the card — PropertyData's rental valuation for the property, checked against advertised lettings near the postcode — and every letting lead lands in your lead desk and CRM exactly like a sale lead.
Is this a formal valuation?
No. It's an indicative range designed to start the conversation. The natural next step, which the widget proposes, is a market appraisal by you.
Who owns the leads, and how is privacy handled?
Yes. Every valuation request captured on your website lands in your inbox only. This is your channel, not a shared portal - no reselling, no competing agents. Homeowners give explicit consent before seeing their result, you control the retention rules, and privacy export or deletion per lead is built in. Data processed under the UK GDPR, regulated by the Information Commissioner's Office (ICO).
Can I hide the widget for a while?
Yes. One button in the Widget Studio, Unpublish, hides the widget on your website within a few minutes without touching the script. Publish brings it back exactly as it was.
What happens when the data is thin?
The widget says so, instead of hiding it. Where the registers carry little nearby evidence the range widens and the confidence label drops; where the provider cannot value an address at all, the card says the range is only a general indication rather than passing it off as register-backed. You never receive a confident-looking number the data cannot support.
Start on your own website
Preview it on my websiteSee how many vendor leads your website can capture.
Set up the widget, match it to your brand, and publish when it feels right.