How Do I Check My Home Value Without Agents Calling Me Afterwards?

You typed your address into a free home value tool on Sunday evening; by Monday lunchtime three agents had called and two had texted. Nothing malfunctioned. The site did what its fine print said, and the figure on the screen was the bait, not the product. This page explains why the phone rings, what the callers are allowed to do, how to make them stop, and how to get a number for your home that nobody else sees. For what you keep once the house is sold, see the pillar on selling costs and net proceeds.

Why does my phone ring the moment I use a free home value tool?

Because on most free estimators you are not the customer. The customer is the agent, broker or lender who pays for your details, and the estimate is what persuades you to hand them over.

The United States Court of Appeals for the Eleventh Circuit set out the mechanics in January 2025. Consumers and their contact information are the "leads", the companies collecting them are "lead generators", and the leads are sold to the merchants who sell the product or to "lead aggregators" that pool leads from many sites for resale¹. On a comparison or estimate website the visitor enters information, consents to be contacted by the site's "partners and affiliates", an algorithm matches them with companies, and the site sells the information to those companies so that they can call or text with offers¹.

A homeowner asking "what is my house worth?" is an unusually valuable lead, because the question usually precedes a sale: NAR's 2025 Profile of Home Buyers and Sellers counted a record 91 percent of sellers who sold with an agent². Three kinds of site produce the pattern: portal estimators that earn from the "connect with a local agent" box beside the figure, lead-generation calculators that exist only to be sold, often to several buyers at once, and agent valuation forms on a brokerage's own page, where the caller is the person who built the page.

Was my number sold? What the box you ticked actually said

Usually yes, in the plain sense that money changed hands for your details, and usually lawfully, because you agreed. The sentence near the submit button tends to read "by clicking you agree that our partners may contact you by phone, text or email, including by automated means". It does two legal jobs.

First, it supplies the "prior express consent" that the Telephone Consumer Protection Act (TCPA) requires before anyone may call your cell phone with an automatic telephone dialing system or a prerecorded voice³; the FCC reads "call" to include text messages, as the Eleventh Circuit noted¹. Second, it creates what the Federal Trade Commission's Telemarketing Sales Rule calls an established business relationship: an inquiry or application about a seller's goods or services allows that seller to make live telemarketing calls to you for the following 90 days⁴.

How long are they allowed to keep calling?

Longer than most people expect, but not forever, and not however they like.

Each seller needs its own basis, so one form can produce several lawful callers: the 90-day inquiry window covers the site you actually asked⁴, while the companies that bought the lead rely instead on the written permission you gave beside the submit button, which the rule recognizes when it authorizes calls from a named party, carries the number that may be called and bears your signature⁵. Every one of those permissions ends the moment you tell that caller to stop, because calling a person who has stated that they do not wish to receive calls made by or on behalf of that seller is itself a violation⁵. This is general information, not legal or tax advice.

How to stop the calls that have already started

1. Tell each caller to stop, in those words. "Put this number on your internal do-not-call list" triggers the entity-specific rule at once⁵. Ask for the company name and for the seller the caller represents, which is often a lead buyer you have never heard of.
2. Register at donotcall.gov. Registration is free for home and mobile numbers, and most telemarketers should not call once the number has been on the registry for 31 days⁶. It does not stop charities, political groups, debt collectors or surveys⁶, and it does not override the inquiry relationship you created on the form⁵.
3. Report the calls that continue. After the 31 days you can report unwanted sales calls on the same site, and calls that play a recorded message can be reported whether or not your number is registered⁶.
4. Withdraw the consent at the source. Email the site where you filled in the form, revoke any consent to be contacted, and ask it to notify every partner it sold the lead to. Keep the email.
5. Use your state privacy law if you have one. California residents can tell a business to stop selling or sharing their personal information and to delete it; a business that sells personal information must show a "Do Not Sell or Share My Personal Information" link and cannot require an account to make the request⁷. Elsewhere, your state attorney general's website will say whether a comparable law applies.
6. Keep a log. Date, time, number, company, what you said. Under the TCPA you can sue for $500 per autodialed or prerecorded call made without consent, or after more than one call in 12 months that violates the do-not-call rules, with up to three times that for willful violations³.

What your phone number is worth to the agent (an example)

The persistence makes sense from the caller's side. Take a hypothetical example anchored to the median price of an existing home in the United States, $429,100 in August 2026 according to the National Association of REALTORS®⁸; the fee percentage and the conversion rate are illustrative assumptions, not quotes.

Twenty calls, nineteen refusals, one listing worth about $10,700 at the assumed rate: the twentieth call pays for all the others several times over, which is why the nineteenth refusal deters nobody. The calls are not personal, and politeness does not end them; only "do not call this number again", said to the right company, does⁵. The fee itself, and whether you need an agent at all, is covered in the guide to selling with or without an agent.

Where the figure can come from instead

No valuation method needs your number, so the question is only which of the routes that never ask for one suits you.

Three cost nothing: your county's assessor and recorder pages for the parcel, the Federal Housing Finance Agency's House Price Calculator, which grows a past purchase price by the average appreciation of all homes in the state or metro area and which FHFA says does not project the value of any particular house⁹, and the closed sales of similar homes that you look up yourself. Those three stand side by side, with what each one hands back and why the phone field exists at all, in the page on why the estimate stays hidden until you give a phone number.

The fourth route is the paid one, and it is where the answer to the title question sits. A report you buy has one customer, the person who ordered it, so there is no lead to resell and no reason for a phone field: an email address carries the PDF, and nothing in the flow produces a caller. The free preview shows the layout for your address before you pay, and the trade is a few dollars instead of a consent sentence and the calls that follow it.

What to check before you type your address into any valuation site

A thirty-second inspection tells you whether the figure or your number is the product.

• Is there a phone field, and is it required? A valuation needs an address, a size, a condition and a year, not your phone number. A required phone field is the clearest sign of what is being collected.
• Read the sentence beside the button. "Partners", "affiliates", "automated technology" and "prerecorded" mark the consent the court described, and the reason the calls that follow will be lawful¹³.
• Search the privacy policy for "sell" and "share". A policy that admits selling or sharing personal information with third parties is telling you what happens next; California residents will find the opt-out link there, because the law requires it⁷.
• Is the figure shown before or after you hand over contact details? A site that shows the number first is selling a service; a site that asks first is selling you. What the number itself is worth is covered in the guide to how accurate online home value estimators are.

Where CheckValue sits: a report you buy, not a lead someone sells

CheckValue is on the paid side of that table, and the business model is the whole answer to the question in the title: the person who orders the report is the customer, nobody else pays for anything, so there is nothing to sell on. Three consequences follow:

• No phone number, at any step. The flow asks for the address, a few facts about the home and optionally your photos; the free on-screen preview comes before payment, and the finished report arrives on screen and as a PDF you can share by link.
• No agent hears about the request. The address and your inputs are used to calculate the report; they are not passed to agents, brokers or lenders, and nobody from CheckValue calls you.
• The number comes with its evidence. The point value and range sit beside the comparable sales, the official price index for the area, the market tempo and an estimate of selling costs and net proceeds, each with a numbered source: the material you would otherwise be offered in exchange for a listing appointment.

What it is not: a licensed appraisal, and no substitute for one where a lender, a court or a tax authority requires it. The page on how an AI valuation works describes the method; the pricing page lists the single report and the packs. If you do decide to sell, the pricing strategy guide covers setting a list price from the comparables you now hold, and the agent you eventually choose will be one you called.

This article is general information, not legal, tax or investment advice. Figures and rules carry the year they were published; check the cited source for the current version.

Christian Eckmair

Co-founder, CheckValue · Managing director, CBDNOL GmbH · More than 20 years in real estate in Tenerife and Austria · Reviewed by Josef Eckmair MBA

Christian Eckmair is co-founder of CheckValue and managing director of CBDNOL GmbH (Ansfelden, Austria). He has worked in real estate for more than 20 years in Tenerife and Austria – buying, renovating, letting and selling residential property – and writes about home values, buying checks and ownership records.

Articles by Christian Eckmair →

Follow: RSS · Feedly · Add as a preferred source on Google