Where can I buy a list of UK builders with the owner's name and phone number?
You can buy it here as an Excel or CSV file. We hold 14,263 builder records, every one with a phone number and a postal address, and 12,888 of them name a person, usually the owner or a director. 4,069 records (about 29%) carry that person's own email. A good share of small builders trade as sole traders, who can't be emailed cold, so plan around the phone and post, and ask for a free count split by employee size before you order.
What you get when you buy builders data
One record is one building firm at one trading address, often the owner's home or yard rather than an office. This is how many you can reach by each route.
| Channel | Records with it | Share | Coverage | What it means for builders |
|---|---|---|---|---|
| Post | 14,263 | 100% | Strong | All 14,263 records have a full postal address. Many are home addresses used as the business base, so a letter is often opened by the owner at the kitchen table in the evening, after the working day. |
| Phone | 14,263 | 100% | Strong | Every record has a number. For a small firm it is often the owner's mobile, answered on site between jobs. A larger builder is more likely to give an office line staffed during the day. |
| Named contact | 12,888 | 90% | Strong | 12,888 records name someone. In most building firms that is the owner or a director, the person who prices the jobs and pays the suppliers. |
| Email | 4,069 | 29% | Usable, with care | 4,069 records carry the named person's own email, about 29% of the list. That supports an email follow-up but not an email-only campaign, and some of those addresses belong to sole traders you need consent to email. |
| General email | 1,628 | 11% | Usable, with care | A further 1,628 records hold a general inbox, mostly the address customers use to ask for quotes. Your message lands among enquiries from homeowners, so make clear in the first line that it is a trade offer. |
Records with each contact channel (14,263 builders in all)
This list is firms that call themselves builders. Records sit in one main category, so a builder that also does roofing or loft conversions may be filed here or under that trade, depending on how it describes itself. Larger firms that present themselves as contractors are held as building construction contractors (4,856 records), and property maintenance firms (4,643) are kept apart too. If your offer suits contractors as well, ask for both categories in one count, and check the sample for firms that look the same.
Size is the real split. A sole trader doing extensions and a builder with 30 staff share a category but not a buying process. The employee size band on each record is how you tell them apart, which is why the size selection matters more here than in most trades.
Who the named contacts are
In a small builder the named contact is almost always the owner. They price the work, order the materials, run the site and deal with the paperwork at night. In a builder with its own office the name may be a director, with a contracts manager or office manager handling day-to-day buying and an estimator pricing jobs. Bigger spend, such as vans, plant or software, still goes to a director.
- Owner
- Proprietor
- Director
- Managing director
- Contracts manager
- Office manager
- Estimator
Owners are hard to catch in working hours. If you plan to call, expect more joy early in the morning before work starts or late in the afternoon, and use the 12 months of your licence to book call-backs rather than ringing the same owner again and again in one week. On the larger firms, calling the office in the day works better, which is another reason to split your list by size before you start.
Selections worth paying for with builders
These are the selections we can make. The verdicts are for builders, where the main question is the size of firm and every record already has a phone number.
| Select by | For builders | Why |
|---|---|---|
| Number of employees | Worth it | The most useful cut for builders. It separates owner-run firms from builders with staff and an office. Ask for your count broken down by size band before you choose. |
| Postcode area or radius | Worth it | Worth it if you deliver, hire out kit or send someone round. Builders buy from suppliers who can reach the site quickly, so match the radius to the area you can serve in a day. |
| Region or county | Worth it | Handy for a rep with a fixed patch, or for a trial mailing in one area before you roll out across the country. |
| Type of business | Sometimes | Builders are one category, so this only matters if you want to add building construction contractors, property maintenance firms or other trades to the same order. |
| Records with an email only | Sometimes | Takes you to 4,069 records. Pay for it only if email is your main channel and you have a plan for checking which firms are sole traders first. |
| Turnover | Rarely needed | Turnover is a thinner guide than staff numbers for small builders, whose takings swing from job to job. Use employee size instead unless your product is priced on turnover. |
| Records with a phone number only | Rarely needed | Every builder record we hold already has a number, so this cut changes nothing. Leave it off your quote. |
How much does builders data cost?
Every record in an order is charged at the rate for the size of the whole order.
14,263 records14,263 ÷ 1,000 × £220
Price excluding VAT£3,137.86
4,069 records4,069 ÷ 1,000 × £270
Price excluding VAT£1,098.63
19,119 records19,119 ÷ 1,000 × £220
Price excluding VAT£4,206.18
600 records600 ÷ 1,000 × £295
Below the minimum order, so charged at£300
Price excluding VAT£300
| Records in the order | Price per 1,000 |
|---|---|
| Fewer than 2,500 | £295 |
| 2,500 to 4,999 | £270 |
| 5,000 to 9,999 | £245 |
| 10,000 to 19,999 | £220 |
| 20,000 to 49,999 | £195 |
| 50,000 or more | £170 |
Price per 1,000 records by order size (excluding VAT)
The whole builders list and the named-contact records alone both fall in the £220 band, so the records without a named person cost no more per record. If you will post or call, take the whole list. A small local radius pays the £300 minimum, which at the top rate covers around a thousand records; if your area holds fewer builders than that, widen it to the next town you would still serve.
Licence, accuracy, screening and delivery
The licence runs for 12 months, which fits builders well: an owner on a long job in spring may be pricing new work, and buying, by late summer. You can go back to them without buying the list again. Phone screening covers 28 days from delivery, so if your calling round stretches past that, as it easily does when owners are hard to reach, screen again before the later calls. Small building firms start up and stop often, so check a few sample records against the firms' own websites or vans in your area before you order.
The full terms in plain English are on our buying terms page.
Using builders data legally
Legal form of UK workplaces in this sector (ONS 2026)
- Companies85%
- Sole traders13%
- Partnerships2%
- Charities, non-profits and mutualsunder 1%
- Public sector (central government, local authority, public corporation)under 1%
| Legal form (ONS) | UK workplaces | Share | Marketing email (PECR) | Sales calls |
|---|---|---|---|---|
| Companies | 54,135 | 85% | Allowed with your identity and an opt-out | Check the CTPS |
| Sole traders | 8,135 | 13% | Prior consent needed | Check the TPS |
| Partnerships | 1,330 | 2% | Prior consent needed (LLPs and Scottish partnerships: as companies) | Check the TPS (LLPs: the CTPS) |
| Charities, non-profits and mutuals | 85 | under 1% | Allowed with your identity and an opt-out | Check the CTPS |
| Public sector (central government, local authority, public corporation) | 120 | under 1% | Allowed with your identity and an opt-out | Check the CTPS |
| All UK workplaces in SIC 41202 | 63,805 | 100% |
For SIC 41202, the ONS 2026 counts show about 85% of builder workplaces belong to companies, with sole traders at about 13% and partnerships about 2%. Those figures only cover businesses registered for VAT or PAYE, so the smallest builders, who work alone below the VAT threshold, are largely missing from them. The real share of sole traders among the firms you can buy is likely to be higher, and it is highest in the smallest size band.
That matters for email. The ICO says sole traders and some partnerships are treated as individuals, so you can only email or text them with their specific consent, and the existing-customer exception does not cover contacts from bought-in lists. Legal form is not a selection we offer, so check a builder on Companies House before you email it. Calls are different: you can call a builder whose number is not on the TPS or CTPS and who hasn't told you to stop, and the ICO notes that sole traders register with the TPS while companies use the CTPS. That is why the list is screened against both.
Before you buy builders data: questions to settle
- Which size of builder buys from you? Ask for the count split by employee band and drop the bands you can't serve.
- Do you want contractors too? Building construction contractors are a separate category, counted only if you ask.
- Will you call, write or email first? With about 29% of records holding a named email, size the order for post and phone.
- Who will check legal form? Agree how sole traders are spotted before any email or text goes out.
- When will you call? Owners on site answer early or late; plan the calling hours and keep notes of call-backs.
- Will your calls finish within 28 days? If not, plan to screen the numbers again before the later rounds.
- Does the sample look like your customers? Look at the names and size bands in the sample before you pay.
Questions about buying builders data
Where can I buy a list of UK builders with the owner's name and phone number?
You can buy it here as an Excel or CSV file. We hold 14,263 builder records, every one with a phone number and a postal address, and 12,888 of them name a person, usually the owner or a director. 4,069 records (about 29%) carry that person's own email. A good share of small builders trade as sole traders, who can't be emailed cold, so plan around the phone and post, and ask for a free count split by employee size before you order.
Can I buy builders data for small builders only, or larger firms only?
Yes. Each record carries an employee size band, so you can take only owner-run firms or only builders with staff. Ask for the free count split by size band first, so you can see how many fall either side before you choose.
Does a builders list include main contractors?
Not by default. Firms that present themselves as contractors are held as building construction contractors, with 4,856 records. You can add them to the same order if you sell to both.
Can I email the builders on the list?
Some of them. 4,069 of the 14,263 records have a named email. You can email a builder that trades as a limited company, but sole traders and some partnerships need to have given consent first. Check the firm on Companies House, or use post and phone and invite the owner to opt in.
What is the best time to call builders?
Small builders are usually on site, so early in the morning or late in the afternoon tends to suit them better than midday. Larger firms with an office can be called in normal hours. Keep the first call short and book a call-back.
How much does builders data cost?
All 14,263 records: £3,137.86 excluding VAT, at £220 per 1,000. The 4,069 with a named email: £1,098.63. Orders under 2,500 records are £295 per 1,000, and the minimum order is £300 plus VAT. Your quote gives the exact figure.