MCS Certified Installers Scraper - UK Heat Pump & Solar Installer Leads

Export the official MCS (Microgeneration Certification Scheme) register of UK renewables installers - the heat-pump, solar PV, battery, biomass and wind installers a homeowner must use to get the Boiler Upgrade Scheme grant (GBP 7,500 towards a heat pump) or be paid under the Smart Export Guarantee. MCS publishes every certified installer's contact details so consumers can check eligibility; this actor turns that register into a clean, deduplicated lead list.

One row = one MCS-certified installer, with the contact fields first: email, phone, website - then the MCS certification number and body, whether they are registered for the Boiler Upgrade Scheme, the technologies they are certified for, the regions they say they cover, their registered address and coordinates, and their MCS profile URL.

$13 per 1,000 installers ($0.013 each), no start fee. You pay only for installers delivered to your dataset.

Who buys this list

• Heat pump, solar, inverter and battery manufacturers and distributors recruiting installers into a network or trade-account programme - filter by technology, BUS-registered and region.
• Green-finance lenders and BNPL providers signing up installers as point-of-sale partners.
• Energy suppliers building approved-installer panels (heat pump, solar + battery, smart export).
• Renewables lead-gen agencies, software vendors (quoting, design, CRM) and trade publishers selling to installers.

What you get - measured on the whole register

Measured on a live run of the full register on 2026-09-23 (5,614 installers, the whole population, not a sample):

Field	Filled	Notes
email	100.0%	as published; MCS's own addresses (@mcscertified.com etc.) are never emitted
phone / phoneE164	98.7%	UK number canonicalised; 45% mobiles (phoneType)
website	54.8%	first real host from the published text; junk (emails, names, phone numbers typed into the website box) is dropped, the original kept in websiteAsPublished
all three (email + phone + website)	54.5%	3,061 installers
certificationNumber, certificationBody	100%	e.g. NAP-12995 / NAPIT, ELC-54471 / NICEIC - unique per row
boilerUpgradeScheme	100%	true on 1,663 installers
technologies	100%	Solar PV 4,310 · Battery Storage 2,775 · Air Source Heat Pump 2,166 · Ground/Water Source 544 · Exhaust Air 183 · Solar Heating 160 · Biomass 57 · Solar Assisted 21 · Ground Assisted 14 · Small Wind 11 · Micro CHP 3
technologySubType	40.2%	Air-To-Water (heat-pump installers that state it)
regions, nations, regionCount	95.0%	5% of installers tick no region on MCS - shipped as [], not guessed
addressLine1, postcode, latitude/longitude, fullAddress	100%
addressLine2 / addressLine3 / county	85.3% / 72.9% / 88.7%	county printed as "n/a" on 634 records ships null
profileUrl	100%	the installer's page on mcscertified.com
distanceKm / distanceMiles	with nearPostcode
country	0.04%	MCS prints "Unspecified" on 5,612 of 5,614 - shipped null; use nations / postcode

Input

Input	What it does
technologies	MCS's own technology filter: solar_pv, battery, ashp, gshp_wshp, eahp, sahp, all_heat_pumps, solar_thermal, biomass, wind_turbine, micro_chp. Several = the union (MCS lists installers matching more of them first).
requireAllTechnologies	Intersection instead: e.g. solar_pv + battery = installers certified for both.
regions	Regions the installer says they cover: england (any English region), scotland, wales, northern_ireland, nationwide (all 12), or an English region (london, south_west, yorkshire_humberside...).
boilerUpgradeSchemeOnly	Only installers registered for the Boiler Upgrade Scheme.
keyword	MCS's own search box (company-name words).
nearPostcode + radiusMiles	Nearest-first from a UK postcode or district (located via postcodes.io), stopping at the radius. Fills distanceKm and distanceMiles.
requirePhone, requireWebsite	Skip rows without a valid phone / a website. Skipped rows are never charged.
maxItems	Stop after this many delivered installers. Default 25; 0 = everything that matches.
concurrency	Listing pages fetched in parallel (default 4).
saveRawPages	Keep the first 40 raw JSON pages in the key-value store for audit.
proxyConfiguration	Off by default - MCS answers Apify's network directly.

Examples:

{ "technologies": ["ashp"], "boilerUpgradeSchemeOnly": true, "maxItems": 0 }

All 1,615 BUS-registered air-source heat pump installers.

{ "technologies": ["solar_pv", "battery"], "requireAllTechnologies": true, "nearPostcode": "BS1 4DJ", "radiusMiles": 10, "maxItems": 0 }

Solar + battery installers within 10 miles of central Bristol, nearest first (33 on 2026-09-23).

Example row (real, from the verified run)

{
  "installerId": "2898",
  "companyName": "Piping Hot Cookers Ltd",
  "email": "james.patmore@pipinghotcookers.com",
  "phone": "01327307130",
  "phoneE164": "+441327307130",
  "phoneType": "landline",
  "phoneAsPublished": "01327 307130",
  "website": "http://www.pipinghotstoves.com",
  "websiteDomain": "pipinghotstoves.com",
  "websiteAsPublished": "www.pipinghotstoves.com",
  "certificationNumber": "ELC-54471",
  "certificationBody": "NICEIC",
  "boilerUpgradeScheme": true,
  "technologies": ["Solar PV", "Battery Storage", "Air Source Heat Pump", "Ground/Water Source Heat Pump"],
  "technologySubType": "Air-To-Water",
  "heatPumpInstaller": true,
  "solarPvInstaller": true,
  "batteryInstaller": true,
  "regions": ["Eastern", "East Midlands", "London", "South East", "South West", "West Midlands", "Yorkshire & Humberside", "Wales"],
  "regionCount": 8,
  "nations": ["England", "Wales"],
  "coversAllRegions": false,
  "addressLine1": "Unit 23, Cottesbrooke Park",
  "addressLine2": "Heartlands Business Park",
  "addressLine3": "DAVENTRY",
  "county": "Northamptonshire",
  "postcode": "NN11 8YL",
  "postcodeDistrict": "NN11",
  "country": null,
  "fullAddress": "Unit 23, Cottesbrooke Park, Heartlands Business Park, DAVENTRY, Northamptonshire, NN11 8YL",
  "latitude": 52.2733,
  "longitude": -1.17558,
  "distanceKm": null,
  "distanceMiles": null,
  "profileSlug": "piping-hot-cookers-ltd",
  "profileUrl": "https://mcscertified.com/find-an-installer/piping-hot-cookers-ltd/",
  "scrapedAt": "2026-09-23T04:50:01.748Z"
}

Output fields

Field	Description
installerId	MCS's own installer id - the dedupe key; each installer is delivered and charged once per run
companyName	Installer company name
email	Contact email as published (MCS platform addresses removed)
phone, phoneE164, phoneType	UK number (01327307130), E.164 (+441327307130), landline / mobile / freephone / non-geographic
phoneAsPublished	The phone text exactly as MCS shows it - kept even when it is not a valid number
website, websiteDomain, websiteAsPublished	Usable website URL, its bare domain, and the original text
certificationNumber, certificationBody	MCS certification number and the body that certified the installer (NICEIC, NAPIT, APHC, OFTEC, The IAA, BAB, HETAS, Simply Certification)
boilerUpgradeScheme	Registered for the Boiler Upgrade Scheme (true/false)
technologies	Certified technologies, labelled exactly as MCS labels them
technologySubType	Heat-pump sub-type as published (Air-To-Water)
heatPumpInstaller, solarPvInstaller, batteryInstaller	Quick booleans for the three biggest buyer segments
regions, regionCount, nations, coversAllRegions	Regions covered (MCS labels), how many, which UK nations, and whether all 12
addressLine1..3, county, postcode, postcodeDistrict, fullAddress	Registered address
country	As published - almost always "Unspecified" on MCS, so null
latitude, longitude	Coordinates MCS stores for the installer
distanceKm, distanceMiles	Distance from nearPostcode (MCS returns kilometres; miles converted)
profileSlug, profileUrl	The installer's MCS profile page
scrapedAt	ISO timestamp of the run

A RUN_SUMMARY record in the key-value store states how many installers MCS says match your filters, how many unique ones came back, rows removed by each of your filters, retries, and delivered == charged.

Why this one

• Completeness is checked, not assumed. Every uncapped run compares the unique installers it collected to the total MCS states for the same filters and fails loudly if short (the full register: 5,614 of 5,614). A failed page is retried on a fresh connection and gets a repair pass; a page that answers "0 results" inside the stated page range is treated as a failure, never as the end of the list.
• Charged once per installer, keyed on MCS's id, only for rows actually delivered. Rows your filters remove are never charged. No start fee.
• Contacts cleaned without inventing anything: phones in E.164 with a type, junk in the website box dropped, MCS's own helpdesk addresses stripped, placeholders ("n/a", "Unspecified") shipped as null. Nothing is "repaired" - a 12-digit phone is left null with the original in phoneAsPublished.
• Postcode radius search (nearest-first with miles), AND-matching of technologies, server-side region and BUS filters, coversAllRegions / nations / regionCount for territory planning.
• Fast and light: the full register in about 75 seconds, no browser, no proxy.

Pricing

$0.013 per installer delivered (pay-per-event, installer-scraped). No start fee, no charge for filtered-out rows. An empty input returns the default 25 installers = $0.325. The full register (5,614) costs about $73.

Limits - read before buying

• Regions are what the installer ticked, not a measured service area; 5% tick none. radiusMiles measures from the installer's registered office.
• Website is published by only 55% of installers. Emails are on 100%; 45% of phones are mobiles.
• MCS ranks multi-technology results with installers matching more of your technologies first; order is otherwise by MCS id. Both orders were measured identical across repeated sweeps.

Source

MCS Find an Installer - https://mcscertified.com/find-an-installer/ - read through the same JSON endpoint the page's own search uses (admin-ajax.php?action=filter_installers, 30 installers per page). Data is as MCS publishes it at run time.