Company lists · Data refreshed September 2026

Top 25 Hvac ductwork and fittings based in the United Kingdom

Name: Hvac ductwork and fittings based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 168 companies tracked

RevenueBase identified 168 hvac ductwork and fittings headquartered in the United Kingdom as of September 2026 and tracks 1,055 professional contacts across them, including 314 with verified work emails. London is the largest hub.

This list covers hvac ductwork and fittings headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

168Companies

1,055Contacts tracked

314Verified emails

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The 25 largest hvac ductwork and fittings based in the United Kingdom

Ranked by team size

Top 25 of 168 hvac ductwork and fittings based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hvac ductwork and fittings: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Gilberts Blackpool LTD	Indirect evidence	Blackpool, United KingdomHQ checked Sep 20, 2026	201-500	77 contacts →
	Indirect evidence “Established in 1960, Gilberts is the UK’s leading designer and manufacturer of grilles, diffusers, louvres, smoke/fire dampers, and natural ventilation systems for the heating…” Source: RevenueBase Database · checked Sep 20, 2026
2	Imperial Ductwork Services LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	45 contacts →
	Partial evidence “From its foundation in 1997, Imperial Ductwork Services Ltd (IDSL) has grown into one of the industry’s leading companies in the Manufacture and Installation of Ductwork…” Source: RevenueBase Database · checked Sep 20, 2026
3	Has-Vent LTD	Partial evidence	Wolverhampton, United KingdomHQ checked Sep 20, 2026	51-200	44 contacts →
	Partial evidence “HAS-Vent Ltd is one of the leading 'supply only' manufacturers and distributors of circular and flat oval ductwork and accessories in the UK.” Source: RevenueBase Database · checked Sep 20, 2026
4	London Ductwork Services T A RDS	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	33 contacts →
	Partial evidence “RDS is one of the leading ductwork manufacturer and installation companies in the Capital that has expanded over the years gaining more than 40 years experience in the industry.” Source: RevenueBase Database · checked Sep 20, 2026
5	AIR Vent Technology	Indirect evidence	Andover, United KingdomHQ checked Sep 20, 2026	11-50	32 contacts →
	Indirect evidence “Since 1996, our high-quality products, commitment to UK manufacturing and outstanding customer service have put us at the forefront of the heating and ventilation industry.” Source: RevenueBase Database · checked Sep 20, 2026
6	Gardner & CO LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	30 contacts →
	Partial evidence “Gardner & Co leads the way with the very latest technology, whilst still upholding the finest traditions in the management and installation of sheet metal ductwork, specialising…” Source: RevenueBase Database · checked Sep 20, 2026
7	E Poppleton & SON LTD	Indirect evidence	Colwyn Bay, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Indirect evidence “Welcome to Poppleton, one of the UK’s leading providers of quality ventilation solutions.” Source: RevenueBase Database · checked Sep 20, 2026
8	Doby Verrolec	Strong evidence	Stanley, United KingdomHQ checked Sep 20, 2026	51-200	23 contacts →
	Strong evidence “As the UK market leader, and largest UK manufacturer of Ductwork Jointing Systems & Components, we supply four different flange systems suiting all HVAC needs and providing the…” Source: RevenueBase Database · checked Sep 20, 2026
9	Brankin Engineering LTD	Partial evidence	Newtownabbey, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Established in 1974, Brankin Engineering Ltd is a leading Ventilation Ductwork contractor operating throughout the United Kingdom and Ireland.” Source: RevenueBase Database · checked Sep 20, 2026
10	Airmatic	Partial evidence	Bury, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “North West Ductwork Contractor specialising in High Integrity Ductwork and Industrial Ventilation” Source: RevenueBase Database · checked Sep 20, 2026
11	B&r Installations LTD	Partial evidence	Sevenoaks, United KingdomHQ checked Sep 20, 2026	11-50	15 contacts →
	Partial evidence “Primarily B&R set out as a Ductwork supply and installation company, however we have expanded over recent years with the addition of value added services which compliment our core…” Source: RevenueBase Database · checked Sep 20, 2026
12	Krantz Limited	Indirect evidence	Rochester, United KingdomHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “Krantz Limited provides premium high-quality air distribution and heating and cooling systems for both commercial and industrial sectors.” Source: RevenueBase Database · checked Sep 20, 2026
13	Scott Heating, Ventilation & AIR Conditioning LTD	Partial evidence	Sawtry, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “Scott Heating & Ventilation/Air Conditioning Ltd have vast experience in the design, manufacture and installation of full HVAC systems for all Commercial buildings.” Source: RevenueBase Database · checked Sep 20, 2026
14	ASM Engineering Limited	Indirect evidence	Hitchin, United KingdomHQ checked Sep 20, 2026	51-200	11 contacts →
	Indirect evidence “We are equipped with state of the art digital and computerised technology throughout the company, from 3D CAD drawings through to the manufacturing process.” Source: RevenueBase Database · checked Sep 20, 2026
15	Ecoduct LTD	Strong evidence	Blackpool, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Strong evidence “EcoDuct is an innovative, high-performance non-metallic pre-insulated HVAC ductwork system that saves energy, cuts installation time and costs, reduces environmental impact and…” Source: RevenueBase Database · checked Sep 20, 2026
16	Mechanical AIR Supplies LTD	Indirect evidence	Leatherhead, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “Established in 1992, Mechanical Air Supplies has gained an enviable reputation for value, reliability and quality.” Source: RevenueBase Database · checked Sep 20, 2026
17	Firmac LTD	Indirect evidence	Scarborough, United KingdomHQ checked Sep 20, 2026	51-200	11 contacts →
	Indirect evidence “For almost 30 years, Firmac Ltd.” Source: RevenueBase Database · checked Sep 20, 2026
18	SV Installations	Indirect evidence	Kingston Upon Hull, United KingdomHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “At SV Installations (SVI), we design, manufacture and install heating, ventilation and air-conditioning systems of the highest quality across both the public and private sectors…” Source: RevenueBase Database · checked Sep 20, 2026
19	Pure Companies	Indirect evidence	Horwich, United KingdomHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Who we are.” Source: RevenueBase Database · checked Sep 20, 2026
20	Ductmann	Partial evidence	Bilston, United KingdomHQ checked Sep 20, 2026	51-200	9 contacts →
	Partial evidence “We manufacture 'supply only' spiral tube, rectangular ductwork and flat oval ductwork.” Source: RevenueBase Database · checked Sep 20, 2026
21	Southern Ductwork Manufacture LTD	Partial evidence	Bracknell, United KingdomHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “Ductwork made to specification Fast turnaround Collection any time of day Centrally located between M4, M3 & M25 Daily deliveries to London South East and South West All of UK A…” Source: RevenueBase Database · checked Sep 20, 2026
22	DRAVO	Indirect evidence	Northampton, United KingdomHQ checked Sep 20, 2026	51-200	8 contacts →
	Indirect evidence “Dravo is a construction company based out of Rhosili Road, Brackmills Industrial Estate, Northampton, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026
23	KH Mechanical Services Limited	Partial evidence	Farnborough, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “KH Mechanical Services Ltd is a Heating and Ventilation company, with an in-house manufacturing ductwork facility.” Source: RevenueBase Database · checked Sep 20, 2026
24	CAE Ventilation Services Northern	Partial evidence	Birkenhead, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “CAE Ventilation Services Northern are Ventilation and Ductwork specialists providing services for a wide spectrum of clients from household names right down to small batch one of…” Source: RevenueBase Database · checked Sep 20, 2026
25	Ductwork Design And Installation LTD	Partial evidence	Radcliffe, United KingdomHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “DUCTWORK DESIGN AND INSTALLATION LIMITED is a mechanical or industrial engineering company based out of Stoneclough Rd, Radcliffe, United Kingdom.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hvac ductwork and fittings. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names hvac ductwork and fittings.
Partial evidence: Its own public description names part of hvac ductwork and fittings, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hvac ductwork and fittings. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 168 hvac ductwork and fittings based in the United Kingdom

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Hvac ductwork and fittings based in the United Kingdom at a glance

As of Sep 20, 2026

29.8%Verified-email coverage

6.3Average contacts per company

11-50Median size (employees)

11.3%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 168 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hvac ductwork and fittings, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “hvac ductwork and fittings”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hvac ductwork and fittings), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among hvac ductwork and fittings, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 314 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hvac ductwork and fittings, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many hvac ductwork and fittings are there based in the United Kingdom?

RevenueBase identified 168 hvac ductwork and fittings headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Gilberts Blackpool LTD, headquartered in Blackpool, tops this list with the largest team on record.

Which city has the most hvac ductwork and fittings?

London leads with 19 headquartered companies, followed by Leicester (5) and Manchester (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 314 verified decision-maker contacts tracked across these 168 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.