Company lists · Data refreshed September 2026

Top 25 Weatherproofing and sealing companies based in the United Kingdom

Name: Weatherproofing and sealing companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 333 companies tracked

RevenueBase identified 333 weatherproofing and sealing companies headquartered in the United Kingdom as of September 2026 and tracks 2,176 professional contacts across them, including 807 with verified work emails. London is the largest hub.

This list covers weatherproofing and sealing companies 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 29, 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 29, 2026 86% judged on-target in blind review

333Companies

2,176Contacts tracked

807Verified emails

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The 25 largest weatherproofing and sealing companies based in the United Kingdom

Ranked by team size

Top 25 of 333 weatherproofing and sealing companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to weatherproofing and sealing companies: 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	TOR Coatings	Indirect evidence	Gateshead, United KingdomHQ checked Sep 29, 2026	201-500	100 contacts →
	Indirect evidence “Established in 1975 and with over 40 years’ experience in the buildings coatings industry, Tor Coatings are true specialists in our field.” Source: RevenueBase Database · checked Sep 29, 2026
2	Klinger United Kingdom	Partial evidence	Bradford, United KingdomHQ checked Sep 29, 2026	51-200	92 contacts →
	Partial evidence “KLINGER is the world's leading sealing solutions and services provider.” Source: RevenueBase Database · checked Sep 29, 2026
3	Soprema UK	Indirect evidence	Witham, United KingdomHQ checked Sep 29, 2026	5,001-10,000	82 contacts →
	Indirect evidence “SOPREMA has been an independent family group since it was founded in 1908.” Source: RevenueBase Database · checked Sep 29, 2026
4	BMI Icopal	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 29, 2026	1,001-5,000	76 contacts →
	Indirect evidence “Specify, manufacture and supply industry-leading waterproofing systems and building protection for over 160 years.” Source: RevenueBase Database · checked Sep 29, 2026
5	NCC	Indirect evidence	Chorley, United KingdomHQ checked Sep 29, 2026	n/a	75 contacts →
	Indirect evidence “NCC - Nationwide suppliers of resin flooring, chemically resistant coatings, bund lining systems, concrete repair, waterproofing and movement joints.” Source: RevenueBase Database · checked Sep 29, 2026
6	Obex UK	Partial evidence	Worcester, United KingdomHQ checked Sep 29, 2026	51-200	62 contacts →
	Partial evidence “OBEX Protection Ltd is a global leader in the supply of innovative sealing and protection solutions for commercial glazing and façades.” Source: RevenueBase Database · checked Sep 29, 2026
7	Garland UK	Indirect evidence	Bristol, United KingdomHQ checked Sep 29, 2026	51-200	50 contacts →
	Indirect evidence “Garland UK provide high-performance waterproofing systems to commercial, residential, industrial and public sector assets.” Source: RevenueBase Database · checked Sep 29, 2026
8	Triflex UK LTD	Indirect evidence	Stone, United KingdomHQ checked Sep 29, 2026	11-50	44 contacts →
	Indirect evidence “Triflex is the leading European specialist in cold liquid applied resins.” Source: RevenueBase Database · checked Sep 29, 2026
9	Roofline Group	Indirect evidence	Waterlooville, United KingdomHQ checked Sep 29, 2026	51-200	44 contacts →
	Indirect evidence “Construction News Specialist Contractor of the Year 2026.” Source: RevenueBase Database · checked Sep 29, 2026
10	Homelogic	Indirect evidence	Southampton, United KingdomHQ checked Sep 29, 2026	51-200	38 contacts →
	Indirect evidence “Homelogic®, based in Southampton, Hampshire, are an innovative, forward-thinking company dedicated to bringing eco-friendly, cost effective energy saving solutions to the homes…” Source: RevenueBase Database · checked Sep 29, 2026
11	Proteus Waterproofing	Indirect evidence	Rayleigh, United KingdomHQ checked Sep 29, 2026	11-50	37 contacts →
	Indirect evidence “Proteus Waterproofing is the one-stop-solution provider for a total waterproofing and protection package.” Source: RevenueBase Database · checked Sep 29, 2026
12	Effisus	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “Effisus is a leading provider of innovative solutions that seamlessly blend Efficiency and Sustainability, delivering integrated systems with superior quality and high added value.” Source: RevenueBase Database · checked Sep 29, 2026
13	Premcrete LTD	Indirect evidence	Andover, United KingdomHQ checked Sep 29, 2026	11-50	36 contacts →
	Indirect evidence “Premcrete is the leading British manufacturer of pre-applied waterproofing, ground heave mitigation and gas protection systems.” Source: RevenueBase Database · checked Sep 29, 2026
14	Cemplas Waterproofing & Concrete Repairs LTD	Indirect evidence	Coulsdon, United KingdomHQ checked Sep 29, 2026	11-50	35 contacts →
	Indirect evidence “CEMPLAS was established in 1969 and is a leading specialist contractor with extensive expertise in repairing and protecting a broad range of structure types, be they new or…” Source: RevenueBase Database · checked Sep 29, 2026
15	Wykamol-Mapei Waterproofing Solutions	Indirect evidence	Burnley, United KingdomHQ checked Sep 29, 2026	51-200	32 contacts →
	Indirect evidence “Mapei, a world leader in construction chemicals, has strengthened its presence in the UK by acquiring the local manufacturer Wykamol through Mapei UK to expand its waterproofing…” Source: RevenueBase Database · checked Sep 29, 2026
16	Newton Waterproofing Systems	Indirect evidence	Tonbridge, United KingdomHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect evidence “Welcome to Newton.” Source: RevenueBase Database · checked Sep 29, 2026
17	Hodgson Sealants	Indirect evidence	Beverley, United KingdomHQ checked Sep 29, 2026	51-200	28 contacts →
	Indirect evidence “Who we are Hodgson Sealants are the largest independent sealant manufacturer in the UK.” Source: RevenueBase Database · checked Sep 29, 2026
18	Structurecare	Indirect evidence	Sheffield, United KingdomHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “A specialist installation, repair and maintenance contractor, providing a range of market-leading construction products and services covering the infrastructure, industrial…” Source: RevenueBase Database · checked Sep 29, 2026
19	Pudlo Products Limited	Indirect evidence	Cambridgeshire, United KingdomHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “PUDLO offers waterproofing and gasproofing solutions that stand the test of time.” Source: RevenueBase Database · checked Sep 29, 2026
20	Roxtec UK & Ireland	Partial evidence	Bury, United KingdomHQ checked Sep 29, 2026	11-50	26 contacts →
	Partial evidence “We provide cable and pipe sealing solutions for a wide range of applications within many different industries.” Source: RevenueBase Database · checked Sep 29, 2026
21	HD Sharman	Indirect evidence	Chapel-en-le-frith, United KingdomHQ checked Sep 29, 2026	51-200	25 contacts →
	Indirect evidence “Sharmans is committed to supplying best-in-class gutter and roof refurbishment systems backed by a comprehensive range of guarantees and customer support options.” Source: RevenueBase Database · checked Sep 29, 2026
22	Stirling Lloyd Polychem LTD	Indirect evidence	Cheshire, United KingdomHQ checked Sep 29, 2026	51-200	23 contacts →
	Indirect evidence “Established over 40 years ago, we pioneered the use of cold, spray applied waterproofing systems.” Source: RevenueBase Database · checked Sep 29, 2026
23	Westwood Liquid Technologies Limited	Indirect evidence	Poole, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “WestWood Liquid Technologies Limited is the UK division of WestWood Kunststofftechnik GmbH-an industry-leading, global manufacturer of premium PMMA resins tailored for the…” Source: RevenueBase Database · checked Sep 29, 2026
24	Sealprem	Indirect evidence	Scunthorpe, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Premier Sealant Systems Ltd.” Source: RevenueBase Database · checked Sep 29, 2026
25	Delta Membrane Systems LTD	Indirect evidence	North Weald, United KingdomHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Delta Membrane Systems Limited provides a full range of waterproofing and damp proofing solutions for architects, specifiers, developers, contractors and homeowners on new…” Source: RevenueBase Database · checked Sep 29, 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: weatherproofing and sealing companies. 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 weatherproofing and sealing companies.
Partial evidence: Its own public description names part of weatherproofing and sealing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name weatherproofing and sealing companies. 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 333 weatherproofing and sealing companies based in the United Kingdom

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Weatherproofing and sealing companies based in the United Kingdom at a glance

As of Sep 29, 2026

37.1%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

12.6%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

174

11-50

123

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 333 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 weatherproofing and sealing companies, 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 “weatherproofing and sealing companies”. 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 weatherproofing and sealing companies), 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 weatherproofing and sealing companies, 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, 807 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 29, 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.

Weatherproofing and sealing companies by metro

Weatherproofing and sealing companies in London42

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 weatherproofing and sealing companies, 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 weatherproofing and sealing companies are there based in the United Kingdom?

RevenueBase identified 333 weatherproofing and sealing companies 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?

TOR Coatings, headquartered in Gateshead, tops this list with the largest team on record.

Which city has the most weatherproofing and sealing companies?

London leads with 42 headquartered companies, followed by Glasgow (5) and Ashford (4).

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 807 verified decision-maker contacts tracked across these 333 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 29, 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.