IMI to acquire Heatmiser for £110m

By Tim Aldred

08 Nov 2022

heatmiser.jpeg

Heatmiser, which ranked as the red rose county's fourth most profitable SME in Lancashire Business View's latest Hot 100, is set to be acquired by IMI plc for at least £110m.

Blackburn-based Heatmiser was founded in 1968 developing thermostatic control products for residential buildings and has enjoyed success in recent years by pioneering smart thermostat technology.

In its most recent accounts, the company generated £7.8m pre-tax profit on revenues of £18.1m. It employed a workforce of 100. In the financial year to December 2022, Heatmiser is expected to increase revenues to around £22.5m.

The company was founded by Gordon Kay and remained within the family with Martyn and Sarah Kay at the helm, who will remain in the business.

The proposed initial fee for the sale is £110m, with up to a further £8m based on Heatmiser’s future financial performance. Heatmiser will become part of IMI Hydronic Engineering.

IMI is a Birmingham-based specialist engineering company which designs, manufactures and services highly products that control the precise movement of fluids.

IMI employs around 10,000 people, has manufacturing facilities in 19 countries and operates a global service network. 

Roy Twite, chief executive of IMI, said: "This is an important, strategic entry point to the rapidly growing connected controls market, that will accelerate our organic growth across IMI Hydronic.

"There has never been more urgency to deliver energy efficiency and comfort in buildings, and Heatmiser is a leader in this space. I want to personally thank the Kay family for their commitment to the transaction and welcome the entire Heatmiser team into IMI.”

Martyn Kay and Sarah Kay said: "We feel very proud of the business we have created at Heatmiser and we want to say a big thank you to our team for helping us achieve a market leading position.

"By listening to our customers and reacting to market change, we have become one of the UK’s leading HVAC control brands and we are excited about joining the IMI family and the opportunities this will bring. We are particularly excited about the growth potential of the business in new territories and our joint vision of creating a better more energy efficient world."

Enjoyed this? Read more from Tim Aldred

Latest news

1

Preston appoint new director of environment and property Sarah Robinson

Preston appoint new director of environment and property

27 Mar 2026

2

Public consultation for proposed merger of Blackpool and The Fylde College and Furness College Blackpool and the Fylde College

Public consultation for proposed merger of Blackpool and The Fylde College and Furness College

26 Mar 2026

3

Preston Council invests £1m in plans NW Mutual Bank NW Mutual Bank

Preston Council invests £1m in plans NW Mutual Bank

26 Mar 2026

4

BAE boost as UK signs Typhoon support contract with Turkey Typhoon aircraft new

BAE boost as UK signs Typhoon support contract with Turkey

26 Mar 2026

5

Burnley gets £4.8m heritage boost for town centre regeneration Burnley secures £4.8 million heritage boost for town centre regeneration

Burnley gets £4.8m heritage boost for town centre regeneration

25 Mar 2026

Background image for hub sign up block

LBV Hub

Leverage Lancashire Business View platforms

Post your news
Post your events
Post your offers
Build your network
Improve your SEO
Gain coverage in the magazine
Sign-up
Events
AI & Cybersecurity Summit
AI and Cybersecurity Logo
Summit
28 Apr 2026

AI & Cybersecurity Summit

Dunkenhalgh House , Blackburn Road, Clayton Le Moors, BB5 5JP

08:30 - 11:00

Sub36 Networking - Outdoor Elements
Sub36 Outdoor Elements Logo1920x1008
Networking
29 Apr 2026

Sub36 Networking - Outdoor Elements

Outdoor Elements, Pump House Dean Wood, Trapp Lane, Burnley, BB12 7JD

09:00 - 11:00

LBV Magazine Networking Events - SAVE THE DATES
Jan/ Feb Networking Event - Talking
Networking
14 May 2026

LBV Magazine Networking Events - SAVE THE DATES

Lancashire

08:30 - 10:30

RISE - a tailored 6 month leadership programme for women across the North West
WENDY BOWERS RISE Illustrstion copy.jpg.jpg
LBV Hub Seminars
15 Apr 2026 - 15 Apr 2026

RISE - a tailored 6 month leadership programme for women across the North West

East Lancashire Chamber of Commerce, Clayton le Moors, BB5 5JR

09:00 - 15:30

The Business Network Central and East Lancashire
LBV Header (31).png.png
LBV Hub Networking
16 Apr 2026 - 16 Apr 2026

The Business Network Central and East Lancashire

Mytton Fold, Blackburn, BB6 8AB

11:30 - 14:15

Sickness Absence: key actions for your business
Logo.jpg.jpg
LBV Hub Seminars
22 Apr 2026 - 22 Feb 2026

Sickness Absence: key actions for your business

The Longlands Hotel, Carnforth, LA6 1JH

08:00 - 10:00

Freelancer Meet-Up April
April Freelancer Instagram size.png.png
LBV Hub Networking
23 Apr 2026 - 23 Apr 2026

Freelancer Meet-Up April

Society1 Coworking Space, Preston, PR1 3LT

10:00 - 00:00

Vibe Coding: "Who owns what when no one wrote the code?"
April PTC Banner.png.png
LBV Hub Networking
28 Apr 2026 - 28 Apr 2026

Vibe Coding: "Who owns what when no one wrote the code?"

Society1 Coworking Space, Preston, PR1 3LT

18:00 - 19:30

Dazzle & Decadence
Dazzle & Decadence TryBooking Header.png.png
LBV Hub Fundraisers
30 Apr 2026

Dazzle & Decadence

Ainsworth Jewellers, 57-59 Darwen St, Blackburn, BB2 2BW

18:00 - 20:00

Blackburn Beer and Gin Festival 2026
Blackburn Beer and Gin Festival 2026
LBV Hub Social
01 May 2026

Blackburn Beer and Gin Festival 2026

BB1 8NB

17:00 - 23:00

Advertise with us

Reaching 50,000 members, our print, digital and event platforms offer a fantastic way to raise your business profile and help you grow.

Find out more LBV124 Online Graphic
Subscribe now

Weekly news bulletin