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

Planning ahead is key for attracting funding Funding Summit

Planning ahead is key for attracting funding

18 Jun 2026

2

Science in Sport secures £30m-plus backing for growth plans Sir Chris Hoy, chairman of SiS Elite Performance Advisory Panel

Science in Sport secures £30m-plus backing for growth plans

18 Jun 2026

3

BAE Systems commits €50m to European defence start-ups bae-systems-samlesbury.jpg

BAE Systems commits €50m to European defence start-ups

16 Jun 2026

4

David goes from looms to leadership David Collinge

David goes from looms to leadership

16 Jun 2026

5

Force Technology to supply valve springs for Cosworth hypercar engines Steve Williams

Force Technology to supply valve springs for Cosworth hypercar engines

16 Jun 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
LBV129 July/August Magazine Networking Event
Nov/Dec Networking Event
Networking
16 Jul 2026

LBV129 July/August Magazine Networking Event

Brysdales, Britannia Buildings Drumhead Road, Chorley, PR6 7BX

16:00 - 18:00

LBV130 September/October Magazine Networking Event
Jan/Feb Networking Event - Entrance
Networking
17 Sep 2026

LBV130 September/October Magazine Networking Event

The Beehive Blackburn, Shadsworth Business Park, BB1 2Q

08:30 - 10:30

LBV131 November/December Magazine Networking Event
Jan/ Feb Networking Event - Talking
Networking
19 Nov 2026

LBV131 November/December Magazine Networking Event

Lancashire

08:30 - 10:30

Chamber Business Lunch
LBV Hub Networking
19 Jun 2026

Chamber Business Lunch

Lancaster House Hotel, Lancaster, LA1 4GL

11:00 - 14:00

The Bay Business Club
Logo.jpg.jpg
LBV Hub Networking
22 Jun 2026

The Bay Business Club

Morecambe Football Club, Morecambe, LA4 4TB

17:00 - 19:00

Cyber Crime Awareness Event
Logo.jpg.jpg
LBV Hub Seminars
24 Jun 2026

Cyber Crime Awareness Event

Morecambe Golf Club, Morecambe, LA4 6AJ

13:00 - 16:00

Preston Freelancer Meet-Up: June
June Freelancer Square.png.png
LBV Hub Networking
24 Jun 2026

Preston Freelancer Meet-Up: June

Society1 Coworking Space, Preston, PR1 3LT

10:00 - 12:00

How to manage grievances…with confidence
Logo.jpg.jpg
LBV Hub Seminars
24 Jun 2026

How to manage grievances…with confidence

The Longlands Hotel, Carnforth, LA6 1JH

08:00 - 10:00

How can smarter employee benefits reduce costs and improve staff retention?
Screenshot 2026-05-20 100211.png.png
LBV Hub Roundtables
25 Jun 2026

How can smarter employee benefits reduce costs and improve staff retention?

Forbes Solicitors , Preston, PR5 6AW

08:30 - 10:00

NO Rackets Required - The Ultimate Padel Party
Crowdfunder.png.png
LBV Hub Social
26 Jun 2026

NO Rackets Required - The Ultimate Padel Party

Pendle Padel Club, Nelson, BB9 5SR

16:00 - 00:00

How hackers target SMEs - and how to protect your business
Lancashire_gamesdesign_Feb26-2120.jpg.jpg
LBV Hub Seminars
02 Jul 2026

How hackers target SMEs - and how to protect your business

Engineering Innovation Centre, Preston, PR1 2XS

09:30 - 11:30

The AI Lab: Marketing Multiplier
Event post 03.07.png.png
LBV Hub Seminars
03 Jul 2026

The AI Lab: Marketing Multiplier

Door4, Burnley Wharf, Manchester Road, Burnley, BB11 1JG

09:00 - 11:30

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