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

Six new trainees at Champion Accountants Trainees 2026 Plus Trainers 2

Six new trainees at Champion Accountants

14 Sep 2026

2

Fox Group sees double at Truckfest Group Photo Truckfest

Fox Group sees double at Truckfest

14 Sep 2026

3

Book your Sub36 Awards tickets today Dsc6576

Book your Sub36 Awards tickets today

14 Sep 2026

4

Fylde Fresh and Fabulous acquired by Chiltern Capital Gerard Lucas

Fylde Fresh and Fabulous acquired by Chiltern Capital

14 Sep 2026

5

Stanley House set for multimillion pound upgrade The Manor House At Stanley House Hotel Spa

Stanley House set for multimillion pound upgrade

14 Sep 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
LBV130 September/October Magazine Networking Event
LBV130 Magazine Launch Social720No Text 6 17 Sep 2026

LBV130 September/October Magazine Networking Event

The Beehive Blackburn, Shadsworth Business Park, BB1 2QS

08:30 - 10:30

Built Environment Conference 2026
BEC26 WW Logo720 24 Sep 2026

Built Environment Conference 2026

EG On The Move, Waterside Head Office, Blackburn, BB1 2FA

08:30 - 13:00

All In One Network
LBV Website Events GraphicAll In One Network 15 Oct 2026

All In One Network

The Leisure Box, Northlight, Glen Way, Brierfield , BB9 5NH

14:00 - 16:00

Sub36 Awards 2026
Sub36 WW Logo720 16 Oct 2026

Sub36 Awards 2026

Park Hall Hotel & Spa, Chorley, PR7 5LP

19:00 - 00:30

LBV131 November/December Magazine Networking Event
LBV131 Magazine Launch Social720No Text 19 Nov 2026

LBV131 November/December Magazine Networking Event

Lancashire

08:30 - 10:30

Lancashire Business Day 2026
LBD26 WW Logo720 27 Nov 2026

Lancashire Business Day 2026

Burnley Football Club, BB10 4BX

12:00 - 17:00

First Hire Readiness Workshop
LH Training 15 Sep 2026

First Hire Readiness Workshop

20:00 - 21:00

Business Twilight Networking Event
Business Twilight 16 Sep 2026

Business Twilight Networking Event

Engineering Innovation Centre, University of Lancashire, Preston, PR1 2HE

16:00 - 18:30

Launch Event - Business Support and Grant Programmes
Choose Chorley 23 Sep 2026

Launch Event - Business Support and Grant Programmes

Strawberry Fields Digital Hub, Chorley, PR7 1PS

08:45 - 11:00

Employment Law Update Lancashire
LBV Website Events GraphicEmployment Law 1 24 Sep 2026

Employment Law Update Lancashire

Crow Wood Hotel & Spa Resort, Burnley, BB12 0RT

09:00 - 12:00

September Freelancer Meet-Up
 Freelancer Meet-Up Square September .png.png 24 Sep 2026 - 24 Sep 2026

September Freelancer Meet-Up

Society1, Coworking Space, Preston, PR1 3LT

10:00 - 12:00

The Business Network Central and East Lancashire
LBV Website Events GraphicBusiness Network 2 24 Sep 2026

The Business Network Central and East Lancashire

Mytton Fold, Langho, BB6 8AB

11:30 - 14:15

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 LBV129 Online Graphic
Subscribe now

Weekly news bulletin