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

Japanese business steps forward to buy Rossendale footwear group Harvey Jacobson and Gola trainers

Japanese business steps forward to buy Rossendale footwear group

07 Jan 2026

2

Combined authority spearheads £20m innovation cash bid Workers on the shop floor

Combined authority spearheads £20m innovation cash bid

06 Jan 2026

3

Investment firm takes major stake in car repair specialist Vella Group

Investment firm takes major stake in car repair specialist

06 Jan 2026

4

Financial Affairs relocates to Business First Northlight to support growth Laurence O'Connor

Financial Affairs relocates to Business First Northlight to support growth

05 Jan 2026

5

Preparation is key to AI readiness Mark Edwards Seriun

Preparation is key to AI readiness

05 Jan 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
January / February 2026 - LBV Issue 126 Magazine Launch Event
Porsche Preston1200x630
Networking
22 Jan 2026

January / February 2026 - LBV Issue 126 Magazine Launch Event

Porsche Preston, Preston, PR2 1QJ

08:30 - 10:30

CMI Level 5 Management and Leadership Course
UCLanAerialCampus.jpg.jpg
LBV Hub Seminars
21 Feb 2025 - 21 Feb 2026

CMI Level 5 Management and Leadership Course

Preston Campus, Preston , PR1 2HE

09:00 - 17:00

RISE - Lancashire's unique leadership programme for women
thumbnail_Emma Weston Illustration WENDY BOWERS RISE Illustrstion.jpg.jpg
LBV Hub Seminars
22 Oct 2025 - 18 Mar 2026

RISE - Lancashire's unique leadership programme for women

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

09:30 - 15:30

Women scaling up Blackpool Fylde and Wyre
LBV Hub Seminars
22 Oct 2025 - 09 Jan 2026

Women scaling up Blackpool Fylde and Wyre

The Small Business Academy, Blackpool, FY4 5JX

09:30 - 15:30

St Catherine's Christmas Tree-Cycling
Tree Cycling.png.png
LBV Hub Fundraisers
25 Nov 2025 - 10 Jan 2026

St Catherine's Christmas Tree-Cycling

Several locations, Preston, PR5 5XU

10:00 - 13:07

Chamber Breakfast Networking – January
Lancs-cham-logo.jpg.jpg
LBV Hub Networking
08 Jan 2026 - 08 Jan 2026

Chamber Breakfast Networking – January

3-1-5 Health Club, Lancaster, LA1 3PE

08:00 - 10:00

Lancashire County Council – Meet the Buyer - January 2026 Webinar Event
LBV Hub Webinar
13 Jan 2026

Lancashire County Council – Meet the Buyer - January 2026 Webinar Event

10:00 - 12:00

Society1 Open Coworking Day
Open Day Square.png.png
LBV Hub Networking
15 Jan 2026 - 15 Jan 2026

Society1 Open Coworking Day

Society1, Coworking Space, Preston, PR1 3LT

09:00 - 17:00

The Business Network Central and East Lancashire
LBV Header (28).png.png
LBV Hub Networking
15 Jan 2026 - 15 Jan 2026

The Business Network Central and East Lancashire

Stanley House, Blackburn, BB2 7NP

11:30 - 14:15

Preston Tech Connection: Tech For Better Humans
PTC January 26 banner.jpg.jpg
LBV Hub Networking
15 Jan 2026 - 15 Jan 2026

Preston Tech Connection: Tech For Better Humans

Society1, Coworking Space, Preston, PR1 3LT

18:00 - 19:30

Preston Freelancer Meet-Up: January
January Freelancer Meet-Up Square .png.png
LBV Hub Networking
20 Jan 2026 - 20 Jan 2026

Preston Freelancer Meet-Up: January

Society1, Coworking Space, Preston, PR1 3LT

10:00 - 12:00

Lancashire County Council – Meet the Buyer Drop in Event
Meet the Buyer event new
LBV Hub Networking
20 Jan 2026

Lancashire County Council – Meet the Buyer Drop in Event

County Hall, Pitt Street, Preston , PR1 8XJ

10:00 - 15:00

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