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

SiS launches in Japan Kazuto Iizawa

SiS launches in Japan

03 Jul 2026

2

80 trees mark 80 years at Springfields Craig Boothby Planting The Final Tree

80 trees mark 80 years at Springfields

03 Jul 2026

3

Bowker to open new LEPAS Lancashire dealerships Bowker and LEPAS agreement

Bowker to open new LEPAS Lancashire dealerships

02 Jul 2026

4

Screening specialist launches service to simplify DBS checks ack Mellor CEO of MyCheck

Screening specialist launches service to simplify DBS checks

02 Jul 2026

5

GCAP green light boosts Lancashire defence sector GCAP funding

GCAP green light boosts Lancashire defence sector

01 Jul 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

Sub36 Awards 2026
Awards
16 Oct 2026

Sub36 Awards 2026

Park Hall Hotel & Spa , Chorley

18:00 - 00:00

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 Summer BBQ
LBV Hub Social
09 Jul 2026

Chamber Summer BBQ

The Borough , Lancaster, LA1 1PP

17:30 - 20:00

Society1 Breakfast Social and Coworking Day
LBV Hub Networking
09 Jul 2026

Society1 Breakfast Social and Coworking Day

Society1, Coworking Space, Preston, PR1 3LT

09:00 - 17:00

Clubhouse Business Network sponsored by Orca Finance - July 2026
padel-networkpng.png.png
LBV Hub Networking
09 Jul 2026 - 09 Jul 2026

Clubhouse Business Network sponsored by Orca Finance - July 2026

Clubhouse, Blackburn, BB1 3NT

14:00 - 16:00

Preparing for the changes to unfair dismissal
Logo.jpg.jpg
LBV Hub Seminars
15 Jul 2026

Preparing for the changes to unfair dismissal

The Longlands Hotel, Carnforth, LA6 1JH

08:00 - 10:00

July Preston Tech Connection Hot Takes
PTC Square July (900 x 900 px).png.png
LBV Hub Networking
15 Jul 2026

July Preston Tech Connection Hot Takes

Society1, Coworking Space, Preston, PR1 3LT

18:00 - 19:03

Achieving more with your money: Your options at retirement
LBV Hub Seminars
16 Jul 2026

Achieving more with your money: Your options at retirement

Accrington Stanley Football Club, Accrington, BB5 5BX

17:55 - 17:55

The Business Network Central and East Lancashire
LBV Header (34).png.png
LBV Hub Networking
16 Jul 2026 - 16 Jul 2026

The Business Network Central and East Lancashire

Mytton Fold, Langho, BB6 8AB

11:30 - 14:15

Preston Freelancer Meet-Up July
LBV Hub Networking
21 Jul 2026

Preston Freelancer Meet-Up July

Society1, Coworking Space, Preston, PR1 3LT

10:00 - 12:00

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