Heating, plumbing and air conditioning firms to acquire in Middlesbrough

Name: Heating, plumbing and air conditioning firms to acquire in Middlesbrough
Creator: Firmbase
License: https://firmbase.co/terms

Updated 9 November 2026

Looking to acquire a heating, plumbing or air conditioning firm in Middlesbrough? Firmbase ranks 36 heating, plumbing and air conditioning firms using public company information to help buyers prioritise firms for research and potential outreach. The Approach Score ranks firms using public signals including director age and tenure, ownership, business scale, financial strength and recent changes. These firms are not listed for sale, and the ranking does not indicate that an owner is considering a sale.

The median firm has 9 staff and has been in business for 11 years. Looking beyond Middlesbrough? Explore the full North East list of heating, plumbing and air conditioning firms.

Firms

UK 4,196

Every director 55+

UK 19%

31%

Held 75%+ by one person

UK 31%

Median years in business

UK 14

Median headcount

UK 8

£500k to £1m

Median turnover band

UK £500k to £1m · includes our estimates

The first 25 firms, in Approach Score order

Rank	Firm	Approach Score	The facts behind the score
1	Emanuel Spence Yarm, Cleveland	Approach Score 76/100	We hold older figures than Companies House In post since 2009 1 individual holds 75%+ · independent More about this firm 7 staff · turnover est. £436k Net assets £3k · newer accounts made up to Apr 2025 Company no. 06806377 · Companies House tradehq.co.uk/esmsl
2	Maddison Plumbing Heating and GAS Services Billingham, Co. Durham A director sits on 4 or more companies	Approach Score 72/100	We hold older figures than Companies House In post since 2002 1 individual holds 75%+ · independent More about this firm 6 staff · turnover est. £556k Net assets -£106k · newer accounts made up to Mar 2025 Director resigned Jun 2025 Company no. 04591176 · Companies House maddisonplumbing.co.uk
3	S C Henderson & SON Middlesbrough, Cleveland	Approach Score 72/100	We hold older figures than Companies House In post since 2010 1 individual holds 75%+ · independent More about this firm 10 staff · turnover est. £762k Net assets £78k (Feb 2022) · newer accounts made up to Feb 2025 PSC register changed May 2025 Company no. 07154481 · Companies House schendersonandson.co.uk
4	SRB Plumbing & Mechanical Services Hartlepool, Cleveland	Approach Score 68/100	1 director aged 65-69, 1 aged under 45 · longest in post since 2017 2 individuals hold 50%+ · independent More about this firm 6 staff · turnover est. £618k Net assets £390k (Mar 2025) Company no. 10725386 · Companies House
5	Coldtech Refrigeration & AIR Conditioning Middlesbrough	Approach Score 68/100	2 directors aged 55-59, 1 aged under 45 · longest in post since 2015 Independent More about this firm 19 staff · turnover est. £1.1m Net assets £3k (Mar 2025) Director resigned Jul 2026 · PSC register changed Jul 2026 Company no. 09421934 · Companies House coldtech-refrigeration.co.uk
6	A & a Ducting Services Stockton on Tees	Approach Score 67/100	2 directors aged 55-59 · longest in post since 2006 1 individual holds 75%+ · independent More about this firm 6 staff · turnover est. £444k Company no. 05739759 · Companies House
7	MNP Services Stockton-on-Tees, Cleveland	Approach Score 64/100	We hold older figures than Companies House Director aged 60-64 · in post since 2003 Corporate owner More about this firm 28 staff · turnover est. £4.3m Net assets £992k (Dec 2021) · newer accounts made up to Dec 2025 Director resigned Jan 2025 · PSC register changed Jan 2025 Company no. 04258213 · Companies House mnptracknav.co.uk
8	Matt Grange Stockton on Tees, CO. Durham	Approach Score 63/100	In post since 2019 1 individual holds 75%+ · independent More about this firm 11 staff · turnover est. £835k Net assets £120k (Mar 2026) Company no. 11897677 · Companies House mattgrange.co.uk
9	PGL Trades Billingham	Approach Score 62/100	1 director aged 45-49, 1 aged under 45 · longest in post since 2019 2 individuals hold 50%+ · independent More about this firm 11 staff · turnover est. £623k Net assets £25k (Mar 2025) Director resigned Apr 2026 · PSC register changed Mar 2026 Company no. 12308833 · Companies House pgltrades.co.uk
10	Croft Plumbing, Heating, Electrical Contractors Hartlepool	Approach Score 62/100	Director aged 50-54 · in post since 2017 2 individuals hold 75%+ · independent More about this firm 8 staff · turnover est. £489k Net assets £122k (Sep 2025) Company no. 10900291 · Companies House croftcontractors.com
11	Ambient Air Conditioning Stockton-on-Tees	Approach Score 60/100	2 directors aged 45-49 · longest in post since 2004 2 individuals hold 50%+ · independent More about this firm 15 staff · turnover est. £2.5m Net assets £815k (Mar 2025) Company no. 05112302 · Companies House ambientac.co.uk
12	Marshall Clean Heat and Power Stockton-on-Tees	Approach Score 59/100	Longest in post since 2008 1 individual holds 75%+ · independent More about this firm 20 staff · turnover est. £2.5m Net assets £618k (Sep 2024) Company no. 06696717 · Companies House marshallenergy.co.uk
13	NR Heating Middlesbrough, Cleveland	Approach Score 58/100	In post since 2017 1 individual holds 75%+ · held via a trust or firm · independent More about this firm 5 staff · turnover est. £343k Net assets £96k (Apr 2026) Company no. 10711432 · Companies House nrheatingservices.co.uk
14	KBH Plumbings Hartlepool	Approach Score 57/100	Director aged 45-49 · in post since 2008 Independent More about this firm 6 staff · turnover est. £661k Net assets £90k (Mar 2025) Company no. 06463824 · Companies House kbhplumbings.com
15	Star Plumbing Stockton-on-Tees, North Yorkshire	Approach Score 54/100	2 directors aged under 45 · longest in post since 2016 2 individuals hold 50%+ · independent More about this firm 7 staff · turnover est. £751k Net assets £46k (Jun 2025) Company no. 10341946 · Companies House starplumbinglimited.co.uk
16	Mustoe Engineering Stockton-on-Tees	Approach Score 53/100	1 director aged 45-49, 1 aged under 45 · longest in post since 2023 2 individuals hold 50%+ · independent More about this firm 5 staff · turnover est. £571k Net assets £89k (Mar 2025) Director resigned May 2025 · PSC register changed Jun 2025 Company no. 14735867 · Companies House
17	GA Oliver Plumbing and Heating Darlington, County Durham	Approach Score 52/100	We hold older figures than Companies House Longest in post since 2003 Corporate owner More about this firm 9 staff · turnover est. £766k Net assets £65k · newer accounts made up to Jun 2025 Company no. 04767799 · Companies House gaoliverltd.co.uk
18	Borthwick Heating Insulation Hartlepool A director sits on 4 or more companies	Approach Score 52/100	In post since 2008 2 individuals hold 50%+ · independent More about this firm 143 staff · turnover £50.2m Net assets £14.5m (Dec 2023) Director resigned Feb 2026 Company no. 06753929 · Companies House borthwickheating.co.uk
19	Maval Electrical and Mechanical Engineering Middlesbrough, Teeside	Approach Score 52/100	1 director aged 70 or over, 1 aged 45-49, 1 aged under 45 · longest in post since 2023 Corporate owner More about this firm 34 staff · turnover est. £5.4m Net assets £731k (Oct 2025) Company no. 01062609 · Companies House maval.co.uk
20	Enviro -Tech Maintenance Services Stockton-on-Tees	Approach Score 52/100	1 director aged 55-59, 1 aged 50-54 · longest in post since 2015 2 individuals hold 50%+ · independent More about this firm 5 staff · turnover est. £220k Net assets -£27k (Apr 2025) Company no. 09534282 · Companies House enviro-techms.co.uk
21	Just Fires Guisborough, Cleveland	Approach Score 52/100	Director aged 50-54 · in post since 2006 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £472k No net assets figure held · accounts made up to Sep 2025 Company no. 05934627 · Companies House
22	Action Electrical Hartlepool, County Durham	Approach Score 50/100	1 director aged 45-49, 1 aged under 45 · longest in post since 2018 2 individuals hold 50%+ · independent More about this firm 22 staff · turnover est. £1.3m Net assets £36k (Apr 2025) Company no. 11290159 · Companies House actionelectrical.net/our-work
23	(NE) Middlesbrough	Approach Score 48/100	Director aged under 45 · in post since 2020 1 individual holds 75%+ · independent More about this firm 5 staff · turnover est. £74k Net assets £161k (Nov 2025) Company no. 13040459 · Companies House
24	Closecooper Darlington, CO. Durham A director sits on 4 or more companies	Approach Score 46/100	Longest in post since 2020 2 individuals hold 50%+ · independent More about this firm 12 staff · turnover est. £1.1m Net assets £163k (May 2026) Company no. 12504796 · Companies House closecooper.co.uk
25	E-Wire Northern Middlesbrough	Approach Score 46/100	2 directors aged 60-64, 1 aged under 45 · longest in post since 2009 2 individuals hold 50%+ · independent More about this firm 24 staff · turnover est. £577k No net assets figure held · accounts made up to Aug 2025 Company no. 06844951 · Companies House ewirenorthern.co.uk

11 more firms are in the list, in Approach Score order.

You're seeing the first 25. Buy all 36 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 36 firms, with director names, ages and shareholders

Each row comes with the facts behind its score, financials with dates and contact details.

What's in the file

One row per firm, in Approach Score order, as Excel + CSV.

It holds the facts behind each score, points for each part of the score, financials with dates, publicly available contact details, where identified, director names and named shareholders.

Some people with significant control appear as Other individual, with no further detail. Director email lookups are not included.

How this list is filtered

5 or more staff, from filed headcount or our estimate where none is filed.
Registered office in Middlesbrough.

See every filter on the UK list

How this list is built

The Approach Score ranks firms mainly on public Companies House information about owner tenure and age, ownership, size, financial strength and recent register changes.

Firms with higher scores appear first in each list.

Use the ranking to order research, then check each business directly.

Read how the Approach Score works

What it does not mean

No firm here is for sale, and the score says nothing about any owner's plans.

At least 95% of the firms where we hold directors had them checked in or after November 2026.

What we do not cover

Regulatory information is not included in this list. Buyers should check the relevant register as part of their due diligence. For gas work, check businesses and engineers on the Gas Safe Register. For relevant refrigeration and air conditioning work, verify company F-gas certification with its issuing body, using registers such as REFCOM Active Certificates.

Why age bands but no people's names

Age bands come from the month and year of birth on Companies House. This page shows no exact ages and no people's names. Both come with the purchased list. The band edges from 45 to 65 are the ages where the score changes. A row shows no age bands when a director's surname is in the firm's name, its group's name or its website. Those directors' ages still count towards the score.

Is this your firm?

You can ask us to take it off every acquisition page, and out of every list we sell after that. Give us your name and work email, and we send you a link to confirm. If your email address is on the firm's own website domain, the firm comes off once you confirm. If it is not, a person reviews your request first. A list already sold stays with its buyer.

To have personal data erased, see our privacy policy.

Other areas

North East Newcastle upon Tyne

The standard Firmbase list

Plumbing & Heating Companies in the UK