Heating, plumbing and air conditioning firms to acquire in Scotland

Updated 9 November 2026

Looking to acquire a heating, plumbing or air conditioning firm in Scotland? Firmbase ranks 350 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 8 staff and has been in business for 14 years. Looking beyond Scotland? Explore the full UK list of heating, plumbing and air conditioning firms.

350

Firms

UK 4,196

22%

Every director 55+

UK 19%

33%

Held 75%+ by one person

UK 31%

14

Median years in business

UK 14

8

Median headcount

UK 8

£500k to £1m

Median turnover band

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

Towns with the most firms

The first 25 firms, in Approach Score order

1

Gordon Dobbie Heating & Plumbing

Kirriemuir

Approach Score

90/100
  • In post since 2006
  • 1 individual holds 75%+ · independent
More about this firm
  • 11 staff · turnover est. £949k
  • Net assets £144k (Sep 2024)

Company no. SC307467 · Companies House

2

Cullen Plumbing & Heating

Edinburgh, Midlothian

Approach Score

86/100
  • In post since 2011
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £587k
  • Net assets £116k (Mar 2025)

Company no. SC393940 · Companies House

cullen-plumbing.co.uk

3

Powerflow Contracts

Larkhall, Lanarkshire

Approach Score

86/100
  • Director aged 65-69 · in post since 2008
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £807k
  • Net assets £371k (Apr 2026)
4

Fires & Heating

Tayside

Approach Score

84/100
  • Director aged 55-59 · in post since 2000
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £317k
  • Net assets £29k (Dec 2025)
5

McRobert Plumbing

Dumfries, Dumfriesshire

Approach Score

84/100
  • Longest in post since 2004
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £696k
  • Net assets £107k (Mar 2025)
  • PSC register changed Nov 2025
6

Asolve

Glasgow

Approach Score

83/100
  • Director aged 60-64 · in post since 2009
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £2.3m
  • Net assets £1.5m (Nov 2025)

Company no. SC368421 · Companies House

7

Park Plumbing & Heating

Perth, Perthshire

Approach Score

82/100
  • In post since 2009
  • 1 individual holds 75%+ · independent
More about this firm
  • 10 staff · turnover est. £1.1m
  • Net assets £292k (Jul 2025)

Company no. SC362525 · Companies House

parkplumbing.co.uk

8

Alan Kinghorn & SON Plumbing & Heating

Edinburgh

Approach Score

82/100
  • In post since 2016
  • 2 individuals hold 75%+ · independent
More about this firm
  • 6 staff · turnover est. £441k
  • Net assets £38k (Mar 2025)
9

Thomas Graham Plumbing & Heating

Glasgow, Fife

Approach Score

82/100
  • In post since 2007
  • 1 individual holds 75%+ · independent
More about this firm
  • 8 staff · turnover est. £504k
  • Net assets £53k (Feb 2025)
10

Dalex Systems

Penicuik, Midlothian

Approach Score

81/100
  • 2 directors aged 65-69 · longest in post since 2007
  • 2 individuals hold 75%+ · independent
More about this firm
  • 22 staff · turnover est. £1.8m
  • Net assets £199k (Aug 2025)

Company no. SC329954 · Companies House

dalexsystems.co.uk

11

Drain Surgeon Plumbing & Heating Engineers

Aberdeen

Approach Score

81/100
  • Director aged 55-59 · in post since 2014
  • 1 individual holds 75%+ · independent
More about this firm
  • 9 staff · turnover est. £847k
  • Net assets £145k (Mar 2024)

Company no. SC472520 · Companies House

12

Grange Energy Services

Grangemouth

A director sits on 4 or more companies

Approach Score

81/100
  • 2 directors aged 65-69 · longest in post since 2010
  • 2 individuals hold 50%+ · independent
More about this firm
  • 5 staff · turnover est. £450k
  • Net assets £96k (Dec 2024)
  • PSC register changed Apr 2026

Company no. SC383270 · Companies House

13

Optimumbms

Dumbarton, West Dunbartonshire

Approach Score

80/100
  • 1 director aged 65-69, 1 aged 60-64, 1 aged 55-59 · longest in post since 2006
  • Independent
More about this firm
  • 24 staff · turnover est. £1.9m
  • Net assets £978k (May 2025)

Company no. SC303086 · Companies House

optimumbms.co.uk

14

Scotia GAS Care

Burntisland, Fife

Approach Score

79/100
  • 1 director aged 60-64, 1 aged 55-59 · longest in post since 2010
  • 2 individuals hold 50%+ · independent
More about this firm
  • 14 staff · turnover est. £2.6m
  • Net assets £1.5m (Dec 2025)
  • Director resigned Sep 2026

Company no. SC345451 · Companies House

scotiagascare.co.uk

15

Greystone Energy

Dundee

Approach Score

79/100
  • Director aged 55-59 · in post since 2017
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £734k
  • Net assets £93k (Nov 2025)
16

G P Mcdonald Plumbing and Heating

Edinburgh

Approach Score

79/100
  • Longest in post since 2006
  • 2 individuals hold 50%+ · independent
More about this firm
  • 7 staff · turnover est. £842k
  • Net assets £436k (Mar 2025)

Company no. SC307171 · Companies House

17

Mangan Ventilation

Perth

Approach Score

79/100
  • In post since 2019
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £214k
  • Net assets £47k (Nov 2024)

Company no. SC646154 · Companies House

18

Grampian Plumbing Services

Aberlour, Banffshire

Approach Score

79/100
  • Director aged 65-69 · in post since 2002
  • 1 individual holds 75%+ · independent
More about this firm
  • 8 staff · turnover est. £627k
  • Net assets £310k (Dec 2025)
19

Dmph

Glasgow, Lanarkshire

Approach Score

78/100
  • Longest in post since 2010
  • 2 individuals hold 50%+ · independent
More about this firm
  • 10 staff · turnover est. £1.4m
  • Net assets £712k (Mar 2026)

Company no. SC375854 · Companies House

dm-ph.com

20

The Natural Energy Company

Newport-on-TAY

Approach Score

78/100
  • 1 director aged 65-69, 1 aged 55-59, 1 aged under 45 · longest in post since 2009
  • 2 individuals hold 50%+ · held via a trust or firm · independent
More about this firm
  • 6 staff · turnover est. £2.3m
  • Net assets £1.2m (Mar 2025)
21

Scot-Vent

Strathclyde

Approach Score

78/100
  • 2 directors aged 70 or over, 1 aged 65-69, 2 aged 50-54 · longest in post since 2023
  • 1 individual holds 75%+ · independent
More about this firm
  • 7 staff · turnover est. £1.5m
  • Net assets £667k (Oct 2025)
  • Director resigned Sep 2026

Company no. SC058463 · Companies House

scotvent.co.uk

22

Thermal Comfort

Perth, Perthshire

A director sits on 4 or more companies

Approach Score

77/100
  • 1 director aged 60-64, 1 aged 55-59 · longest in post since 2001
  • 2 individuals hold 50%+ · held via a trust or firm · independent
More about this firm
  • 10 staff · turnover est. £501k
  • Net assets £164k (Oct 2024)
23

Anderson Floor Warming and Renewables

Paisley

Approach Score

77/100
  • Longest in post since 1998
  • 1 individual holds 75%+ · independent
More about this firm
  • 15 staff · turnover est. £2.2m
  • Net assets £798k (Jun 2026)
24

Absolut Plumbers

Musselburgh, Midlothian

Approach Score

77/100
  • 2 directors aged 55-59 · longest in post since 2012
  • 2 individuals hold 75%+ · independent
More about this firm
  • 7 staff · turnover est. £437k
  • Net assets £36k (Mar 2025)

Company no. SC416744 · Companies House

absolutplumbing.co.uk

25

Energy Efficient Cooling

Glasgow

Approach Score

77/100
  • Director aged 60-64 · in post since 2010
  • 2 individuals hold 50%+ · independent
More about this firm
  • 7 staff · turnover est. £1.4m
  • Net assets £640k (Dec 2025)

Company no. SC383908 · Companies House

eecooling.co.uk

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

You're seeing the first 25. Buy all 350 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 350 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 Scotland.
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.

You can find the company number on Companies House.

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The standard Firmbase list

Buy the list of all 350 firms, with director names, ages and shareholders

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