Heating, plumbing and air conditioning firms to acquire in Edinburgh

Updated 9 November 2026

Looking to acquire a heating, plumbing or air conditioning firm in Edinburgh? Firmbase ranks 49 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 14 years. Looking beyond Edinburgh? Explore the full Scotland list of heating, plumbing and air conditioning firms.

49

Firms

UK 4,196

25%

Every director 55+

UK 19%

20%

Held 75%+ by one person

UK 31%

14

Median years in business

UK 14

9

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

1

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

2

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)
3

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

4

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

5

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

6

R Scott Bathrooms

Edinburgh

Approach Score

74/100
  • In post since 2007
  • 2 individuals hold 50%+ · independent
More about this firm
  • 9 staff · turnover est. £1.3m
  • Net assets £183k (Aug 2025)
7

Gaswarm Services

Dalkeith

Approach Score

74/100

We hold older figures than Companies House

  • Director aged 70 or over · in post since 2006
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £299k
  • Net assets £837 (Mar 2022) · newer accounts made up to Mar 2025

Company no. SC299999 · Companies House

gaswarm.com

8

SH Property Services (edinburgh)

Edinburgh

Approach Score

73/100
  • 1 director aged 60-64, 1 aged 50-54 · longest in post since 2016
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £397k
  • Net assets £54k (Jun 2025)
9

Lothian GAS

Dryden Glen, Loanhead

Approach Score

73/100
  • Director aged 60-64 · in post since 1997
  • Independent
More about this firm
  • 13 staff · turnover est. £752k
  • Net assets £136k (Jun 2024)

Company no. SC176096 · Companies House

lothiangas.co.uk

10

Caledonian Heating and Plumbing

Edinburgh

Approach Score

72/100
  • 2 directors aged 55-59 · longest in post since 2003
  • 2 individuals hold 50%+ · independent
More about this firm
  • 20 staff · turnover est. £2.8m
  • Net assets £946k (Mar 2026)
11

Haggart Plumbers

Edinburgh

A director sits on 4 or more companies

Approach Score

72/100
  • Director aged 65-69 · in post since 2024
  • 1 individual holds 75%+ · independent
More about this firm
  • 6 staff · turnover est. £155k
  • Net assets £1k (May 2026)

Company no. SC732974 · Companies House

12

H & C Mechanical Services

Juniper Green, Midlothian

Approach Score

71/100
  • 1 director aged 60-64, 1 aged under 45 · longest in post since 2008
  • 2 individuals hold 75%+ · independent
More about this firm
  • 8 staff · turnover est. £86k
  • Net assets £111k (Jan 2026)

Company no. SC335933 · Companies House

hacmechanical.co.uk

13

Chaps Heating & Plumbing

Edinburgh

Approach Score

69/100

We hold older figures than Companies House

  • 1 director aged 70 or over, 2 aged 45-49 · longest in post since 2012
  • 2 individuals hold 75%+ · independent
More about this firm
  • 5 staff · turnover est. £322k
  • Net assets £56k · newer accounts made up to Mar 2025

Company no. SC421120 · Companies House

chapsheating.co.uk

14

D. & P. Plumbing & Heating

Edinburgh, East Lothian

Approach Score

68/100
  • 1 director aged 65-69, 1 aged 60-64 · longest in post since 1997
  • Independent
More about this firm
  • 29 staff · turnover est. £2.8m
  • Net assets £115k (May 2025)

Company no. SC173608 · Companies House

dpplumbing.co.uk

15

RED Plumbing

Edinburgh

Approach Score

68/100
  • 2 directors aged 55-59 · longest in post since 2011
  • Held via a trust or firm · independent
More about this firm
  • 6 staff · turnover est. £435k
  • Net assets £111k (Apr 2025)

Company no. SC395769 · Companies House

redplumbing.co.uk

16

Comfort Plumbing and Heating

Approach Score

67/100
  • Director aged 55-59 · in post since 1993
  • 2 individuals hold 50%+ · independent
More about this firm
  • 5 staff · turnover est. £407k
  • Net assets £51k (Jan 2025)

Company no. SC142070 · Companies House

17

J&E MacGregor Plumbing

Loanhead

Approach Score

65/100

We hold older figures than Companies House

  • Longest in post since 2009
  • 2 individuals hold 50%+ · independent
More about this firm
  • 8 staff · turnover est. £515k
  • Net assets £103k · newer accounts made up to Oct 2025

Company no. SC365611 · Companies House

jemacgregor.co.uk

18

GG Engineering Limited

Prestonpans, East Lothian

Approach Score

62/100

We hold older figures than Companies House

  • 1 director aged 55-59, 1 aged 50-54 · longest in post since 2006
  • 2 individuals hold 50%+ · independent
More about this firm
  • 11 staff · turnover est. £1.4m
  • Net assets £255k · newer accounts made up to May 2025

Company no. SC301411 · Companies House

ggelimited.com

19

T Hill (plumbing & Heating)

Loanhead

Approach Score

61/100
  • Longest in post since 2007
  • 2 individuals hold 75%+ · independent
More about this firm
  • 5 staff · turnover est. £523k
  • Net assets £118k (Dec 2025)

Company no. SC335110 · Companies House

20

H5 AIR Conditioning Services

Roslin, Midlothian

Approach Score

60/100
  • Director aged under 45 · in post since 2019
  • 1 individual holds 75%+ · independent
More about this firm
  • 10 staff · turnover est. £1.8m
  • Net assets £925k (Mar 2025)

Company no. SC626089 · Companies House

21

Peter Joyce & SON

Gorebridge

Approach Score

59/100
  • Longest in post since 2019
  • Independent
More about this firm
  • 24 staff · turnover est. £1.6m
  • Net assets £226k (Jul 2025)

Company no. SC636058 · Companies House

22

EHT Services

Edinburgh

Approach Score

59/100
  • Director aged under 45 · in post since 2022
  • 1 individual holds 75%+ · independent
More about this firm
  • 5 staff · turnover est. £657k
  • Net assets £46k (May 2024)

Company no. SC732784 · Companies House

23

The Edinburgh Boiler

Dalkeith

A director sits on 4 or more companies

Approach Score

57/100
  • 3 directors aged under 45 · longest in post since 2015
  • 1 individual holds 75%+ · independent
More about this firm
  • 38 staff · turnover est. £3.6m
  • Net assets £119k (Mar 2025)
24

Heatsource Plumbing & Heating

Edinburgh

Approach Score

57/100
  • Director aged under 45 · in post since 2015
  • 2 individuals hold 75%+ · independent
More about this firm
  • 18 staff · turnover est. £973k
  • Net assets £250k (Mar 2025)

Company no. SC498223 · Companies House

heatsourceheat.co.uk

25

Owen Gibb and Sons

Edinburgh

A director sits on 4 or more companies

Approach Score

56/100
  • Longest in post since 2013
  • 2 individuals hold 75%+ · independent
More about this firm
  • 24 staff · turnover est. £1.9m
  • Net assets £32k (Mar 2025)

Company no. SC449914 · Companies House

owengibbandsons.co.uk

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

You're seeing the first 25. Buy all 49 for £799 + VAT, with the facts behind each score, director names, shareholders and financials.

Buy the list of all 49 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 Edinburgh.
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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Buy the list of all 49 firms, with director names, ages and shareholders

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