Mechanical & Plumbing
Mechanical, Plumbing& Associated Works in Stevenage
Mechanical, plumbing and associated works delivered alongside your electrical project, with specialist gas and F-Gas elements handled by registered subcontractors, all coordinated through one point of contact.
20 years in the trade · £10m public liability cover
20 yrs
experience
4.95/5
TrustATrader rating
£10m
public liability cover
£10m
employers' liability cover
The service
Mechanical and plumbing works, alongside electrical
Linehan Mechanical & Electrical Ltd is, as the name suggests, primarily an electrical contractor, but mechanical, plumbing and associated works are offered as a supporting service on projects that need them. Gary Linehan has run the business for 20 years, based in Stevenage and working across Hertfordshire, Bedfordshire, Cambridgeshire and London.
This supporting offer exists so a project doesn't need multiple separate contractors coordinating around each other on site. Where a job includes elements that require F-Gas or Gas Safe registration, that work is carried out by registered subcontractors, not by Linehan directly, so you still get specialist, qualified hands on that part of the job, managed through the same point of contact as the electrical works.
This is a supporting service to the electrical side of the business, not a standalone mechanical contracting arm. It's most relevant on larger domestic and commercial projects where mechanical and electrical works happen side by side: a renovation, a fit-out, or a bigger installation where coordinating trades matters.
As with every job, a clear, free quote comes first, and the business carries £10m public liability and £10m employers' liability insurance across its work.
If it's left
Why coordinating mechanical and electrical work matters
Mechanical and electrical works often sit close together on a project: in the same plant room, the same ceiling void, the same kitchen or bathroom. Poor coordination between separate trades causes delays and rework.
Clashing trades on site
Separate contractors working without coordination can duplicate access, damage each other's completed work, or hold each other up.
Unclear scope boundaries
Without one point of contact managing the whole job, it's easy for parts of a project to fall between two contractors.
Unregistered work on gas or F-Gas elements
Gas and F-Gas work must be carried out by properly registered engineers | this is non-negotiable, and it's why Linehan uses registered subcontractors for that specific work rather than doing it in-house.
Delays from poor sequencing
Mechanical and electrical works often need to happen in a particular order on site | getting that sequencing wrong adds time to a project.
Inconsistent quality across trades
Mixing contractors with different standards can leave one part of a job finished to a lower standard than another.
Common mistakes we see
- ×Booking mechanical and electrical trades separately without coordinating access or sequencing
- ×Assuming any contractor can carry out gas or F-Gas work without the right registration
- ×Not confirming who's responsible for which part of a mixed-scope job
- ×Leaving mechanical elements until electrical work is already complete, causing avoidable rework
- ×Skipping a site visit on larger mixed-scope jobs and relying on a rough estimate
How we work
How a mechanical and electrical project is coordinated
- 01
Scope the job
Describe the project and which elements are mechanical, plumbing or associated works alongside the electrical scope. Larger jobs get a free site visit.
- 02
Plan the sequence
Work is planned so mechanical, plumbing and electrical elements happen in the right order, minimising clashes and repeat visits.
- 03
Bring in registered subcontractors where needed
Any work requiring F-Gas or Gas Safe registration is carried out by registered subcontractors, coordinated as part of the overall project.
- 04
Carry out and test the work
Electrical elements are tested to BS 7671; mechanical and plumbing elements are checked and signed off by the subcontractor responsible for that scope.
- 05
Completion and guarantee
The finished project is handed over with everything explained. Linehan's own workmanship is guaranteed for 12 months; subcontracted elements carry their own terms.
What you get
Why coordinate mechanical works through Linehan
One point of contact
A single contact manages the mechanical, plumbing and electrical scope together instead of you juggling separate trades.
Specialist work done properly
F-Gas and Gas Safe elements go to registered subcontractors, so that part of the job is in the right hands.
Less disruption on site
Coordinated sequencing between trades reduces repeat visits and clashing access.
Fair, upfront pricing
A free quote covers the whole scope before any work starts.
Consistent standards
Electrical elements are tested to BS 7671 and carry the same 12-month guarantee as any other Linehan job.
20 years of project experience
Two decades coordinating jobs of all sizes, from domestic renovations to larger commercial projects.
In detail
What mechanical and associated works cover
Mechanical, plumbing and associated works are offered alongside electrical projects, not as a separate standalone service. Here's how that works in practice.
Scope of the supporting offer
This service covers mechanical, plumbing and associated works that sit alongside an electrical project: coordinating the wider job rather than running a separate mechanical contracting business. Specific mechanical scopes such as heating, ventilation and plant work in-house are still being confirmed, so if your project needs one of these, it's best discussed directly so the right arrangement, in-house or subcontracted, can be confirmed for your job.
What is confirmed is that on larger projects, elements requiring F-Gas or Gas Safe registration are delivered by registered subcontractors, giving you access to specialist, properly qualified trades without managing them separately yourself.
Methods and standards
Electrical elements of any mixed-scope project are still carried out to BS 7671, the UK wiring regulations, with the same testing sequence as any standalone electrical job: continuity, insulation resistance, polarity, earth fault loop impedance and RCD operation.
Mechanical, plumbing and F-Gas elements delivered by subcontractors are carried out and signed off against the standards relevant to that trade, by engineers holding the appropriate registration for that work.
Typical situations
This supporting service tends to come up on larger renovations or fit-outs, where mechanical and electrical works happen close together: for example a plant room, a kitchen extension, or a commercial unit being refitted. It's less relevant to small, electrical-only jobs, which are quoted and run as standard electrical work.
On domestic jobs, this might mean coordinating a boiler or heating-adjacent task with new circuits. On commercial jobs, it might mean coordinating plant-related works with a wider electrical installation such as an LV panel board.
Residential versus commercial
On residential projects, mechanical and associated works are usually a smaller, defined part of a bigger electrical or renovation job. On commercial and industrial sites, mechanical works can be a larger and more technical part of the overall project, with more subcontractor coordination required and a site visit needed before anything is quoted.
Related services
Questions
Frequently asked questions
Do you carry out gas or F-Gas work yourselves?
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No. Gas Safe and F-Gas registered work is carried out by registered subcontractors, not directly by Linehan. This is managed as part of the wider project.
What mechanical work do you do in-house?
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Mechanical, plumbing and associated works are offered as a supporting service alongside electrical projects. The exact in-house scope is best confirmed for your specific job when you call.
How much does mechanical work cost?
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There's no fixed 'from' price for mechanical works: every job is quoted individually based on scope, after a free site visit for larger projects.
Do you offer free quotes for mixed-scope projects?
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Yes, quotes are free. Larger mixed mechanical and electrical projects need a site visit to scope properly.
How long does a mechanical and electrical project take?
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This depends entirely on scope; it's assessed and agreed during the quote stage before work starts.
Is the work guaranteed?
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Linehan's own workmanship is guaranteed for 12 months. Subcontracted mechanical, plumbing or F-Gas work carries the terms of the subcontractor carrying it out.
Can I call out of hours?
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The phone line is answered 24 hours a day, so you can call any time to discuss a project. No specific attendance time is promised.
Do you cover Stevenage and the wider Hertfordshire area?
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Yes, projects are coordinated across Stevenage, Hertfordshire, Bedfordshire, Cambridgeshire and London.
How do I pay?
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Payment can be made by whatever method suits you, with terms of 14 days from completion. Larger jobs require a 10% deposit.
Should I book mechanical and electrical work separately?
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Not if the two are related on the same project: coordinating them together through one point of contact reduces clashes and repeat site visits.
Get a free quote for your project
Tell us about the mechanical, plumbing and electrical scope of your job and get a free, no-obligation quote. Call Gary any time on +44 7855 954229.
- NICEIC Approved Contractor
- 12-month workmanship guarantee
- 4.95 on TrustATrader