How long a heating installation typically takes
How long an installation takes depends heavily on the scope of work involved, so a like-for-like boiler swap and a full relocation with pipework upgrades are simply not comparable in terms of duration. Timescales are set out clearly once the survey has established the actual scope.

How we read installation timescales on site
A straightforward like-for-like swap in an accessible location generally takes less time than a job involving relocating the boiler, extending pipework, changing flue routes or upgrading controls to current standards. Where a household needs to be without heating or hot water for part of the process, this is planned and communicated in advance so it can be scheduled around the household's needs where possible.
Practical notes on installation timescales
- Like-for-like swaps generally take less time than relocations or upgrades
- Pipework changes, flue extensions and controls upgrades all extend duration
- Any period without heating or hot water is planned and communicated in advance
- Access difficulties can extend how long a job takes on site
- Timescales are confirmed once survey findings establish the actual scope
Scope of work
- Domestic boiler installation
- Boiler servicing
- Boiler maintenance and repair
Questions we get asked
- Can I get hot water during a longer installation?
- This depends on the specific job, but temporary arrangements are discussed where a longer gap is expected.
- Does timing change with the season?
- Demand for heating work can be higher in colder months, which is worth factoring into how far ahead you book.
Where we deal with this
Related help pages
- Survey processWhat happens during a heating survey
- Cost driversStaging heating work across separate visits or phases
- ProcessHeat loss calculations: the basics behind correct sizing
- Cost driversFilters and system protection: what they do and why they're specified
- Glow-worm fault codeGlow-worm F22: low water pressure on an Ultracom or Betacom
- Installation decisionWorcester oil boilers: internal versus external siting
Sorted quickly: installation timescales
Put simply: Timescales follow directly from the scope established at survey — a simple swap and a full relocation are genuinely different jobs.
Jamie Crawford Heating is based at 24 Bristol Road, Radstock, BA3 3EE.
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