Is oil more expensive to run than mains gas?

Oil and gas prices both move with the wholesale market and neither is fixed, so a blanket answer isn't honest. What we can say is that a modern condensing oil boiler, correctly sized and commissioned, will run considerably more efficiently than an old non-condensing model — that efficiency gap usually matters more than the fuel choice itself.

Can you look over a quote I've already had from another company?

Yes, this comes up often. Send or bring in the other written quote and we'll go through the spec — boiler size, controls, cylinder if included, and what's actually listed for parts and labour — and tell you plainly whether it looks right for the property, oversized, or missing something we'd expect to see.

We've still got an old back boiler behind the fireplace — what's involved in removing it?

Removing a back boiler means capping off the gas and water connections behind the fireplace, making good the opening or fitting a new fire/surround if you're keeping one, and rerouting pipework to the new combi or system boiler's position. It's more work than a like-for-like swap but a common upgrade on the older housing stock in this area.

How do you decide whether to repair or replace a boiler?

We weigh the age of the boiler, whether parts are still made for it, how many faults it's had recently, and its running efficiency against a like-for-like or upgraded replacement. If a straightforward part fixes it and the boiler's otherwise sound, we'll say so rather than push a new install you don't need.

What are your opening hours, and can you help out of hours?

Our published hours are Monday to Friday, 8:30am to 5pm, and that's when the phones are answered and jobs are booked. We're honest that we don't run a round-the-clock emergency line, so if you're planning ahead, call during those hours on 07516 118198 and we'll get you booked in.

What's an unvented cylinder and does it need special installation rules?

An unvented cylinder stores mains-pressure hot water without a cold water tank in the loft, giving strong pressure at every outlet. Building Regulations require it to be fitted and commissioned by someone holding a specific unvented cylinder qualification (which we hold), including fitting the correct safety valves, because an incorrectly installed unvented cylinder is a pressure vessel hazard.

Boiler Servicing — Larkhall (BA1)

Boiler Servicing is something we handle directly from our base at 24 Bristol Road, Radstock BA3 3EE, rather than subcontracting it out. That means one point of contact for the whole job, from the first look at the property through to commissioning and handover. Gas Safe registered, OFTEC registered and a Worcester Bosch Accredited Installer, open Monday to Friday, 8:30am to 5pm on 07516 118198. a high proportion of rented and let properties make up most enquiries from this postcode. Our van runs the A4 to reach you, 9 miles out from the Radstock workshop. In Larkhall itself (BA1, Somerset) that usually means victorian stone terraces, roughly 9 miles from the workshop.

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BA1 · Somerset · 9 mi from Radstock · A4

Boiler work underway on victorian stone terraces near Larkhall, boiler servicing in Larkhall (BA1) — 9 miles from our Radstock base

Included as standard in Larkhall

Full annual safety check
Landlord gas safety certificates
Efficiency report
Friendly, tidy engineers
Free written quote, no obligation
Local aftercare from a 9-mile base

Proof, paperwork and accountability

Gas Safe registered

Reg. 549918 — every gas job notified to Building Control and a CP12 issued where required.

Checkatrade 9.9/10

362+ verified reviews from real customers across BA and BS postcodes.

Fixed written prices

No verbal-only quotes. You'll get the boiler model, controls and warranty in writing before we book.

Worcester Bosch Accredited

Qualifies your install for the full 10-year manufacturer guarantee* on supported models.

Within reach of the A4

Beyond Larkhall we're frequently on jobs in Bath (BA1), Batheaston (BA1), Lansdown (BA1) and Bathampton (BA2) — so spares, follow-ups and annual services are straightforward.

What the buildings in Larkhall change about the job

Conservation area status, and in Bath's case UNESCO World Heritage designation, adds a layer of consideration to anything visible from the street, particularly flue positions and external pipework. It doesn't rule out a straightforward boiler replacement, but it does mean the survey needs to look properly at routing options that keep the installation discreet and compliant. We flag this at quote stage rather than after the work has started, so there are no surprises about what can and can't be fitted where. Most of what we open up here is victorian stone terraces, which dictates flue routes and pipe sizing. Mains gas covers much of the area, with off-grid pockets, which changes the appliance shortlist. Larkhall is roughly 9 miles from our Radstock base via the A4. Typical property stock here: Victorian stone terraces. Larkhall sits in the Somerset BA1 postcode and is part of our weekly run, so local response is quick. Annual services in Larkhall include a full safety check, efficiency report and warranty stamp where applicable.

Questions before you book

Is oil more expensive to run than mains gas?: Oil and gas prices both move with the wholesale market and neither is fixed, so a blanket answer isn't honest. What we can say is that a modern condensing oil boiler, correctly sized and commissioned, will run considerably more efficiently than an old non-condensing model — that efficiency gap usually matters more than the fuel choice itself.
Can you look over a quote I've already had from another company?: Yes, this comes up often. Send or bring in the other written quote and we'll go through the spec — boiler size, controls, cylinder if included, and what's actually listed for parts and labour — and tell you plainly whether it looks right for the property, oversized, or missing something we'd expect to see.
We've still got an old back boiler behind the fireplace — what's involved in removing it?: Removing a back boiler means capping off the gas and water connections behind the fireplace, making good the opening or fitting a new fire/surround if you're keeping one, and rerouting pipework to the new combi or system boiler's position. It's more work than a like-for-like swap but a common upgrade on the older housing stock in this area.
How do you decide whether to repair or replace a boiler?: We weigh the age of the boiler, whether parts are still made for it, how many faults it's had recently, and its running efficiency against a like-for-like or upgraded replacement. If a straightforward part fixes it and the boiler's otherwise sound, we'll say so rather than push a new install you don't need.
What are your opening hours, and can you help out of hours?: Our published hours are Monday to Friday, 8:30am to 5pm, and that's when the phones are answered and jobs are booked. We're honest that we don't run a round-the-clock emergency line, so if you're planning ahead, call during those hours on 07516 118198 and we'll get you booked in.
What's an unvented cylinder and does it need special installation rules?: An unvented cylinder stores mains-pressure hot water without a cold water tank in the loft, giving strong pressure at every outlet. Building Regulations require it to be fitted and commissioned by someone holding a specific unvented cylinder qualification (which we hold), including fitting the correct safety valves, because an incorrectly installed unvented cylinder is a pressure vessel hazard.

Your next move in BA1

If you're still deciding whether boiler servicing is the right move for your property, a site visit and honest conversation costs you nothing but time. We'll tell you if we think repair is a better option than replacement, or if the job is more or less involved than you expected. Photos of the existing setup speed up pricing for suburb properties like these. Access is city parking, so parking, spoil removal and delivery timing get planned in advance. Conservation and listed constraints apply to parts of the area, so external work is checked first.

07516 118198 All services in Larkhall

Area data we work from

County: Somerset
Postcode district: BA1
Settlement type: suburb
Nearest classified road: A4
Distance from our base: 9 miles (Radstock, BA3)
Typical building stock: Victorian stone terraces
Water hardness: very hard limestone water
Fuel availability: mains gas with off-grid pockets
Customer mix: a high proportion of rented and let properties
Nearby areas covered: Bath, Batheaston, Lansdown, Bathampton

Technical notes for this job type

Why very hard limestone water shortens boiler life around Larkhall

The limestone geology under Somerset gives Larkhall very hard limestone water, which drops calcium carbonate out of solution as soon as it's heated. Inside a combi's plate heat exchanger the gaps between plates are only a millimetre or two wide, so scale narrows the waterways long before it's visible anywhere else in the system. The first symptom is usually a hot tap that runs warm rather than hot, or a boiler that fires more often for the same demand. Left unchecked, scale insulates the exchanger from the burner, forces flue gases hotter, and can crack the exchanger from thermal stress. A scale reducer fitted on the mains feed, sized to the property's flow rate, is cheaper to install once than to replace a heat exchanger twice.

Radiator sizing after lowering the flow temperature

Running a boiler at a lower flow temperature — typically 55°C or below rather than the old default of 70-80°C — improves condensing efficiency measurably, but it also reduces the heat output of every radiator in the house, because a radiator's output falls roughly with the square of the temperature difference to the room. Radiators sized correctly for a 75°C flow can end up unable to heat the room properly at 55°C unless they're upsized or supplemented. We check each radiator against the lower design flow temperature before recommending it, and where a room falls short we look at whether a larger single panel, a double panel, or an additional radiator on that circuit closes the gap, rather than pushing the flow temperature back up and giving away the efficiency gain.

Larkhall's A4 corridor and what it means for scheduling

Properties along or near the A4 corridor around Larkhall are generally straightforward to reach without the access constraints of side lanes or unclassified roads further off the main network, which helps with scheduling deliveries of boilers, cylinders or oil tanks to a fixed slot. It doesn't change the technical requirements of the job itself, but predictable access does mean less contingency time needs building into a visit, and it makes coordinating a delivery with an installation date more reliable than on a property with a difficult final approach. We still confirm any specific parking or loading restriction on the immediate street before a job, since a fast main road doesn't guarantee easy stopping right outside the property.

Plume management kits for restricted flue positions

Where the ideal, shortest flue route would discharge too close to a boundary, a window, or onto a neighbouring property — a common constraint on tight plots in Larkhall — a plume management kit extends the flue's discharge point away from the boiler's own wall penetration, directing the visible water vapour plume and flue gases to a compliant location instead. It adds ductwork and sometimes a small additional fan to overcome the extra resistance, and it has to be specified against the specific boiler's approved kit range rather than improvised, since flue certification only covers tested combinations. It's a legitimate way to fit a boiler on a plot where the compliant flue route and the sensible boiler location aren't the same wall, without compromising on clearances to solve it.

Pumped-oil versus gravity feed: does it matter?

Older oil systems sometimes still rely on gravity feed, where the tank sits higher than the burner and oil flows down to it under its own weight; a pumped system uses the burner's internal pump to draw oil up from a tank at any level, including below the boiler. Gravity feed limits where a tank can be sited and is more prone to airlocks if the line runs dry, while a pumped system is more flexible on tank position but needs the pipe run and lift height kept within the burner pump's rated capacity — usually no more than a few metres of lift and a set maximum run length. When we replace an oil boiler we check which type the existing tank and pipework support before assuming a straight swap, because a tank sited for gravity feed may need repositioning or a different pump to suit a modern burner.

What voids or protects a Worcester Bosch extended guarantee

Worcester Bosch's longer guarantee periods on qualifying installations are conditional on the boiler being installed and commissioned by an Accredited Installer, on an annual service being carried out (by any Gas Safe registered engineer, not necessarily the original installer) within the required window each year, and on system water quality being maintained to the standard set out in their published guidance — meaning a system flush at installation, correct inhibitor dosing, and in hard water areas a scale reducer or filter as specified. Missing a single annual service, or installing without the required water treatment, can reduce cover back to the manufacturer's standard guarantee period even if the boiler itself has had no faults. Keeping the Benchmark record and service history together is what lets a claim be assessed quickly if it's ever needed.

Heating systems in shared student and let properties

Properties let to multiple students or sharers around Larkhall see heavier and less consistent hot water demand than a single-family household — several showers in quick succession most mornings rather than staggered use through the day — which makes cylinder or combi sizing based on family occupancy figures unreliable. HMO licensing conditions, where they apply, can also set specific requirements around heating provision and appliance safety beyond the standard landlord gas safety record. Controls matter too: a programmable thermostat that tenants can't easily override into leaving heating running constantly, or a system that's simple enough not to generate repeated call-outs over misunderstanding the controls, saves both fuel costs and avoidable landlord admin. We size and specify let properties against realistic occupancy patterns rather than a single-family default.

What different boiler noises usually mean

A kettling or rumbling sound from a boiler is most often scale or sludge build-up on the heat exchanger causing localised boiling as water is trapped and overheated in restricted channels — the heating equivalent of a kettle furring up. A banging or knocking sound in pipework, sometimes called water hammer, is usually caused by a valve closing too quickly or trapped air rather than the boiler itself. A whining or humming sound tends to point to the circulating pump, either from wear or from air in the system reducing lubrication at the bearing. Diagnosing correctly from the noise alone isn't reliable enough to act on without checking system pressure, inhibitor condition and the pump directly, but the noise itself is a useful first indicator of which of those to check first.

Do you need listed building consent for a new flue?

Whether a new boiler flue on a listed building in or around Larkhall needs formal listed building consent depends on whether the work affects the building's special architectural or historic character — cutting through an original stone wall or a decorative elevation is far more likely to need consent than routing through a later, non-original extension. Consent has to be granted before the work starts; carrying it out first and applying afterwards is a criminal offence under the Planning (Listed Buildings and Conservation Areas) Act, not just a paperwork formality to tidy up later. We recommend checking with the local planning authority's conservation team at the quoting stage on any listed property, because the answer varies by building and by exactly which wall is proposed, and getting it wrong can mean expensive remedial work to satisfy the authority afterwards.

Other boiler services in Larkhall

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