Will a modern boiler heat a cottage properly?

Yes — provided it's sized on real heat loss including the stone-wall U-values. Undersized boilers in cottages fail to reach setpoint on cold evenings; we size properly.

Can I keep the open fire?

Absolutely. The boiler and the fire are independent — we just need to ensure any solid-fuel appliance has its own compliant flue and CO alarm.

How disruptive is the install?

One to two days. Coring is the noisy part; the rest is quiet plumbing.

Boiler solutions for real Somerset homes

Hand-written guidance for the specific jobs we get asked about most — from Worcester accredited installs and Grant Vortex oil swaps to landlord CP12s, fault-code diagnostics and same-day boiler replacements.

07516 118198 Free quote

Accredited installer
Worcester Bosch Accredited Installer covering Bath & Radstock
Accredited Worcester Bosch installer in Bath, Radstock & Somerset. Up to 10-year guarantees on Greenstar combi, system and oil boilers.
Off-grid heating
Grant Vortex oil boiler installation across rural Somerset
OFTEC-registered Grant Vortex oil boiler installs across Mendip, Chew Valley & Wells. Blue-flame burners, low NOx, 10-year cover.
Tank replacement
Oil tank replacement in Radstock (BA3) — bunded, compliant, tidy
Bunded oil tank replacement in Radstock and BA3 villages. OFTEC compliant, correct clearances, old tank removed and disposed.
Old-system swap
Back-boiler removal and combi conversion in Somerset homes
Safe back-boiler decommission and full combi conversion. Chimney sealing, gas-line upgrade, radiator flush and building notice included.
Kitchen-boiler swap
Rayburn and Aga replacement across Somerset farmhouses
Replacing an oil-fired Rayburn or Aga central-heating cooker with a modern boiler. Kitchen made good, heating rebalanced, hot water sorted.
LPG conversion
LPG boiler installation for off-grid Somerset homes
LPG combi and system boiler installs for off-mains-gas homes. Tank siting, regulator sizing and safe changeover from oil handled end-to-end.
Hot-water upgrade
Unvented cylinder installation in Bath — mains-pressure hot water
G3 registered unvented cylinder installs in Bath. Mains-pressure hot water to every tap, tundish and discharge routed correctly.
Period property
System boiler upgrade for a Victorian terrace in Bath
System boiler and unvented cylinder upgrades in Bath's Victorian terraces. Flue routing, pipe upgrades and old-microbore replaced.
Listed & conservation
Combi boiler installation in a Georgian Bath townhouse
Combi boiler installs in Georgian Bath townhouses. Conservation-aware flue routing, listed-building considerations and pressure balanced.
Listed buildings
New boilers in listed buildings — Bath and surrounds
Boiler installs in Grade I and Grade II listed homes across Bath. Conservation-friendly flue routing and Listed Building Consent guidance.
Landlord service
Boiler installation for landlords across Somerset
Landlord-focused boiler installs across BA and BS postcodes. Fast tenant-friendly turnaround, CP12 issued on completion.
HMO compliance
HMO gas safety and boiler servicing in Bath
HMO-specific gas safety checks and annual boiler services in Bath. Multi-appliance CP12, tenant notice handled, licence-ready paperwork.
Void-day minimiser
Rental property boiler swap in Radstock — fast turnaround
Same-week rental boiler swaps in Radstock and BA3. Tenant-friendly install, CP12 issued, guarantee registered to the landlord.
Short-let compliance
Holiday let boiler servicing in Somerset
Annual servicing for Somerset holiday lets between bookings. Boiler, hot water and heating checked. CP12 issued for booking-platform compliance.
Rural specialist
Farmhouse oil boiler replacement across the Mendips
Oil boiler replacements in Mendip farmhouses. External Vortex swaps, long-run oil-lines rerouted, cylinder and tank compliance handled.
Chew Valley cottages
Cottage boiler upgrades in the Chew Valley
Boiler upgrades in Chew Valley cottages. Thick-wall flueing, oil and LPG expertise, low-disruption installs for stone-built homes.
Conversion projects
Barn conversion heating systems across Somerset
Full heating systems for Somerset barn conversions. Sized for open volumes, underfloor-friendly, oil/LPG/heat-pump ready.
New build
New-build boiler first-fix and commissioning in Somerset
First-fix, second-fix and commissioning for new-build homes in Somerset. Sized for Building Regs and integrated with builder's programme.
Budget guidance
Affordable boiler replacement alternatives in Somerset (2026)
Straight-talking guidance on paying for a new boiler in Somerset — finance, staged upgrades and honest priorities when budget is tight.
System restoration
Boiler power flush in Bath and Radstock
Full magnetic power flush for gas and oil systems in Bath and Radstock. Cold radiators, black water and pump wear fixed properly.
System protection
Magnetic system filter installation across Somerset
Inline magnetic system filters (MagnaClean, Fernox TF1, Adey) fitted across Somerset. Boiler warranty preserved, sludge captured.
Controls upgrade
Smart thermostat installation in Bath — Hive, Nest and Tado
Hive, Nest and Tado smart thermostat installation in Bath. Boiler-compatible wiring, OpenTherm where supported, app set up.
Efficiency upgrade
Weather compensation controls for Somerset heating systems
Outdoor-sensor weather compensation for Worcester, Vaillant and Ideal boilers across Somerset. Lower running costs, gentler heat.
Hot-water fault
No hot water? Same-day boiler repair in Bath
Same-day fix for no-hot-water boiler faults in Bath. Diverter valves, PCBs, DHW sensors, pumps — genuine parts, honest repair vs replace advice.
Pressure fault
Boiler losing pressure? Repair across Somerset
Diagnosing a pressure-losing boiler in Somerset. Expansion vessels, PRVs, hidden leaks, and radiator seepage traced and fixed.
Leak diagnosis
Boiler leaking water? Repair in Bath
Water leaking from a boiler in Bath — diagnosis and repair. Heat exchangers, PRVs, auto air-vents and pump seals traced same-day.
Noise diagnosis
Noisy or kettling boiler — repair across Somerset
Kettling, banging and whining boilers repaired across Somerset. Descaling, flushing and pump replacement without unnecessary swaps.
Old-boiler fault
Pilot light keeps going out — repair for older boilers
Old-style pilot light going out? Diagnosis and repair of thermocouples, gas valves and flame sensors across Somerset.
Brand specialist
Worcester Bosch fault code diagnostics in Bath
Fault code diagnostics for Worcester Bosch Greenstar boilers in Bath. EA, D5, H07 and common codes explained and fixed.
Brand specialist
Vaillant fault code diagnostics across Somerset
Vaillant ecoTEC and ecoFIT fault code diagnostics across Somerset. F.22, F.28, F.75 and PWM pump codes fixed same-visit where possible.
Brand specialist
Ideal Logic and Vogue boiler repair in Bath
Ideal Logic, Logic+ and Vogue combi boiler repair in Bath. Diverter valves, PRVs, fans and PCBs — genuine parts on the van.
Oil specialist
Grant Vortex fault diagnostics across Somerset
Grant Vortex oil boiler faults diagnosed across Somerset. Photocell, pump pressure, nozzle wear and control-box faults resolved.
Oil servicing
Annual oil boiler service across the Mendips
OFTEC oil boiler servicing across Mendip. Burner strip, new nozzle, combustion set with analyser, OFTEC record card issued.
Gas servicing
Annual gas boiler service in Bath
Full annual gas boiler service in Bath. Manufacturer-spec inspection, combustion analyser reading, and Gas Safe record issued.
Landlord compliance
CP12 landlord gas safety certificate — Radstock
CP12 landlord gas safety certificates in Radstock. Combined service option, tenant liaison, PDF cert same day.
Property buyer
Pre-purchase boiler inspection across Somerset
Independent pre-purchase boiler inspection across Somerset. Age, condition, remaining life and honest replace-or-keep advice.
Safety-first visit
Carbon monoxide safety check in Bath
Carbon monoxide safety check in Bath. Flue integrity, ventilation, alarm placement and appliance combustion tested.
Compliance fix
Flue relocation and extension in Bath
Boiler flue relocation and extension in Bath. Compliance-friendly routing, plume management, listed-building sensitivity.
Winter fault
Frozen condensate pipe — fix and prevention across Somerset
Frozen condensate pipes fixed and permanently rerouted across Somerset. Boiler back on same day, insulated to prevent recurrence.
System restoration
Central heating power flush in Radstock
Full central heating power flush in Radstock. Cold radiators, sludge and pump wear resolved with photo evidence before/after.
Emitter upgrade
Radiator replacement and balancing in Bath
Radiator upgrades and full system balancing in Bath. Correctly-sized emitters, TRV upgrades and even room temperatures.
Mixed-emitter
Underfloor heating and boiler integration in Somerset
UFH manifold, blending valves and boiler-integration work across Somerset. Mixed rad and UFH systems balanced properly.
Hot-water upgrade
Hot water cylinder replacement across Somerset
Copper, unvented and thermal-store cylinder replacements across Somerset. G3 registered, correctly sized, airing cupboards reworked cleanly.
System swap
Thermal store to combi conversion — Somerset
Converting a thermal store or open-vent system to a modern combi across Somerset. Plate exchangers removed, mains-pressure hot water restored.
Large-home specialist
Boiler sizing for large 4-bathroom homes in Bath
System and cylinder sizing for 4-bathroom Bath homes. Simultaneous-demand modelling, high-output pumps and correct pipework.
Compact fit
Small flat combi boiler installation in Bath
Compact combi installs for flats and studios in Bath. Space-saving cupboard fits, cored flues and mains-pressure hot water.
Relocation project
Oil boiler relocation — external to internal (or vice versa)
Relocating an oil boiler across Somerset — external to internal, or internal to external. OFTEC oil-line, flue and ventilation handled.
Fuel conversion
Converting from oil to gas across Somerset
Oil to mains gas conversion across Somerset. Tank decommissioning, gas connection coordination, and modern combi or system install.
Emergency response
Emergency out-of-hours boiler callout in Bath
Emergency evening and weekend boiler callouts in Bath. Gas Safe, honest triage, and fixed same-day where parts allow.
Fast install
Same-day boiler swap in Radstock (BA3)
Same-day like-for-like boiler swap in Radstock. Stocked local, installed by lunchtime where possible, guarantee registered.

Worcester Bosch Accredited · 10 Year Guarantee*

New Worcester boiler with a 10 year guarantee*

Free no-obligation quotes for installation, servicing & repairs across BA & BS postcodes.

07516 118198 Request a Quote