Winner — Wales Energy Efficiency Awards 2026Boiler Installer & Heating Contractor of the Year
See Our Wales Award
Special Commendation — UK National Energy Efficiency Awards 2026Boiler Installer & Heating Contractor of the Year
View certificate (opens in a new tab)See Our National RecognitionBoiler brands we install
Explore the ranges. We recommend the right boiler for your home following an assessment.
Boiler services for homes in Llandeilo
For homes around Ammanford, Carmarthen and Llandeilo, we focus on the cause of the problem and the performance of the whole system before recommending repair or replacement.
Boiler installation Llandeilo
A clear installation scope for Llandeilo homes, with the selected boiler and supporting work explained in advance.
Boiler repair Llandeilo
Boiler Diagnostic & Repair£85inc. VAT
Structured fault finding to identify the likely cause, followed by an explanation of repair choices and costs.
Boiler servicing Llandeilo
Boiler Servicing£85inc. VAT
Planned servicing intended to support safe operation, reliability and relevant manufacturer warranty requirements.
SwiftHeat UK Group Ltd · Whole-home thinking
Heating, solar & whole-home energy in Llandeilo.
One improvement or a longer-term plan: our expertise brings heating, electricity generation, storage and hot water into the same conversation. We assess your existing system, comfort, energy use and budget before recommending the next step.
Care for what you have
Gas, oil & LPG heating
Installation, servicing, fault diagnosis and system upgrades across gas, oil and LPG. We assess the appliance, fuel supply, pipework and controls together, with the appropriate specialists identified for the work.
Explore a different heat source
Heat pumps & hybrid heating
Air source heat-pump planning considers room heat loss, radiators, hot water and outdoor space. Where suitable, we can compare a hybrid arrangement combining a heat pump with a compatible boiler and coordinated controls.
Generate, store and use
Solar PV & battery storage
Explore rooftop solar, solar with storage, adding a compatible battery, and maintenance of existing systems. Roof condition, shading, seasonal generation, electricity use and tariffs shape the proposal.
Compare suitable electric heating
Electric boilers
Electric combi, system and suitable heat-only arrangements assessed around the heating circuit, hot-water demand, electrical capacity and running costs. We compare the complete proposal with other suitable heating options.
Match supply to daily life
Cylinders & electric hot water
Hot-water cylinder assessment and replacement, direct electric unvented storage and compact electric heaters. We consider capacity, recovery, mains supply, available space and the requirements of the chosen installation.
Make the system work together
Controls, radiators & underfloor heating
Smart thermostats, TRVs, zoning, radiator upgrades and underfloor heating, with balancing and system cleaning where needed. We check compatibility and heat delivery so improvements suit the way you use your home.
One home. A connected energy plan.SwiftHeat UK Group Ltd · Assess first. Recommend second.
Whole Home Energy Solutions in Llandeilo.
Bring heating, hot water, solar generation, battery storage and smart controls into one considered plan. We assess how suitable technologies can work together around your property, energy use and budget.
For enquiries around SA19, tell us your full postcode, existing fuel and equipment, and what you want to improve. We can consider suitable combinations or phase the work around your priorities. Availability, responsible installers, relevant certification and aftercare are confirmed in your proposal.
Solar output varies through the year. Batteries have limited capacity, and most homes retain a grid connection. Equipment compatibility, electrical capacity and expected running costs are checked before a combined system is recommended.
Llandeilo homeowner heating guide
Heating advice for Llandeilo's distinctive homes
Llandeilo has colourful historic buildings, larger period homes and rural properties around the Towy valley. Multiple floors and varied room sizes can make a single heating zone inefficient.
We consider zoning, hot-water storage and emitter selection so the system respects the building while giving the household clear control.
Heating-system assessments and upgrades · Radiator improvements · Heating controls
That local property context is considered alongside the boiler, controls, radiator circuit and hot-water pattern, so the advice for a Llandeilo home is grounded in evidence rather than a standard package.
Verified SwiftHeat work and customer evidence
These approved photographs show genuine SwiftHeat UK diagnostics and installations. They are representative workmanship examples and are not presented as projects completed in Llandeilo unless a separate case study below names the town and postcode district.
Approved customer feedback
Experience behind the local service.
These are genuine SwiftHeat UK customer reviews. No location is attributed where the approved source does not provide one.
Tristan successfully completed some works at my son's house so I then requested a new HIVE thermostat quote as our outdated thermostat was faulty.
Read more
Tristan was very polite and extremely efficient with his communications throughout and when then installing a new one for us!
I therefore have no hesitation in recommending him.
Thank you Tristan
I am really happy with my new boiler
Read more
and the amazing service that you provided 5 star
Our Work • Installation examples
Explore our completed heating projects
Considering heating work in Llandeilo? Explore examples completed elsewhere in South Wales. These are examples of our installation work, with each project's actual location clearly identified.
A Navien combi upgrade with wireless controls.
A new NCB300 28kW combi with magnetic filtration, a shock arrestor, complimentary thermostat and five-year manufacturer’s warranty.
View the Penarth, South Wales case study →
A considered Baxi combi installation.
A Baxi 800 30kW combi with MagnaClean protection, complimentary wireless controls, ten-year manufacturer’s warranty and twelve-month installation guarantee.
View the Cardiff, South Wales case study →Planning a heating visit in Llandeilo
Send the full postcode, property type and any parking or access restrictions. The SA19 districts are a guide; we confirm the actual address and appointment availability.
Share the make, model and visible fault code if known, or a photograph taken safely without removing covers. Tell us whether you need servicing, fault diagnosis or an installation survey.
Tell us your current fuel, insulation, hot-water needs, available outdoor space and whether a hot-water cylinder is fitted. We assess room-by-room heat loss, radiator suitability and outdoor-unit siting before recommending a suitable system.
Read the heat-pump assessment guideFull information, one authoritative source
Essential SwiftHeat UK guides for Llandeilo
These concise summaries point to the central pages where current terms, qualifications and full service details are maintained.
0% options for eligible installations
Eligible boiler installations from SwiftHeat UK Group Ltd may have repayment options of 3 months, 6 months, 9 months or 12 months through Humm Group Limited. 0% finance is subject to eligibility, approval and provider terms. Any applicable deposit, fees, repayment conditions and total payable are explained during your enquiry/application. Review the terms supplied before applying.
Explore an air source heat pump for your Llandeilo home.
The right heat-pump conversation begins with the fabric and heating demand of the home. For Llandeilo households, that means reviewing heat loss, radiator output, controls and hot water before equipment is selected. Current Boiler Upgrade Scheme support is subject to the property, technology, MCS and scheme eligibility rules.
The Boiler Upgrade Scheme offers £7,500 towards an eligible air-to-water heat pump in England or Wales. Qualifying homes currently heated by oil or LPG, with no mains-gas connection, may receive an additional £1,500 (£9,000 in total) until March 2027. An MCS-certified installer must confirm eligibility and apply on your behalf; approval is not guaranteed.
Running costs and any savings depend on the property, system design, controls and energy tariff.
Wales’ 2026 heating-contractor winner
SwiftHeat UK won Wales’ Boiler Installer & Heating Contractor of the Year 2026, alongside Highly Commended and Commended honours, and received a Special Commendation in the national Boiler & Heating Installer and Contractor of the Year category.
Cardiff City benefits and Disability Confident
SwiftHeat UK Group Ltd is Disability Confident Committed. Eligible Cardiff City season-ticket holders can also receive 15% off qualifying new boiler installations and boiler servicing under the current published offer terms.
Local heating questions
Boiler and heating FAQs for Llandeilo
Do you cover both Llandeilo and the surrounding Carmarthenshire communities?
The local guide covers SA19 and helps customers in Ammanford, Carmarthen, Llandovery and Cross Hands reach the same SwiftHeat UK team. Providing the complete postcode prevents assumptions about the exact travel area.
What should be assessed before replacing a boiler in a Llandeilo home?
Llandeilo has colourful historic buildings, larger period homes and rural properties around the Towy valley. Multiple floors and varied room sizes can make a single heating zone inefficient. We consider zoning, hot-water storage and emitter selection so the system respects the building while giving the household clear control. In larger period homes, identify seldom-used rooms and comfort priorities before deciding how many control zones are worthwhile.
Can SwiftHeat UK assess the whole system before quoting in Llandeilo?
A member of the team reviews the Llandeilo postcode, requested service and information supplied about the home. Survey findings, household demand and the condition of the connected system then define any proposed work, including for enquiries from nearby Llandovery.
How do I choose between annual care and fault diagnosis in Llandeilo?
In Llandeilo, a working boiler due for routine care belongs under servicing. A boiler showing a fault, losing pressure or failing to provide heat or hot water should begin with diagnostics. Replacement enquiries from Ammanford and nearby communities use the installation route and remain subject to survey and final specification.
Local service coverage
Serving Llandeilo and nearby communities
Our Llandeilo service area is centred on SA19 and includes homes throughout Carmarthenshire, with nearby coverage around Ammanford, Carmarthen, Llandovery, Cross Hands. If your location is not listed, contact us—SwiftHeat UK works across Wales and throughout the UK.
Browse all Areas We Cover →
Gas Safe registered business978273
- Wales’ Boiler Installer & Heating Contractor of the Year 2026
- Gas, Oil and LPG boiler expertise
- Air source heat-pump assessment and installation
- Domestic & Commercial Heating • Plumbing • Engineering
- Manufacturer warranties from 5–12 years on eligible boilers
- 0% finance options, subject to eligibility and terms
Assess first. Recommend second.
One home.Your system, reviewed as a whole.
Tell us what is happening at your Llandeilo property and what outcome you want. Mention the boiler, controls or rooms affected; our team will review the detail and contact you with a sensible next step for your home in Carmarthenshire.
- 1Send a few details about your boiler, heating system or project.
- 2A member of the SwiftHeat UK team will contact you using your preferred method.
- 3Receive considered advice and a clear quotation for your Llandeilo property.