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 Haverfordwest
Different homes across Pembrokeshire place different demands on a heating system. We establish what is installed, what is not working well and what outcome you want before pricing the work.
Boiler installation Haverfordwest
Combi, system and heat-only boiler options assessed against the existing heating layout and household requirements.
Boiler repair Haverfordwest
Boiler Diagnostic & Repair£85inc. VAT
Practical repair guidance, including an honest discussion when repeated work may offer poor long-term value.
Boiler servicing Haverfordwest
Boiler Servicing£85inc. VAT
Safety and performance checks for boilers in Haverfordwest, completed with a straightforward service record.
SwiftHeat UK Group Ltd · Whole-home thinking
Heating, solar & whole-home energy in Haverfordwest.
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 Haverfordwest.
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 SA61 and SA62, 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.
Haverfordwest homeowner heating guide
Heating guidance for Haverfordwest and central Pembrokeshire
Haverfordwest serves town properties and a wide rural area where gas, oil and LPG systems all occur. Long service routes and cylinder-based hot water are common considerations outside the centre.
We review fuel availability, storage, controls and emitter output so the proposal fits the property rather than assuming a standard urban solution.
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 Haverfordwest 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 Haverfordwest 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.
Had a new boiler fitted recently with this company and new radiators fitted, would highly recommend.
Read more
I will be having them back to do all my taps for me when my new kitchen is in. :)
★★★★★
Many thanks to Tristan for a brilliant and efficient service!
Read more
Will definitely use the company again!
Our Work • Installation examples
Explore our completed heating projects
Considering heating work in Haverfordwest? 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 Haverfordwest
Send the full postcode, property type and any parking or access restrictions. The SA61 and SA62 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 Haverfordwest
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.
Heat-pump advice built around your Haverfordwest property.
Renewable heating can be a strong option where the property and system are suitable. We explain the survey, design and grant stages clearly so customers around Haverfordwest know what must be checked first. 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 Haverfordwest
Which Haverfordwest postcode districts can SwiftHeat UK attend?
SwiftHeat UK uses SA61 and SA62 as the main Haverfordwest postcode coverage, alongside the surrounding communities of Milford Haven, Narberth, Pembroke and St Davids. A full postcode is always checked because boundaries and travel requirements vary.
How should an older heating circuit in Haverfordwest be checked?
Haverfordwest serves town properties and a wide rural area where gas, oil and LPG systems all occur. Long service routes and cylinder-based hot water are common considerations outside the centre. We review fuel availability, storage, controls and emitter output so the proposal fits the property rather than assuming a standard urban solution. Oil and LPG users should compare storage condition and delivery access alongside the appliance itself when planning an upgrade.
How does SwiftHeat UK decide the right next step for a Haverfordwest home?
For an enquiry from SA61 and SA62, send a concise description of the current system or fault. The team confirms the suitable appointment type and access arrangements, then assesses the boiler together with the connected controls, radiators and hot-water requirements where relevant to the Haverfordwest property.
What help is available when I am unsure which service my Haverfordwest home needs?
SwiftHeat UK supports installation, planned servicing, fault diagnosis and wider heating improvements. The detailed central guides set out the scope, while this page supplies the verified local context for Haverfordwest and nearby communities.
Local service coverage
Serving Haverfordwest and nearby communities
Our Haverfordwest service area is centred on SA61 and SA62 and includes homes throughout Pembrokeshire, with nearby coverage around Milford Haven, Narberth, Pembroke, St Davids. 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.From first question to an agreed solution.
Tell us what is happening at your Haverfordwest 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 Pembrokeshire.
- 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 Haverfordwest property.