
Winner — Wales Energy Efficiency Awards 2026Boiler Installer & Heating Contractor of the Year
See Our Wales Award
Serving Ystrad Mynach • CF82 • Caerphilly & Blaenau Gwent
Ystrad Mynach connects communities across the Rhymney Valley, from Nelson and Caerphilly to Bargoed and Blackwood. Its varied housing calls for property-led advice, especially where extensions, conservatories or later radiator additions have changed the demand placed on the original system. SwiftHeat UK offers boiler installation, servicing, repairs and heating-system assessments here. Send your full postcode so we can confirm availability for the work you need.

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.
We treat the boiler as one part of the home. Pipework, emitters, controls and hot-water requirements are reviewed together so the recommendation makes sense for the complete system.
New boiler advice that balances reliable hot water, comfortable rooms, available space and long-term use.
Technical checks supported by plain-English advice on the sensible next step for the boiler and system.
Careful annual checks, operating measurements and practical advice on looking after the heating system between visits.
SwiftHeat UK Group Ltd · Whole-home thinking
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.

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.

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.

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.

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.

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.

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.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 CF82, 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.
Ystrad Mynach homeowner heating guide
Ystrad Mynach includes older valley homes, semi-detached properties and newer developments serving the wider Rhymney valley. Family hot-water patterns can be as important as space-heating demand.
We assess bathrooms, showers, occupancy and future alterations before recommending boiler type and output, then match controls to the way the home is occupied.
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 Ystrad Mynach home is grounded in evidence rather than a standard package.
These approved photographs show genuine SwiftHeat UK diagnostics and installations. They are representative workmanship examples and are not presented as projects completed in Ystrad Mynach unless a separate case study below names the town and postcode district.
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.
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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!
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Will definitely use the company again!
Our Work • Installation examples
For customers considering heating work in Ystrad Mynach, these nearby projects show examples of our installations. Each card identifies where the work was completed.

An older combi replaced with a Worcester Bosch Greenstar 4000 30kW, Hive V4 controls and a ten-year manufacturer warranty.
View the Pontllanfraith, Blackwood case study →Send the full postcode, property type and any parking or access restrictions. The CF82 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
These concise summaries point to the central pages where current terms, qualifications and full service details are maintained.
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.
Every home has a different route to lower-carbon heating. We review the existing system and expected demand, then help establish whether an air source heat pump merits a detailed MCS assessment. 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.
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.
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
SwiftHeat UK uses CF82 as the main Ystrad Mynach postcode coverage, alongside the surrounding communities of Bargoed, Blackwood, Caerphilly and Nelson. A full postcode is always checked because boundaries and travel requirements vary.
Ystrad Mynach includes older valley homes, semi-detached properties and newer developments serving the wider Rhymney valley. Family hot-water patterns can be as important as space-heating demand. We assess bathrooms, showers, occupancy and future alterations before recommending boiler type and output, then match controls to the way the home is occupied. Two bathrooms used at similar times may favour stored hot water where the mains supply and available space allow it.
For an enquiry from CF82, 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 Ystrad Mynach property.
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 Ystrad Mynach and nearby communities.
Local service coverage
Our Ystrad Mynach service area is centred on CF82 and includes homes throughout Caerphilly, with nearby coverage around Bargoed, Blackwood, Caerphilly, Nelson. If your location is not listed, contact us—SwiftHeat UK works across Wales and throughout the UK.
Browse all Areas We Cover →
Assess first. Recommend second.
Tell us what is happening at your Ystrad Mynach 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 Caerphilly.