From £1,790
New boiler
A surveyed installation, carefully specified for your home and hot-water demand.
Heating & plumbing for your home
What do you need today?
Choose the help you need in Cardiff and South Wales. Boiler installation and whole-home energy enquiries are also welcome from across the UK.
£85 inc. VAT
Boiler service
Planned safety, condition and performance checks with straightforward feedback.
£85 inc. VAT
Boiler fault
Evidence-led diagnostics before parts are replaced, with repair costs agreed first.
Grants available
Heat pump
A whole-home assessment covering heat loss, emitters, hot water and grant eligibility.
Find My Boiler
A simpler way to narrow down the right boiler.
Answer six simple questions about your home. No technical knowledge needed. Get a clearer starting point before a SwiftHeat assessment.
Start Find My Boiler
No obligation · takes a few minutes
Awards & recognition
Award-winning in Wales. Recognised nationally.
Winner of Wales’ Boiler Installer & Heating Contractor of the Year 2026, with a Special Commendation at the national awards. Explore the honours, photographs and certificate.
Three honours • Wales Energy Efficiency Awards 2026
Winner — Wales’ Boiler Installer & Heating Contractor of the Year 2026
Winner
Wales Energy Efficiency Awards ·
View our Wales recognition
National Energy Efficiency Awards 2026
Special CommendationNational Boiler & Heating Installer and Contractor of the Year 2026
UK national recognition
Celebrating engineering, care and accountability.
National recognition • 2026
Our Special Commendation certificate
Presented to SwiftHeat UK Group Ltd at the national awards ceremony in Birmingham on .
View the certificateMore ways we can help your home.
Our Work. Your Confidence.
Explore boiler installations, conversions and heating upgrades across Wales and the UK, including Oxford, Colchester and Barnsley. Choose a project for its specification and aftercare.
Ynysbwl · 7 October 2026
Back-boiler conversion in Ynysbwl
A back-boiler conversion bringing together a new Worcester Bosch combi, cylinder removal, Hive controls and radiator improvements.
View case study →
Nantyglo, South Wales · 7 October 2025
An Ideal combi with complimentary controls.
An Atlantic C24 24kW installation with a wireless programmable thermostat, five-year Ideal Heating warranty and twelve-month SwiftHeat UK installation guarantee.
View case study →
Treherbert, South Wales · 1 April 2026
A rental-property upgrade with system care.
An Ideal Atlantic C24 24kW replacement with new pipework and vertical flue, system cleaning, complimentary controls and landlord documentation.
View case study →
Penarth, South Wales · 5 August 2026
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 case study →
Oxford, Oxfordshire · 19 July 2026
A considered replacement for a landlord.
An ageing Potterton replaced with a Greenstar 1000 24kW combi, magnetic protection, wireless controls, five-year warranty and CP12 certificate.
View case study →
Cardiff, South Wales · 3 September 2026
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 case study →
Aberdare, South Wales · 12 December 2025
A new location. A wider heating upgrade.
An Ideal Atlantic C24 24kW combi relocated to the kitchen, with wireless controls, upgraded gas pipework, radiator improvements and five-year manufacturer’s cover.
View case study →
Treharris, South Wales · 2 July 2025
A combi upgrade with Hive V4 controls.
A Greenstar 1000 30kW replacement with a magnetic filter, shock arrestor, vertical roof flue and five-year manufacturer’s warranty.
View case study →
Llanharan, South Wales · 18 January 2026
Heating and hot water restored.
A failed boiler replaced with an Ideal Atlantic C30 30kW combi, five-year parts and labour warranty and twelve-month SwiftHeat UK installation guarantee.
View case study →
Cardiff · Installation showcase
High-efficiency boilers. Specified for your home.
Watch our installation approach and explore correctly specified boilers, clear quotations, aftercare and qualifying Care+ benefits.
View case study →
Colchester, Essex · 28 April 2026
Heat-only installation. Stored hot water.
An Ideal Logic Max 24kW boiler serving an unvented, pressurised hot-water cylinder, with a ten-year manufacturer’s warranty.
View case study →
Barnsley, South Yorkshire · 30 March 2026
A landlord upgrade. Documented care.
An Ideal Classic C24 24kW combi installation with complimentary wireless controls, system protection, five-year manufacturer’s warranty and landlord certification.
View case study →
Whitchurch, Cardiff · 26 March 2026
A Baxi upgrade. Protection built in.
A failing Main boiler replaced with a Baxi 830 30kW combi, chemical system flushing, existing Hive V4 controls and a ten-year manufacturer’s warranty.
View case study →
Bridgend · 9 October 2026
A new combi. Clear control. Local care.
A Vaillant ecoFIT pure 30kW combi installation with a complimentary wireless programmable thermostat and a standard three-year manufacturer’s warranty.
View case study →
Newport · 14 September 2026
Precision you can see. Care that continues.
A Greenstar 4000 30kW combi replacement with Hive Mini, magnetic filtration, a ten-year manufacturer guarantee and two complimentary annual services.
View case study →
Pontllanfraith, Blackwood · 21 August 2025
A modern combi. A considered upgrade.
An older combi replaced with a Worcester Bosch Greenstar 4000 30kW, Hive V4 controls and a ten-year manufacturer warranty.
View case study →
Abertillery · 20 December 2025
A heating conversion. A more considered home.
A tank-fed back-boiler conversion with a Worcester Bosch Greenstar 1000 combi, Hive controls, designer radiators and cloakroom improvements.
View case study →
Monmouth · 5 March 2026
A considered upgrade. A warmer home in Monmouth.
A Greenstar 8000+ Style 32kW replacement with an upgraded gas supply, power flushing, twelve-year manufacturer cover and two complimentary annual services.
View case study →
Pencoed · 28 August 2026
A new combi. Familiar controls. Long-term confidence.
A failing combi replaced with a Worcester Bosch Greenstar 8000 40kW, with magnetic filtration, existing Tado controls and a twelve-year manufacturer guarantee.
View case study →
Glyncoch, Pontypridd · 3 September 2026
Assessment first. A considered replacement.
An ageing Baxi Duo-Tec assessed as beyond economical repair, replaced with a Viessmann Vitodens Classic 28kW combi and ADEY MagnaClean protection.
View case study →
Pontypool, South Wales · Installation showcase
Ideal Atlantic C24 24kW combi installation
Watch the Pontypool project film for a closer look at the Ideal Atlantic C24, copper pipework and magnetic filtration.
View case study →Confidence in your heating. Confidence in your team.
- Award-winningWales heating contractor · 2026Our recognition
- Gas Safe registeredBusiness registration 978273Meet SwiftHeat UK
- 0% financeHumm · 3, 6, 9 or 12 monthsFinance options
- Up to 12 yearsSelected boiler warrantiesExplore warranties
- 100% recommendAcross 32 Facebook reviewsCustomer reviews
Finance subject to approval and provider terms. Warranty length depends on the boiler and installation package; manufacturer terms apply.
Heating • Hot water • Solar • Home energy
Multi-technology heating & energy expertise
Explore heating, hot water and energy solutions for your home. Choose a service to find out more.
- Advice for your home
- Installation
- Servicing & repairs
- Explore gas heating
Gas
Reliable, efficient heating solutions
- Explore oil heating
Oil
Expert installation, servicing & repairs
- Explore LPG heating
LPG
Flexible heating for off-grid homes
- Explore heat pumps
Air Source Heat Pumps
Lower-carbon heating for the future
- Explore solar power
Solar Power
Solar panels and battery storage, designed around your home.
- Explore hot-water solutions
Electrical Hot Water Solutions
Electric hot-water cylinders and controls, assessed around your needs.
- Explore whole-home energy
Whole Home Energy Solutions
Bring heating, hot water, solar and storage together in one considered plan.
Keeping Homes Warm Across Wales & the UK
Boiler fault or pressure problem?
Find guidance for the exact model before taking any action. These guides explain what to record and when to contact an engineer.
Assess First. Recommend Second.
Clear advice.
A confident next step.
From your first conversation to careful handover.
We look at what your home needs, explain the options and agree the work with you.
Meet SwiftHeat UK- 01Tell us what you need
Share the problem, your plans and how your home uses heating and hot water.
- 02Understand your options
We assess the system and explain the suitable options, scope and costs before you decide.
- 03Agree the work. Feel supported.
After you approve the work, we install or repair carefully, test the system and explain handover and aftercare.
Your decision, with clear information. No unnecessary complexity.
Talk to our teamCUSTOMER REVIEWS
Trusted from first call to final handover.
Clear advice matters. So do punctuality, tidy workmanship and support after the installation. Explore review highlights from customers across Wales and the UK.
View SwiftHeat UK Group Ltd on Google · Share your experience on Google
Real homes • Wales & the UK
Warmth starts at home.
Expert heating care, delivered with respect for your home.★★★★★
“From initial quotation to full installation of our new combi boiler — just two days. Excellent service from start to finish.”
★★★★★
“Communication was spot on from start to finish. Even from hundreds of miles away, it felt like I was on site.”
Explore 30 named review highlights
Facebook currently shows 32 reviews. Browse the published excerpts, then open Facebook for the complete set.
1–3 / 32
REAL CUSTOMERS. REAL EXPERIENCES.
There is no stronger endorsement of our work than hearing directly from the people who have trusted SwiftHeat UK Group Ltd in their homes and properties.
These customers explain, in their own words, what it was like choosing SwiftHeat UK — from the first conversation through to installation, certification and ongoing aftercare.
Clare Francis
Homeowner Testimonial
“Several jobs completed to perfection, with a reasonable quotation and no hidden extras.”
Clare shares her experience of choosing SwiftHeat UK for her home, from a clear quotation through to professional installation and ongoing support.
View Clare’s Installation Details
SwiftHeat UK supplied and professionally installed a Worcester Bosch Greenstar 8000+ Style 40kW Combi Boiler with a 10-Year Manufacturer Warranty.
Also provided:
- 12-Month Installation Guarantee
- Gas Safe registered installation
- Building Regulations certification
- Integration of the customer’s Tado heating controls
- Ongoing aftercare and support
Mr. Wazir Ausalut
Landlord Customer Testimonial
“100/100 service.”
Wazir shares his experience of an installation managed hundreds of miles away, with clear communication and regular updates that made him feel on-site.
View Wazir’s Installation Details
SwiftHeat UK supplied and professionally installed an Ideal Atlantic C24 24kW Combi Boiler with a 5-Year Manufacturer Warranty.
Also provided:
- 12-Month Installation Guarantee
- Gas Safe registered installation
- Building Regulations certification
- Programmable wireless thermostat
- Regular project updates
- Ongoing aftercare and support
Wazir’s verdict:
- “100/100 service.”
- “Trustworthy, reliable and deliver exactly what they promise.”
- “Highly recommended.”
WHY CUSTOMERS CHOOSE SWIFTHEAT UK
- Honest, straightforward advice
- Clear communication from start to finish
- Professional and respectful workmanship
- Heating solutions designed around the customer
- High standards without compromise
- Support beyond the installation
Your property is in safe hands with SwiftHeat UK.
READY TO EXPERIENCE THE SWIFTHEAT UK DIFFERENCE?
Cardiff City season ticket holder offer
15% off
Cardiff City Football Club season ticket holders receive 15% off qualifying new boiler installations and boiler servicing from SwiftHeat UK.
Claim your 15% discountOffer eligibility & terms
- A valid Cardiff City FC season ticket must be shown before the quotation or service booking is confirmed.
- The offer applies to the eligible season ticket holder’s principal residential property.
- The 15% discount is calculated against SwiftHeat UK’s standard price.
- It cannot be combined with the advertised “from £1,790” boiler offer, the Care+ package, or any other discount or promotion.
- Where more than one offer is available, SwiftHeat UK will apply the eligible offer that provides the greatest saving.
- Boiler installations remain subject to survey, product choice, property requirements and availability.
SwiftHeat UK Group Ltd · Proudly associated with Cardiff City Football Club
Proudly backing the Bluebirds. Committed to Cardiff.
SwiftHeat UK Group Ltd is proud of our association with Cardiff City Football Club, with our brand showcased across the LED display system on all three sides of Cardiff City Stadium.
For us, this association means far more than matchday visibility. It reflects our genuine commitment to the club, its passionate Bluebird supporters, the city of Cardiff and the wider community that Cardiff City Football Club brings together.
As a growing Welsh heating business, we are proud to give something meaningful back through exclusive supporter benefits, trusted heating expertise and dependable service that helps keep local homes warm, efficient and comfortable.
Visiting Cardiff City Stadium with your team? Our South Wales business provides boiler installations and whole-home energy solutions across the UK. Explore our coverage.
One club. One city. One community.
Featured in our Cardiff City information video
The right boiler.
The right fit.
We choose the boiler around your home, hot-water demand and priorities — then install it with the care, clarity and finish you should expect from SwiftHeat.
- Clear recommendations based on your property
- Neat installation with system protection considered
- Controls, warranty and handover explained properly
Hive Mini included
Plus your first two annual boiler services.
Boiler manufacturers we install
Leading brands, selected around your home.
Flexible ways to pay with Humm
0% interest finance for your new boiler.
Spread the cost of an eligible SwiftHeat boiler installation over 3, 6, 9 or 12 months with finance provided by Humm Group Limited. Apply directly with Humm after your survey, specification and SwiftHeat charges have been explained.
3 months0% interest · subject to approval
6 months0% interest · subject to approval
9 months0% interest · subject to approval
12 months0% interest · subject to approval
Important information: 0% finance options over 3, 6, 9 and 12 months are subject to eligibility, approval and provider terms. Any applicable deposit, fees, repayment conditions and total payable will be explained during your enquiry/application. Approval is not guaranteed. Consider affordability and review the terms supplied before applying.
PROUD TO BE DISABILITY CONFIDENT COMMITTED
SwiftHeat UK is proud to be a Disability Confident Committed employer as part of the UK Government’s Disability Confident scheme. This reflects our commitment to inclusion, equal opportunities and supporting disabled people and those living with long-term health conditions.
Air source heat pumps • Cardiff & South Wales
A lower-carbon heating plan starts with the home.
Before equipment is selected, we consider the property’s heat loss, available space, hot-water needs and how each room will emit heat at a lower flow temperature. SwiftHeat UK can guide the early assessment and develop an eligible installation route with our MCS-certified partner.
- Room-by-room heat-loss assessment
- Radiator, cylinder and control review
- System design explained in plain English
News & updates
Latest from SwiftHeat UK Group Ltd.
National recognition, company milestones, Cardiff City supporter news and important heating updates from SwiftHeat UK Group Ltd. Meet the people behind our approach in Who’s Behind SwiftHeat UK?
Cardiff City · Match preview
Molineux Awaits: SwiftHeat UK Backs Cardiff City for Away Success
We’re behind the Bluebirds at Wolves. Read our pre-match thoughts and explore the season-ticket-holder and referral offers.
Read the match preview →
Heating advice
Your Next Boiler Should Do More Than Replace Your Old One
Seven conversations worth having before choosing your next boiler, from hot-water performance to comfort and everyday control.
Read the full article →
Cardiff City • Community
Five goals. One proud city.
Celebrating City’s victory, our Cardiff City association and offers for Bluebirds supporters.
Read the full story →
Boiler or Heat Pump? How to Choose Without the Confusion
Keep your boiler, replace it or switch to a heat pump? SwiftHeat UK explains home suitability, realistic running costs, installation requirements and available funding.
Read full article
Come On, City! SwiftHeat UK Backs the Bluebirds Ahead of Blackburn Clash
SwiftHeat UK celebrates Cardiff City’s 3–1 home win over Charlton and backs the Bluebirds at Blackburn, with an exclusive offer for season ticket holders.
Read full articleSwiftHeat UK Receives Special Commendation at the National Energy Efficiency Awards 2026
SwiftHeat UK receives a Special Commendation at the National Energy Efficiency Awards 2026, proudly represented by Ellie Kinson and Managing Director Tristan Jones.
Read full articleSwiftHeat UK Group Ltd team pictured after winning at the Wales Energy Efficiency Awards 2026.
Named Wales’ Boiler Installer & Heating Contractor of the Year
SwiftHeat UK Group Ltd received three honours at the Wales Energy Efficiency Awards 2026, recognising expertise, customer care and wider support.
Explore our award recognition
A-Rated Boiler? Here’s Why Smart Thermostats and TRVs Still Matter
Already have an A-rated boiler? Discover how smart thermostats and TRVs can help you manage heating, improve comfort and reduce waste—with clear advice on compatibility, potential savings and EPC considerations.
Read full article
Energy price cap rises this October: prepare your heating for winter
Practical autumn heating checks and winter preparation to reduce wasted heating energy.
Read the winter heating adviceSwiftHeat UK Group Ltd team pictured after winning at the Wales Energy Efficiency Awards 2026.
National finalistsSwiftHeat UK Group LtdOur September national finalist announcement9th October 2026 · Hilton Birmingham Metropole
National recognition, powered by your trust.
SwiftHeat UK Group Ltd is incredibly proud to have been named a finalist in two categories at the UK National Energy Efficiency Awards 2026.
UK National Boiler Installer & Heating Contractor of the Year 2026
UK National Fuel Poverty & Vulnerable Customer Support Organisation of the Year 2026
These nominations would not have been possible without every customer who has placed their trust in us.
Explore our national recognition
Proudly associated with Cardiff City Football Club
Our presence across the LED display system on all three sides of Cardiff City Stadium reflects a genuine commitment to the club, Bluebird supporters, Cardiff and the wider community.
Read our Cardiff City storyEnhanced heat-pump support for qualifying off-grid homes
Eligible oil or LPG homes may receive up to £9,000, while standard Boiler Upgrade Scheme support remains £7,500 for other qualifying properties.
Read the full heat-pump grant updateReady when you are
Your home. Your heating. Let’s get it right.
Tell us what you need. We’ll help you understand the next step.
Get a Free Quote
Proud to be associated with Cardiff City Football Club
Ready when you are
How can we help your home?
Tell us what you need and the SwiftHeat team will contact you. No obligation, just clear advice.
Work completed by Gas Safe registered engineersSwiftHeat UK • Reg. No. 978273