Need a Boiler Replacement in Cardiff? Upgrade with Confidence
Energy-Efficient Upgrades by Local Experts
If your heating system is unavailable, inefficient or costing more to run, it may be time for a professional boiler replacement in Cardiff
At SwiftHeat UK, we specialise in replacing outdated, inefficient boilers with modern, energy-efficient systems designed to reduce heating bills and improve long-term reliability. Our Gas Safe registered engineers, provide safe, compliant installations across Cardiff and surrounding CF postcode areas.
From older terraced properties in Roath and Cathays to family homes in Lisvane, Pontprennau and Radyr, we tailor every boiler replacement to suit your property’s heating demand and layout.
We cover CF3, CF5, CF10, CF11, CF14 and all surrounding Cardiff districts.
Why choose SwiftHeat UK for Boiler Replacements in Cardiff? Trusted, Certified Experts.
Replacing a boiler is a long-term investment. Choosing the right installer makes all the difference
What you get from SwiftHeat UK:
- Fully supplied & expertly installed replacement boilers
- Warranties from 5-13 years (Ts&Cs Apply)
- Complimentary wireless thermostat included
- Magnetic filter fitted for system protection
- 12-month installation guarantee
- Gas Safe registered engineers
- Free annual boiler servicing on selected boiler brand manufacturer models (Ts&Cs Apply)
- Free Smart Control (Ts&Cs Apply)
We focus on delivering efficient heating upgrades that improve performance while keeping installations clean, safe and minimally disruptive.
Signs You Need a Boiler Replacement
Many Cardiff homes still operate older boilers that are inefficient by modern standards. You may need a replacement if:
- Your boiler is 12-15+ years old
- Repairs are becoming frequent
- Energy bills are increasing
- Heating is inconsistent
- The system is noisy or losing pressure
- Parts are becoming difficult to source
Modern condensing boilers operate far more efficiently than older models, helping homeowners across Cardiff reduce energy waste and improve comfort. We will always provide honest advice – if repair is viable and cost-effective. We’ll tell you.
Professional Boiler Replacement in Cardiff
Boiler Replacement from £1,970 inc.VAT
Our boiler replacement packages start from £1,970 inc.VAT and include full system integration
Your Installation includes:
- Safe removal and disposal of your existing boiler
- System inspection and performance checks
- System flushing (if required)
- Magnetic filter installation
- Full commissioning and Gas Safe certification
- Thermostat configuration and system balancing
Boiler Manufacturers
We replace boilers with trusted manufacturers including Worcester Bosch, Baxi, Ideal, Vaillant, Navien UK, Alpha and other leading
UK home brand manufacturers.
Warm your home now! Spread the cost over 12 months at 0% interest. No stress.
No hidden surprises! Reliable heat. Predictable payments. You’re in control!
Boiler Finance with SwiftHeat UK
We understand that replacing a boiler is often unexpected. A breakdown can happen without warning, and upfront costs can feel overwhelming. That’s why we offer up to 12 months 0% finance to help spread the cost of your installation, subject to approval with our finance provider, Kanda.
Up to 12 months 0% finance is available through SwiftHeat UK Group Ltd, subject to approval. SwiftHeat UK is a partner with Kanda Finance.
Representative example: 0% APR. Representative based on a loan of £1000 repayable over 10 months at an interest rate of 0% pa (fixed). Deposit amount £200. Monthly repayment £80. Total amount payable £800.Kanda Products & Services Ltd is authorised by the FCA. Registration number 920795. 17 High Street, Forward House. Henley-In-Action. Warwickshire. England. B95 5AA.
Want to talk to us about having some work done and would like to receive a no-obligation quote using Kanda finance?
If you would like to talk to us about having some work done, and to receive a no-obligation quote, we just need some basic information from you. Click the ‘Enquiring about a job’ link below to get started.
We have partnered with Kanda to be able to offer you finance for your purchases. If you already have a quote from us and want to apply for finance for your quote, instead click the ‘I already have a quote’ button on the Kanda Finance website.
Kanda Finance: Enquiring about a job: https://quote.kanda.co.uk/swiftheat-uk-group-ltd
Alternatively, scan the QR Code:
Finance allows homeowners to upgrade their heating system without financial pressure while benefiting from improved efficiency immediately
Boiler Replacement for All Cardiff Property Types
We replace boilers in:
- Terraced houses
- Semi-detached and detached houses
- Rental properties
- Apartments and flats
- Rental properties and landlord portfolios
- Homes converting from conventional to combi systems
Frequently Asked Questions – Boiler Replacement in Cardiff
How long does a boiler replacement take?
A standard boiler replacement in Cardiff would be completed within one working day. More complex system upgrades may take longer.
Is it better to repair or replace my boiler?
If your boiler is older and experiencing repeated faults, replacement is often more cost-effective long term. We provide honest guidance based on your system’s condition.
Will a new boiler reduce my energy bills?
Yes. Modern A-Rated condensing boilers are significantly more efficient than older models and can reduce fuel consumption.
Do you offer finance for boiler replacement in Cardiff?
Yes. Up to 12 months 0% finance is available, subject to approval.
Are your engineers Gas Safe registered?
Yes. All installations and work is carried our by fully qualified and insured Gas Safe registered engineers.
Do you remove the old boiler?
Yes. Safe removal and responsible disposal are included in our service.
Book Your Boiler Replacement in Cardiff
If you need professional, energy-efficient boiler replacement in Cardiff, SwiftHeat UK is ready to help.
Call, SMS or WhatsApp: 07553 025670
Email: info@swiftheatuk.co.uk
Alternatively, send us message on our contact us page with your enquiry and contact details and a member of our team will contact you to discuss your requirements: https://swiftheatuk.co.uk/contact-us/
Check out our recent reviews from our customers on Facebook and keep up to date with our recent installations and offers: https://bit.ly/4cNbC5t
Find out more about our services: https://swiftheatuk.co.uk/services/
Useful Links:
Boiler Installations in Cardiff: https://swiftheatuk.co.uk/boiler-installations-in-cardiff/
Boiler Upgrade in Cardiff: https://swiftheatuk.co.uk/no-1-boiler-upgrade-in-cardiff-improved-efficiency/
SwiftHeat UK – Trusted Heating Specialists Across Cardiff
