HIU Replacement Services
Instant Fixed Price & Hourly Rate Quotes • Nationwide
Get instant fixed price and hourly rate quotes from 1,000s of qualified engineers. Is your HIU old, inefficient, or beyond repair? We supply and install replacement HIUs from all major manufacturers, upgrading your system for improved efficiency and reliability.
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What's Included:
How HIU Replacement Works
Get quotes from verified engineers in minutes. It's free, fast, and fully protected.
Free Site Survey
We arrange a free site survey to assess your requirements for hiu replacement. Our engineer will evaluate the site, discuss options, and take necessary measurements.
Detailed Quotation
You receive a detailed, itemised quotation covering all materials, labour, and ancillary costs. No hidden extras — the price you see is the price you pay.
Professional Installation
Our qualified engineers carry out the installation to the highest standards, working cleanly and efficiently to minimise disruption to your premises.
Commissioning & Handover
Every installation is fully commissioned, tested, and certified. We provide a complete handover including operating instructions, warranties, and compliance documentation.
About Our HIU Replacement Service
Is your HIU old, inefficient, or beyond repair? We supply and install replacement HIUs from all major manufacturers, upgrading your system for improved efficiency and reliability.
Whether you're a homeowner, landlord, property manager, or business owner, UK Gas Plumbers connects you with qualified, vetted engineers who specialise in hiu replacement. Every engineer on our platform is verified, insured, and reviewed by real customers — so you can book with complete confidence.
We understand that finding reliable hiu & heating systems professionals can be challenging. That's why we've built a platform that makes it simple to get competitive quotes from trusted engineers in your area. Post your job, receive quotes, compare engineers, and hire — all through one easy-to-use platform.
Our hiu replacement service covers both commercial and domestic properties across the entire United Kingdom. From Central London to the Scottish Highlands, from Cardiff to Belfast, we have qualified engineers ready to help. With transparent pricing, payment protection on every job, and a 24/7 customer support team, UK Gas Plumbers takes the stress out of finding the right engineer for your hiu replacement needs.
Why Choose UK Gas Plumbers for HIU Replacement?
A smarter way to manage jobs
Our platform handles everything — from automated payouts to dispute resolution — so you can focus on the work.
Fixed Prices, No Surprises
Upfront pricingSee the full price before you book. No call-out fees, no hidden charges, no surprise bills at the end of the job.
Your Money Is Protected
100% protectedWe hold your payment securely and only release it once the job is finished and you're happy. You're never out of pocket.
Help If Anything Goes Wrong
48hr responseIf something isn't right, our UK support team steps in within 48 hours to put it right — at no extra cost to you.
Real People, 24/7
Always availableTalk to a real UK-based human any time of day or night by chat, email or phone — including weekends and bank holidays.
Vetted, Insured Engineers
Fully vettedEvery engineer is ID-checked, qualified and covered by £5M public liability insurance — so you can book with total confidence.
12-Month Workmanship Guarantee
GuaranteedAll work is backed by our workmanship guarantee. If an issue appears later, we'll send an engineer back to fix it — free.
Compliance & Standards
Our HIU specialists are BESA (Building Engineering Services Association) registered and work to CIBSE (Chartered Institution of Building Services Engineers) guidelines. We comply with the Heat Network Regulations 2014 and all relevant British Standards for district heating systems. Our engineers are trained on all major HIU brands including Danfoss, Evinox, Caleffi, and SAV, and carry manufacturer-specific certifications where available. We maintain detailed service records and provide comprehensive reports on every visit.
Built on trust
Every engineer on our platform is fully vetted, insured, and reviewed by real customers.
Qualifications Checked
Always currentGas Safe, NICEIC, FGAS — all verified and monitored.
Transparent Reviews
4.8★ averageReal ratings from real clients on every completed job.
Vetted & Insured
Fully vettedMulti-step vetting. Only approved, insured professionals.
Hire verified engineers with confidence
Whether you manage offices, retail, hospitality, or industrial facilities — UK Gas Plumbers gives you instant access to ID-verified, qualification-checked engineers.
- Every engineer is ID & qualification verified
- Payment protection on every job
- 24/7 customer support
- Compare quotes from multiple engineers
- Emergency & same-day callouts available
HIU Replacement — Areas We Cover
We provide hiu replacement services across the entire United Kingdom. Our network of qualified engineers covers all major cities and regions including London (all boroughs), Manchester, Birmingham, Leeds, Glasgow, Edinburgh, Liverpool, Bristol, Sheffield, Newcastle, Nottingham, Southampton, Cardiff, Belfast, Leicester, Brighton, Portsmouth, Reading, Coventry, and hundreds of smaller towns and villages. Whether you're in a major city centre or a rural location, we have engineers available in your area. Enter your postcode when booking to be matched with qualified local engineers who can reach you quickly.
What Our Customers Say
"Our boiler broke down on the coldest night of the year. UK Gas Plumbers came out within the hour and had it fixed by morning. Brilliant service!"
"They handle all my CP12 certificates across 8 rental properties. Always punctual, professional, and the tenants love how friendly the engineers are."
"Excellent commercial service. They responded quickly to our emergency kitchen gas issue and had us back up and running within hours."
HIU Replacement — Frequently Asked Questions
How much does hiu replacement cost?
The cost of hiu replacement varies depending on the scope of work, system type, and location. We provide free, no-obligation quotes so you know the exact price before any work begins. Our pricing is transparent with no hidden charges. Contact us for a competitive quote tailored to your specific requirements.
How quickly can you provide hiu replacement?
We offer fast response times for hiu replacement across the UK. For emergency situations, we have engineers available for same-day callout. For planned work, we can typically schedule within 24–48 hours. Our online booking system lets you choose a time slot that suits your schedule.
Are your engineers qualified for hiu replacement?
Yes, all our engineers are fully qualified and hold the relevant certifications for hiu replacement. This includes industry-specific registrations, professional body memberships, and ongoing training to stay current with regulations and best practices. Every engineer carries their certification and ID.
Do you cover my area for hiu replacement?
We have qualified engineers across the entire United Kingdom, covering London, the South East, Midlands, North of England, Scotland, Wales, and Northern Ireland. Enter your postcode when booking to be matched with local engineers in your area.
Do you offer maintenance contracts for hiu replacement?
Yes, we offer flexible maintenance contracts and planned service agreements for hiu replacement. Regular maintenance prevents costly breakdowns, extends equipment life, and ensures ongoing compliance. We can tailor a contract to your specific needs and budget, with options for monthly, quarterly, or annual visits.
What happens if something goes wrong after the work is completed?
All our work comes with a workmanship guarantee. If any issues arise after completion, contact us and we'll send an engineer back to resolve the problem at no additional cost. We also provide warranty support on all parts and materials used, and our customer support team is available to help with any concerns.
Related HIU & Heating Systems Services
Professional HIU installation for district and communal heating systems. All major brands including Danfoss, Evinox, and Caleffi.
Fast HIU repair service for all heat interface unit brands. Danfoss, Evinox, Caleffi specialists. Same-day emergency callout available.
Annual HIU servicing to maintain efficiency and prevent breakdowns. Bulk contracts for housing associations and property managers.
District heating system installation, repair, and maintenance. Specialist engineers for communal and district heating networks across the UK.
Stay Cool — Air Conditioning & Refrigeration Services
Alongside our gas & plumbing work, our F-Gas certified engineers install, service and repair air conditioning and commercial refrigeration across the UK.
Air Conditioning Installation
Split, multi-split & ducted systems installed by F-Gas certified engineers.
Get an install quoteAir Conditioning Repair
Same-day fault diagnosis, regas & repairs for domestic and commercial AC.
Book a repairRefrigeration Services
Commercial fridges, cold rooms & catering refrigeration — 24/7 callout.
Request service