How to Find a Reputable Underfloor Heating Installer Near You
Hiring someone to fit underfloor heating is not quite like hiring a general plumber. The system lives under your floor for twenty or thirty years, and if it's fitted badly, the only way to sort it out is to lift the floor and start again. That is a very expensive mistake to have to make.
So finding a good one matters. And finding a good one near you matters more than people realise, because site visits, follow-ups, and warranty call-outs all work far better when your installer can actually come round.
This guide walks you through the bit most articles skip over: where to actually look, how to tell who's genuine, what to ask before you hire, and what your options are if something does go wrong.
Why "near you" matters more than you think
You could, in theory, hire an installer from two counties away. Some people do, especially for specialist retrofit jobs where nobody local has the experience. But there are real reasons to prioritise someone local whenever you can.
Site visits are non-negotiable for a proper quote. A quote given without someone standing in your actual living room is a guess. Local installers will visit without charging for their time. National firms sometimes won't.
Follow-ups and warranty issues go much smoother. If a thermostat packs in two years later, a local installer can pop over in an hour. A distant one can't, or will charge for the call-out.
Local building stock knowledge saves hours. An installer working regularly in Bath knows how Georgian floors behave. One in Cheltenham knows the Cotswold stone traps. One in Birmingham knows how a 1930s semi typically sits on its foundations. That kind of knowledge is invisible until it saves you from a big mistake.
Reputation is easier to check. You can ask your neighbours, your builder, or the local community Facebook group. Online-only installers are harder to verify.
If you're weighing up a brilliant installer who's an hour away against an average one ten minutes away, that's a judgement call. But all else being equal, closer is almost always better for UFH work.
Where to actually look (and what each option is good for)
There are six main routes. They all have their place. Most sensible homeowners use two or three in parallel.
1. Vetted directory platforms
The big names are Checkatrade, TrustATrader, Which? Trusted Traders, Rated People, and Bark. They are not identical.
Checkatrade runs background checks (identity, insurance, references) before listing. Lots of volume, but the checks are less strict than Which?. You'll find plenty of UFH specialists here, especially in cities.
Which? Trusted Traders has the most stringent vetting, including a trading-standards-style assessment. Fewer listings, but the bar is genuinely higher. A good place for larger UFH projects.
TrustATrader is similar territory to Checkatrade with its own review system.
Rated People leans quote-led: post your job and installers bid. Useful if you haven't shortlisted anyone yet, but the vetting is lighter.
Bark is the lightest-touch of the big ones and should be cross-checked against other sources before you commit.
Pros: fast, built-in reviews, some insurance backing. Cons: paid-to-list models mean "vetted" varies in meaning, so you still need to do your own due diligence on anyone you shortlist.
2. Manufacturer-approved installer networks
This is the route most articles miss, and it's one of the strongest trust signals you can get. The major UFH brands all maintain networks of installers they've trained and accredited:
- Warmup Approved Installers (electric and water)
- Nu-Heat Registered Installers (water systems, heat pump specialists)
- Heatmiser Pro Installers
- Polypipe Trained Installers (one of the largest wet-UFH networks)
- Wundatherm and Fastwarm both run approved-installer lists
Why this matters: manufacturer-approved installers often get extended product warranties that regular installers cannot offer. A Warmup mat fitted by an approved installer might carry a lifetime warranty, while the same mat fitted by an unapproved installer gets ten years. That alone can be worth any small price premium.
Visit the manufacturer's site, enter your postcode, and you'll get a list of accredited installers near you.
3. TrustMark
TrustMark is the UK government-endorsed scheme for tradespeople working on your home. It sits above individual trade associations and enforces workmanship and customer service standards. If you're doing a heat pump and UFH combination, your installer will almost certainly need to be TrustMark-registered for grant eligibility anyway. For pure UFH it's not required, but it's a reliable filter.
4. Trade association directories
Both the APHC (Association of Plumbing and Heating Contractors) and CIPHE (Chartered Institute of Plumbing and Heating Engineering) have searchable member directories. So does the Gas Safe Register itself. These are useful cross-checks once you've got a shortlist.
5. Local referrals
Your neighbour, your builder, your electrician, or your local Facebook community group will often surface names that don't come up in directories. These referrals are gold because they come with context you don't get online. "They were tidy, they cleaned up after themselves, they came back when the thermostat glitched." That's the kind of detail that matters.
Ask in your local parish Facebook group, Nextdoor, or a neighbourhood WhatsApp. You'll get answers faster than you expect.
6. A specialist directory like this one
We run Underfloor Heating Directory specifically for UFH work, covering thousands of businesses across the UK. We focus on installers who specialise in UFH rather than general plumbers who mention it once on their website. Use it alongside the other routes, not instead of them.
Why UFH installation needs specialist skills
Quick detour on why this matters so much.
A competent UFH installer has to:
- Calculate heat loss for every room. Skip this and the system will either underperform or run hot and waste energy.
- Design the pipe layout (for wet systems) so flow is even, loops are the right length, and the manifold is specced correctly.
- Understand how different floor constructions behave. Screeded concrete, suspended timber, and overlay systems all respond differently.
- Pressure-test and commission wet systems properly. A screed poured over an untested pipe is a disaster in slow motion.
- Integrate with your heat source, whether that's a combi boiler, system boiler, heat pump, or solar thermal.
A general plumber can fit the pipes. The design and commissioning bit is where things go wrong.
Qualifications to look for
Wet (hydronic) UFH
| Qualification | What it means |
|---|---|
| Gas Safe Register | Required for any gas boiler connection. Verify at gassaferegister.co.uk |
| APHC or CIPHE membership | Mainstream plumbing and heating trade bodies |
| NICEIC or NAPIT (with Part P) | Needed for any electrical work on controls, thermostats, or pumps |
| MCS certification | Required if pairing UFH with a heat pump. Check at mcscertified.com |
Electric UFH
| Qualification | What it means |
|---|---|
| Part P certification | Required for the electrical side, even if a tiler is fitting the mat |
| NICEIC or NAPIT | Professional electrical competent-person schemes |
| Manufacturer training | Warmup, Nu-Heat, and others accredit installers; this is what unlocks extended warranties |
Heat pump + UFH packages
You need an MCS-certified installer if you want to claim the Boiler Upgrade Scheme grant (£7,500 toward an air source heat pump). Only MCS installers can submit BUS applications. No shortcuts on this one.
How to verify credentials yourself (a 10-minute checklist)
Most homeowners never do this. Most installers are fine, so they get away with it. But when it does go wrong, it goes wrong for the people who didn't check.
- Gas Safe number. Ask for it. Look it up on the Gas Safe Register. The name on the register must match the person coming to your house, not just the company.
- Part P / NICEIC / NAPIT. Ask for the registration number and check on the relevant body's website.
- MCS. Look up the MCS number on the MCS register if heat pumps are involved.
- Companies House. Search the company name. See how long they've traded, who the directors are, and whether accounts have been filed. Brand-new companies are not automatically a problem, but be extra careful with references.
- Insurance certificate. Ask for a copy of their public liability certificate. Check the cover level (£1m minimum for domestic work, £2m+ for anything substantial) and the expiry date.
- VAT registration. If they say they're VAT-registered, you can verify the number on HMRC's VAT checker.
- Address match. The addresses on quotes, invoices, and Companies House should agree. A registered office at an accountant's address is fine, but if nothing matches and there's no real office at all, push harder.
- Review spread. Recent reviews across months, not a cluster of five-stars posted in one week.
- Photos of actual work. Real manifolds, real pipe layouts, real customer homes (with permission), not stock photos.
- Manufacturer accreditation. If they claim to be a Warmup Approved Installer, search them on Warmup's own website. If they're not there, they're not approved.
Ten minutes of this weeds out most of the dodgy ones.
How to read reviews properly
A five-star average is not the whole story. Read the actual reviews with a filter.
Look for consistency. Ten reviews over two years, all saying the same things (tidy, on time, explained the system clearly), is a far stronger signal than twenty five-star reviews that just say "great job!!"
Look for projects like yours. A glowing review from someone who had a single bathroom mat fitted tells you less about a whole-house wet-UFH retrofit than a detailed review of the latter.
Read the three-star and four-star reviews. These are often the most useful. They typically flag small things, like running slightly over, or one thermostat needing revisiting, and give you a realistic picture of how the installer handles imperfection.
Check how they respond to bad reviews. Every good tradesperson gets a bad review eventually. What matters is whether they replied with "Sorry, we'll fix it", or with a defensive rant, or with silence.
Be suspicious of clusters. Ten five-star reviews in the same week, all from accounts with no other reviews, is not reassuring. It's a sign someone has asked every recent customer to post, or worse.
Recency matters. Glowing reviews from five years ago may reflect different staff and different standards. Weight recent ones heavily.
The site visit: the single most important step
Honestly, if an installer won't do a site visit before quoting, you should stop there. Price-first, visit-never is the pattern of firms that quote low, win the job, then add extras once the floor is up.
A proper site visit takes 30 to 60 minutes and should include:
- Measuring rooms and confirming floor areas
- Looking at the floor construction (concrete, timber joists, existing floorboards)
- Checking where your heat source sits (boiler, heat pump, hot water cylinder) and tracing existing pipework
- Inspecting insulation levels, because UFH over poor insulation is a waste of money
- Discussing your floor covering plans (tile, engineered wood, carpet) because they change the spec
- Answering your questions without rushing
If the installer drops in for fifteen minutes and emails a quote the next day, that quote is a guess. Ask for a proper survey. A serious installer will happily give you one.
10 questions to ask before you hire
Once you've got a shortlist of two or three installers who have visited and quoted, these are the questions that separate the pros from the rest.
1. Do you carry out a heat loss calculation?
The single most important question. A heat loss calc tells you how much heat each room actually needs. Without one, the whole system is a guess. Accept "yes, per room, written up" or "yes, using Warmup or Nu-Heat design software". Don't accept "we've done enough of these to know".
2. Can you give me two recent references for similar projects?
"Recent" means the last six to twelve months. "Similar" means the same type of job, not any old job. A Victorian-terrace retrofit reference is not relevant if your project is a new-build extension.
3. What products do you use, and why?
Good installers have preferences and can defend them. "We use Uponor pipe because of its oxygen barrier and long track record" is a real answer. "Whatever's cheapest" is not.
4. What warranties do you offer?
There are two, sometimes three:
- Product warranty from the manufacturer (25 years is standard on pipe, 2 to 10 on thermostats)
- Workmanship warranty from the installer (usually 1 to 5 years)
- Design warranty, much less common, covering the system hitting the design temperatures. Worth asking about on larger jobs.
Ask for the terms in writing.
5. Will you pressure-test the wet system before the screed goes down?
Non-negotiable on wet systems. Any hesitation here and you move on.
6. How will you commission and balance the system?
After install, the zones need flow-rate balancing and the thermostats calibrating. Commissioning should be a named step in the quote, ideally with a handover document showing per-zone settings.
7. Do you handle the electrics, or do I need a separate Part P electrician?
Either answer is fine. What you need is clarity about who is signing off the electrical certificate.
8. What's the realistic timeline and how much disruption should I expect?
Wet-UFH retrofits in occupied homes are serious disruption. Floors up, screed down, screed curing for four to six weeks before full heat-up. A vague "couple of weeks" answer means they haven't thought it through.
9. What's the payment schedule?
Standard UK practice for a larger UFH job:
- 25 to 30% deposit on order
- A stage payment on material delivery or at the start of installation
- Balance on completion and handover
Any ask for 100% up-front is a red flag. So is cash-only.
10. What happens if something goes wrong after handover?
You want a named contact for aftercare, a response-time commitment, and clarity on which issues are covered by which warranty.
Red flags
Walk away if they:
- Won't do a site visit before quoting
- Can't explain their heat loss method
- Only quote verbally, never in writing
- Won't provide references
- Skip pressure testing on wet systems
- Don't mention commissioning
- Demand 100% up-front or cash-only
- Claim certifications that don't check out on the public register
- Pressure-sell with "this price is only good today"
- Sound evasive about what's in and out of scope
None of these are close calls. Any of them on its own is enough reason to choose someone else.
Understanding warranties properly
There are three layers. They are not the same thing.
| Warranty type | Who provides it | What it covers |
|---|---|---|
| Manufacturer product | Pipe / mat / thermostat brand | The physical product failing |
| Installer workmanship | Your installer | Installation errors |
| System design | Your installer | System under-performing against spec |
Two things most homeowners don't know:
- Most product warranties require professional installation. Using an uncertified installer can void the warranty. A DIY install is almost always false economy.
- Manufacturer-approved installers often get longer warranties. A Warmup 30-year warranty might drop to 10 years if the same product is fitted by an unapproved installer. Worth factoring into the cost comparison.
Getting and comparing quotes
You want at least three written quotes, all itemised the same way.
Get three quotes. Pricing variation of 30 to 50% for nominally the same job is normal, and you only learn what's reasonable by comparing.
Insist on itemisation. Pipe, screed, manifold, thermostats, labour, waste disposal. All separate line items. A lump-sum quote tells you nothing.
Check what's excluded. Floor prep, floor coverings, screed (sometimes), electrics (sometimes), making good. Exclusions are where quotes diverge.
Compare specifications, not just prices. Different installers may quote different pipe brands, screed types, or thermostat systems. Note what they've specified.
Consider timeline. A cheaper quote that lands you on a waiting list for four months may cost you more elsewhere (rental property, delayed decorating, lost summer building weather).
The cheapest quote is almost never the right answer for UFH. This is a system embedded in your home. Getting it right costs a little more up front and saves a lot later.
Home insurance: does UFH change anything?
A bit, yes.
Some insurers ask on renewal whether you have underfloor heating, because repair costs are higher than for radiators. That can nudge your premium up a touch. Not always, but worth declaring.
More importantly: if a pipe leaks and damages the screed, some policies exclude the system itself while covering the collateral damage to flooring and decoration. Read your schedule carefully. If you're doing a large UFH install, a quick call to your insurer before work starts is sensible.
If it goes wrong: your rights and escalation routes
Most jobs go fine. But if yours doesn't, you have more options than people realise.
- Raise it with the installer first, in writing. Keep it factual. Give them a reasonable chance to put it right.
- Check which trade body they belong to. APHC, CIPHE, NICEIC and TrustMark all offer dispute-resolution services for member-firm complaints. This is free to you as a consumer and often unsticks things when direct contact has stalled.
- Warranty-backed schemes. Some membership schemes offer financial protection or workmanship guarantees even if the installer goes out of business. Check what cover you already have.
- Citizens Advice. They run the Consumer Service and can tell you your rights under the Consumer Rights Act 2015, which covers both the quality of work and the right to remedy.
- Small claims court. For jobs under £10,000, the small-claims route is accessible without a solicitor.
- Gas Safe investigations. If the issue involves unsafe gas work, report it to Gas Safe directly. They have their own enforcement powers.
The simple fact that you know these routes exist is often enough to sharpen up a stalled conversation.
Using our directory
We list UFH specialists across the UK, organised by county and city. When browsing, look for installers who:
- Specialise in UFH, not general plumbing and heating with UFH as a side line
- Have multiple reviews and a track record you can verify
- Are local enough that a site visit is not a hassle
Browse UFH installers by county or city. Find someone near you and request quotes from two or three.
Frequently asked questions
Can a regular plumber install underfloor heating?
A good plumber can fit the pipes, but UFH design, heat loss calculation, and commissioning are specialist skills. Always ask about UFH-specific experience, not just general plumbing.
How do I check if a Gas Safe engineer is genuine?
Go to gassaferegister.co.uk and search by name or Gas Safe ID. Match the card they carry with the register entry. If the names don't agree, something's off.
What's the difference between APHC, CIPHE, and TrustMark?
APHC and CIPHE are trade bodies for plumbing and heating firms and individuals. TrustMark is a government-endorsed umbrella scheme that sits above the trade bodies. Any of the three is a reasonable trust signal; TrustMark is the broadest and the one Boiler Upgrade Scheme grants reference.
Do I need an MCS-certified installer?
Only for heat pump installations (and the associated Boiler Upgrade Scheme grant). For gas-boiler-fed UFH or electric UFH, MCS is not required.
How many quotes should I get?
Three is standard. For a larger project (£10,000 upwards) consider four. The variance between quotes is genuinely large, and comparing them also flushes out which installers have really thought the job through.
Is it worth paying more for a manufacturer-approved installer?
For most households, yes. The extended warranty alone often outweighs the modest price premium, and the installer has usually had direct training on the exact products they're fitting.
How local is "local enough"?
Rule of thumb: within an hour's drive of your property. Close enough for site visits without extra charges, close enough for quick warranty call-outs, and close enough that reputation travels word-of-mouth in your area.
What if my preferred installer won't do a site visit?
Don't hire them. A quote without a site visit is a guess. Either they're too busy, too careless, or they're planning to adjust the price upward once work starts.
Ready to get started? Browse our directory of UFH installers near you and request quotes from two or three local specialists.