Written by Mark Reid,
Trades Editor ·Verified 23 September 2026
Hemel Hempstead's a mix of old and new, and that shows in the plumbing work people need. You've got the 1960s new town estates around Adeyfield and Bennetts End with their original copper pipework, the Georgian and Victorian properties near the Old Town with all the quirks that come from decades of extensions, and newer developments around Maylands and Hemel Hempstead Station where combi boilers and pressurised systems are the norm. Hard water from the chalk aquifers under the Chilterns doesn't help either, it clogs up shower heads and shortens the life of immersion heaters, so limescale-related callouts are common here. Whether it's a burst pipe in a Gadebridge semi or a boiler that's given up in the middle of winter in Bovingdon, local plumbers deal with a fairly wide range of jobs.
The businesses listed here come from public business listings, ranked by their review rating and how many reviews they've got, with a small lift given to those showing a working website and phone number. We also read each business's homepage to check that plumbing is genuinely their main trade, which stops unrelated builders or handymen sneaking onto a plumbers list. Any listing flagged as permanently closed gets removed automatically. Where you spot a Trust Verified badge, that business has gone through our fuller check, covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information. Our How We Verify page sets out exactly what that involves. For any business without the badge, none of that has been independently confirmed by us, so it's down to you to check before booking.
Before you commit to anyone, ask for a written quote rather than a verbal estimate, and get at least two or three so you can compare fairly. Check whether they're Gas Safe registered if the job involves a boiler or gas appliance, and ask to see the card, don't just take their word for it. For bigger jobs like a bathroom refit or new pipework, ask whether they'll give you a rough timescale and what happens if they hit unexpected problems, like rotten floorboards under an old bath. It's also worth asking about guarantees on parts and labour, and whether they carry public liability insurance in case anything gets damaged while they're working in your home.
How We Select & Rate The Best Plumbers in Hemel Hempstead
Rankings are based on review rating and review count pulled from public business listings, with a small lift given to businesses that show a working website and phone number. We check each business's homepage to confirm plumbing is their main trade, which keeps unrelated businesses off the page. Listings flagged as permanently closed are removed automatically. Businesses marked Trust Verified have gone further, passing our full verification covering trade qualifications and accreditations, public liability insurance, trading history, customer review history and registered company information, detailed on our How We Verify page. Other businesses here haven't been independently verified by us, and being listed isn't an endorsement. Do your own checks before hiring anyone.
Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. Every other listing is ranked on rating and review count from third-party business listings. How we rank & verify →
LT Plumbing And Heating covers bathroom installation, boiler installation, and gas fitting from its base in Hemel Hempstead, alongside broader plumbing and heating work. The business holds a five-star rating across 130 Google reviews, which points to consistent standards rather than occasional good form. Air conditioning installation rounds out the offer for residential and light commercial enquiries in the area.
Heat Tech Services Limited is a plumbing firm based in Hemel Hempstead, serving residential and commercial customers across Hertfordshire. The company operates under the HP6 6JQ postcode, which places it well for reaching both local and surrounding areas. Further details on the range of work undertaken are available at heat-tech-herts.co.uk.
A 4.7 rating from 25 reviews points to consistent workmanship at Ashgas Heating & Plumbing, based in Hemel Hempstead. The firm covers plumbing and heating repairs for households across the area, with jobs typically arranged by phone or through the company website. Feedback suggests reliability rather than one-off satisfaction.
A 4.5-star rating from 17 reviews reflects consistent workmanship at Aardvark Plumbing & Drainage Ltd, serving Hemel Hempstead. The firm handles general plumbing and drainage issues, from leaks and blockages to pipework repairs. Its steady feedback record suggests reliability rather than one-off praise, giving local customers a reasonable basis for judging the standard of work before booking.
Hemel Hempstead households call on Troy.P Plumbing for general plumbing repairs and installations around the home. Six reviews on Google have all rated the work five stars, reflecting consistent attention to detail on jobs in the HP1 area. The firm operates through its own website rather than a marketplace listing.
Hemel Hempstead households needing boiler repairs or general plumbing work can call on Hemel Plumbing & Boiler, based in the HP3 area. The firm covers breakdowns, servicing and everyday plumbing issues, with a 4.8 rating from local customers reflecting the standard of work carried out.
Families across Hemel Hempstead call on J A Gas & Plumbing Services for boiler repairs, gas safety checks and general plumbing work. The firm covers day-to-day household issues alongside larger jobs, aiming to keep disruption to a minimum. Based in the HP1 area, it serves both residential customers and smaller commercial premises nearby.
Transparency notice: Recommended and Featured listings are paid placements, so a business's fee affects whether and where it appears. All other listings are ranked by a combined score drawn from ratings and review counts published on third-party business listings, plus basic completeness signals such as a working website and phone. A Trust Verified badge means we have independently checked that business's documents; businesses without it have not been independently verified by us. How we verify →
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A basic callout for something like a dripping tap or running toilet usually runs £60 to £120 including the first hour's labour. Bigger jobs vary a lot: a boiler service is typically £70 to £100, a full boiler swap can be £1,800 to £3,200 depending on make and whether pipework needs altering, and a bathroom refit with new pipework often lands between £3,500 and £7,000. Prices shift depending on the age of your property and how easy the pipework is to get at, older Old Town houses can take longer than a new-build in Maylands. Get two or three quotes before deciding, it's normal practice and helps you spot anyone quoting well above or below the going rate.
Do I need a Gas Safe registered plumber for boiler work in Hemel Hempstead?
Yes, legally only a Gas Safe registered engineer can work on gas boilers, gas fires or gas pipework. Always ask to see their Gas Safe card and check the registration number matches the person standing in front of you, not just the company name. You can also check the register online. This matters whether you're in a period cottage in Piccotts End or a modern flat near the station, gas safety rules don't change with the property type.
How quickly can a plumber come out for an emergency in Hemel Hempstead?
Most local plumbers offering emergency callouts aim to be with you within an hour or two for genuine emergencies like burst pipes or serious leaks, though this depends on how busy they are and where you are relative to their base. If you're dealing with a burst pipe, turn off the stopcock straight away, it's usually under the kitchen sink or in the utility room, and this can limit damage while you wait. Expect to pay a premium for out-of-hours or weekend callouts, often £90 to £150 just for the visit.
What should I check before letting a plumber start work in my home?
Ask for proof of Gas Safe registration if gas work's involved, and ask whether they hold public liability insurance in case of accidental damage. Get a written quote that breaks down labour and materials, and ask how they handle unexpected costs, for example finding old lead pipework mid-job. It's also worth asking for photos of recent similar work or references from past customers, especially for bigger jobs like re-piping a whole house.
Can a plumber help with hard water problems in Hemel Hempstead?
Yes, hard water is a genuine issue locally because of the chalk underneath the area, and it shortens the life of kettles, shower heads and immersion heaters. Plumbers can fit a water softener or scale reducer, typically £400 to £900 supplied and fitted depending on the system, and this often pays for itself over a few years in reduced appliance repairs and lower energy use on the boiler.
How do I choose between plumbers listed here?
Start by reading a handful of recent reviews rather than just the star rating, look for comments about punctuality, tidiness and whether the final price matched the quote. Check the business has a working phone number and website with real contact details, and if there's a Trust Verified badge, look at what's covered on our How We Verify page. For anyone without that badge, ask directly for proof of Gas Safe registration, insurance and a few references before booking, and don't be afraid to ask the same questions of two or three plumbers so you can compare properly.
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