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Dema Plumbing & Heating LTD

9.74/10

Waltham Cross

Checkatrade member since September 2025

Services

  • Bathroom & Kitchen Plumbing
  • Blocked Baths
  • Blocked Sinks
  • Blocked Toilets
  • Emergency Plumber Service
  • General Plumbing
  • Pipe Fitter
  • Plumbing Repairs
  • Power Flushing
  • Radiator Installation
  • Radiator Repair
  • Radiator Thermostat Valve Installation
  • Radiator Thermostat Valve Repair
  • Shower Installation
  • Shower Repair
  • Tap Repair
  • Thermal Dynamics
  • Underfloor Heating Installation
  • Underfloor Heating Repair
  • Water Leak Detection
  • Water Mains Specialist (Pipe Replacement, Moling and Lead Pipes)
  • Water Pumps Installation
  • Water Pumps Repair
  • Water Supply Pipe Repairs

Customer Reviews

Write a review

9.74 /10

Based on 11 reviews over the past 12 months

Quality of work

9.7

Reliability

9.8

Communication

9.7

Reviews (11)

  • 9

    No job to small or to big

    Posted 25 April

    Stefan even came in the evening to survey job after 6pm during the week and was able to attend Saturday morning and also complete the job within a day and also replaced our dodgy toilet cistern fill valve, we have grabbed a few business cards for anyone who asks for a plumber in the future
    Job location: AL7
  • Martyn B
    9

    Radiator and shower mixer replaced

    Posted 28 March

    Had a new radiator and shower mixer fitted by Stefan today. He arrived on time, completed the work efficiently and managed to sort out an issue which cropped up along the way. Many thanks
    Verified reviewer
    Job location: EN2
  • 10

    Fit shower pump

    Posted 24 March

    Absolutely wonderful plumber Work is second to none! Punctual, mannerly and efficient.
    Verified reviewer
    Job location: EN1
  • Iain S
    10

    Awkward access leaky pipe

    Posted 18 February

    Stefan did a great job for us. He arrived when he said he would and left no mess. He fixed our problem without fuss! Thank you, Stefan!
    Job location: SG13
  • 9.33

    The Plumber You Need!

    Posted 13 February

    I recently had a new radiator installed in my basement and I couldn't be more impressed with the service Stefanos provided. He was a very good worker. A great plumber if anyone needs one. I highly recommend his service. He was helpful, offered clear advice and he's a reliable worker. Stefanos was also very punctual, friendly and professional. I'm extremely pleased with the result and have had compliments since the finished new installation of my radiator. The basement is much warmer now.
    Verified reviewer
    Job location: ME7
  • Sue H
    10

    Wouldnt hesitate to recommend

    Posted 30 November 2025

    Absolutely fantastic, Stephan did a great job and even did a couple of extra small jobs will definitely use him again
    Verified reviewer
    Job location: NW7

Photos

Company Info

Owner

Mr Stefan Ntema

Ltd Company

1 years on Checkatrade

VAT Registered

No

24 Hour Call-outCards AcceptedDomestic WorkFree EstimatesInsurance Work Undertaken

Dema Plumbing & Heating LTD started trading 2015.


My name is Stefan skilled and valuable with a decade of hands-on experience in residential and commercial Plumbing.


Specialist in bathroom renovation, kitchen project, and small-scale installation, delivering high quality workmanship with attention to details.


Strong knowledge of modern Plumbing systems, fixtures, and fittings, ensuring efficient solutions tailored to client's needs.


Known for professionalism, problem-solving, and cost- focused approach.


Key skills:


• bathroom and kitchen renovation

• installation of pipes fixtures and appliances

• repair and maintenance of Plumbing systems

• troubleshooting and fault-finding

• clear communication with clients and contractors.

Accreditations and awards

City & Guilds Qualified - Level 2
City & Guilds Qualified - Level 2

This trade passed up to 12 Checkatrade vetting checks

Member since September 2025

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  • Proof of address

  • Financial

  • Qualifications and accreditations

  • County court judgement

  • Open source media

Business checks

  • Customer Reviews

  • Company trading history

  • Company duplication

  • County court judgement

  • Enhanced business check

  • Director checks

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