Landlords & letting agents · London

Plumbing and gas safety for landlords and letting agents

One point of contact for tenant repair call-outs and annual gas safety compliance across your rental properties, rather than a different tradesperson for every job.

Offer £25 off your first call-out for new customers
  • Gas Safe registered Landlord gas safety certificates (CP12)
  • We deal with tenants directly Access and updates without you in the loop
  • Price agreed before we start No surprise invoice, ever
  • Insured, DBS-checked engineers Directly employed, not subcontracted

Mon–Fri 8:00–17:30 · Emergency callout available 24/7

£25 off your first call-out New customers only. Cannot be combined with other offers.

Set up your properties

Tell us about the property or portfolio and what you need — a tenant repair, a gas safety certificate, or both on an ongoing basis.

How urgent is it?
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Or call 020 3488 3737 WhatsApp 020 3488 3737

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No obligation. Every job is priced and agreed before it is booked.

  • Google reviews
  • Gas Safe registeredGas work done legally and signed off
  • Fully insuredPublic liability cover on every job
  • DBS-checked engineersDirectly employed, never subcontracted
  • Established 2019Tamesis Development Ltd, Company No. 12210539
What customers say

Customer reviews

  • New toilet fitted — pain-free experience

    “Max was extremely kind and flexible — the first toilet was too big so he came back an hour later with a smaller one and stayed into the evening to fit it. Also heat-dried the floor and resealed a small leak. Highly recommended!”

    Scott S

  • Checkatrade

    Helped when others weren't interested!

    “Very happy with the response, service and work carried out at very short notice by this team — where no one else on Checkatrade could be bothered!”

    Stuart U

  • Fast, transparent emergency drainage repair

    “Amir Qome and Mohsen arrived within 20 minutes. They texted updates, sent photos/videos of every important step, put in temporary safety measures and completed a fragile, complex job in 4.5 hours — at a lower price than previous invoices. I’ll only use this company from now on.”

    Ellie Castano

  • Brilliant boiler service from start to finish

    “Arrived on time, very respectful and professional, worked quickly, and left everything clean and tidy after fixing the boiler. Really appreciated how efficient and hassle-free the whole job was. Would definitely recommend.”

    Aryan

  • Google

    “Initially changed our pump for our water pressure (advised from a previous plumber), but that didn't solve our problem. Diako at Ninja Plumbers sorted out the issue the next week for a very reasonable price! Our water pressure now works perfectly!”

    Alex B

  • Google

    “Great price On time and reliable company Great job”

    Simone Morgan Abel

  • Google

    “Ali was amazing! Has made my bathroom feel like a luxury hotel! He was so considerate of me and my son it was a pleasure to have him working in my house! His attention to detail is one of many reasons I’d have him back working in my place, thank you Ali 🙏”

    Terry Coleman

  • Google

    “Highly Recommended Plumbers in London.”

    Fred Gh

What we cover

Repairs and compliance under one contact

Reactive repairs and annual compliance, handled by the same directly employed engineers.

  • Gas safety certificates

    Annual CP12 checks worked to your renewal dates

  • Tenant repair call-outs

    Leaks, blockages, taps, toilets and no hot water

  • Boiler repairs & servicing

    Gas Safe registered engineers, certificated

  • Portfolio compliance

    Several properties tracked under one contact

  • Direct tenant liaison

    We arrange access and keep the tenant informed

  • Flats and houses

    Rented homes across the London boroughs

How we work with landlords

Less admin for you, a proper record for your file

You introduce us once. After that, repairs and gas safety renewals run without every message going back through you, and you get the paperwork you need to keep.

  • We deal directly with tenants

    Give us the tenant’s number alongside yours and we will arrange access and keep them informed directly, rather than everything routing back through you first.

  • Gas safety certificates on your renewal date

    A CP12 has to be renewed every 12 months and produced to a new tenant before they move in. We can work to your existing renewal dates across a portfolio rather than starting from scratch.

  • One call for the whole rental relationship

    A blocked drain, a broken tap, and the annual gas safety check do not need three different contacts. Being Gas Safe registered and set up for reactive repairs covers both under one number.

How it works

No mystery, no surprise invoice

  1. Tell us about the property

    Send the form or call with the address, the tenant’s number, and what you need — a one-off repair or ongoing compliance.

  2. We agree the price first

    You get a price before an engineer starts. If a repair turns into something bigger, we stop and tell you before going further.

  3. Done, and documented

    The job is finished and tested, and the certificate or record comes to you for your file.

Areas we cover

Plumbers across London

Our engineers work across the London boroughs, from the City and Westminster out to Croydon, Harrow and Enfield. The office is in Fulham.

Croydon, Bromley, Fulham, Wandsworth, Harrow, Balham, Islington, Hackney, Ealing, Clapham, and 41 more areas across London.

Questions

How often do I need a gas safety certificate?

Every 12 months for a rented property, and a new tenant must be given a copy before moving in. Our gas safety certificate page covers what is involved.

Can you manage compliance across several rental properties?

Yes — tell us the properties and their renewal dates and we will work to them, rather than treating each one as a one-off.

Do you deal directly with tenants?

Yes, we can arrange access and updates directly with a tenant once you have introduced us, so a repair does not have to go through you at every step.

How fast can you respond to a tenant repair request?

It depends on the nature of the repair — call the booking line and describe it and we will tell you honestly.

New-customer offer

£25 off your first call-out

Book a repair or gas safety check today and the discount comes off the first visit.

New customers only. Cannot be combined with other offers.

Prefer to write? Send the booking form and we’ll come back to you with a price.