Petra O’Brien is no longer available. Covering Central, South & West London

She covers: Balham, Battersea, North Bromley, Chiswick, City of London, Clapham, Croydon, Merton, Richmond and  Twickenham

We are constantly seeking new female plumbers and gas engineers to cover this area. If your problem is related to taps or toilets please try our Tap, Traps and Toilets Doctor covering this area by clicking here

We apologise for any inconvenience. If you are on our list we will contact you as soon as we have found a new plumber/gas engineer to serve this area.


To contact us

0800 8620010 
or use the contact form here

Petra - Stopcocks Plumber
Petra - Stopcocks Plumber


  • Landlords Gas Safety checks
  • Full gas central heating
  • Boiler repairs
  • Boiler installation
  • Move/install radiators
  • Underfloor heating, install and repair
  • All aspects of plumbing
  • Diagnosis of all kinds a speciality

What our customers say about Petra

Petra’s Qualifications

City and Guilds level 3 in Plumbing 2012

Level 2 NVQ in Plumbing 2012

Level 3 NVQ in Plumbing 2013

Gas Safe 2015

BPEC Underfloor Heating, installation and maintenance 2018

Trained to design, install and commission Ground Source Heat Pumps

She loves coming up with solutions and completing a job well. Petra is especially skilfull at diagnosis of problems.

More about Petra

A need for self-direction in Petra’s life meant a quick turnaround in jobs including cleaning, auxiliary nursing (Croatia) caretaker (Croatia) war interpreter (Croatia) bar-maid, shop assistant, childminder, full time carer for a cancer patient, mother, daughter.

Finally finding a passion as a plumber and the combined control and flexibility of self-employment.

Petra joined Stopcocks to become our Woman Plumber in Balham in 2011 and completed her City and Guilds and Level 2 NVQ before the rest of her colleagues in college following that up by completing her NVQ 3.

She completed her Gas Safe Certification in September 2015, then her BPEC qualification in installation and repair of underfloor heating systems and most recently trained in design, installation and commissioning of ground source heat pumps.

 “I’m so lucky to have found a job that I really love. It’s often challenging but there’s no better feeling than the pride I get when a customer is delighted with the end result”