Scores based on 29 reviews

Reliability & timekeeping

Invoice history based on 18 reviews.

Invoice History
Charged as per quote / estimate94.44%
Above quote / estimate: kept informed5.56%
Appointments reported as missed (6 months) 0
Average score 9.97
29 reviews
  • Interviewed by Checkatrade
  • 4 accreditations checked
  • Insurance checked
  • ID checked
  • Address checked
  • References checked
  • VAT registered
  • Checkatrade standard signed

J M Harji has been established since 1984 and over the years we have built up a reputation for honest, high quality work. We aim to always provide an efficient and quality job to all our customers.  The company has been handed down form father to son in 2013. 

Prior to this I worked as a specialist heating installation engineer for British Gas for 7 years. This time was solely dedicated to heating installations which has given me a wealth of experience with all type of heating systems. 

The services that we specialise in are: -

  •   - Boiler replacements - Full heating systems - Unvented cylinder installation - Heating upgrades - Power flushing - Gas installations - Complex heating / plumbing installations 

 Our current accreditations: - Gas safe registered - NICEIC Unvented licence (for 'megaflo' systems) - Vaillant accredited installer (benefits from extended boiler guarantee) - Member of CIPHE 

We are committed to ensuring that every customer has the right solution to meet their specific needs and the requirements of their property. 

 Thank you for taking the time to visit our page.   We look forward to hearing from you.

Based in

Harrow, Greater London, HA2 9QE

Works in

Harrow, Northwood, Watford, Stanmore, Ruislip, North West London