Scores based on 40 reviews

Reliability & timekeeping

Invoice history based on 29 reviews.

Invoice History
Charged as per quote / estimate96.55%
Above quote / estimate: kept informed3.45%
Appointments reported as missed (6 months) 0
Average score 9.84
40 reviews
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With over 20 years’ experience in the heating industry from design to installation, we are able to meet your plumbing and heating needs.

We will attend your home to complete a free full survey where 

We will give you practical and helpful advice on the most appropriate boiler system that meets your needs, at a competitive rate.

All Vaillant boilers fitted by Gastec will be supplied with a 7 years’ full parts and labour warranty as standard and an optional warranty upgrades can be purchased.

Our Services


  • Full central heating installations
  • Boiler replacements 
  • Boiler break down and repairs 
  • Boiler servicing 
  • Landlord gas safety checks 
  • System flushing  


  • Radiator and valves replacement
  • Tap repairs and replacements
  • Toilet repairs and replacement
  • Burst pipes, leaks and blockages 
  • Hot water problems 

Bathroom installations

  • Full bathroom Installations and refurbishments         
  • Including tilling        
  • Shower installations 
  • Bath installations and replacements

Kitchen installations

  • Full Kitchen installations and refurbishments can include
  • Tiling 
  • Sink and tap replacement
  • Washing machine and dishwasher installations 
  • Outside tap installation 


Based in

Stevenage, Stevenage, Hertfordshire

Works in

Stevenage, Letchworth Garden City, Welwyn, Hitchin, Welwyn Garden City, Hertfordshire