SJ Building

SJ Building,Plumbing And Heating is a local company with a wide range of experience and services to offer. We are based in Northampton and cover all the surrounding areas within a 20-mile radius.When you are looking for a heating specialist it is essential that you find Gas Safe engineers who prioritise safety and high standards.With over 14 years in the industry SJ Building are able to provide solutions to most gas , heating and plumbing problems.Gas safe no 577809


  1. Gas Work
  2. Plumbing
  3. Central Heating
  4. Bathroom Fitting

About SJ Building

We install every type of combination, conventional or system boiler you could find on the market. We install all brands and models of boiler .
Our boiler installations come with warranties from 2 year up to 10 years dependant on the manufacturer you choose.
I can offer extended warranties with the following manufactures
Atag ,Vaillant ,Worcester Bosch, Intergas , Ideal , Glow-worm , Baxi , Potterton , etc .
We cover all plumbing works. We would be happy to install, assist and offer any advice on any plumbing issue and come to the best solution for all parties.
We cover a lot of work for Landlords as well as private home owners. We are always looking to help anyone in anyway.
We cover all heating installations, breakdowns and maintenance contracts. We are registered with most boiler manufacturers and trained yearly to keep up to date with everything concerning boilers.
We offer unbeatable deals on new boiler installations
Service boiler and installation, power flushing ,plumbing, gas , systems and appliances .


More than 14 years experience in , plumbing , central heating, gas safe, kitchen specialist, bathroom specialist .

NVQ plumbing level 3
ACS Core gas Safety
Gas appliances
Water heaters
Unvented hot water
Pipe work
CPA1 Combustion analysis
Gas safe registered (reg. no. 577809 )