Relax... you have found a reliable heating engineer in Ilford. Britannia Heating Solutions Ltd is a friendly and reliable company based in Ilford who consider no job as too big or too small. Qualified, professional heating engineers with years of experience in the industry.
"I have a Vaillant boiler eco tec plus 832. The water pressure goes up to 3.1 bar points by itself. Then water is taken out of radiators to bring the pressure down to 0.8. but after a few days it goes back up to 3+ again. Possibly expansion vessel needs a fix or replacement. Please message on..."