Guarantees and Accreditations

1st Advanced Maintenance Services have been established 21 years and have over 27 years experience in the heating industry. We constantly keep updated with new training and technology through our working partnership with Worcester Bosch.


All newly installed boilers are guaranteed for 2 years subject to warranty specifications.

Worcester Bosch 7 year Guarantee*

We are an accredited Worcester Bosch installer, our confidence in the excellence of their product, strengthened by their 7 year guarantee.
* Please remember that annual servicing validates your guarantee.


Public liability cover with AXA Insurance £2m

Professional accreditations:

Worcester Bosch
Gas Safe Register: 190689
Blue Flame Certification for the Installation and Maintenance of Domestic Unvented Hot Water Storage Systems

Local accreditations:

thebestofrichmond Checkatrade

Worcester Boiler Guarantee Haslemere
Boiler Guarantee Hindhead
Types of Boiler Godalming
Worcester Boiler Guarantee Grayshott
Boiler Engineer Grayshott