Contact Stroma Certification

Contact Stroma Certification

How can we help?

Do you have a question about one of our certification schemes or training courses? Our friendly customer service and sales teams are available to discuss our simple application process and would be happy to answer your questions.

Our customer service and sales teams are proud to serve energy assessors, installers and businesses in the construction and energy industries. We consistently receive positive feedback and comments from our customers and members about our prompt, friendly service and response to your queries. Please contact our Head Office to speak directly with an advisor or alternatively complete a Customer Callback Form and we’ll call you back.





Customer Services


0845 621 11 11

0845 621 11 12


Our dedicated customer services and sales team are available to help you 08.30-17.30 (Mon-Thu) and 08.30-17.00 (Fri).

Sales Support

Customer Services

0845 621 11 11 (EXT 601)
certification@stroma.com

Assessor Enquiries

0845 621 11 11 (EXT 603)
info@stroma.com

Installer Enquiries

0845 621 11 11 (EXT 622)
applied@stroma.com

GDAO Enquiries

0845 621 11 11 (EXT 604)
greendeal@stroma.com

Training Enquiries

0845 621 11 11 (EXT 611)
training@stroma.com

ISO Enquiries

0845 621 11 11 (EXT 603)
info@stroma.com


Technical Support

DEA, domestic GDA & Tracker Mobile

0845 621 11 11 (EXT 614)
domestic@stroma.com

NDEA, DEC, ACEA & non-domestic GDA

0845 621 11 11 (EXT 610)
technicalsupport@stroma.com

Code for Sustainable Homes & CORE

0845 621 11 11 (EXT 608)
csh@stroma.com

DOCEA, SAP & FSAP

0845 621 11 11 (EXT 608)
sap@stroma.com

ECO & ECO Scoring Tool

0845 621 11 11 (EXT 615)
eco@stroma.com

GDAO & Installer

0845 621 11 11 (EXT 607)
certified@stroma.com

ESOS

0845 621 11 11 (EXT 615)
esos@stroma.com



About Stroma Certification

Stroma Certification Ltd is a limited company registered in England and Wales.

Company Registration No. 6429016
Registered Office: 4 Pioneer Way, Castleford, West Yorkshire, WF10 5QU
London Office: i2Office, 6 Bevis Marks, London, EC3A 7BA

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Our office locations


Stroma Head Office
inc. Stroma Certification & Stroma Software

Castleford
Stroma Tech
Wakefield
Approved Design
Cannock
London
BBS
Kent
Petts Wood
Berkshire
Truro
Rugby
Essex
Greendoor
Durham
Wakefield
Teeside
London
Kent
Watford



4 Pioneer Way, Castleford, West Yorkshire, WF10 5QU

T | 0845 621 11 11*



©Stroma Certification Ltd 2024

*Calls cost 7p per minute plus your phone company’s network access charge or call 01977 665420.