Our Accreditation, and What it Means For You

CERTASS is an organisation which is licensed by the Department for Communities and Local Government. This means that members are fully vetted and approved to ensure they are in accordance with current Building Regulations. This means you can have complete peace of mind knowing that we have the relevant qualifications and experience. Take a look at our short video below which explains more. As a member of CERTASS we are assessed for the following factors, by choosing us your choosing creditability:

Our Trading Financial status | Offering of an insurance backed guarantee | Sample installations annually inspected

Our Window installations meet current thermal regulations | Estimates are provided in plain language

We adhere to “7 day cooling off legislation” | Guarantee wording is fair | Operate a complaints handling procedure


Unmatched thermal performance, keeping the cold out and the warmth in.

Noise Reduction

Designed to significantly reduce outdoor noise, so when you want to relax you will know the outside world wont be a distraction.


Security is at the top of our list, which is why we have an extensive range of quality security features. Giving your home the protection it deserves.

Low Maintenance

Remain smart and attractive, with surfaces that are easy to clean and virtually maintenance-free designs.

Energy Efficient

We know you’ll be pleased at how our windows & doors and their ability to retain heat could save you money on your heating bills.


We offer a comprehensive guarantee that will give you peace of mind that when you buy from Vulcan, you are getting the highest quality product backed with our after sale support.


Our FAQ section covers a wide range of topics. If you don't find an answer to your question, get in touch with us and a member of our friendly team will be on hand to help.

Certass is a UKAS approved certification scheme that checks individual contractors and companies competence against set standards.
Certass is a government approved Competent Person Scheme (CPS) in England and Wales and was granted its license in 2006. You can check the validity of there government approval by visiting the Communities and Local Government’s website at www.communities.gov.uk Certass checked annually by UKAS (United Kingdom Accreditation Service)
Competent Person Schemes were set up by the government to provide an alternative to submitting a building notice or to using an approved Local Authority inspector for certain home improvements. Members are able to self-certify that their work meets current building regulations and are able to register work with the local authority on behalf of the homeowner.
Certass inspects a percentage of our work to ensure that current standards of building regulations are being complied with.
Certass will issue the Building Regulation Compliance Certificate directly to the you within 7 working days of receiving notification of the completed works from us.
Since 1st April 2002, all replacement window and door installations must be covered by a Building Regulation Compliance Certificate issued either from a member of an authorised Competent Person Scheme or directly from the building control department of your local authority.
We would recommend calling Certass on 01292 292099 If your details have been registered they will check the date your certificate was posted to you. If you haven’t received your certificate and it’s within 28 days of our original date of issue, they will send you another certificate free of charge by 2nd class post witihin 7 working days. There will be a small charge of £10 inclusive of VAT for any certificate they re-issue where 28 days or more has passed since the original date of issue. If your installation is not registered, please contact your us directly on 01482 440270.
Certass will notify your local authority of your completed installation once we have completed all work.
All homeowners that have had replacement windows and door installations fitted after 1st April 2002 are required to have a Building Regulation Compliance Certificate for their completed works. It is important that you can produce a Building Regulation Compliance Certificate to show that installation complied with the building regulations at the time the work was carried out. If the installation does not comply with building regulations, the work will not be legal and you could be prosecuted and fined up to £5000.
Contact Certass on 01292 292099 and you can order a replacement. There is a small charge of £10 including VAT for replacement certificates ordered 28 days after original issue date.
No, these are outside of the Certass remit. For further information on these, you need to contact the building control department of your local authority. Alternatively give us a call to discuss this further.
Yes, as a Certass registered Competent Person contractor we are required to provide an insurance policy, to cover our own guarantee, should we cease trading.
It is important that in the first instance, you bring your complaint to our attention. Under the Certass rules for dealing with customer complaints, we have agreed to acknowledge your email or postal complaint within 3 working days and to provide a full response to your complaint within 10 working days. If it hasn’t been possible to respond fully within 10 working days, we will keep you informed on the progress of the investigation. If you are still dissatisfied once all these stages have been followed, you may apply to Certass for an independent investigation of your complaint.


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