10 Year Guarantee on All of Our Installed Products*


At DDG Windows we offer a 10 year guarantee on all* of our installed products, so if you have any issues with your windows and doors, that are due to manufacturing problems we will repair or replace them free of charge for up to 10 years after the installation date

  • 10 Year guarantee against discoloration of uPVC profile on uPVC casement and tilt turn windows
  • 10 Year guarantee against fog and condensation between the panes of the sealed units
  • 10 year guarantee against discoloration of the profile on Aluminium windows
  • 5 years guarantee for integral blind mechanism  
  • Excludes breakage of glass units, locks & hinges after job is completed. Guarantee does not cover any access equipment [cranes, scaffold etc.]


*Different terms may apply on different product type / projects from time to time. Please enquire within.


Below are the terms and conditions of contracts made between DDG Windows (“the Company”) and customers (“the Customer”):

(1) THE Company will sell provide and install the items detailed overleaf which the Customer agrees to purchase and have installed. No alteration or variation of the terms and conditions of this contract shall or will be accepted by the Company unless such alteration or variation is signed by the Directors of the Company. The Customer must ensure that any statement made on behalf of the Company prior to or at the signing of this contract which statement is not included in this contract is specified in writing overleaf and signed by the Directors or their duly authorised representative.

(2) THE Customer will allow the duly authorised representative of the Company access to the premises where the installation is to be carried out and allow the Company’s representatives the right to make their survey and effect installation.

(3) THE Company will supply the items square to specification. The Company will fit a timber filler where the Customer’s existing timber subframe is not square. All timber filler supplied will be of soft wood unless otherwise specified.

(4) IT will be the responsibility of the Customer to final finish any primed timber.

(5) THE Company will use good quality float gloss. The Company will not be responsible for any minor seeds or blemishes not guaranteed to the Company by the manufacturers of the glass.

(6) THE Company undertakes to use all reasonable care in removing existing windows or doors. The Company will not be liable for any damage or disturbance to external and interior decorations. Unless specified overleaf the Company will not provide window frames, sills or boards.

(7) THE Company shall not be liable for any delay in the completion of the work which arises from causes beyond reasonable control of the Company and time for the delivery and/or installation is not of the essence of the contract.

(8) THE balance of the purchase price will be paid immediately on delivery or installation and payment is to be made to the installer as detailed overleaf or by completing the documents required by the Finance Company.

(9) ANY sums not paid by the Customer on delivery or installation will be compounded and the Customer will be required to pay interest monthly at 2%.

(10) WHERE the Customer requires a loan from a Finance Company the Customer will use their best endeavours to obtain such a loan and if such a loan is refused by all Finance Companies to whom the Customer has made application then this contract will be rescinded and any deposit paid by the Customer shall be refunded in full.

(11) THIS contract is subject to the Company Surveyor’s inspection and report. If this contract is terminated by the Company the deposit paid by the Customer will be refunded in full.

(12) IF the Customer terminates this contract before the premises have been inspected by the Company Surveyor the Customer shall immediately pay the Company 10% of the total contract price.

After the Company Surveyor has taken measurements, the Customer shall immediately pay 30% to the Company and this contract shall not be subject to cancellation. Thereby the full contract price shall immediately become due and payable by the Customer to the Company.

(13) THE Company gives no warranty or guarantee concerning the incidence, prevention or elimination of condensation (except to that between the glasses of sealed units for five years). Guarantee does not cover for breakage of glass units, locks & hinges after job is completed.

(14) THE Company guarantees to repair or replace free of all charges for materials any items supplied and installed which are faulty due to defective materials or constructions within ten years from the date of the installation PROVIDED that immediate notice of such fault is given in writing by the Customer to the Company and that the Customer has maintained the items in a proper manner. This excludes wilful damage, and wear and tear. The first 5 years include call out, parts and labour, and the second 5 years include parts only – Labour will be charges at current rate for that time. The Guarantee is invalid if payment is not made in full. Further T&C apply.

(15) THE Company has the complete authority to remove any or all the windows)/door(s) installed if full payment is not paid duly within a specific period. If any window(s)/door(s) are to be removed the full reinstallment charge will be paid by the Customer.

(16) THE Customer has the complete authority to retrieve any or all defective or faulty windows)/door(s) to the Company’s premises for complete and thorough inspection.

(17) THE company does NOT carry out any electrical/decoration works. These works are NOT included in our price or scope of works, unless specified. These works, will have to be sourced by the customer on their own merit.


Privacy Notice

This Privacy Policy Statement sets out how & why DDG Windows Ltd. uses and protects any information you give us. DDG Windows Ltd Review this policy regularly and may change this policy without notice. You should check our policy here to ensure that you are up to date with any amendments. 

This policy was last updated and is effective from 01/09/2022.
Privacy Policy – What information we collect 
We may collect the following information:
• name and title
• contact information including mobile, landline & email address
• other information relevant to customer surveys and / or offers
What We Do With & How Long We Store The Information We Gather
We require this information to understand your needs and provide you with information, quotations or provide a service.
If you have contacted us and requested information or a quote: The lawful reason we have for processing your information is consent.
In this case we will keep your details on record for a minimum of 3 months and a maximum of 2 years.
Where you decide to purchase goods or enter a contract for products or a service: our lawful reason for processing your data is contract:
As most of our products have a 10 year Guarantee we will hold records for a 10 year period, unless otherwise instructed.
Internal Record Keeping 
We may use the information to improve our products and services.
Opt in / Opt Out
We may periodically send a promotional email about new products, special offers or other information which we think you may find interesting using the details you have provided
Privacy Policy – Security of Information 
We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure DDG Windows Ltd. have suitable safeguards in place to protect the information we hold on file.
Privacy Policy – How we Use Cookies 
A cookie is a small file which asks permission to be placed on your computer’s hard drive. Once you agree, the file is added and the cookie helps analyse web traffic or lets you know when you visit a particular site. Cookies allow web applications to respond to you as an individual. The web application can tailor its operations to your needs, likes and dislikes by gathering and remembering information about your preferences.
We use traffic log cookies to identify which pages are being used. This helps us analyse data about web page traffic and improve our website in order to tailor it to customer needs. We only use this information for statistical analysis purposes and then the data is removed from the system. Overall, cookies help us provide you with a better website, by enabling us to monitor which pages you find useful and which you do not.
A cookie in no way gives us access to your computer or any information about you, other than the data you choose to share with us. You can choose to accept or decline cookies. Most web browsers automatically accept cookies, but you can usually modify your browser setting to decline cookies if you prefer. This may prevent you from taking full advantage of the website.
Privacy Policy – Link To External Website 
Our website may contain links to other websites of interest. However, once you have used these links to leave our site we are no longer responsible for your Data. Therefore, please be vigilant you should review the privacy policy statement applicable to the website in question.
Privacy Policy – Controlling Your Personal Information 
You may choose to restrict the collection or use of your personal information in the following ways:
We will NEVER pass your information to any outside company for marketing purposes.
However when you are asked to fill in a form on our website, look for the box that you can click which indicates how and when we can use your DATA.
If you have previously agreed to us using your personal information for direct marketing purposes, you may change your mind at any time by writing to or emailing us.
We will not sell, distribute or lease your personal information to third parties unless we have your permission or are required by law to do so. We may use your personal information to send you promotional information about third parties which we think you may find interesting and only if you have previously given consent for this to happen.
You Have The Right to:
• Be Informed
• Access
• Rectification
• Be Forgotten
• Object
If you believe that any information we are holding on you is incorrect or incomplete, please write, email or call us as soon as possible, using the details below. We will promptly correct any information found to be incorrect.

DDG Windows Ltd101 Wantz Road, Dagenham, RM10 8PS
If you have any queries or concerns please contact our main office on 0208 514 0819.

















Enquire about your new windows and doors today - call us on 0208 514 0819