MCS Domestic Installation Terms & Conditions
These Terms and Conditions (“terms”) apply to domestic renewable energy installations carried out by Greenio Ltd where the installation falls within the scope of our MCS certification.
They should be read together with your Greenio quotation, system design, performance estimate, MCS customer commitment and other documents identified as forming part of your contract.
1. Who This Contract is Between
This contract is between Greenio Ltd (the "Installer", "Greenio", "we", "us" or "our") and the customer named in the quotation (the "Customer", "you" or "your").
Greenio Ltd
Unit 1, Denham House
Long Bennington Business Park
Long Bennington
Newark
NG23 5JR
Company number: 08755282
Email: info@greenio.co.uk
These terms are intended for a consumer buying an MCS-certified renewable energy installation, for domestic use.
If the customer is a business, commercial landlord, developer, organisation or other non-consumer, separate commercial terms may apply.
2. Documents That Make up Your Contract
Your contract consists of:
- your written quotation and cost breakdown;
- the agreed system design and product specification;
- the applicable system performance estimate;
- these terms and conditions;
- the MCS customer commitment;
- the cancellation information and cancellation form, where applicable;
- applicable warranty, guarantee and financial protection information;
- any written variation agreed after the contract is made; and
- any other document that the quotation clearly states forms part of the contract.
If there is an inconsistency, a later written variation signed or otherwise clearly accepted by both parties will take priority for the matter it changes.
We will not rely upon an oral change that has not been confirmed in writing.
Nothing in these terms affects your statutory rights.
3. What Greenio Will Provide
We will supply and install the goods and services described in your quotation and system specification.
The quotation will identify the main products being supplied, including the make, model, power rating and storage capacity where relevant.
We will carry out the installation with reasonable care and skill and, where the work is within our MCS certification scope, in accordance with the applicable MCS standards, scheme requirements and relevant legal and regulatory requirements.
We will tell you before entering into the contract about any permissions, approvals or notifications that we know are required and whether Greenio or you are responsible for obtaining them.
Depending upon the installation, these may include:
- planning permission;
- Building Regulations requirements;
- electricity Distribution Network Operator (DNO) approval or notification;
- listed building or conservation requirements; and
- other property-specific permissions.
4. Price and What is Included
The total contract price is the price shown in your quotation.
The quotation will clearly show the price before VAT, the VAT amount and the total price including VAT, where VAT applies.
The quotation will identify what is included in the price, which may include:
- equipment;
- materials;
- labour;
- scaffolding;
- access equipment;
- delivery;
- system design;
- installation;
- commissioning;
- certification; and
- other agreed items.
We will not add hidden charges.
If an item is excluded or may result in an additional charge, this will be identified in the quotation.
If unforeseen work becomes necessary after the contract is agreed, we will explain:
- what is required;
- why it is required;
- the additional cost; and
- any effect on the installation programme.
Except where urgent work is reasonably required to make the property safe, we will obtain your agreement to a written variation before carrying out additional chargeable work.
5. Payment Terms and Deposit Protection
Unless your quotation states a different agreed payment schedule, Greenio's standard payment schedule is:
25% deposit – when you accept the quotation and enter into the contract.
45% payment – before installation, on the date stated on our invoice.
30% final balance – when the agreed installation work is complete, subject to any agreed outstanding items.
The amount and due date of each payment will be clearly stated in your quotation and/or invoice.
Where required under the MCS scheme, Greenio will provide appropriate protection for deposits and advance payments.
We will provide you with details of the applicable financial protection arrangements and explain what is protected and any action you need to take.
If you reasonably dispute part of an invoice, please tell us promptly and explain the reason for the dispute.
Any undisputed amount should still be paid when due. We will work with you to resolve genuinely disputed amounts fairly.
6. Quotation Validity and Price Changes
Unless stated otherwise, a Greenio quotation is valid for 30 days from its date.
Once you have accepted a fixed-price quotation, we will not increase the price simply because our normal labour, transport or material costs increase.
The price may change where:
- you request a change;
- a survey or technical assessment identifies something that requires the design to change;
- a DNO requirement affects the proposed installation;
- a planning or Building Regulations requirement affects the proposed installation;
- unforeseen site conditions are discovered that could not reasonably have been identified beforehand;
- information provided to us before the quotation proves materially inaccurate; or
- a change in law, taxation or regulatory requirements directly affects the work.
Any proposed price change will be dealt with as a written contract variation under Section 10.
7. Installation Dates and Delays
Your quotation will provide an estimated installation date or lead time and the expected duration of the work.
We will agree the programme with you and keep you reasonably informed of progress and communicate any changes.
Installation dates may need to change because of circumstances including:
- adverse weather;
- DNO decisions;
- planning or Building Regulations matters;
- supply chain disruption;
- product availability;
- unsafe site conditions;
- illness;
- industrial action; or
- other circumstances outside our reasonable control.
If this happens, we will tell you as soon as reasonably possible and provide a revised estimate.
If a delay becomes significant, we will discuss your options with you.
Nothing in these terms removes any statutory right you may have to require performance within an agreed or reasonable time or to end the contract where the law gives you that right.
8. Your Responsibilities
You agree to:
- provide accurate information reasonably required to design and carry out the installation;
- provide safe and reasonable access to the property at agreed times;
- tell us about known hazards, including asbestos or suspected asbestos, fragile roofs, hidden services and structural problems;
- provide access to electricity, water, toilet/welfare facilities and reasonable storage space where reasonably required;
- keep children, pets and other people away from the working area when reasonably requested for safety;
- obtain permissions where the quotation clearly states that they are your responsibility; and
- take reasonable care of equipment delivered to your property where we have agreed that it will be stored there before installation.
If you arrange your own scaffolding, roofing, building work or other preparatory work, it must be suitable, safe and ready at the agreed time.
If it is not, we may need to postpone the installation.
We will tell you about any reasonable additional cost before charging you.
9. Subcontractors
Greenio may use competent and appropriately insured subcontractors for parts of the installation, including work such as scaffolding or roofing.
Where required, we will tell you who will be carrying out work at your property and explain their role.
Greenio remains responsible and accountable to you for work carried out by subcontractors acting on our behalf.
10. Changes to the Contract
Any change to the agreed:
- products;
- system design;
- price;
- estimated performance;
- scope of work; or
- installation timescale
will be confirmed in writing as a contract variation.
The variation will explain the proposed change and its effect upon price, performance and timing where applicable.
We will ask you to accept the variation before it becomes binding.
If a change following detailed design or technical assessment is significant, you may choose not to proceed with the revised contract.
Where required by the MCS customer commitment or applicable consumer legislation, you may cancel without further cost, obligation or liability and receive a refund of your deposit or pre-payment, subject to any lawful amount properly due for work you specifically requested and that has already been carried out.
11. Your Statutory Right to Cancel
If this is a distance or off-premises consumer contract and the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 apply, you will normally have 14 days in which to cancel without giving a reason.
For a service contract, the cancellation period normally runs for 14 days from the day after the contract is entered into.
Different rules can apply to goods, mixed contracts and particular circumstances.
We will provide the required cancellation information and a model cancellation form where legally required.
To cancel, you only need to make a clear statement that you wish to cancel.
You may use our cancellation form, but you do not have to notify us in writing.
If you expressly ask us to begin providing services during the 14-day cancellation period and subsequently cancel before those services are complete, you may be required to pay a reasonable amount for services supplied up to the point of cancellation where the law allows us to do so.
We will not begin work during the cancellation period on this basis unless we have obtained the express request or consent required by law.
If a service has been fully performed during the cancellation period following your express request and the legal conditions for loss of the cancellation right have been satisfied, your cancellation right for that service may end.
Any additional cancellation promise made by Greenio operates in addition to your statutory rights and does not replace or reduce them.
12. Cancellation After the Cooling-off Period
If you wish to cancel after any applicable statutory cooling-off period has expired, please contact us as soon as possible.
We will act reasonably and will not impose an automatic or disproportionate cancellation penalty.
We may recover amounts that are fair and legally recoverable, which may include:
- reasonable costs already incurred;
- work already completed;
- non-returnable or bespoke goods properly ordered for your project; and
- direct losses reasonably resulting from the cancellation.
We will explain any amount claimed.
Where appropriate, this will be deducted from sums already paid and any remaining balance will be refunded.
13. Goods, Delivery, Ownership and Risk
We will arrange delivery at a reasonable time and provide reasonable notice where necessary.
You should tell us promptly if goods appear damaged or incorrect.
Nothing in these terms removes your statutory rights where goods are:
- faulty;
- not as described;
- not of satisfactory quality; or
- not fit for a purpose made known to us where the applicable legal requirements are met.
Risk in goods will pass in accordance with applicable consumer law.
Ownership will pass as stated in the quotation or, where the quotation is silent, when the goods have been supplied and paid for in full, to the extent permitted by law.
14. Quality of Goods and Services
Your statutory rights are not excluded by these terms.
Goods supplied under a consumer contract must meet the requirements of the Consumer Rights Act 2015, including being as described, of satisfactory quality and fit for purpose where the relevant legal requirements apply.
Services must be carried out with reasonable care and skill.
Where information we provide about a service is treated by law as binding, that information will form part of the contract.
If goods or services do not meet the required legal standard, you may have statutory rights to remedies including:
- repair;
- replacement;
- repeat performance;
- price reduction;
- rejection; or
- refund,
depending upon the circumstances.
Greenio and manufacturer warranties are provided in addition to these rights.
15. Warranties and Financial Protection
Your quotation or supporting documentation will identify the guarantees and warranties applicable to your installation, their duration and any reasonable requirements for maintaining them.
Unless your quotation provides a longer period, Greenio provides a 2-year workmanship warranty for defects caused by our installation work.
This does not affect your statutory rights.
Product warranties are normally provided by the relevant manufacturer.
We will provide or identify the applicable warranty information and explain any registration or maintenance requirements of which we are aware.
For applicable MCS domestic installations, Greenio will provide the required written guarantees and appropriate MCS approved financial protection.
We will provide details of any applicable:
- deposit protection;
- insurance-backed guarantee; or
- other financial protection product
included with your installation, including what it covers and any action you need to take.
16. Existing Property, Asbestos and Third-party Work
Greenio is responsible for taking reasonable care while carrying out our work.
We are not responsible for defects in the existing property or existing equipment that we did not cause and could not reasonably have identified before work started.
If we discover suspected asbestos or another serious safety hazard, we may stop work until the area has been made safe.
We will explain what has been found and any effect upon the programme or cost before work resumes.
We are not responsible for defective work carried out by contractors appointed directly by you.
This does not affect our responsibility for our own work or subcontractors working on our behalf.
17. System Performance Estimates
Any estimated:
- electricity generation;
- energy savings;
- payback;
- self-consumption;
- export;
- carbon savings; or
- other system performance figures
will be prepared using the applicable MCS methodology and the assumptions stated in your quotation, performance estimate or design documents.
Actual performance may vary because of factors including:
- weather;
- shading;
- energy consumption;
- equipment settings;
- system availability;
- electricity tariffs;
- export rates; and
- changes to the property or surrounding environment.
Energy prices and tariffs can change.
You should therefore not enter into the contract solely on the basis of a particular future tariff, energy price or projected financial saving.
18. Completion and Handover
When the installation is complete, we will explain how the system operates and provide the relevant handover information.
Where applicable, this will include:
- key equipment information;
- operating instructions;
- health and safety information;
- maintenance recommendations;
- manufacturer warranties;
- Greenio guarantees;
- commissioning information;
- system design documentation;
- certification information; and
- information about monitoring or system applications.
For an MCS certified installation, Greenio will register the installation as required and provide the applicable MCS Certificate no later than 30 calendar days after commissioning, together with other applicable compliance documentation.
This may include Building Regulations compliance documentation and DNO notification or approval information where applicable.
If minor items remain outstanding at practical completion, we will agree what remains to be completed and a reasonable date for doing so.
19. After-sales Service and Maintenance
Greenio will provide information about any after-sales service or maintenance arrangements included with your installation.
Where additional servicing, maintenance, monitoring or support packages are available at an additional cost, these will be identified separately.
You should follow reasonable manufacturer and Greenio maintenance instructions to help ensure the safe and effective operation of your system and to protect applicable warranties.
If you experience a problem with your installation, please contact Greenio using the contact details provided in your handover documentation.
20. Complaints and Dispute Resolution
If you have a concern or complaint, please contact Greenio in the first instance:
Email: info@greenio.co.uk
or use the contact details provided in your quotation or Greenio complaints procedure.
We will acknowledge and investigate complaints and aim to resolve them fairly and within a reasonable period.
If your complaint relates to an MCS installation and we are unable to resolve it directly, you may be able to escalate the matter through the MCS complaints process.
Where a resolution cannot be reached through the MCS complaints process, the matter may be referred to an appropriate Alternative Dispute Resolution (ADR) provider in accordance with applicable MCS Scheme requirements.
Greenio will cooperate with the applicable MCS complaints and ADR procedures where required.
Nothing in this section removes either party's legal rights or prevents you from exercising any statutory remedies available to you.
21. Suspension or Termination by Greenio
We may suspend work if you:
- fail to make an undisputed payment when due;
- prevent reasonable or safe access;
- create a serious health and safety risk; or
- commit another material breach of the contract.
Except in an emergency or where immediate suspension is reasonably necessary for safety, we will give you written notice explaining the problem and a reasonable opportunity to put it right.
If a material breach is not remedied following reasonable written notice, we may end the contract.
Any amount payable following termination will be limited to sums that are fair, reasonable and legally recoverable, taking account of:
- work properly completed;
- goods properly committed to the project; and
- direct losses reasonably resulting from the breach.
22. Events Outside Our Reasonable Control
Neither party will be responsible for delay or failure caused by an event genuinely outside that party's reasonable control.
Examples may include:
- severe weather;
- fire;
- flood;
- widespread transport disruption;
- industrial action;
- war;
- government restrictions; or
- major supply chain disruption.
The affected party should tell the other as soon as reasonably possible and take reasonable steps to reduce the impact.
If a delay becomes substantial, we will discuss fair options with you, including whether the contract should continue.
23. Data Protection and Photographs
Greenio will handle your personal information in accordance with applicable UK data protection legislation and our Privacy & Cookie Policy.
We may process personal information where necessary to:
- provide your installation;
- arrange surveys and appointments;
- take payment;
- register and certify the installation;
- obtain DNO approval or make required notifications;
- arrange warranties and financial protection;
- comply with legal and MCS requirements; and
- provide aftercare or deal with complaints.
Information may need to be shared with relevant organisations, which may include:
- MCS;
- our MCS Certification Body;
- competent person schemes;
- your Distribution Network Operator;
- manufacturers;
- warranty providers;
- financial protection providers; and
- dispute resolution bodies.
Greenio will not rely upon these terms as automatic consent to use identifiable photographs of your property or installation for advertising, case studies or other marketing.
Where appropriate, marketing permission will be obtained separately.
24. Electronic Documents and Communications
Documents may be provided electronically.
We will use a format and method that is reasonably secure and allows you to access, save and retain documents for future reference.
Please tell us promptly if you cannot access a document so that we can provide it in another suitable format.
You should retain copies of your quotation, contract, design documentation, certificates, warranties and other handover information for future reference.
25. General Terms
If a court or other competent authority decides that part of these terms is invalid or unenforceable, the remaining provisions will continue to apply.
If either party does not enforce a right immediately, this does not mean that right has been waived.
These terms and the documents identified in Section 2 record the agreement between us.
They do not exclude any rights or remedies that cannot lawfully be excluded.
26. Governing Law
This contract is governed by the law of England and Wales.
If you are a consumer resident elsewhere in the United Kingdom, any mandatory consumer protections and jurisdiction rights applicable to you remain unaffected.
27. Before You Accept Your Contract
Before accepting the contract, please check that you have received and had a reasonable opportunity to review:
- your detailed written quotation;
- the total contract price, including VAT where applicable;
- your system specification and product details;
- the system design;
- the applicable system performance estimate;
- the proposed installation timetable or estimated lead time;
- the payment schedule;
- deposit protection information;
- applicable guarantees and warranties;
- applicable financial protection information;
- these terms and conditions;
- the MCS customer commitment;
- cancellation information and cancellation form where applicable;
- information about permissions and who is responsible for obtaining them;
- information about expected subcontractors where applicable; and
- any other documents identified in your quotation as forming part of the contract.
You should have sufficient opportunity to read and understand these documents before deciding whether to proceed.
If there is anything you do not understand, please ask us before accepting the contract.
Greenio Contact Details
Greenio Ltd
Unit 1, Denham House
Long Bennington Business Park
Long Bennington
Newark
NG23 5JR
Company number: 08755282
Email: info@greenio.co.uk
Cancellation Form
Complete and return this form only if you wish to cancel the contract. You do not have to use this form and may make any other clear statement that you wish to cancel.
To:
Greenio Ltd
Unit 1, Denham House
Long Bennington Business Park
Long Bennington
Newark
NG23 5JR
Email: info@greenio.co.uk
I/We hereby give notice that I/We wish to cancel my/our contract for the supply of the following goods/services:
Customer name: ______________________________________
Customer address: ____________________________________
Quotation/contract reference: ___________________________
Date contract entered into: ______________________________
Customer signature (if sent on paper): ____________________
Date: _________________________________________________
Greenio Ltd – MCS Domestic Installation Terms & Conditions
Version: September 2026


