MCS Terms of Service

MCS Domestic Installation Terms & Conditions

These Terms and Conditions (“terms”) apply to domestic MCS-certified solar PV and battery storage installations. EV charging work is covered only to the extent identified in the quotation and applicable certification and legal requirements.

These terms apply to domestic renewable energy installations carried out by Greenio Ltd within our MCS certification scope. Read them alongside your quotation, system design, performance estimate, MCS Customer Commitment, financial protection information and documents expressly incorporated into your contract.

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.

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.

The quotation and project-specific schedules identify the agreed system and payments. No document or variation will override mandatory consumer rights or MCS requirements; where provisions conflict, the legally required customer protection prevails.

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.

Greenio will tell you in writing where the proposed work could adversely affect an existing roof, building or product warranty, and obtain your written permission before proceeding where required.

We will assess site and roof suitability, including the need for specialist structural advice where indicated by survey findings, and explain who arranges and pays for any necessary assessment.

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.

The quotation will state any relevant unit or time rates used to calculate properly agreed additional work and set out exclusions and foreseeable ancillary costs where practicable.

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.

35% payment – before installation, on the date stated on our invoice.

40% 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 through IWA.

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.

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.

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.

Where a substantial delay materially affects the agreed contract, we will explain the available options, including any applicable right to cancel or seek a remedy.

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.

You should tell us about any current roof, building or equipment guarantees that might be affected.

Greenio will not treat this obligation as removing its duty to assess site suitability or provide relevant written warnings.

SUBCONTRACTORS

Greenio manages and remains responsible for the design, installation, commissioning and handover of your renewable energy system.

Greenio presently uses its own installation personnel for solar PV and battery installations and may use competent and appropriately insured specialist subcontractors for supporting work such as scaffolding.

If subcontractors or other third parties will carry out any part of the work at your property, we will identify their role and, where required, their identity before that work begins.

Any future use of roofing installation subcontractors will be disclosed and controlled under Greenio's competence, supervision and quality arrangements.

Greenio remains responsible to you for work undertaken by subcontractors acting on our behalf.

This does not alter the separate responsibilities of contractors directly appointed by you.

CHANGES TO THE CONTRACT

Changes to products, design, price, anticipated performance, installation scope or programme must be described in a written variation.

We will explain the reasons and consequences, including any price, performance, permissions or timetable effects, and obtain your agreement before the change becomes binding.

We will provide revised estimates or designs where the change affects the information originally supplied.

If a change arising after detailed design or technical assessment is significant, you may either accept the revised proposal or cancel the installation contract without further cost, obligation or liability.

If you cancel on that basis, Greenio will refund deposits and prepayments paid under that installation contract in full, in accordance with the MCS Customer Commitment.

No deduction for preliminary design or survey work will be made from that refund under this clause.

A separate service expressly contracted and supplied independently of the cancelled installation contract will only be chargeable where this has been clearly agreed in advance and is permitted by law.

Your statutory cancellation rights remain unaffected.

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.

For distance and off-premises contracts we will identify which statutory cancellation rules apply to the actual contract (including any rules concerning goods, services or mixed supply-and-install contracts), and provide the correct period, trigger date, notice and form on a durable medium before the contract is binding.

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.

We will provide an itemised explanation of any lawful cancellation charge, taking account of reasonable mitigation and any recoverable value of goods.

We will not charge a fixed cancellation penalty merely because the cooling-off period has expired.

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.

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.

WARRANTIES AND FINANCIAL PROTECTION

Greenio will provide a written guarantee for the design and workmanship of each applicable MCS installation.

Greenio provides a six-year design and workmanship guarantee from installation completion for eligible MCS installations, as set out in the separate written guarantee supplied to you.

The executed customer guarantee provided with your contract or handover documents sets out the operative duration, scope, exclusions and claim procedure.

Greenio will arrange an MCS-accepted financial protection product for applicable installations in accordance with scheme requirements.

Where IWA protection is supplied, it covers only the technologies, amount, period and events expressly specified in the policy issued for your project.

A six-year IWA insurance-backed product must not be confused with a manufacturer's product warranty or with separate deposit insurance.

The quotation or accompanying guarantee schedule will identify:

(a) Greenio's written design and workmanship guarantee and its start date;

(b) Individual equipment manufacturers' warranties and any registration or maintenance conditions; and

We will explain any conditions and provide the applicable documents.

Warranties and financial protection supplement, and do not replace or restrict, rights available under the Consumer Rights Act 2015 or other applicable law.

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.

Where the installation may invalidate an existing roof or other property warranty, we will inform you in writing and obtain written agreement before proceeding as required by the MCS Customer Commitment.

Our exclusions do not apply to damage caused by Greenio or its subcontractors.

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.

The quotation or accompanying estimate will set out relevant calculation methodology and assumptions, including generation, consumption, tariffs, shading and battery use as applicable.

Estimates are not guarantees of savings or payback, and we will identify any material design changes affecting them.

COMPLETION AND HANDOVER

When the installation is complete, Greenio will explain safe operation, shutdown and isolation, controls, monitoring, routine checks, maintenance, warning indications and how to obtain assistance.

We will check you are satisfied with the completed installation and record any snagging items and an agreed date for remedial work.

Your handover information, as applicable, will include:

Equipment details and manuals;
As-installed system design and relevant diagrams;
Commissioning and test records;
Safety information;
Maintenance requirements;
Product warranties and Greenio design/workmanship guarantee;
Applicable financial protection information;
Monitoring instructions; and
Certification and regulatory documentation.

For MCS-certified work Greenio will register the installation and raise the MCS Certificate within 30 calendar days after commissioning and provide it to you within the applicable MCS timeframe.

We will also supply the applicable documentation required by the MCS Customer Commitment within 30 calendar days of installation completion, including Building Regulations compliance documentation and DNO permission or notification evidence where relevant.

If an external authority controls a document's issue, we will explain its status and provide it promptly when issued, without misrepresenting any mandatory deadline.

Minor outstanding items do not remove our duty to complete agreed remedial works or any statutory duties.

The customer will be given a record of handover and any outstanding actions.

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.

We will give you clear instructions for reporting faults or suspected safety issues.

Where a serious safety issue is notified, we will respond appropriately and prioritise making the system safe, consistent with applicable MCS obligations.

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.

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.

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.

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.

We will retain contract, design, installation, testing, commissioning, handover and related evidence for at least six years, and longer where law, warranty obligations or relevant MCS requirements require.

This does not mean all personal data will automatically be retained for that period where retention is unnecessary.

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.

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.

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.

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
Telephone: 0800 810 0565
Email: info@greenio.co.uk
Website: 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 cancel the contract for the following goods and/or services:

Description: __________________________________________________________

Customer name(s): _____________________________________________________

Customer address: _____________________________________________________

Quotation/contract reference: ____________________________________________

Date contract entered into: ______________________________________________

Customer signature (only if on paper): ____________________________________

Date: ______________________________

Greenio Ltd – MCS Domestic Installation Terms & Conditions
Version: October 2026