Document Templates Built By Professionals In The Solar Trade

On-Site Experience And Legal Expertise, Trusted by Trades Across the UK

At Construction Companion, we specialise in providing tailored contract templates designed specifically for tradespeople.

Every document is written with on-the-job experience and packed with informative trade terms and conditions. Clear, practical and easy for your customers to understand.

Trusted by solar installers across the UK, our full range of contract templates is built from real on-site experience and backed by legal expertise.

Whether you're working with homeowners, fitting off-grid systems, upgrading legacy installs, or managing commercial clients, every agreement is written by professionals who understand the job and the risks, then legally refined for clarity, protection, and ease of use.

Designed to be clear for your customers and professional for your business, these templates save you time, reduce stress, and give you the confidence to take on any project

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Off-Grid Solar Installation Contract Template

Off-Grid Solar Installation Contract Template

Real trade insight , backed by UK legal expertise.

✅ Built By Trades , For Trades

✅ Adjusted By Our UK Solicitors

✅ Instant Download , Easy To Edit

✅ Quotation Terms & Conditions Template Included

🕘 Legally current version issued 22 June 2026 – Next review scheduled in 60 days

£25.99
£25.99
Sale Sold out
Taxes included. Shipping calculated at checkout.

One-time purchase — no subscriptions, with unlimited downloads and updates for 18 months

What is Included in the Price ?

✅ Service agreement contract, written by our legal team and trade professionals — fully editable to suit your business

✅ Quote Terms & Conditions to prevent disputes, look professional, and help you get paid on time — easy to customise as needed

✅ One-time purchase — no subscriptions, with unlimited downloads and updates for 18 months. Renew only if you choose to, via a reminder email

Off-Grid Solar Installation Contract Template

For Standalone Solar Systems with No Grid Connection

Built specifically for solar professionals working on off-grid projects, this contract template is designed to set clear expectations, reduce the risk of misunderstandings, and protect your business when installing independent solar PV systems with battery storage.

Written with input from solar installers and reviewed for legal clarity, it addresses the common challenges and customer assumptions that come with off-grid setups — especially when energy supply and usage must be carefully managed.

What This Contract Helps With:

✔️ Explains Off-Grid Limitations Upfront
Gives clients a clear picture of what to expect, including seasonal differences, generator reliance in winter, and energy autonomy limits — so you’re not blamed when the system performs exactly as designed.

✔️ Sets Clear Client Responsibilities
Includes easy-to-understand terms about load usage, energy monitoring, and system maintenance — helping prevent damage from misuse or “high draw” appliances.

✔️ Protects Against Scope Creep
With structured Change Orders and Scope of Works tracking, you stay protected when the project shifts or extras are requested mid-job.

✔️ Reduces Disputes and Misunderstandings
Covers backup generator usage, performance variation, and battery constraints — with disclaimers that clearly define your trade limits and the client’s role in managing the system properly.

✔️ Builds Confidence & Professionalism
Professional documentation shows clients you know what you’re doing — making it easier to charge what you're worth and avoid awkward conversations later.

✔️ Covers You from First Quote to Final Invoice
From outlining responsibilities and performance expectations at the start, to confirming system handover, customer sign-off, and payment terms at the end — this contract keeps everything clear and accounted for.

Example Terms & Conditions Highlights " Built from Trade Experience "

✔️ System design clause covering load profiling, seasonal variance, and inverter/battery oversizing where applicable.

✔️ Battery terms including BMS requirements, charge/discharge limitations, and warranty compliance conditions.

✔️ Generator integration terms (if applicable), with changeover methods and system compatibility responsibilities outlined.

✔️ Commissioning and handover terms, confirming system has been tested under load and parameters set according to spec.

✔️ Usage limitations clause stating that performance depends on consumption remaining within designed thresholds.

…and many more terms crafted from real-world off-grid installs to ensure clarity, protection, and long-term system performance.

When to Use This Template:

Any time you’re installing a solar system that isn’t connected to the grid — whether it’s a remote setup, a self-sufficient home, an off-site building, or a project where full energy independence is required.

This isn’t a generic solar contract.

It’s built from real-world, on-the-job experience by installers who understand the complexity of off-grid systems — with legally adjusted trade terms that help both you and your customer stay on the same page from start to finish.

✅ Instant download

✅ Easy to edit

✅ One-time payment of £25.99 — includes unlimited use and free updates for 18 months

This agreement follows the same standard applied across all our templates — clear, informative terms that are easy to read, with firm but fair conditions around payment, responsibilities, and legal protection.

It maintains a strong balance between being approachable for clients and professional enough to protect your business.

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Get Every Solar Document We Offer – All in One Bundle

This pack includes our complete solar collection — every contract, form, and legal template on our site.

That’s 13 professionally written documents, normally £25.99 each (worth over £300 when bought individually).

Homeowners, B2B clients, or maintenance Contracts — whatever the project, this bundle covers it all.

Now just £49.99 — one-time price, unlimited downloads, full legal protection

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Construction Companion

Solar Business Contract Template Bundle

£19.99
£86.22 £19.99
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Taxes included. Shipping calculated at checkout.
View full details

"Not Ready for the Full Bundle?

Pick and choose from our standalone solar templates.

Legally adjusted for UK law and consumer fairness. From off-grid and re-roofs to EV chargers and commercial projects, you’ll find agreements built from real-world experience.

The hard work and dedication behind every agreement is there to protect your business. Written by fellow installers who understand the risks and the kinds of disputes that can happen during or after the job.

All include unlimited downloads and free updates for 18 months

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Included As Standard With Every Contract Template

Built by trades. Backed by solicitors.
Everything you need to protect your business — from first quote to final invoice.

  • Quote Terms & Conditions

    Trade-written, solicitor-adjusted. Polite terms to send with your quote. Sets expectations early and keeps things professional.

    We strongly advise using Quote Terms with every single job. Without them, there are no rules, no protection.

  • Professional Invoice Terms

    Send this with your invoice to confirm the terms already agreed — including late fees — all backed by UK consumer law.


    This simple step — when used alongside our contract or Quote Terms —leads to invoices being paid on time.

  • Instant Download Access

    Your download begins immediately after checkout.
    You’ll see access on-screen right away, and we also send the download links to your email.

    you won’t find subscriptions, recurring fees, or hidden charges.

    Just a one-time payment, with unlimited access for 18 months.

Frequently Asked Questions

Can I just use the terms in my quote or proposal without the contract ?

Yes. We encourage this as part of your quoting routine to protect your business and finances.

When working for domestic clients, there’s no review site to check if a customer is genuine. When quoting jobs, you rely on instinct. And sometimes, especially when work slows down, you take the job whether your gut feeling is good or not.

We recommend you attach your terms and conditions with every job so you leave nothing to chance.

Especially when it's time to settle the invoice, the payment terms have already been agreed upfront, meaning no surprises. For firmer protection, you can also use these terms within our full Service Agreement contract template.

Every contract includes a full set of terms and conditions—trade-written to address the common disputes faced in your industry.

Use the full agreement as a standalone service contract, or attach the same terms to quotes, proposals, or invoices as a clear reminder of what the customer has agreed to.

How simple are the documents to use and get started with ?

Our documents are designed to be quick and simple to use.

Just download the file,fill in your business details, and adjust any job-specific sections as needed.

Our tradespeople worked closely with our legal team to remove confusing legal jargon, ensuring you and your customers have a clear, professional agreement.

No complicated setup, no stress. Just a straightforward fill-in-the-blanks template you can use again and again.

Simple, easy to use, by the trade, for the trade.

What is the difference between B2C and B2B in contracts and terms and conditions ?

B2C (Business to Consumer) contracts are designed for domestic clients, such as homeowners.

Our Trades and Legal Team have worked hard to ensure these contracts are easy for customers to understand while clearly establishing key terms, like payment agreements, without sounding intimidating.

B2B (Business to Business) contracts are used when providing services to other businesses. These agreements are more formal, offering tailored protections suited for commercial projects and clearly outlining both parties’ responsibilities.

Remember: B2B means providing services to another business—not an individual customer.

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Are the documents suitable for repeat use on different jobs or customers?

Are the documents suitable for repeat use on different jobs or customers?

Yes. Our construction contract templates are designed for repeat use across multiple clients and projects. Just update the details each time and you're ready to go.

The structure stays in place—only the job-specific info changes. You can update fields such as:

  • Customer name & Address
  • Work to be carried out
  • Payment amount and due date

Whether you’re paid on completion, within 7 days, or on 30-day terms

It’s your business, your terms.

<Fill in the blanks> and send. We've done the hard work—so you don’t have to.

Do the documents get updated

Yes, our documents are regularly updated to keep up with industry changes and ensure they remain legally reliable. Staying up to date is crucial, especially if legal action is ever needed against a client.

Our authors, tradespeople with real on-site experience, work closely with solicitors to review industry developments and make necessary improvements.

Every update is made with both you and your customers in mind.

Each document includes unlimited downloads and updates for 18 months.

After this period, you’ll receive an email notifying you that updates and downloads have ended, giving you the choice to continue if needed.

We use 18 months as this gives you real value for money. For instance, a solicitor and trade-written contract for £38.99 works out at just £2.16 a month, which is less than the price of a cup of coffee

How do I receive my documents

As soon as your purchase is complete, you’ll get an instant download link on the confirmation page so you can access your documents immediately.

We’ll also send you an email with the download links, giving you a backup in case you need to retrieve them later.

There’s no waiting around. Simply download your files, fill in your details, and start using them straight away.

A Few Words From Our Customers

We’ve helped tradespeople across the UK protect their work and their payments. Here’s just a small sample of their feedback.

Lenny Walsh
Builder, South London
"Been in this game 40 years now. If something helps get the job done and the money in the bank, I’m using it. Nice terms 👍"

Janet K
AK Refrigeration & Air Conditioning Bristol
"Quick download, very thorough Terms and Conditions, saved us lots of time and money."

Darren
Tap And Tile
"Wanted this to upgrade my quote terms. The Terms and Conditions are brilliant 👍"

Mark D
Prestige Painting London
"Good, easy, and not a nightmare to edit or understand. Costs more than a generic one, but you can see the work that’s gone into it. Covers most of the common arguments I’ve had with customers as a finishing trade. Couldn’t have written it better myself."

Danny Quinn
D & Q Building Services
"Well put together. Every job has terms in place upfront before it starts now, even the small jobs. Not risking it for my business or my family’s livelihood. Run a business, not a charity."

Joanne Booth
Bespoke Loft Conversions
"We use this for all client contracts now. Keeps everything above board."

How Our Contracts Are Made

Practical, reliable contracts that deliver real-world results and are trusted across the industry.

Trade Consultation

Ensuring every agreement reflects the unique challenges and needs of your industry.

It starts with conversations between experienced tradespeople and solicitors. They discuss common challenges faced on the job, including disputes with customers, payment issues, and project-specific risks.

Turning Challenges into Strong Agreements

The solicitors take these real-world issues and shape them into clear, professional, and fair service agreements. Through careful wording and legal expertise, they create terms that protect businesses, set clear expectations, and reduce disputes.

These agreements ensure both parties understand their responsibilities from the start, making jobs run more smoothly.

Review, Refine, and Perfect

Once the draft is complete, it goes through a detailed review process. Our Tradespeople and solicitors work together to ensure every term is relevant, practical, and easy to understand.

If the legal language is too dense or doesn’t fit the realities of the job, it’s edited until both sides agree it’s just right.

The Trusted Name In Contract Templates For UK Tradespeople

We understand the challenges you face. Our documents are built with integrity and deliver real value, crafted by trades for trades with professionalism and real-world experience at their core.

Built From Experience

Decades of experience are built into every document we create.

From the dream customer who pays on time and lets you get on with the job, to the ones we all dread , the ones who expect free extras that weren’t in the quote, ignore invoices, or think your price should depend on how long you’re on-site.

All our documents have you covered.

" Written by trades, for trades, with real-world challenges in mind "

A Smart Investment Without the Wait

When you choose this investment for your business, we don’t keep you waiting. Whether it’s for a job today or tomorrow, all documents are available instantly, easy to customize, and ready to use. Just fill in the blanks.

" Less Time at the Laptop, More Time Doing What Matters "

On Time Payments

"One of the most important aspects of an agreement is ensuring you get paid on time."

Our documents do exactly that. Spend less time chasing invoices or awkwardly sending payment reminders, and more time focusing on your trade.

With clear terms, you decide when you get paid, whether it’s upon completion, within 7 days, or 30 days later.

Our agreements are fully customisable to suit your business.

"An agreement with solid terms puts a stop to invoice ignorance."

Confidence in Every Agreement

Your customers deserve more than a cheap, generic template that has no relevance to your trade.

You wouldn’t give your customers unreliable materials, so don’t give them a low-quality agreement.

Join the countless trades across the country who look professional with documentation that reflects the quality of their work and their approach to business management.

" provide your customers with a professional agreement they’ll respect "

Still need the Off-Grid Solar Installation Contract Template?

As you’ve probably told your own customers — do it once, do it right. Our documents are no different.

There’s a reason trades come here instead of digging through generic templates or marketplace downloads. They want documents they’re actually proud to hand over — professional terms you can send to your customers with confidence. Paperwork that reflects the same standard as your workmanship.

Use what other trades across the UK are already using. Once you do, you’ll never go back to a generic agreement again. That’s our promise.

£25.99

✅ Instant download. No subscriptions. Use it straight away.

✅ Includes unlimited downloads and 18 months of updates.