Built By The Trade. Refined By Legal Professionals.

Business-To-Business Experience & Legal Knowledge.

Professional B2B Construction Contract Templates For UK Contractors, Subcontractors And Construction Businesses

A B2B contract is an agreement between one business and another business rather than an agreement with a homeowner or consumer. Our business-to-business construction contract templates are developed around the way commercial construction work actually operates, helping contractors, subcontractors and construction businesses clearly record the work being provided, commercial terms, payment arrangements, responsibilities and what happens when circumstances change.

Instant Download
No Subscription
Business-To-Business Terms
Built For UK Construction
Commercial Construction Experience Built Into The Terms

What Makes A Good B2B Construction Contract?

Business-to-business construction work can involve more moving parts than a straightforward domestic project. Different contractors may be working across the same site, programmes can change, access can be delayed, variations may arise and problems elsewhere on a project can affect your own work. A strong B2B agreement should anticipate those situations before they become disputes.

01

Clear Business
Terms

A professional B2B construction contract should make the commercial arrangement clear from the beginning. The parties, scope of work, price, payment terms, responsibilities, programme and important project requirements should all be set out in writing so both businesses understand the agreement they are entering into.

02

Scope &
Responsibility

Commercial projects often involve several businesses working alongside one another. Good contract terms help establish what work you are responsible for and what falls outside your scope, reducing confusion when another contractor, trade or part of the project affects your own work.

03

Variations,
Snags & Change

Construction rarely remains completely unchanged from the first conversation. Additional work, specification changes, unforeseen conditions, snagging or problems in other units can all affect time and cost. Our B2B templates recognise the importance of having a clear process for variations and changes to the agreed work.

04

Payments &
Disputes

Many commercial disagreements begin with unclear expectations over payment, delays, incomplete work, additional costs or who is responsible when something goes wrong. Our contracts are informed by real construction experience and recurring industry disputes, helping important issues be addressed in writing before they become a problem.

Experience Matters

Our contract templates are developed from firsthand construction-industry knowledge and refined with legal professionals. That means the wording is not built around an imaginary perfect project. It considers the situations construction businesses regularly encounter: changing programmes, access problems, other contractors affecting the work, variations, additional requests, payment issues, delays, snagging and disagreements over responsibility.

Business-To-Business Or Business-To-Consumer?

Is This The Right Contract For Your Job?

The type of client you are contracting with matters. A B2B construction contract is designed for commercial relationships where one business provides work, labour or services to another business. It is different from a consumer agreement used when contracting directly with a homeowner or private customer.

This B2B Contract Is Designed For

Working With Another Business

This type of agreement is suitable where your construction business is providing work or services to another commercial organisation.

  • Main contractors
  • Construction companies
  • Property developers
  • Facilities management companies
  • Property management businesses
  • Other contractors or subcontractors
  • Commercial landlords and business clients
When A B2C Contract Is Different

Contracting Directly With A Consumer

If you are providing work directly to a homeowner or private consumer, a business-to-consumer contract is normally the more appropriate type of agreement. Consumer-facing projects involve a different relationship and different contractual considerations from work carried out between two businesses.

Keeping the distinction clear helps ensure the contract reflects the type of client, the commercial relationship and the way the project is actually being delivered.

Professional Businesses Put Things In Writing

Your Contract Should Look As Professional As The Work You Provide.

When you work with another business, clear written terms help establish the commercial relationship from the outset. A strong B2B construction contract reduces room for assumptions around scope of work, payment terms, responsibilities, variations, delays, additional work and project changes.

If questions or disagreements arise later, both businesses have a professional written reference showing what was agreed. It demonstrates that your business takes its commercial relationships seriously and gives important terms somewhere clear to refer back to.

Clear Commercial Terms Professional Presentation Defined Scope Of Work Clear Payment Terms Less Room For Dispute
Built From Experience. Strengthened With Legal Knowledge.

The Best B2B Contract You Haven't Used... Yet.

Built from real construction-industry experience and refined with legal professionals, so the hard work is already done.

Simply fill in the blanks, add your business and project details, and your contract is ready to use.

No starting from scratch. No trying to write professional business terms yourself. Just a clear, professional B2B construction contract designed to help your business look organised, credible and prepared when working with other companies.

We've Done The Work. You Fill In The Details. Your Business Looks Professional.
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Plumbing & Heating – B2B Service Agreement Contract

Plumbing & Heating – B2B Service Agreement Contract

BUILT FOR YOUR TRADE

YOUR TRADE. YOUR RISKS. COVERED.

We’ve done the hard work so you don’t have to. Just fill in the blanks and work with peace of mind.

PLUS 3 B2B BUSINESS DOCUMENTS INCLUDED FREE
Business Terms & Conditions
Invoice & Payment Terms
Variation & Additional Works Form
Supporting B2B business documents included with your contract at no extra charge.
Instant download after purchase
Built from real trade experience
Adjusted by solicitors
Fully editable contract template
Use again and again

HOW LONG DO I HAVE ACCESS TO MY DOCUMENTS?

You’ll get unlimited downloads for 2 years. If we update your contract during that time, we’ll email you a new link so you can download the latest version at no extra charge. After 2 years, there’s no automatic renewal or subscription — if you want the newest version, you can simply choose to purchase it again.

ARE THERE ANY SUBSCRIPTIONS OR HIDDEN CHARGES?

No. As we say in the construction industry, a price is a price — and the same applies to our contract templates. We’re not here to tie you into another monthly subscription. Just affordable, professional legal protection for everyone, with real trade experience built in.

HOW DOES IT WORK?

Add your contract to the Download Cart and complete your purchase. Your download will be available straight away, and we’ll also email you your download links so you can access your documents whenever you need them.

Regular price £25.66
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📩 Download your documents instantly after purchase

Plumbing & Heating – B2B Service Agreement Contract Template 

Who Is This Contract For?

This agreement is designed for use when providing plumbing and heating services to Business/ commercial clients, not private homeowners. 

Whether you're working with landlords, builders, small businesses, or property developers, this contract provides clear, professional terms for jobs that need a formal B2B agreement 

Whether you’re installing a heating system for a landlord, upgrading pipework for a small shop, or carrying out remedial works for a contractor, our terms and conditions provide the structure you need to protect your work, set firm terms, and get paid on time.

Used by professionals who want to avoid miscommunication and ensure both parties understand their responsibilities, this agreement reflects the reality of B2B work — where both sides are running a business, and expectations should be handled accordingly.

Unlike domestic contracts, this template includes firmer clauses around payment deadlines, access, additional works, and non-liability for delays caused by other trades or poor site prep.


Why Use This B2B Agreement

Written by experienced trades
Developed by professionals in the plumbing and heating industry and refined by our legal team to meet the standards expected in commercial contracts.

Stronger protection for your business
B2B projects come with more risk. This agreement sets out clear terms so there’s no room for confusion when it comes to payment, scope, or responsibilities.

Covers the full job lifecycle
From deposit and materials ordering through to sign-off and invoicing, this agreement supports you at every stage.

Prevents disputes and delays
Includes clear clauses for extras, access issues, pre-existing faults, and dealing with other trades on site.

Looks professional and builds confidence
Presents your business as organised and reliable from the start, helping clients take your terms seriously.


What’s Covered in This Agreement

Scope of Works and Materials
Clear description of what’s included in the job and what isn’t.

Payment Terms
Fixed price or milestone structure, late fee enforcement, and optional CIS clauses.

Access and Site Readiness
Outlines what the client must provide such as water, power, and safe working areas.

Change Orders
Process for handling extra work or changes to scope in writing.

Liability Protection
Non-liability for old systems, unsafe access, or damage caused by others.

Client-Supplied Materials
Disclaimers for any parts or products you’re asked to fit.

Job Termination and Cancellation
Sets out your rights if the project is delayed, cancelled, or unsafe.

Warranty and Certification
What’s included, and what’s not, in your workmanship or product guarantees.

Dispute Resolution
A professional framework for resolving issues without legal escalation.

And many more terms and conditions
Professionally drafted from real-world experience working with other businesses in the plumbing and heating industry.


Who Is This Contract For

This agreement is designed for use when providing plumbing and heating services to commercial clients, not private homeowners. It is commonly applied in situations such as:

Carrying out work for other businesses that expect clear, professional terms in writing

✅ Working with landlords, letting agents, or housing associations

✅ Providing services to builders, main contractors, or property developers

✅ Supplying, installing, or repairing systems in retail spaces, hospitality venues, or commercial units


How This Contract Can Be Used

This agreement is flexible in its use and can be adapted to suit your business needs:

✅Use as a standalone service contract when carrying out one-off jobs for commercial clients

✅Attach to formal proposals or quotations to set clear terms before work begins
Include the terms and conditions section as part of your invoice or estimate to establish payment and liability expectations

✅Issue as written confirmation following a verbal agreement to document the scope and protect your position

Whether you're supplying, installing, or providing diagnostic services, this contract helps ensure both parties are clear on their obligations from the outset.


Instant download

✅ Easy to edit

✅ One-time payment — no subscriptions, unlimited use.

✅18 months of free updates- Instant Download 

Here at Construction Companion, our contracts are written by professionals who’ve worked in the trade and refined with legal oversight to stay fair, firm, and professional.

If you're working B2B, this agreement helps you run your business on your terms — with clear protection built from real experience.

View full details
The Construction Companion B2B Difference

Not Just A Contract. Commercial Experience Built In.

Our B2B construction contract templates are made for contractors, subcontractors and construction businesses working with other companies. No subscriptions, no complicated contract generators and no generic paperwork — just professional business-to-business terms built from firsthand construction experience and finalised by our UK legal team.

Construction Companion B2B
Typical Alternatives
One simple payment with no subscription
Subscriptions, memberships and ongoing fees
Written specifically for business-to-business construction work
Generic business or construction agreements
Commercial payment terms and responsibilities considered
You decide which commercial terms need including
Variations and additional work anticipated from the outset
Changes often dealt with only after they happen
Delays, access issues and other contractors affecting your work considered
Ideal-project wording with little real site context
Recurring construction disputes already considered
You work out what could become a dispute
Built from firsthand construction-industry experience
No firsthand knowledge of how construction projects operate
Finalised by our UK legal team
Generic document generation
Full legal compliance
One-size-fits-all business paperwork
Fill in your business and project details, then reuse
Platforms, accounts and repeated document generation
Built For Real Commercial Construction

Different Business Relationship. Different Risks. We Already Know Them.

B2B construction work comes with its own recurring problems: payment delays, changing scope, additional work, variations, site access, programme changes, snagging and disagreements over responsibility. Our contracts are built with those real situations in mind, so you are not starting with a blank page and trying to predict every problem yourself.

Commercial Terms Covered Real Construction Experience Ready To Fill In & Use Professional From Day One
How Our B2B Contracts Are Built

An Expert Collaboration. Built For Stronger Commercial Contracts.

The people who understand how B2B construction projects go wrong are not always the people writing the paperwork. Our B2B construction contract templates bring together commercial construction knowledge, real subcontractor experience and UK legal expertise so the terms reflect how contractors, subcontractors and construction businesses actually work with one another.

Experience From Commercial Construction

Commercial
Construction
Knowledge

Our B2B contracts are shaped by people who understand the commercial side of construction, including experienced construction business owners, contracts managers, quantity surveyors, project managers and subcontractors.

They know the problems that repeatedly arise on real projects:

  • Payment applications and late payment
  • Variations and additional works
  • Changing scope and specification
  • Programme delays and disrupted sequencing
  • Site access problems
  • Other contractors affecting your work
  • Snagging and defects
  • Disputed extras and additional costs
  • Responsibility when something goes wrong
+
Commercial Experience + Legal Knowledge

Two Sides. One Stronger Contract.

Construction professionals identify the recurring problems, commercial risks and situations that need addressing. Our legal team turns that industry knowledge into professional contract terms. That collaboration is how Construction Companion builds its B2B agreements.

Industry Knowledge Can Include
Contracts Managers Quantity Surveyors Construction Business Owners Project Managers Experienced Subcontractors Trade Specialists UK Legal Professionals
How Construction Companion Builds B2B Contracts

Built From The Project Outwards — Not From A Blank Legal Template.

100+
Active & Retired Construction
Industry Contributors
Experienced Trade Authors From Across the UK

Decades of Construction Experience Behind Our Documents.

Construction Companion is powered by the knowledge of more than 100 active and retired professionals from across the construction industry.

Their experience helps shape customised construction contract templates, subcontractor agreements, client agreements, service agreements and Terms & Conditions for tradespeople and construction business owners.

That means our documents aren't built around what somebody imagines might happen on a job. They're informed by people who understand what actually happens when work begins.

Giving Back to the People Behind the Documents

The People Behind the Documents Share in Their Success.

A share of royalties goes back to the tradespeople and construction professionals who helped shape our contracts from real industry experience.

What UK Tradespeople Say

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."

Why Construction Companion

The Leading Contract Store for UK Tradespeople.

Construction Companion combines decades of real construction experience, trade-written knowledge and professional legal input to create construction contract templates built specifically for UK tradespeople and construction businesses.

Our documents are shaped by experienced construction industry contributors, adjusted by solicitors and built around real jobs, real disputes, payment protection, customer responsibilities and full UK legal compliance. From roofing and building contracts to plumbing, electrical, decorating, landscaping, solar, bathroom installation and subcontractor agreements, every template is made to be practical on site, professional with customers and strong enough to protect the business behind the work.

01
Trade-Written Real Industry Knowledge
02
Built From Experience Decades In Construction
03
Adjusted by Solicitors Professional Legal Input
04
UK Legal Compliance Built For UK Businesses
Built by the trade. Adjusted by solicitors. Made for the people building, repairing and improving Britain every day.
Strong Terms Before The Work Begins

Prevention Is Better Than Cure.

A professional B2B construction contract gives you more than paperwork. It gives both businesses a clear written reference for what was agreed, what happens when the work changes and where each party stands. Instead of relying on assumptions when something goes wrong, important commercial terms are already there in writing.

What happens when extra work or a variation was never included in the original price?

What happens when an invoice or payment is disputed because of snagging unrelated to your own work?

What happens when another trade delays your work, prevents access or disrupts the agreed programme?

What happens when a delay outside your control affects a milestone payment or agreed payment trigger?

What happens when additional requests slowly become part of your expected scope without being properly agreed?

What happens when two businesses have different memories of what was originally agreed?

Put The Terms In Place Before You Need Them

Less Worry About "What If?"

You cannot predict every problem on a construction project. But you can make sure the important commercial terms are already in place before those problems arise. A clear professional contract gives you something to refer back to when the scope changes, payment becomes disputed, another contractor affects the programme or responsibilities are questioned.

Clear Scope Clear Payment Terms Variation Procedures Defined Responsibilities Professional Presentation Peace Of Mind
Ready When Your Business Is

Look Professional. Have Strong Terms In Place.

We've already done the hard work. Simply fill in your business and project details and you have a professional B2B construction contract ready to use when working with other companies.

Get Your B2B Contract
One payment. Fill in the details. Use it again and again.

Advanced Agreements for Larger Projects

Professional Formal Agreements for High-Value, Multi-Party Construction Work

A highly detailed contract designed for larger, more formal construction projects involving architects, subcontractors, and regulatory oversight.

Best suited for contractors managing High Value complex builds with multiple stages, not typical one-off domestic jobs.

Still need the Plumbing & Heating – B2B Service Agreement Contract?

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.

£25.66

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

✅ Includes unlimited downloads and 18 months of updates.