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.