Quick summary: construction company scope of work
A well-prepared construction company scope of work clearly outlines what work will be carried out, by whom, to what standard, and within what timeframe. For UK homeowners, getting this right can prevent misunderstandings, budget creep and disputes with contractors.
- Includes key deliverables (e.g. extension shell, roofing, windows fitted).
- Lists specific exclusions (e.g. kitchen fitting, landscaping).
- Defines who provides materials, who manages Building Control, and who clears waste.
- Can be attached to a contract or estimate – useful in disputes or if works are delayed.
Your contractor's “scope of work” should be a plain-English list of what's included — and what’s not — before building starts. It protects both sides and helps keep your project on track.
Unsure what should be in your builder's scope of works?
We can review your builder’s quote or help prepare a clear, fair scope of work for your residential project.
What is a construction company scope of work?
A scope of work (often shortened to SOW) is a document that outlines exactly what a construction company will do on a project. It forms part of the legal agreement between you and your builder and can be used to manage expectations, define responsibilities and reduce the risk of disputes.
In a residential setting — such as a kitchen extension, loft conversion or garage conversion — the scope of work should explain what you’re paying for, who’s responsible for materials, and what standards apply. It's especially important if you're managing several trades or builders on-site.
What should a good scope of works include?
A construction company scope of work should contain enough detail to avoid ambiguity — but still be readable and clear for both sides. A good SOW typically includes:
- Project description: e.g. “Build single-storey rear extension to existing property.”
- List of tasks included: excavation, foundations, walls, roofing, first fix, plastering, etc.
- Materials responsibility: who supplies what (builder vs homeowner).
- Exclusions: anything not covered (e.g. kitchen install, painting).
- Site management: welfare, skips, health and safety, waste removal.
- Timeline: estimated start and completion dates.
- Standards and regulations: e.g. all works to comply with Building Regulations and pass inspections.
Scope of works vs schedule of works – what’s the difference?
Many homeowners confuse a scope of works with a schedule of works. They’re both useful — but different.
- Scope of works = what will be done and what’s included in the contract.
- Schedule of works = when things will be done (a timeline or programme of works).
For example, the scope might say “install roof tiles to rear extension,” while the schedule says “roof tiling: week 6”. Ideally, your builder provides both — or at least builds the key milestones into your scope of works.
Scope of works vs specification – what each covers
Another common confusion is between a scope of works and a specification document. In short:
- Scope of works defines responsibilities and tasks (what’s included).
- Specification details the standard or type of material to be used (how it's done).
For example, the scope might say “install new aluminium bifold doors to rear elevation.” The specification then explains the frame colour, U-value, locking mechanism and brand. Both can be vital on larger or high-spec jobs.
How to create a clear scope of work (step-by-step)
If you're working with a builder who hasn’t provided a formal scope, you can draft your own using these steps:
Step-by-step: writing your own scope of works
- Write a plain-English summary of the works planned (e.g. “rear extension with utility room”).
- Break it into sections (e.g. groundworks, walls, roof, internal fit-out).
- List what each section includes — and what’s excluded.
- Add details about materials — who supplies, and what grade/spec.
- Set expectations around health and safety, waste and site welfare.
- Confirm if Building Control sign-off is included.
- Have both sides agree it in writing — email is fine, though contracts are better.
If you're also working with an architect or technician, they may already have prepared a detailed scope or specification that your builder can follow.
Not sure your scope is complete?
Send it to us and we’ll sense-check it for missing items, exclusions or red flags that could cause issues later.
FAQs: construction company scope of work
What’s the purpose of a scope of works in residential building?
It sets out what the contractor will and won’t do. This avoids misunderstandings, helps manage costs, and supports legal clarity if disputes arise later.
Is a scope of work legally binding?
Yes — if it’s referenced in a signed contract or agreed by both sides (even via email). It can be vital evidence in case of disagreement.
What’s the difference between a scope of works and a schedule of works?
The scope sets out what will be done. The schedule sets out when it will be done. They’re different but both useful.
Does the scope of works need to list materials?
Ideally yes — or at least specify who provides what. If you’re supplying things like kitchen units or flooring, make sure that’s noted.
Next steps & useful guides
These articles help homeowners understand key parts of the planning and building process that relate to scope of works:
- Scope of Work for a Construction Project: What UK Homeowners Must Include
- Planning Permission Drawings: A Complete Guide for Homeowners
- Making Plans: Complete Guide to Costs, Drawings & Approval
- Building Control: What It Is, When You Need It, and How to Pass Inspections First Time
- Plans for Building Regulations (UK Guide)
- What it is A document listing all works a builder will carry out, including inclusions and exclusions.
- What it should include Project summary, task breakdown, responsibilities, materials, exclusions and standards.
- Why it matters Reduces disputes, clarifies who does what, and supports legal protection.
- Related documents Building contract, plans, specification, planning permission documents.
- Format Can be a simple written list or a detailed multi-page schedule attached to a quote or contract.
Want help reviewing your builder’s scope? We’re happy to take a look before you sign anything.
Official guidance
- Planning Portal – national planning guidance and application process
- GOV.UK – planning permission in England and Wales
How Plans Made Easy can help
We help homeowners plan better projects by reviewing scopes of work, preparing compliant plans, and ensuring everything is properly coordinated for planning and Building Regulations sign-off. A good scope protects both sides — and we’re here to help make sure yours is solid.
Need help reviewing or preparing your scope of works?
Our team can help check for red flags, missing details or planning issues before your builder starts.
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