Understand the Cost of Your Home Extension
Cost Clarity Before Construction
Planning building work can feel overwhelming when costs are unclear. Synergy Estimates provides home extension cost estimates, UK building estimates and practical homeowner guidance, helping you understand your budget before choosing a builder.
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0161 507 1353
mail@synergy-estimates.com
Homeowner Estimate Packages
Choose the level of support that best suits your project stage,
from early cost guidance through to detailed building estimates.
Bronze
Initial Budget Estimate-
Early-stage cost guidance
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Before detailed drawings are complete
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Based on size, type and available info
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Useful for checking affordability first
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Includes homeowner guidance,
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role advice, checklists and key things
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Suitable for early extension, renovation
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Loft conversion
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New build planning
Silver
Standard Building Estimate-
Extensions
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Loft conversions
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Garage conversions
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Conservatories and orangeries
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Detached garages
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Garden rooms and home offices
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Labour, material and plant cost breakdowns
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Includes homeowner guidance,
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Role advice, checklists and key things
Gold
Detailed Residential Estimate-
New dwellings
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Semi-detached dwellings
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Extensions with alterations
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Conversions to dwellings
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Barn conversions
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More detailed labour, material,
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and plant cost breakdowns
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Includes homeowner guidance, role advice
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Role advice, checklists and key things
- OUR SERVICES
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What Our Homeowner Guidance Includes
Our homeowner guidance is designed to help you understand more than just the estimated cost. It explains what the figures mean, what your role is during the process and what to consider before appointing a builder or moving to the next stage.
Depending on the package you choose, your guidance may include support with comparing builder quotes, understanding common missing costs, knowing what questions to ask and identifying practical next steps for your project.
This helps you approach your build with clearer expectations, better information and more confidence from the start.
How Our Home Owner Building Estimate Service Works
Our homeowner service is designed to keep things simple. The video above explains the process in more detail, but the journey starts with understanding your project, preparing the right level of estimate and helping you decide what to do next.
1. Tell Us About Your Project
Send us your drawings, plans, brief or early project information. If you are not sure what you need, we can guide you.
2. Choose the Right Estimate
We help identify whether you need early budget guidance, a standard building estimate or a more detailed residential estimate.
3. Receive Clear Cost Guidance
You receive practical cost information designed to help you understand your likely budget, local rate considerations and key things to look out for.
4. Take the Next Step
Use your estimate to compare builder quotes, speak to your architect, check affordability or ask about trusted builder and architect introductions.
Looking for a trusted Builder or Architect
Finding the right people can be one of the hardest parts of a building project. Synergy Estimates can help homeowners move beyond cost guidance by supporting introductions to trusted builders or architects where suitable.
How It Works
Tell us about your project, location, stage and timescale. We will review what support you need and, where appropriate, discuss suitable builder or architect referral options from our trusted network.
Find a Builder
If you are ready to speak to builders, we can help introduce you to suitable professionals based on your project type, location and requirements. This helps reduce the risk of approaching builders who are unavailable, unsuitable or not aligned with your project.
Find an Architect
If your project needs drawings, planning advice or design support, we can help you understand when an architect may be needed and discuss suitable referral options.
Sign Up for Referral Support
If you would like help finding a trusted builder or architect, speak to Synergy Estimates after your estimate and we can guide you through the next steps.
Here’s What our clients had to say
- precision in partnership
Why Homeowners Choose Synergy Estimates
Planning a building project can feel stressful when costs are unclear, builder quotes vary, or you are unsure what should be included. Synergy Estimates gives homeowners clear, independent cost guidance before committing to the next stage.
Our service is designed to make the early stages of your project easier to understand. We help you get a clearer view of likely costs, key risks and practical next steps before you make bigger decisions about drawings, builders, architects or your overall project budget.
With homeowner estimates starting from £80 + VAT, you can access useful cost guidance early, without waiting until the project becomes overwhelming. Whether you are planning an extension, renovation, loft conversion or new build, we help you move forward with better information and greater confidence.
- Estimates from £80 + VAT
- Clear UK cost guidance
- Compare builder quotes
- Practical homeowner checklists
- Trusted referral support
- Confidence before you build
Frequently asked questions
How much does a home extension cost?
The cost of a home extension depends on the size, design, location, specification, structural requirements and level of finish. A building cost estimate helps you understand the likely cost of your specific project before you choose a builder.
Can I get an estimate before I have full drawings?
Yes. If you are at an early stage, our Bronze package can provide initial budget guidance based on the project size, type and information available. More detailed estimates usually require drawings and specification details.
Should I get an estimate before choosing a builder?
Yes. Getting an estimate before choosing a builder can help you understand your likely budget, compare builder quotes more confidently and avoid committing to a price without knowing what should be included.
How do I compare builder quotes?
When comparing builder quotes, check whether labour, materials, plant, VAT, exclusions, payment terms and assumptions are clearly shown. A Synergy estimate can give you a useful reference point when reviewing quotes.
Can Synergy Estimates help me find a builder?
Yes. Through our referral support, we can help connect homeowners with trusted builders where suitable, based on project type, location and requirements.
Can Synergy Estimates help me find an architect?
Yes. If your project needs design, drawings or planning support, we can discuss architect referral options and help you understand what support may be needed.
What is included in the homeowner guidance pack?
The homeowner guidance can include practical advice on your role, key things to look out for, questions to ask, quote comparison guidance, checklists and next steps.
How much does a homeowner estimate cost?
Homeowner budget guidance starts from £80 + VAT. Standard building estimates start from £150 + VAT, and detailed residential estimates start from £250 + VAT.
