- Welcome TO RG Engineers
Structural & Architectural Engineers You Can Trust
Planning a loft conversion, extension or refurbishment? RG Engineers provides structural calculations, surveys, foundation designs and Building Regulation drawings that help secure approvals, avoid costly delays and keep residential, commercial and industrial projects progressing safely and efficiently.
- Structural Calculations & Plans
- Building Regulation Drawings
Our Clients
Trusted By Homeowners, Builders And Property Professionals
Our Services
Structural & Architectural Engineering Services For Your Project
Every project starts with a structural decision. Whether you are opening a load-bearing wall, extending a property, converting a loft, refurbishing a building or assessing an industrial unit, the right engineering support is essential. RG Engineers provides structural calculations, surveys, designs and technical documentation that help clients gain approvals, minimise risks and move construction projects forward with confidence.
Transform unused roof space with practical loft conversion designs supported by professional structural engineering advice.
Professional structural engineering solutions for safe designs, approvals, alterations, extensions and development projects.
We prepare practical drawings that help you understand the proposed layout and give builders clearer information before work begins.
Accurate structural calculations and plans supporting Building Control approval and efficient construction delivery.
Detailed Building Regulation drawings helping projects meet compliance requirements and construction standards.
Comprehensive structural surveys identifying defects, risks and recommendations before purchasing or alterations.
Our Services
Structural Engineering Services Designed To Keep Projects Moving
Every project starts with a structural decision. Whether you are opening a load-bearing wall, extending a property, converting a loft, refurbishing a building or assessing an industrial unit, the right engineering support is essential. RG Engineers provides structural calculations, surveys, designs and technical documentation that help clients gain approvals, minimise risks and move construction projects forward with confidence.
Structural Engineering Services
Professional structural engineering solutions for safe designs, approvals, alterations, extensions and development projects.
Loft & Extension Structural Engineer
Expert structural support for loft conversions and extensions with calculations and compliant designs.
Structural Calculations and Plan
Accurate structural calculations and plans supporting Building Control approval and efficient construction delivery.
Structural Engineer Building Regulation Drawings
Detailed Building Regulation drawings helping projects meet compliance requirements and construction standards.
Structural Survey Report
Comprehensive structural surveys identifying defects, risks and recommendations before purchasing or alterations.
Loft Conversion
Transform unused roof space into valuable living accommodation with expert structural engineering guidance.
Structural Surveys
Professional structural inspections providing clear assessments for homeowners, buyers, landlords and investors.
Foundation Designs
Practical foundation designs ensuring structural stability, compliance and long-term building performance.
Structural Alteration
Safe structural alteration designs for wall removals, refurbishments, openings and property improvements.
Sewer Diversions & Buildover Agreements
Expert guidance for sewer diversions and build-over agreements supporting successful project approvals.
Property Refurbishments
Structural engineering support for property refurbishments, upgrades and large-scale building improvements.
Client Feedback Intro
What Our Clients Say
Our clients choose RG Engineers because they need clear answers, reliable reports and practical design support. We help homeowners, builders and property professionals make confident decisions before starting, buying, altering or improving a building.
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. 
Trustindex verifies that the original source of the review is Google. Need Structural Or Architectural Engineering Advice?
Whether you are planning a loft conversion, structural alteration, foundation design, property refurbishment or commercial project, our engineers are ready to help.
Improving Properties With Safe Structural Solutions
Good structural engineering helps protect your budget, timeline and property value while supporting Building Regulations compliance. RG Engineers provides structural engineering services for loft conversions, extensions, foundation designs, structural surveys, industrial units and structural alterations. We deliver practical designs, clear technical guidance and approval-ready documentation that help homeowners, builders, architects and developers reduce risk, avoid delays and move projects forward with confidence.
Our Sectors
Sectors We Support
Our structural engineering services are designed for both residential and commercial clients. Whether you are improving a home, buying a property, managing an industrial unit or planning development work, we provide clear advice and practical engineering documents.
Our Sectors
Sectors We Support
Our structural engineering services are designed for both residential and commercial clients. Whether you are improving a home, buying a property, managing an industrial unit or planning development work, we provide clear advice and practical engineering documents.
Homeowners
We help homeowners plan loft conversions, extensions, wall removals, refurbishments, foundation work and structural repairs with clear calculations, surveys and approval-ready engineering support.
Builders And Contractors
We support builders with structural calculations, steel beam details, site advice and practical designs that help keep construction work accurate, safe and moving forward.
Architects And Designers
We work with architects and designers by providing structural input, calculations and technical drawings that support planning, Building Control and practical construction.
Developers And Investors
We help developers and investors assess structural risks, plan alterations, design foundations and prepare documents needed before buying, building or improving property assets.
Landlords And Property Managers
We provide structural surveys, defect reports and alteration advice for landlords and property managers who need clear guidance on safety, repairs and property condition.
Industrial Unit Owners
We support industrial property owners with surveys, structural reviews, loading advice, roof inspections and design support for alterations, repairs and fit-out projects.
Case Studies
Structural Engineering Support For Every Stage Of Your Project
From loft conversions and house extensions to foundation designs and industrial unit surveys, our engineers provide the technical support needed to keep projects progressing safely.
Why Choose Us
Why Homeowners, Builders And Developers Choose RG Engineers
RG Engineers supports homeowners, builders, architects, and developers with practical structural advice, clear drawings, and building control-ready calculations. From site inspections to final structural designs, our team explains each step clearly and provides solutions that are safe, compliant, and suitable for real construction work.
- Building Control Ready Calculations
- Practical Structural Design Support
- Clear Reports And Drawings
- Site Visits Available
- Professional Indemnity Insured
- Support From Start To Finish
Structural Drawings
Available On Request
For Urgent Structural Enquiries
Easy To Understand
Area We Serve
Local Structural & Architectural Engineers Serving Key Areas
RG Engineers provides structural engineering services throughout Farnham, Harrow, Chelsea, Ascot, Windsor, Marlow, Slough, Reading, Hampshire and Virginia Water.
Our understanding of local property types, extensions, loft conversions, refurbishments and commercial developments allows us to provide practical recommendations tailored to each project. Whether you require a structural survey report, foundation design, Building Regulation drawings or structural calculations, our team is available to support your project from concept through to completion.
- Farnham
- Harrow
- Chelsea
- Ascot
Trusted Structural & Architectural Engineering Support
Choosing the right structural engineer is about more than obtaining calculations or drawings. You need practical advice, reliable technical documentation and confidence that your project is progressing safely.
- Structural Calculations & Plans
- Building Regulation Drawings
- Structural Survey Reports
- Foundation Design Solutions
Our Blogs
Latest Structural Engineering Guides
Read our latest guides on structural calculations, loft conversions, foundation designs, surveys and Building Control requirements. These articles help homeowners and property professionals understand common structural issues before starting a project.
Planning an extension, loft conversion, or structural alteration can raise many cost questions. One of the first is often how much a structural engineer will charge. In the UK, structural
A structural survey in the UK commonly costs between £500 and £1,500. Current 2026 pricing data places the average cost at around £1,000. However, the final price depends heavily on
In most cases, you will need accurate architectural drawings before building a house extension. They may be required for planning permission, a Lawful Development Certificate, Building Control, structural design, builder
Frequently Asked Questions
Here are common questions clients ask before booking a structural engineer, survey or design service. These answers will help you understand what support may be needed for your project.
1. Can you help with urgent structural issues?
Yes. We provide prompt structural assessments, surveys, and engineering advice to identify risks and recommend the safest next steps for your project.
2. Do I need a structural engineer for a loft conversion or extension?
Most loft conversions and extensions require structural calculations and design input. Our engineers ensure your project is safe, practical, and ready for approval.
3. Can you provide structural calculations and plans?
Yes. We prepare accurate structural calculations and plans for extensions, loft conversions, wall removals, refurbishments, and new construction projects.
4. Do you produce Building Regulation drawings?
Absolutely. We create detailed structural engineer Building Regulation drawings to help support compliance and Building Control approval.
5. Can I arrange a structural survey before buying a property?
Yes. Our structural survey reports identify defects, movement, and potential structural concerns, helping you make informed property decisions.
6. Do you provide foundation design services?
Yes. We design foundations for extensions, new builds, structural alterations, and challenging ground conditions to ensure long-term stability.
7. Can you help with wall removals and structural alterations?
Yes. We provide structural designs, calculations, and beam specifications for safe wall removals and property alterations.
8. Do you assist with sewer diversions and build-over agreements?
Yes. We provide engineering support for sewer diversions and build-over agreements to help keep projects compliant and progressing smoothly.
9. Do you work on property refurbishments?
Yes. We support refurbishment projects with structural surveys, calculations, designs, and engineering advice for safe construction.
10. Do you work with homeowners, builders, and architects?
Yes. We regularly work with homeowners, architects, builders, developers, and commercial property owners across residential and commercial projects.
11. Can you help with industrial unit surveys and designs?
Yes. We provide industrial unit structural surveys, inspections, assessments, and design solutions for owners, investors, landlords, and businesses.
12. Which areas do you cover?
We provide structural engineering services across Farnham, Harrow, Chelsea, Ascot, Windsor, Marlow, Slough, Reading, Hampshire, Virginia Water, and surrounding areas.
