Structural Engineering
Assessments, calculations, steel beam designs and load-bearing alterations, with documentation prepared for Building Control approval.
Our Services
Construction Services Backed by Engineering Expertise
From new builds and extensions to structural steelwork and retrofit, every service is supported by our in-house Structural, Electrical and Mechanical Engineers.
All services
Residential Construction
Quality residential builds, delivered with engineering expertise and reliable craftsmanship.
Learn moreCommercial Construction
Professional commercial construction solutions, managed with precision and technical expertise.
Learn moreHouse Extensions
Well-planned residential extensions that add space, value and lasting quality to your home.
Learn moreLoft Conversions
Transforming unused loft space into functional, well-built living areas built to last.
Learn moreStructural Alterations & Steelwork
Structural changes and steelwork, engineered for safety and long-term reliability.
Learn moreRetrofit & Refurbishment Projects
Upgrading existing buildings for improved energy efficiency, comfort and performance.
Learn moreConstruction Consultancy & Project Management
Expert guidance and management, from planning to completion.
Learn moreNot Sure Where to Start?
Tell us about your project and we will advise on the right approach, with a free, no-obligation quotation.
Get a free quoteIntegrated Expertise
Design and Construction, Coordinated by One Team
Our design-and-build service combines engineering expertise with construction delivery. With structural, electrical and mechanical knowledge in-house, your project benefits from better coordination, efficiency and quality control.
About MarwellsElectrical Engineering
Electrical installations, power and lighting systems designed and coordinated by a company founded by an experienced Electrical Engineer.
Mechanical Engineering
Heating, ventilation, air conditioning and energy-efficient building solutions, planned alongside the structure from day one.
How We Work
From Concept To Completion
Every project is unique, so we take the time to understand your goals and keep communication transparent at every stage.
See our full process-
1
Consultation & Site Visit
We listen to your goals, visit the property where required and give you honest, practical advice before any commitment.
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2
Design & Engineering
Our Structural, Electrical and Mechanical Engineers develop a coordinated plan, including calculations and supporting documents.
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3
Quotation & Agreement
You receive a clear, free quotation and a written agreement setting out the scope of works, costs and expectations.
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4
Construction
Our team delivers the work to a high standard, with transparent communication at every stage of the build.
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5
Completion & Handover
We complete the project, check every detail with you and hand over a space that is functional, durable and built to last.
Planning a house extension, loft conversion, refurbishment or new build?
Get in touch with Marwells Construction to discuss your project and receive a free, no-obligation quotation.